division 11

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Project Number : 3206Document Name.: Civil SpecificationsDate: March 7, 2009Project : Cut & Bend Processing Bldg.Owner : Rajhi Steel Industries

Saudi Designers Eng. Consultant Division-11 Page 1 of 38

DIVISION 11

FINISHES

SECTION 11000 FLOOR AND WALL TILES

SUBSECTION: INDEX

P ART 1 GENERAL

1.01 Description1.02 Quality Assurance1.03 Submittals1.04 Product Delivery and Storage1.05 Extra Stock

P ART 2 P RODUCTS

2.01 Materials

P ART 3 - EXECUTION

3.01 Preparatory3.02 Installation3.03 Tolerances3.04 Cleaning and Protection

Part 1 - GENERAL

1.01 Description

A. Work includes providing floor and wall as indicated on Drawing.

1.02 Quality Assurance

A. Applicable Standards

Comply with Standards specified in this Section.

B. Manufacturer

De Steenbok B.V. Holland, Local Supplier: Saudi Arabian Markets Ltd., or approved equal.

1.03 Submittals

A. Manufacturers Literature

Submit manufacturers name and technical literature on tile, pavers and control jointmaterial to Consultant Representative.

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Saudi Designers Eng. Consultants Division-11 (Page 2 of 38)

1.04 Product Delivery and Storage

A. Delivery

Deliver materials to the job site in manufacturers original containers withgrade seals unbroken and labels intact.

B. Storage

Store materials in a clean, dry, covered area to prevent wetting or staining.

1.05 Extra Stock

A. Furnish SDEC in original cartons an additional 0.5% of each tile and paver selected, but in case less than one box of each selected color and not less

than one box of each selected color of trim units. Store in area designed byConsultant.

Part 2 Products

2.01 Materials

A. Floor Tile Size:

1. 600 mm x 600 mm x 12 mm thick square (Gail Tiles) or approvedequivalent.

2. 200 mm x 200 mm x 8 mm thick square (HRR Johnson) or approvedequivalent.

B. Wall Tile

1. 200 mm x 200 mm x 7 mm thick square (Gail Tiles) or approvedequivalent.

Color:

To be selected by Consultants Representative.

C. Leveling Coat Materials

Dry set mortars which is suitable for use with tile or dry-set mortar to which anequal volume of a mixture of 1 Portland cement and 1 parts sand has beenadded.

D. Portland Cement Mortar and Grout Materials.

Provide as specified in the referenced ANSI series specifications.

E. Dry-Set Mortar

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Pre-sanded Portland cement and additives, complying with ANSI A118.1.

F. Commercial Cement Grout

A propriety compound of Portland cement and additives, factory-blended todecease shrinkage and increase moisture resistance or approved equal.

G. Epoxy Setting and Grouting Materials

Comply with ANSI A118.3

H. Joint Sealer

Bal Cem Gold Star or approved equal.

Part 3 Execution

3.01 Preparatory

A. Inspection

Examine surface to receive tile and do not work until defects that will affecttile work have been corrected. Insure that all surfaces are dry, clean, firm,level and plumb before commencing installation.

3.02 Installation

A. General

Install tile in accordance with referenced ANSI Specifications and Tile Councilof America methods. Use only experienced tile setters and tradesmen for installing tile. Do not commence installation until work of other trades whichgoes in or behind tile has been completed. Provide a minimum temperature of 50% oF during installation and until mortar and grout have cured. Extend tilework into recesses under shelves, counter cabinets, fixtures, etc. to form acomplete covering without interruptions, except as otherwise shown.Terminate work neatly at obstruction. Edges and corners without disruption of pattern or joint alignment.

B. Mixing

Mix mortar and grout to conform to a manufacturers instructions.

C. Layout, Cutting and Fitting

Center fields and patterns on applied areas with no tiles less than one-half size. Cut and drill tile and trim accurately without damage. Cut tile, arrange

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and maintain joint pattern around accessories. Rub smooth exposed cutedged with abrasive stone. Grind and fit tile carefully at intersections. Againsttrim finish, at built-in fixtures and accessories, so that plates, escutcheon and

collars will overlap cuts.

D. Pattern and Joints

Unless otherwise shown, lay tile stack bond pattern with uniform widths.

E. Leveling Coat

Clean surface to permit bonding of leveling coat. Float leveling coat mortar with pressure over substrate. Vibration in surface of leveling coat shall notexceed 1/8 in 8 0 from the required plan. Allow leveling coat to cure atleast 24 hours before tile is applied.

F. Portland Cement Mortar Bed

Use Portland cement beds for installing tile as indicated on drawings by floor depressions or by details, comply with applicable requirements of ANSI

A108.3.

G. Cement Mortar Bonded Floor Tile

Comply with applicable requirements of ANSI A108.3.

H. Dry-Set and Wall Tile


I. Epoxy Set and Grouted Floor Tile


J. Adhesive Set Tile

Apply non flowing type adhesive coat over elastometric membranewaterproofing with notched trowel in sufficient quantity to contact 90% of thetile surface when tile is set into place and depressed into adhesive coat. In nocase shall the adhesive be applied at a rate of more than 9 sq.m./3.8 liters(100 sq.ft./gal.) for a 0.28 mm (0.011 in.) dry film thickness. Prime tile isaccordance with manufacturers recommendations.

K. TrimCoat trim shapes with mortar used for setting. Set trim same as tile.

L. GroutForce maximum of grout into joints. Before grout sets, compress and tool the

joints neat and flush with surface of tiles. Fill gaps and skips. Provide finishgrouted joints that are uniform in color, smooth, without voids, pinholes or lowspots. Comply with manufacturers instructions.

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M. CuringCure grout in accordance with referenced ANSI specification.

N. Control and Expansion Joints

Provide as recommended in the TCA Handbook for Ceramic Tile Installation.Install control joints over all concrete floor control joints and isolation joints atcolumns, floor and wall expansion joints and changes in substrate; alsoaround the perimeter of all floors., Install removable divider strips of the samedepth as the finished tile system, including setting bed. Remove strips after grouting and curing operation.

1. Sealant

Type recommended by manufacturer for intended application asapproved by Consultants Representative.

2. After tile is grouted and completely dry, remove wood strips and brushor air blast joints clean. Install back-up, primer and sealant materials inaccordance with sealant manufacturers recommendations. Removetape immediately after sealing. If primer is spilled, clean spillage inaccordance with primer manufacturers recommendations.

3.03 Tolerances

A. Finish tile surfaces shall not vary more than 3.175 mm in 2.5 m (0.125 in. 8ft.) from the required plane in any area, nor more than 1.59 mm (0.0625 in.)within any single running foot. (0.305 m).

3.04 Cleaning And Protection

A. Cleaning

Thoroughly sponge and wash tile, diagonally across joints with clean water after grout has stiffened. Clean surfaces by rubbing with damp cloth or sponges and finally polish with clean, dry cloths.

B. Joint Sealing

After cleaning is completed, seal grout joints with joint sealer to conform tosealer manufacturers directions and referenced ANSI specifications. Cleansealer from faces of tile.

C. Protection

Adequately protect all materials from chipping, breaking or from beingmarred. Close spaces to traffic and other work during installation and for atleast 48 hours after completion of work.

- END OF SECTION -

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DIVISION 11

FINISHES

SECTION 11100 GYPSUM BOARD CEILING

SUBSECTION: INDEX

P ART 1 GENERAL

1.01 Description1.02 Applicable Codes and Standards1.03 Submittals

1.04 Product Delivery and Storage1.05 Environmental Conditions

P ART 2 P RODUCT

1.01 Materials1.02 Framing and Furring Members1.03 Gypsum Wallboard1.04 Fasteners1.05 Joint Tape and Compound1.06 Joint Treatment1.07 Accessories

P ART 3 - EXECUTION

3.01 Installation3.02 Adjustment and Cleaning

Part 1 - General

1.01 Description

A. This Section covers furnishing and installation of gypsum board and relatedaccessories to metal studs or furring channels for curtain covers and soffit-inareas indicated on the drawings. Furnish all labor, materials, tools andequipment to complete the work.

B. Related Work

Section 13000 - Painting

1.02 Applicable Codes and Standards

The following codes and standards are intended to provide an acceptable level of quality for materials and products.

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A. ASTM American Society for Testing and Materials

C 36 Gypsum WallboardC 442 Gypsum Backing BoardC 475 Joint treatment for Gypsum Board ConstructionC 630 Water-Resistant Gypsum Backing BoardC 645 Non-Load (Axial) Bearing Steel Studs, Runners (Tracks) and

Rigid Furring Channels for Screw Application of GypsumBoard

E 84 Surface Burning Characteristic of Building MaterialsE 119 Fire Tests of Building Construction and Materials

1.03 Submittals

Submit to the Architect the following items for review before commencing for work.

A. Certificates: Furnish manufacturers certification that materials meet or exceed specification requirements.

B. Manufacturers Instructions: Furnish manufacturers printed instructions for installation of the assemblies.

C. Material Samples: Minimum four (4) finished samples 300 x 300 mm mountedon appropriate size boards.

1.04 Product Handling, Delivery and Storage

A. Delivery and Handling

Deliver materials to the job site with manufacturers labels intact andlegible.

Handle materials with care to prevent damage in accordance with themanufacturers instruction.

Deliver fire-rated materials bearing testing agency label and required fireclassification numbers.

B. Storage: Store materials inside under cover, stack flat, off floor and inaccordance with manufacturers instructions.

1.05 Environmental Conditions

Provide Adequate ventilation during and following joint treatment application. Under slow drying condition additional drying time shall be allowed between coats of jointtreatment. Installed Materials shall be protected from drafts during hot, dry weather.

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Part 2 Products

2.01 General

A. Procurement of all goods and products covered by these specifications mustbe approved by the Architect.

2.02 Framing and Furring Members

A. Channels

1. General: Channels shall be formed steel and shall be galvanized or coated with manufacturers standard protective coatings. Steel studs,ceiling and floor runners and rigid furring channels shall meet therequirements of ASTM C645.

2. Ceiling and floor runner channels shall not be less than 0.5 mm

nominal thickness with 30 mm flanges and channel when sized to nestwith comparable steel studs hereinafter specified.

3. Furring channel shall not be less than 0.5 mm nominal thickness, C:or-hat-shaped in Section with 30 mm minimum crown for wallboardattachment.

4. Main carrying channel shall be of minimum of 38 mm hot or cold-rolledsteel channel. Hot-rolled channel shall weigh not less than0.75 kg per meter. Cold-rolled channel shall not be less than 1.2 mm nominalthickness (18 gauge) with flanges at least 13 mm wide.

5. Resilient furring channel shall be not less than 0.5 mm nominalthickness (26 gauge). Channel shall be hat-shaped, Z-shaped or haveother modified channel shape with minimum 13 mm leg or legs toprovide furring projection, minimum 35 mm crown or surface toprovide wallboard mounting surface and minimum 13 mm flange or flages with folded edge for channel mounting, leg or legs shall beperforated or expanded to provide resilience. Approximate weight or resilient furring channel shall be 0.30 kg/meter.

B. Steel Studs shall be formed from steel sheets and galvanized or coated withthe manufacturers standard protective coating. Stud shall be C shapednot less than 0.5 mm nominal thickness with wen dimension as shown on thedrawings. Stud flanges shall not be less than 30 mm wide, and each flangeshall, in addition, have stiffening lips shall be at least 6 mm wide with turnedor folded edges. Where required for utility lines and/or wires, stud webs shallhave preformed holes or knockouts not larger than 0.002 m 2 spaced not lessthan 200 mm centers (except that holes or knockouts for 40 mm studs shallnot be larger than 0.001 m 2) .

C. Hangers and Tie Wires

1. Hangers supporting main runner channels shall be of steel wire notless 8 than 4 mm nominal diameter (8 gauge) and shall be zinccoated. Flat steel hangers, 25 mm by 5 mm, with zinc coating, may besubstituted for wire hangers.

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2. Tie wires for splicing stud furring or securing stud furring to mainrunner channels or to structural members shall be double strands of galvanized annealed steel of not less than 1.2 mm nominal diameter

(18 gauge).

2.03 Gypsum Wallboard

A. Regular gypsum wallboard shall meet the requirements of ASTM C36, of minimum 12 mm thickness if not shown on the drawings, and with tapered or beveled edges.

B. Water-resistant board shall meet the requirements of ASTM C630, type X, of thickness as shown on the drawings and with tapered edges.

C. Backing board shall meet the requirements of ASTM 442, type X, if fire ratingis required of thickness as shown on the drawings and with square edges.

2.04 Fasteners

A. Screw shall be self-drilling, self-tapping, bulge head, for use with power driver tool and shall be the type recommended by the gypsum wallboardmanufacturer for the intended application, such as wallboard to sheet metal or wallboard to wallboard.

B. Length of screws for single layer or base layer application shall be 25 mmminimum face layer of two layer application, 40 mm minimum and wallboardto wallboard in multiple application, 35 mm minimum.

2.05 Joint Tape and Compound

A. Joint reinforcing tape shall be perforated, not less than 47 mm nor more than56 mm wide and be not more than 0.30 mm thick. The tensile strength incross direction shall be not less than 5N/1 mm.

B. Joint compound shall be as recommended by the gypsum wallboardmanufacturer for the intended application and in conformance with ASTMC475.

2.06 Joint Treatment

1. Make sure that the panel surfaces are ready for joint treatment by checkingthe edges for damages and sealing fastener heads and sending below levelof surface all protrutions.

2. Fill the joint between the panels with joint compound which shall be of highstrength hardening type ideally suited to fill offsets and voids left in concrete.

3. Apply high strength reinforcing tape with joint compound to reinforce the jointsand corners between gypsum dry wall and siporex surfaces.

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2.07 Accessories

Metal trim features for wallboard shall be formed from zinc-coated steel not less than

0.43 mm nominal thickness for corner beads and 0.39 mm thickness for other trim.Metal trim shall be in the following shapes and sizes:

A. Corner beads shall be angle-shaped with 3 mm bead at apex of the angle andwith wings 25 mm or 30 mm wide as required to properly lap wallboard edgeand perforated or expanded nailing or screwing, or with combination metaland paper wings bonded together, not less than 30 mm wide. All beads shallbe suitably designed to receive joint treatment.

B. Angle edge trim for use at perimeter of wallboard ceilings which abutpartitions of walls not having a wallboard finish shall be angle-shaped withwings not less than 20 mm wide. Concealed wing shall be perforated for nailing or screwing and exposed wing edged folded flat.

C. Control joint strips for intermediate control joints in wallboard finish on metalstud partitions shall consist of a U-shaped strip 11 mm deep with tapeprotected 6 mm opening and integral perforated wings 22 mm wide at eachside. For fire rated partitions provide protective construction behind thecontrol joint as shown on the drawings.

D. Channel edge trim for tripping top and ends of wallboard partitions shall bechannel shaped with thickness to match thickness of wallboard. Concealedwing shall be 30 mm wide. Exposed wing shall 13 mm wide if channel is allmetal and requires no finishing or 6 mm wide if perforated tape supplementalflange finishing is included.

Part 3 - Execution

3.01 Installation

A. Framing, Walls: Align floor and ceiling tracks to assure plumb partition.Secure track with suitable fasteners at a maximum of 600 mm on center.Position studs in track spaced as shown on the drawings and rotate into placefor fabrication fit. Secure studs located adjacent to door and window frames,partition intersections and corners with screws recommended by themanufacturer through both flanges of studs and tracks.

B. Framing, Ceilings:

1. Direct attachment: Space position furring channels in accordance withthe manufacturers recommendations or as shown on the drawings.

C. Furring Channel Erection-Direct Attachment: Attach metal furring channels tomasonry or concrete surfaces, either vertically or horizontally, as shown onthe drawings, spaced a maximum of 600 on center. For channels positionedhorizontally, attach a furring channel not more than 100 mm from both floor line and ceiling line. Secure channels with the manufacturers recommended

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fasteners placed on alternate channel flanges and spaced a maximum of 600mm on center.

D. Wallboard - General

1. Use wallboard of maximum length to minimize end joints and stagger end joints when they occur.

2. Locate end joints as far as possible from center of wall or ceiling.3. Abut wallboards without forcing and neatly ends and edges of

wallboard.4. Support ends and edges of wallboard panels on framing or furring

members.5. Gypsum wallboards shall be cut by scoring and breaking, or by

sawing, working from the face side. Where wallboard meets projectingsurfaces, it shall be neatly scribed.

E. Wallboard Application

1. Single Layer

a) Ceilings: Apply wallboard its line dimension at right angles tothe screw furring channels. Locate wallboard butt joints over the center of furring channels. Attach wallboard with self drilling screws at 30 mm on centers in the fields of the board;200 mm on center at butt joints, located not less than 9 mmfrom edges. Screws type shall be as recommended by thewallboard manufacturer.

b) Mechanical Fasteners:

1. Attach single layer of wallboard to metal framing withtype of screw recommended by the wallboardmanufacturer.

2. Minimum edge clearance from fasteners shall be 9 mm.3. For parallel application (vertical) fasten wallboard with

screws spaced a maximum of 300 mm on certain infield and 200 mm on center along abutting edges.Stagger screws on abutting edges of ends.

4. For perpendicular application (horizontal) fastenwallboard with screws spaced a maximum.

5. Drive screws with positive clutch electric screw driver.

F. Joint System

1. Ready mixed joint compound shall be used in accordance withmanufacturers instructions.

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2. A uniformly thin layer of joint compound shall be applied over the jointapproximately 100 mm wide. The tape shall be centered over the jointand embedded into the compound leaving sufficient joint compound

under the tape to provide proper bond. Ceiling and wall angles andinside corner angles shall be reinforced with tape folded to conform tothe angle and embedded into the compound.

3. After compound is thoroughly dry, approximately 24 hours, the tapeshall be covered with a coat of joint compound or topping compoundspread over the tape and approximately 75 mm on each side of thetape, and feathered out on the edge. After thoroughly dry, another coat of joint compound or topping compound shall be applied with aslight, uniform crown over the joint. This coat shall be smooth and theedges feathered approximately 75 mm beyond the proceeding coat.

4. All inside corners shall be coated with at least one coat of joint

compound or topping compound with the edges feathered out.

5. All screws head dimples shall receive three coats. This may beapplied as each coat is applied to the joints.

6. Flanges of wallboard corner bead shall be concealed by at least twocoats of compound. The first coat shall be joint compound and thesecond coat may be joint or topping compound, feathered outapproximately 225 mm on both side of the exposed metal nose.

7. Allow each application of compound to joints and fasteners to dry,then sand if necessary. Caution shall be used to avoid roughing of thewallboard paper. All wallboard and treated areas shall be smooth andready for decoration.

3.02 Adjustment and Cleaning

A. When face paper is punctured drive new screw approximately 38 mm frompuncture and fill damaged surface with compound.

B. Ridging:

1. Do not repair ridge until condition has fully developed, approximatelysix months after installation.

2. Sand ridges to reinforcing tape without cutting through tape and fillconcave areas on both sides of ridge with topping compound.

3. After fill is dry, blend in topping compound over repaired area.

C. Fill cracks with compound and finish smooth and flush.

- END OF SECTION -

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DIVISION 11

FINISHES

SECTION 11200 PAINTING

SUBSECTION: INDEX

P ART 1 - GENERAL

1.01 Description1.02 Quality Assurance

1.03 Submittals1.04 Product Delivery, Storage and Handling1.05 Job Conditions

P ART 2 P RODUCTS

2.01 Manufacturers2.02 Materials2.03 Colors2.04 Mixing

P ART 3 EXECUTION

3.01 Preparation of Surface3.02 Inspection3.03 Application3.04 Cleaning

Part 1 - General

1.01 Description of Work

A. Work includes painting and finishing of all interior and exterior exposed itemsand surface throughout the project, and interior surfaces as shown onSchedule of Finishes.

1. Surface preparation, priming and coats of paints specified are inaddition to shop-priming and surface treatment specified under other Section, except as otherwise specified.

B. Work includes field painting of all exposed bare and covered pipes and ducts,hangers, all exposed steel and iron work and shop primed structural steelsystem, and primed metal surfaces of equipment installed under themechanical and electrical work, as specified, or scheduled, except wherearchitectural concrete are to be exposed as finished surface.

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C. Painting as used herein means all coating systems materials, includingprimers, emulsions, enamels, sealers and fillers and other applied materials

whether used as prime, intermediate of finish coats.

D. Paint all exposed surfaces whether or not designated in schedules, exceptwhere the natural finish of material is obviously intended and specificallynoted as surface not to be painted. Where items or surfaces are notspecifically mentioned, paint these the same color as adjacent similar materials or areas. If color or finish is not designated, ConsultantsRepresentative will select these from standard colors available from materialsupplier.

E. Paint all exposed mechanical and electrical equipment, conduit or pipesexposed on exterior or roof of buildings. Paint above regardless of type of material.

1.02 Quality Assurance

A. Include on label of containers:

Manufacturers Name Manufacturers Stock Number Type of Paint Color Instruction for Reducing, where Applicable Label analysis

1.03 Submittals

A. Samples

Submit color chips of all finishes and colors to be used. Label each samplepanel as to finish, color and substrate material. Submit 12 51 mm (2)square samples of each color and finish selected.

B. Mock-Up

Prepare for approval two (2) 0.305 m x 0.305 m (12 x 12) samples of eachcolor, using materials, method and workmanship identical to those to beemployed on the job.

1.04 Product Delivery, Storage and Handling

A. Delivery of Materials

1. Deliver sealed containers with labels legible and intact.

B. Storage of Materials

1. Store only acceptable project materials on project site.

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2. Store in a suitable location. Restrict storage to paint materials andrelated equipment only.

1.05 Job Conditions

A. Environmental Requirements

1. Comply with manufacturers recommendation as to environmentalconditions under which coatings systems can be applied.

2. Do not apply finish in areas where dust is being generated.

B. Protection

1. Cover or otherwise protect finished work of other trades and surfaces

not being concurrently or not to be painted.

Part 2 Products

2.01 Manufacturers

A. Except as otherwise specified, paint materials shall be the products of thefollowing manufacturers:

Saudi Paint Co., Ltd. Riyadh Sigma Paint Dammam Hempel Industrial Coatings Berger Paints Co., Ltd.

B. Materials selected for coating for each type of surface shall be the product of a single manufacturer.

2.02 Materials (Paint)

A. Products specified and scheduled are as manufactured by Hempel IndustrialCoatings, unless otherwise indicated, similar products of other manufacturerslisted in Paragraph 2.01 may be furnished in lieu of those listed when approveby Consultants Representative.

B. Provide the best quality grade of various types of coatings as regularlymanufactured by approved paint materials manufacturers. Materials notdisplaying manufacturers identification as s standard. Best grade product willnot be acceptable.

2.03 Colors

A. Deliver paints and enamels ready-mixed to job site.

B. Accomplish paint mixing job when acceptable to the ConsultantsRepresentative.

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C. Mix only in mixing pails placed in suitable fixed non-ferrous or oxide resistantmetal pans.

Part 3 Executi on

3.01 Inspection

A. Examine surfaces scheduled to receive paint and finishes for conditions thatwill adversely affect execution, permeance or quality of work and whichcannot be put into acceptable condition though preparatory work as includedin Article 3.01 of this Section.

B. Do not proceed with surface preparation or coating application until conditionsare suitable and acceptable to Consultants Representative.

3.02 Preparation of Surfaces

A. General: Perform preparation and cleaning procedures in strict accordancewith paint manufacturers instruction and as herein specified, for eachparticular substrate condition.

B. Remove all hardware, hardware accessories, machined surfaces, plates,lighting fixtures and similar items in place and not to be finish-painted or provide surface applied protection prior to preparation and paintingoperations. Reinstall removed items by workmen skilled in trades involved.

C. Clean surfaces to be painted before applying paint or surface treatment.Remove oil and grease to mechanical cleaning. Program cleaning andpainting so that contaminants from cleaning processes will not fall onto wet,newly-painted surfaces.

D. Sand and feather edge abraded or damaged areas of shop coats of paintbefore touch-up painting.

E. Ferrous Metal

1. Clean ferrous surfaces, which are not coated of oil, grease, dirt, loosemill scale and other foreign substances by solvent or mechanicalcleaning.

2. Sand and touch-up shop-applied prime coats wherever damaged or bards, where required by other Sections of these Specifications. Cleanand touch-up with same type shop primer.

3.03 Application

A. General Requirements

1. Do not apply initial coating until moisture content of surface is withinlimitations recommended by paint manufacturer.

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2. Apply paint enamel with suitable brushes (or spraying equipment).

a) Rate of application shall not exceed that as recommended bypaint manufacturer for the surface involved.

b) Keep brushes and spraying equipment, clean, dry free fromcontaminants and suitable for the finish required.

3. Comply with recommendations of product manufactured for dryingtime between succeeding coats.

4. Apply additional coats when undercoats, stains or other conditionsshow through final coat of paint, until paint film is of finish, color andappearance.

5. Re-coat primed and sealed walls where there is a evidence of suctionor unsealed areas in first coat, to assure a finish coat with no burnthrough or other defects due to insufficient sealing.

6. Pigmented (Opaque) Finishes : Completely cover to provide anopaque, smooth surface of uniform finish color, appearance andcoverage. Cloudiness, spotting, holidays, laps, brush marks, runs,sags, ropiness or other surface imperfections will not be acceptable.

7. Vary slightly the color of successive coats.

8. Sand dust between each coat to remove defects visible from adistance of 1.524 m (5 ft.).

9. Inspection

a) Do not apply additional coats until complete coat has beeninspected by the Consultants Representative.

b) Only inspected coats of paint will be considered in determiningnumber of coats applied.

10. Leave all parts of molding clean and true to details with no undueamount of paint in corners and depressions.

11. Make edges of paint adjoining other materials clean and sharp with nooverlapping.

12. Provide Wet Paint signs as required to protect newly-paintedfinishes. Remove temporary protective wrappings provided by othersfor protection of their work, after completion of painting operations.

3.04 Cleaning

A. Wire brush, sand and touch-up and restore finish where damaged.

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B. Remove spilled, splashed or splattered paint from all surface.

C. Do not mark surface finish or item being cleaned.

D. Leave storage space clean and in condition required for equivalent spaces inproject.

E. During progress of work, remove from project daily all discarded paintmaterials, rubbish, cans and rags.

- END OF SECTION -

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DIVISION 11

FINISHES

SECTION 11300 VINYL TILES FLOORING

SUBSECTION: INDEX

P ART 1 - GENERAL

1.01 Description1.02 Related work1.03 Referenced Standard1.04 Manufacturer 1.05 Submittals


P ART 2 P RODUCTS

2.01 Materials

P ART 3 EXECUTION

3.01 Inspection of Surface3.02 Preparation3.03 Application of Adhesives3.04 Installation3.05 Cleaning and Protection

Part 1 - General

1.01 Description of Work

Work in this Section includes, but is not limited to; furnishing and installing rubber tileand line base as shown on the drawings.

1.02 Related Work

A. Section 11000 Floor and Wall tilesB. Section 12000 Suspended Acoustic Tiles and Gypsum Board CeilingC. Section 13000 - Painting

1.03 Referenced Standards

A. American Society for Testing and Materials (ASTM):

1. ASTM D 2240 : Shore A Harden2. ASTM D 412 : Tensile Strength3. ASTM D 412 : Elongation

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B. Federal Standards

1. FS L-F475 (1) Int. AMD2 : Floor Covering

1.04 Manufacturer

Rubber tile, cove base, edge strip and other accessories required herein shall be byFLEXCO Company or local distributor (approved equal) in the Kingdom.

1.05 Submittals

Submit samples of each type, color and finish of rubber tile, cove base and edgestrips, include full range of color and pattern.


A. Deliver materials in manufacturers original unopened containers with labelsindicating brand, colors, patterns and quality designations.

B. Store materials in original containers in accordance with manufacturersdirections and recommendations.

Part 2 Produc ts

2.01 Materials

A. Rubber Tile : All floor shown in the finish and listed herein rubber tile (vinyl).The tile shall be constructed homogeneously of first quality resilient rubber compound and molded with a design profile of 32 mm (1 ) diameter raisedbeveled discs. Raised disc design shall be 0.89 mm (0.035 in.) profile andshall conform to Federal Specification SS-T-312B, Type II, dated 11/14/79and shall contain no asbestos fiber.

B. Rubber Cove Base: Flooring accessories shown in the finish schedule or listed herein as cove base or wall base shall be Flexco Rubber cove base. Itshall be constructed of first quality materials properly vulcanized, and shall besmooth and free from imperfections which detract from its appearance. Thebase shall conform fully to the requirements of Federal Specifications SS-W-40A, Type I.

All cove bases shall be of the set-on type with the height of 100 cm.

C. Adhesive (Cements): Waterproof, stabilized type as recommended by thesheet flooring manufacturer. Asphalt emulsions and other non-waterproof types not acceptable.

D. Concrete Slabs Primer: Non-staining type as recommended by the sheetflooring manufacturer.

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E. Edging Strips: 3 mm ( ) thk. homogeneous rubber composition, tapered or bullnose edge, color to match sheet flooring or as selected from standardcolors available.

F. Crack Filler: Type and brand recommended by the floor coveringmanufacturer.

G. Cleaner: Neutral cleaning material recommended by tile manufacturer.

H. Way: High grade non-slip water emulsion as recommended by tilemanufacturer.

Part 3 - Execution

3.01 Inspection of Surfaces

A. Examine substrate for excessive moisture content and unevenness whichcould prevent execution and quality of rubber tile flooring as specified.

B. Do not proceed with installation of resilient sheet flooring until defects havebeen corrected except when correction is indicated under preparation in thisSection.

3.02 Preparation

A. Remove dirt, oil grease or other foreign matter from surfaces to received floor covering material.

B. Fill cracks less than 1.6 mm (1/16) wide and depression less than 3.0 mmdeep with crack filler.

C. Primer surfaces if recommended by floor covering manufacturer.

D. Continuously heat areas to received flooring to 21 oC (70 oF). Maintain 21 oC(70 oF) temperature continuously during and after installation asrecommended by flooring manufacturer, but for not less than 48 hours.

3.03 Application of Adhesives

A. Mix and apply adhesives in accordance with manufacturers instructions.

B. Provide safety precautions during mixing and applications as recommendedby adhesive manufacturer.

C. Apply uniformly over surfaces:

1. Cover only that amount of area which can be covered by flooringmaterial within the recommended working time of the adhesive.

2. Remove any adhesive which dries or film over.3. Do not soil walls, bases or adjacent areas with adhesives.

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4. Promptly remove any spillage.5. Apply adhesive with notched trowel or other suitable tool.6. Clean trowel and re-work notches as necessary to ensure proper

application of adhesive.

3.04 Installation

A. Install rubber tile flooring only after all finishing operations, including paintinghave been completed and permanent heating system is operating. Moisturecontent of concrete slabs, building air temperature and relative humidity mustbe within limits recommended by sheet flooring manufacturing.

B. Place rubber the flooring with adhesive cement in strict compliance with themanufacturers recommendations. Butt tightly to vertical surfaces except atwalls and edgings. Scribe as necessary around obstructions and to produce

neat joints, laid tight, even and straight. Extend sheet flooring into door reveals and similar openings.

C. Tightly Cement sheet flooring to sub-base without open cracks, voids, raisingand puckering at joints, telegraphing of adhesive spreader marks or other surface imperfections.

D. Lay rubber tile flooring to provide as few seams as possible with the mosteconomical use of materials. Match edges of color shading and pattern atseams in compliance with manufacturers recommendation such as reversingadjoining sheets of the same roll so that the abutting edges are from thesame edge of the roll.

1. Weld seams in rubber tile sheet flooring and base in compliance withthe manufacturers instruction to provide a seamless installation.

E. Place resilient edge strips tightly butted to sheet flooring and base to securewith adhesive. Install edging strips at all unprotected edges of sheet flooringand base, unless otherwise shown.

3.05 Cleaning and Protection

A. Remove any excess adhesive or other surface blemishes form rubber tileflooring, using neutral type cleaners as recommended by the sheet flooringmanufacturer. Protect installed flooring from damage by use of heavy Kraftpaper or other covering.

B. Flashing: After completion of the project and just prior to the final inspection of the work thoroughly clean floor and accessories.

- END OF SECTION -

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DIVISION 11

FINISHES

SECTION 11400 LATHING AND PLASTERING

SUBSECTION: INDEX

P ART 1 - GENERAL

1.01 References1.02 General Requirements1.03 Submittals1.04 Delivery and Storage

P ART 2 P RODUCTS

1.01 Miscellaneous Items1.02 Steel Channels1.03 Hangers and Fastening1.04 Plastering Accessories1.05 Lath1.06 Portland Cement Plaster

P ART 3 EXECUTION

1.01 Ceiling, Framing and Furring1.02 Lathing1.03 Openings1.04 Installation of Accessories1.05 Plaster Thickness and Surface Evenness1.06 Machine Application1.07 Proportions and Mixing1.08 Application of Finishes1.09 Patching1.10 Sample of Completed Work

Part 1 General

1.01 References

The publications listed below from a part of this specification to the extent referred.The publications are referred to in the text by basic designation only. AmericanSociety for Testing and Materials (ASTM).

a) ASTM C-29 (1987) Unit Weight and Voids in Aggregateb) ASTM C-35 (1987) Inorganic Aggregates for use in Gypsum Plaster c) ASTM C-150 (1986) Portland Cementd) ASTM C-206 (1984) Finishing Hydrated Lime

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e) ASTM C-754 (1988) Installation of Steel FramingMembers to received screw attached gypsum

f) ASTM C-841 (1987) Installation of Interior Lathing and Furring

g) ASTM C-842 (1985) Application of Interior Gypsum Plaster h) ASTM C-847 (1988) Metal Lathi) ASTM C-926 (1986) Application of Portland Cement Based Plaster

j) ASTM C-933 (1980 R 1985) Welded Wire Lathk) ASTM C-1032 (1986) Woven Wire Plaster Base

Federal Specifications (FS)

a) FS QQ-N-281 Nickel-Copper Alloy Bar, Rod, Plate, Sheet,Strip, Forging and Structural and Special ShapeSections.

b) FS QQ-W-243 Wire, Steel, Corrosion-Resisting

c) FS QQ-W-461 Wire, Steel, Carbon (Round Bare & Coated)

1.02 General Requirements

Lath and plaster shall be applied as specified to those areas indicated in the finishschedule. Except otherwise specified, the works shall conform to ASTM C-754, C-842 & C-926.

1.03 Submittals

Detail shop drawings shall be submitted and shall include installation details for ceiling framing and furring. For framing and furring is required to support ceilingmounted items and opening in the ceiling. Detail drawings shall include descriptivedata, catalog cuts and proposed plaster mix ingredients.

For power driven fasteners may be used only when approved in writing.

1.04 Delivery and Storage

Manufactured materials shall be delivered in the original packages, containers andbundles bearing the name of the manufacturer and brand name. Plaster, cement andlime shall be stored off the ground under watertight cover and away deterioratedmaterials shall be removed from the premises.

Part 2 Products

2.01 Miscellaneous Items

Miscellaneous items such as bolts, expansion shields, clips or other items nototherwise specified shall be as recommended by the product manufacturer andapproved prior to use.

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1.01.1 Nails and Staples

Nails and staples shall be of steel and shall conform to sizes and shapes as

specified. Sizes specified are minimum.

2.02 Steel Channels

Hot or Cold Channels

Channels are used for framing and furring shall be given a shop coat of manufacturers standard protective coating or shall be galvanized. Cold-rolledchannels shall have flanges not less than 7/16 or 11.11 mm wide. The minimumweight of channels shall be as shown in ASTM C-841.

2.03 Hangers and Fastening

1.03.1 Hangers

Hangers supporting runner channels shall be soft, annealed steel wire notless than 0.1620 inch. Nominal diameter, 8 gauge, conforming to FS QQ-W-461 (ASI No. 1010, 1008 or 1006, Class I, zinc coated) for flat iron or steelstraps at 3/32 by 7/8 (22.23 mm) size, coated with zinc, cadmium or rushinhibiting paint may be substituted for the wire hangers.

1.03.2 Fastenings

The wire, clips, rings and other fastenings shall be corrosion resistance steelconforming to FS-QQ-W-423, composition 302, 304, or 316, condition A or nickel-copper alloy conforming to FS-QQ-N-281, Class A or B annealedcondition except walls, partition and other vertical surfaces not incorporated inceiling construction maybe erected with soft, annealed steel conforming toFS-QQ-W-461 AISI No. 1010, 1008 or 1006, Class I zinc coating. Tie wire for constructing partitions and vertical furring, for securing metal lath to supportand for lacing shall not be less than 0.0475 inch diameter, 18 gauge. Tie wirefor other application shall not be less than 0.0625 inch diameter, 16 gauge.Clips used in lieu of the wire securing the furring channels to the runningchannels in ceiling construction shall be made from strip not less than 1/8inch or 3.18 mm thk. or shall be hairpin clip, formed of wire not less than0.01620 inch nominal diameter, 8 gauge. Other clips and rings or fastening of similar materials shall be equivalent in holding power to that provided by thewire for the specific application.

2.04 Plastering Accessories

Plastering accessories shall be PVC per ASTM D-3678, or steel protectedgalvanizing except the manufacturers standard protective coating shall be permittedfor cornerite and striplath.

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comply with ASTM C-1032 with a maximum of 1 inches (38.10 mm) x(38.10 mm) mesh wire not less than 0.540 inch nominal diameter, 17 gauge.Expanded metal or woven wire lath shall be fabricated in a manner to provide

not less than (6.35 mm) keying between wire and paper backing or keyingshall be obtained by a uniform series of slots in a paper separator wovenbetween the two layers of wire.

2.06 Portland Cement Plaster

1.06.1 Aggregates

The unit of aggregates shall be determined in accordance with ASTM C-29. Aggregates shall conform to ASTM C-35, except the cradation of natural or manufactured sand for Portland cement plaster shall be as follows:SAND, PERCENTAGE BY WEIGHT, RETAINED ON EACH SIEVE

S IEVE S IZE M AXIMUM MINIMUM

4 0 -8 8 2

16 38 2230 78 5250 97 65

100 100 97

1.06.2 Portland Cement

Portland cement shall conform to ASTM C-150, Type I or Type II. Only onetype and brand of cement shall be used in the work.

1.06.3 Water

Water shall be clean, fresh potable and free from injurious amounts of oils,acids, alkalis and organic matter injurious to the plaster.

1.06.4 Lime

Lime shall conform to ASTM C-206. Special finishing hydrated lime shall bemachine mixed with water to form a putty and shall be allowed to stand for atleast 15 minutes before using.

Part 3 Execution

1.01 Ceiling Framing and Furring

Layout of ceiling framing and furring shall be as indicated. Suspend system shall

conform to ASTM C-754 and ASTM C-841. Where channels are spliced, the endsshall be overlapped not less than 12 inches (300 mm) for 1 (38.10 mm) channelsand less than 8 (200 mm) for (19.05 mm) channels with flanges of channels

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interlocked and securely tied near each end of the splice with two loops of the wire.Splices shall be staggered.

1.01.1 Hangers

Wire or strap hangers shall be attached to wood or concrete members in ASTM C-841, except hangers shall be spaced not more than 1200 mm longrunner channels shall be not more than 150 mm from the wall. Hanger wiresshall be looped around the bottom or structural member to the center of thestructural member.

1.01.2 Main Runner Channels

Main runner channels shall be spaced in accordance with the provision givenin ASTM C-841 for spans and spacing of cross furring channels except that

main runner channels shall not be spaced more than 1050 mm on center.Hanger wire shall be saddle-tied to the runner channels, and end of hanger shall be twisted three times around itself.

1.01.3 Furring Channels

Furring channels shall be spaced in accordance with the provisions given in ASTM C-841 for lath used. Furring channels shall be secure saddled tied tothe runner channels and to structural supports and each crossing with thewire, hairpin clips, or equivalent clips or fastening. Furring channels shall belocated within 50.80 mm of parallel walls and beams and shall be cut short of abutting walls of 12.70 mm plus or minus 6.35 mm.

1.02 Lathing

3.02.1 Application of Metal Lath

Metal lath shall be applied with long dimension across the supports with trueeven surfaces, and without sags or buckles, lath on restrained ceilings shallbe turn down at junction with wall, or shall be applied to cornerite or corner bead. Metal lath on vertical surfaces shall be oriented to provide maximummechanical bond with plaster and the lower sheet shall be attached to overlapthe upper sheet. When paper back lath is used, the upper sheet shall beattached to overlap the lower sheet. The lath shall be secured to supports atintervals not exceeding 150 mm. Nails or staples shall be used for securinglath to wood supports. Tie wires, rings, clips, or other approved fastenershaving equivalent holding power of the tie wires shall be used for securing theplaster base to metal supports and to concrete or masonry. Side laps or

junction of sides of plaster base shall, in addition to being secured tosupports, be tied or otherwise secured at intervals not exceeding 9 or 228.60mm between supports.

1.02.2 Attachments

Attachments for metal shall be in accordance with ASTM C-841.

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The cornerites shall be secured to abutting lathed surfaces. Where plaster isapplied direct to concrete or masonry surfaces, the cornerite shall be securedto the concrete or masonry.

3.04.2 Casing Beads

Casing beads shall be installed at the joints of dissimilar base materials in thesame plane and at exposed edges of plaster including junctions of walls andceiling except that beads shall not be installed at restrained ceilings abuttingplastered surfaces.

3.04.3 Expansion and Control Joint Beads

Expansion joint beads shall be installed as control joints in plaster work at thelocation indicated. Plaster base shall not be run continuous through control

joints. Additional supports shall be installed as required to support the beads.

3.04.4 Metal Trim

Metal trim shall be installed in accordance with approved trade practice.

1.05 Plaster Thickness and Surface Evenness

Plaster thickness and surface evenness shall be controlled grounds or screed of metal, wood, plaster. Wood grounds are specified under Section 06000 RoughCarpentry. Plaster shall be finished to a true and even surface well within limitsestablished by best trade practice. Plaster thickness from the face of the plaster baseto the finished plaster surface shall be as shown in ASTM C-842.

1.05.1 Metal Grounds and Screeds

Metal grounds shall be furnished as required for securing trim items andproviding finished corners and terminations. Metal screeds shall be installedfor base screeds when wood or metal grounds are not required. Temporaryscreeds shall be installed when permanent screeds or grounds cannot beused. On completion of approved base coats, temporary screeds shall beremoved and resultant voids immediately filled with plaster.

1.05.2 Plaster Screeds

Plaster screeds shall be used within the plastered areas to supplementalwood and metal grounds and screeds.

1.06 Machine Application

A plastering machine may be used for the application of scratch and brown coats.

Plaster for machine application shall be a special plaster compounded and packagedby the manufacturer for this purpose. Slump cone equipment shall be present on the

jobsite when base coat plastering begins and at all times until it is completed. Testingof the mix shall be the responsibility of the contractor but equipment shall be

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available for use by the client. Under no circumstances water shall be added to themix to allow pumping through extended hose lines to the plaster nozzle. The amountof water added to each batch of plaster shall be the quantity which results in a plaster

slump not more than 63.50 mm for Portland cement or approved equivalent using astandard plaster slump cone or 127.00 mm for Portland cement using a concreteslump cone.

1.06.1 Application

Application of plaster shall conform to the provisions of ASTM C-842 for plaster applied and finished by hand.

1.06.2 Control

Fluidity or stiffness of plaster shall be tested with a standard of 50.80 x 101.80x 152.90 mm (2 x 4 x 6) plaster slump testing cone or by 101.80 x 203.20 x

304.80 mm (4 x 8 x 12) concrete slump testing cone.

1.06.3 Method of Making a Slump Test shall be as follows:

a) Place cone on center of dry base plate located on a level, firm surface.Hold cone tightly against plate.

b) Fill the cone with plaster obtained from the hose or nozzle, without air on the nozzle, puddling with tamping rod during the operation toeliminate air bubbles or voids.

c) Screed plaster level with top of cone.

d) Lift cone straight up from base plate in a slow and uniform motion andplace it on the base next to plaster sample.

e) Lay straight edge across top of cone, being careful not to disturb or jostle the plate, and measures the slump in inches from the bottom of the straight edge on the top of the plaster sample.

1.07 Proportions and Mixing

1.07.1 Base Coat

Base coat shall be proportioned and mixed in accordance with ASTM C-926.

1.07.2 Portland Cement Plaster Finish

Portland cement plaster finish shall be mixed using one (1) art Portlandcement, four (4) parts sand and of part of lime putty. Lime putty shall bereduced to 1/5 part where Portland Pozzolan cement is used.

1.08 Application of Finishes

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The finish coat shall be applied in accordance with ASTM C-842. The finish coat shallbe applied in accordance with the best trade practice for the type of base plaster. Thefinish coat shall be omitted back of fixed equipment and other locations where

indicated.

3.08.1 Portland Cement Plaster Finish Coat

Portland cement plaster finish coat shall be applied after the brown coat hasset and hardened, and not less than 6-days after application of the browncoat. The finish coat shall be floated to a true and even surface, leavingsurface free from rough areas, checks or other blemishes. The finish coatshall be applied in accordance with ASTM C-926.

1.09 Patching

Plaster showing over-sanding, cracks, blisters, pits, checks or discoloration will not

be acceptable. Such plaster shall be removed and replaced with new plaster at theexpense of the Contractor. Patching of the defective work will be permitted onlyapproved by the contractual officer, and such patching shall match the existing workin texture and color.

1.10 Samples of Completed Work

Samples of completed work maybe taken by the contractor officer at anytime for laboratory inspection and test to determine conformance.

- END OF SECTION -

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DIVISION 11

FINISHES

SECTION 11500 TERRAZO TILES

SUBSECTION: INDEX

P ART 1 GENERAL

1.01 Applicable Publications1.02 Submittals1.03 Delivery, Storage and Handling1.04 Environmental Conditions

P ART 2 P RODUCT

1.01 Materials1.02 Fabrications

P ART 3 EXECUTION

1.01 Installation1.02 Tolerances1.03 Cutting and Fitting1.04 Cleaning and Protection

Part 1 - General

1.01 Applicable Publications

The publications listed below form a part of this specification to the extendreferenced. The publications are referred to the text by basic designation only.

1. Federal Specifications

a) SS-A-281B and Am-1 : Aggregate; for Portland Cement-Concrete.

2. American Society for Testing and Materials (ASTM) Publication:

a) C-144-87 : Aggregate for Masonry Mortar

b) C-150-86 : Portland Cement

c) C-270-89 : Mortar for Unit Masonry

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1.02 Submittals

1.02.1 Shop Drawings

Shop drawings shall be submitted in accordance with the special clauses.Shop drawings shall show layout, dimensions and jointing methods.

1.02.2 Samples

Submit two (2) samples; samples shall be of sufficient size to show qualityand texture, markings and surface finish.

1.03 Delivery, Storage and Handling

Materials shall be delivered to the project site in the manufacturers originalunopened containers with seals unbroken and labels and hallmarks intact. Materialsshall be kept dry, protected from weather and stored under cover.

1.04 Environmental Conditions

Maintain materials and surrounding air to a minimum of 40 oF prior to during and after 48 hours completion of work.

Part 2 Products

2.01 Materials

2.01.1 Terrazo Tiles

Terrazo tiles shall conform to ASTM C 503. Color and pattern shall be chosenby the owner/consultant representatives. Terrazo floor tiles shall be 20 mmthk. and size as indicated in the drawings.

2.01.2 Setting Bed

2.01.2.1 Aggregate for concrete fill: Aggregate shall conform to FederalSpecs. SS-A-281. Maximum size coarse aggregate shall notbe greater than one-half the thickness of concrete fill.

2.01.2.2 Sand : Sand shall conform to ASTM C 144.

2.01.3 Mortar

Mortar shall conform to ASTM C 270, Type I, Portland Cement.

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2.01.4 Cleaning Solution

Type which will not harm stone, joint materials or adjacent surfaces. Consultmanufacturer for recommended type.

2.02 Fabrication

Form external corners to quick joint profile.

Part 3 Execution

1.01 Installation

Install terrazo floor tiles in accordance with the manufacturers instruction and

erection drawings. Rake out joints to accommodate cement mortar and backstop.Brush mortar joint clean.

1.02 Tolerances

Tolerances of installing terrazo floor tiles shall conform on the shop drawings layoutsubmitted by the contractor.

1.03 Cutting and Fitting

Obtain approval before cutting or fitting any item not so indicated on the drawings. Donot impair the appearance of strength of the terrazo floor tiles by cutting.

1.04 Cleaning and Protection

Remove excess mortar and sealant upon completion of work. Clean soiled surfaceswith cleaning solution. Use non-metallic tools in cleaning operations.

Provide protective continuous materials for the installed terrazo floor tiles to avoidscratches and damages.

- END OF SECTION -

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DIVISION 11

SECTION 11600

FLOOR TREAMENT AND SURFACING

A. Plac ing of Base Concrete

The base concrete should have a minimum cement content of 320 Kg/M 3. Free water to cement ratio of 0.50 (Max) and 0.40 (Min) is required and the ideal slump of 75mm to 100 mm is required to minimize segregation and bleeding of concrete.

The base concrete should be levelled and vibrated. The surface shall be floated witha wooden float ensuring that it is closed. Any bleed water shall be removed.

MASTERTOP 300 is ideally applied to the surface which is not too wet nor too dry.

B. Surfacing by MASTERTOP 300

B.1 Description

MASTERTOP 300 is a ready to use blend of a synthetic mineral aggregatesand cement which is applied as a dryshakes to the surface of fresh concreteslabs.

MASTERTOP 300 is consist of non-metallic, inert high quality syntheticmineral aggregates, proprietary chemical, pigments and cement.

B.2 Advantages

1. Wear, abrasion and impact resistance are superior.

2. Applied monolithically to fresh concrete and will form an integral partof the floor surface and will not delaminate or peel.

3. Available in a range of colors (Light grey, dark grey, red, ivory).

4. Easy and economical to apply.

5. Non-oxidizing, and slip resistant finish can be obtained.

6. Curing work can be done by application of Masterkure 121 or either covering by polythylene sheets.

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B.3 Application of Mastertop 300

Using a raised trestle which spans the slabs, the Mastertop 300 is broadcastby hand on to the wet concrete surface. The application is carried out in 2stages.

1. The first application is made using 2 / 3 of the required material to theconcrete surface ensuring uniform distribution. When the materialsbecome uniformly dark by the absorption moisture from the concretesurface, the first application can be floated, ensuring materialsbecomes integral part of the surface.

2. The remaining materials is thrown evely on the surface. Again, waituntil materials had obtained a darker color before floating with a

wooded float.

If the surface is sufficiently firm enough to take the weight of the foottraffic, Mastertop 300 should be finished off by means of a power float.

B.4 Coverage

The coverage of the materials depend on the use of the flooring. Applicationrate should comply with the coverage as recommended.

Light and medium duty - 5 to 6 Kg / M 2 Heavy duty - 7 to 9 Kg / M 2 Joints (Expansion) - 1.5 Kg/ Lenear meter in 8 cm strips

B.5 Packing

MASTERTOP 300 is supplied in a sealed 25 Kg bag.

B.6 Precaution (During Application)

1. Dry shake application should not take place in direct sunlight or whenhot winds are blowing. This will avoid "bread crusting" occurring on top5 - 10 mm of surface dries while concrete beneath is still wet. Thisoften result in tearing of the surface when travelling.

2. As any concrete slab or bay, curing is of paramount importance andshould take place immediately upon completion of finishing.

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C. Conclusion

It is advised to strictly conform to the above specification such that a good quality andexcellent industrial floor could be attained.

END OF SECTION

division 11

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