6-68-0033 rev 7.pdf

7/26/2019 6-68-0033 Rev 7.pdf

http://slidepdf.com/reader/full/6-68-0033-rev-7pdf 1/16

Sitiazi

N G I N E E R S

•

12Zfire ..3457 7

IN D IA L IM ITED

A Govt of IntAa UntlettakIngt

41

AJS PKM

C

M

YPC PKM

S C VK ND

RPM

SKP

SCJ

MI

Prepared

by

Checked

by

Standards

Committee

Convenor

GM

Standards

Bureau

Chairman

Rev.

No

ate

urpose

7

3.09.2013

6

5 2.05.2001

TITLE REVISED, UPDATED REISSUED

AS SPECIFICATION

UPDATED REISSUED AS

SPECIFICATION

23.06.2010 REVISED REISSUED AS SPECIFICATION

STANDARD SPECIFICATION

PASSIVE FIREPROOFING

OF STEEL STRUCTURES

(HYDROCARBON POOL FIRE)

STANDARD SPECIFICATION No.

6-68-0033 Rev.7

of 16

1 1 1 c h

tr

T O

4 Wrzi

S T A N D A R D SPE C IFIC A T IO N

C IV IL S T R U C T U R A L W O R K S

- ,

1 1 1

irwr afT9

449

1 1 1 c : r ) 1 6 1 1 - 1 T O T r u f f a T 1 7 9 )

PA S SIV E FIR E PR O O FIN G

O F S T E E L ST R U C T U R E S

(H Y D R O C A R BO N P O O L F IR E )

Approved by

Format No. 8-00-0001-F1 Rev. 0

opyright EIL — A ll rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


lei

N G I N E E R S

Igar afgrdg

N D I A L I M I T E D

,12 ,171,,F11

A

Govt of Indy UncleFakogi

STANDA RD S PECIFICATION


OF STEEL STRUCTURES


S T A N D A R D S P E C I FI CA T I O N N o .

6-68-0033 Rev.7

of 16

Abbreviations:

AS

ustralian Standard

ASTM :

merican Society for Testing & Materials

BS

ritish Standard

DFT

ry Film Thickness

IS

ndian Standards

OISD :

il Industry Safety Directorate

UL

nderwriters' Laboratory

QAP uality Assurance Plan

Structural Standards Committee

Convenor :

r. P.K. Mittal

Members :

Mr. S.Debnath (Geotech)

Mr. P.J. Singh

Mr. Rajanji Srivastava

Mr. Samir Das (Architectural)

Mr. V.S. Chhaya (Projects)

Mr . Ravindra Kumar (Construction)

Special Invitees:

Mr. P.P. Lahiri (SMMS)

Mr. Prasenjit Saha (SMMS)

Format N o. 8-00-0001-F1 Rev. 0

opyright EIL — A ll rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


ENGINEERS

I N D I A L I M I T E D

(A Govt of India Undeftalong)



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

CONTENTS

1.0 SCOPE

.4

2.0

REFERENCES

4

3.0

DESIGN BASIS

4

4.0 FIREPROOFING SYSTEM AND MATERIALS

5

5.0

SURFACE PREPARATION

7

6.0

SPECIFIC REQUIREMENTS FOR FIRE PROOFING

8

7.0

APPLICATION METHOD

9

8.0 SCAFFOLDING & FORM WORK

10

9.0 FINISHING AND JOINT SEALING

10

10.0 TESTING REQUIREMENTS

10

11.0 PAYMENT

11

ANNEXURES

12-15

ATTACHMENT

..16

Copyright EIL — All rights reserved


7/26/2019 6-68-0033 Rev 7.pdf


k 3

1

N G I N E E R S

fgT x

id5teg

NDIA LIMITED

14iRR

A Go vi of India Undeitaking)



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

1.0 SCOPE

This specification covers the general requirements of passive fire protection of external steel

structures against hydrocarbon pool fire. Structural steel members shall be fire proofed for 2

hours such that the protected steel substrate temperature shall be restricted to 538

°

C, whereas in

case of equipment skirts/ saddles/ supports the steel temperature shall be restricted to 427

°C.

Following fireproofing materials and systems have been covered in this standard:

a)

Type-I : In-situ cement concrete of minimum M30 Grade (for application up to 1.8m

from grade level for steel structures)

b)

Type-II: Spray applied vermiculite based lightweight cementitiuos concrete (for application

above 1.8m of grade level for steel structures)

c)

Type-Ill: Spray applied vermiculite based lightweight cementitiuos concrete (for application

over equipment skirts/ saddles/ supports)

2.0 REFERENCES

• UL 1709: Rapid Rise Fire Tests of Protection of Structural Steel

•

OISD-STD-164 : Fireproofing of Steel Supporting Structures in Oil & Gas Industry

• NORSOK Standard M-501

•

Relevant ASTM Standards like ASTM C177, ASTM D790, ASTM D2240, ASTM E605,

ASTM E736, ASTM E760, ASTM E761, ASTM E84, ASTM E859, ASTM E937, ASTM

G21, etc.

•

Relevant BIS Standards like IS:383, IS:412, IS:455, 1S:456, IS:1367, IS:1489 (Part-I),

IS:1566, IS:2062. 1S:2585, IS:8112, IS:9103, IS:12269, IS:12330, etc.

• Relevant British Standards like BS-8110, etc.

• EIL Specification for Plain and Reinforced Cement Concrete No. : 6-68-0004

• EIL Specification for Self Compacting Concrete No. : 6-68-0019

3.0

DESIGN BASIS

Fire resistance of a material is defined by fire rating, evaluated through a fire test based on

applied thickness and time taken to reach the defined critical steel temperature. Fire rating

adopted in the present standard is based on UL-1709 rapid rise fire tests of protection materials

for structural steel, conducted by Underwriters Laboratory, USA. In this test, fire resistance of a

material is evaluated on a W10x49 steel column as per UL-1709 fire curve and fire rating is

published in a UL design number under XR category for thickness and time. In addition to the

fire rating, under this test, material for exterior use is also evaluated for accelerated ageing, high

humidity, salt spray, wet-freeze-dry cycling, acid spray, solvent spray etc.

3.1 Fireproofing Thickness

Thickness of fireproof coating to be applied shall be based on the following:

a) Type-I : In-situ cement concrete for application up to 1.8m from grade level for steel

structures shall be applied with minimum 65mm thickness.

b)

Type-II : Structural steel members such as column, beam etc. which shall be protected for 2

hours from reaching critical temperature 538

°

C, shall be applied with vermiculite

based lightweight cementitious fireproof of thickness corresponding to 2 hours

fire rating as per respective UL design number under UL-1709 (XR category)

subject to a minimum of 30mm.


opyright EIL — All rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


i t4

N G I N E E R S

051-eg N D IA L IM ITED

IA Gov( of India Undertaking



OF STEEL STRUCTURES

HYDROCARBON POOL FIRE)


6-68-0033 Rev.7

of 16

c) Type-III : For equipment skirts/ saddles/ supports (which shall be protected for 2 hours from

reaching critical temperature 427

°C), 2 hours fire rating as per UL design is not

adequate as the UL-1709 test is based on 538°C critical temperature. Therefore for

the required fire protection from reaching 427°

C, higher thickness shall be

necessary. For this, fireproof thickness corresponding to 3 hours fire rating as per

respective UL design number under UL-1709 (XR category) shall be adopted

subject to a minimum of 30mm.

4.0

FIREPROOFING SYSTEM AND MATERIALS

All materials to be used shall conform to the requirements of UL-1709/ respective BIS codes/

respective acceptance criteria (as applicable). Materials shall meet the minimum acceptance

criteria given under this section. Samples, test results and approval certificates for all materials

shall be submitted and got approved from the Engineer-in-Charge before execution of work.

a) Vermiculite based lightweight cementitiuos fireproofing system shall have following

compatible components:

• Primer

• Reinforcing system

•

Fireproof coating as per UL-1709

•

Curing

• Water shed sealing at terminating edges/ metal joints

• Weather barrier finish coat

b) In-situ cement concrete fireproofing system shall have following compatible components:

• Primer

• Reinforcing system

•

Cement concrete

• Curing

• Water shed sealing at terminating edges/ metal joints

• Weather barrier finish coat

4.1

Vermiculite Based Lightweight Cementitious Fireproofing Material

Vermiculite based lightweight cementitious fireproof material shall be UL certified for UL-1709

(Rapid rise fire test of protection materials for structural steels), UL classified under XR

category and covered under UL follow up service (indicated by UL mark/ sticker on the

packing). For list of UL certified materials. UL website (www.ul.com) shall be referred. The

essential criteria for the material shall be:

a) Must be UL-1709 certified having UL design number under XR category

b) Listed on UL website under specified category

c) Bear UL-1709 mark/ sticker on packing bags/ container

The material shall be factory-blended, supplied in single component pre-mixed dry form, non-

flaking and non-dusting suitable for spray-application, with added mold and fungi inhibitor.

Material shall not contain asbestos & mineral wool and shall not contain more than 1 Sulphate

(expressed in SO

3

). The material shall be free from toxicity release when subjected to heat.

In addition to the UL-1709 certificate, the contractor shall supply test certificate covering the

information for the supplied batches of material as per Attachment-I.

Fire proofing materials shall be stored in well ventilated, dry place away from source of heat &

direct sunlight. Special storage requirements such as temperature, humidity, stacking height, etc.

as per manufacturer's specifications shall be ensured.



7/26/2019 6-68-0033 Rev 7.pdf


E N G I N E E R S

05f

- 'g

I N D I A L IM I T E D

1 7 1 1

.M cvemre as1J9gui,

A Govt of Indo Untletlaking)



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

4.2 Reinforcement (for both Vermiculite based cementitious and In-situ concrete)

4.2.1 Expanded Metal Steel Sheet/ Lath

Expanded metal steel sheet shall conform to IS:412, galvanized (having minimum zinc coating

of 250 g/m2

) and shall weigh minimum 1.84 Kg/m2

. Size of the mesh shall be 4.5x13.5mm.

4.2.2 Wire Fabric

Welded wire fabric to be used as reinforcement, shall conform to IS:1566 and shall be post weld

hot dipped galvanized having minimum zinc coating of 250 g/in' of uncoated wire surface.

Mesh size shall be 50mmx5Omm and thickness of wire shall be 2mm (Minimum).

4.2.3 Attachments

a)

Mild Steel Tie Wire

MS Tie wires shall be minimum 16 SWG and galvanized (having minimum zinc coating of

100 g/m2 ).

b)

Mild Steel Nuts

MS Nuts shall conform to IS:1367 and IS:2585.

c)

Cover plates

Cover plates shall conform to IS:2062 Grade-A/ BR.

d) Cover blocks

Cover blocks shall be prepared in cement coarse sand mortar (1:3) with minimum

50mmx50mm size of thickness equal to half of the fireproofing thickness with MS Tie wire

of sufficient length protruding from them for tying with the wire fabric.

4.3 Curing Compounds (for both Vermiculite based cementitious and In-situ concrete)

Membrane curing may be used in lieu of moist curing with the permission of the

Engineer-in-Charge. Such compounds shall be compatible and applied to all exposed surfaces by

spraying or brushing as soon as possible after the material has set. Minimum film thickness of

such curing compounds shall be as per the recommendation of the manufacturer so as to obtain

an efficiency of 90 as specified by BS-8110. This film of curing compound shall be fully

removed from the surface after the specified curing period.

4.4 Water Shed Sealing at Terminating Edges/ Metal Joints (for both Vermiculite based

cementitious and In-situ concrete)

All termination of the fireproofing and steel junctions shall be sealed by non-bituminous

polysulfide or silicon rubber mastic sealant. The sealing compound shall be compatible and

approved by fireproofing material supplier.

4.5 Weather Barrier Finish Coat (for both Vermiculite based cementitious and In-situ

concrete)

a) Sealer Coat

A sealer coat of epoxy polyamide shall be applied over the fireproofing surface as a base for

the finish coat. The sealing compound shall be compatible and approved by fireproofing

material supplier.



7/26/2019 6-68-0033 Rev 7.pdf


l N G I N E E R S

5fgaf fa5teg


(H10 2)

A)a)r,

1.3nliwii

A Gov) Al India Undertaking)



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

b) Finish Coat

The finish coat shall be pre-qualified for coating system No. 1 of NORSOK Standard

M-501. Two coats of acrylic elastomeric or polyurethane coating shall be used as finish

coat. The sealing compound shall be compatible and approved by fireproofing material

supplier.

4 6 Water

Water shall conform to the requirements of IS:456.

4.7 Materials for In-situ Concrete

4.7.1

Cement

Type of cement to be used shall be as per EIL Specification No. 6-68-0004.

Fireproofing of all structures in Sulphur handling units shall necessarily be by using Sulphate

resisting Portland cement conforming to IS:12330.

4.7.2 Aggregates

a)

Fine aggregates (Sand)

Fine aggregates shall conform to the requirements specified in EIL Specification No.

6-68-0004. Sand conforming to Zone IV shall not be used.

b)

Coarse aggregates

Coarse aggregates shall conform to the requirements specified in EIL Specification No.

6-68-0004. Maximum size of aggregates shall be lOmm.

4.7.3 Admixture

Admixture shall conform to IS:9103. The admixture shall be mixed with concrete strictly as per

manufacturer's recommendation and shall also meet the requirements of IS:456.

5.0 SURFACE PREPARATION

Before starting the work, the contractor shall furnish the information about fireproofing material

as detailed in Attachment-I.

5.1 Surface Cleaning

All steel surfaces to be in contact with the fire proofing coating material, shall be cleaned of all

oil, grease, loose rust, scales and dust by using wire brushing and washing using detergents.

5.2 Mesh Support System

5.2.1 Welding of Nuts and Application of Primer

MS Nuts of M10 dia bolts shall be welded only to the equipment skirts/legs, angles and box

sections to be fire proofed. Maximum spacing of nuts shall be 300mm centre to centre in

staggered fashion. Nuts shall not be welded to the equipment skirts (to be welded by equipment

fabricator); unless directed by Engineer-in-Charge. Primer paint shall be applied to the MS nuts

and affected surfaces of the members due to welding after proper cleaning. Primer paint shall be

compatible with the primer already applied to the steel members.


opyright EIL - All rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


E N G I N E E R S


IA Govt of India Undertaking)



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

t a f 5 1 1-

dg

451 3,1

1

5.2.2 Placement of Cover Blocks

Cover blocks shall be tied with the wire fabric at 300mm centre to centre along the span and at

suitable locations along the periphery' of the member. The whole arrangement shall be placed

over the Metal sheet/ lath and shall be held in position with the help of MS Tie wires wrapped at

cover block locations. Cover blocks shall not be used over equipment skirts/legs, angles and box

sections.

5.3 Fixing of

Expanded Metal

Steel Sheet/ Lath

Metal sheet shall be kept in position true to line and face, and shall be attached firmly to

structural steel member by tack welding or with the help of clips and MS Tie wire at 300mm

centre to centre. Minimum lap of 75mm shall be provided wherever required, however laps

shall be avoided at bends. Metal sheet shall be supported with 3mm thick stiffener at the centre

in case depth of steel section exceeds 600mm. These stiffeners shall be placed at 600mm c/c

(maximum). Strands of the expanded metal steel sheet shall slope inwards & downwards.

5.4 Placement of Wire Fabric

Wire fabric shall be placed in the middle of coated material thickness. It shall be bent

confirming with outlines of finished encasement and rigidly secured in place by tie wire with all

the nuts or the cover blocks as the case may be. Minimum lap at ends and sides shall be 100mm

and lapped wire fabric shall be tied firmly.

6.0 SPECIFIC REQUIREMENTS FOR FIRE

PROOFING

6.1 Vermiculite Based Cementitious Material

6.1.1 Vermiculite based cementitious coating material shall meet the design requirements as specified

under clause 3.0 & 4.0.

6.1.2

The coating shall be non corrosive to the steel members & shall not be affected by

environmental conditions, whether natural or from local leaks, spillage or pollution. It shall also

be asbestos free.

6.1.3

The coating shall be able to withstand both thermal shock and impingement of water from fire

hoses and/or monitors.

6.1.4

The coating material shall be durable and easily repairable.

6.1.5

Application procedure of the coating shall be easy, non hazardous and also shall not interfere

with the working of the adjoining areas.

6.2 In situ Concrete

6.2.1

Concrete mixing and placing shall be done as per EIL specification No. 6-68-0004.

6.2.2 Steel structures shall be fire proofed with concrete up to a minimum height of 1.8m from grade

for protection against mechanical damage or as directed by the Engineer-in-Charge. A suitable

slope of about 30°

shall be provided at the junction of concrete and vermiculite based

cementitious fireproofing material to avoid accumulation of water.

6.2.3

Concrete shall be poured into well made forms properly oiled and made to correct dimensions.

Concrete shall be vibrated as necessary to ensure smooth surface, free from voids and

irregularities. Any defects, honeycomb etc. shall be made good by contractor at his own cost.

Copyright EIL—All rights reserved


7/26/2019 6-68-0033 Rev 7.pdf


faeley

N G I N E E R S

Ogzir


41k-71 two.,MI OTC,

A Govt

Al

India Undertaking]



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

6.2.4 Self Compacting Concrete (SCC) conforming to EIL Specification No. 6-68-0019 can also be

used which do not require vibrators.

7.0 APPLICATION METHOD

a)

Application of fire proofing material coating shall be carried out by skilled and experienced

applicators.

b)

Before start of application, pipes and equipments in the vicinity shall be covered with

polythene/ tarpaulin to protect them against damage. Open end of pipes shall be covered

with wooden plugs or with other suitable shielding materials.

c)

Steel sections shall be covered with metal steel sheet/ lath before application of fire proofing

material. For equipment skirts/ saddles/ supports, the coating material shall be applied in

horizontal bands working upwards from the bottom of skirts/ saddles/ supports base plate.

All outside edges of the fire proofing shall be champhered by 20mm (Refer relevant

Annexures).

d)

Thickness of fire proof coating shall be established by providing ground wires both in

vertical and horizontal directions. Ground wires shall be tight and true to line, and placed in

such a manner that they can be further tightened if required.

e)

The fire proofing material, after application, shall be cured by keeping it in moist condition

for atleast 7 days (or as per vendor requirement) or else the surface shall be coated with a

membrane of approved curing compound. Brand name, name of manufacturer, test results

and method of application shall be submitted to and got approved from the Engineer-in-

Charge prior to procurement of curing compound.

7.1 Specific Requirement for Vermiculite Based Cementitious Material

7.1.1 The contractor responsible for fireproofing application shall be certified by the fireproofing

material vendor. Further, the application crew shall be pre-qualified through a mock application

to establish their skill to meet desired quality parameters. Application tools and machineries

shall also be approved by the fireproofing material vendor. The mock-up shall be demonstrated

on a test surface resembling the actual application conditions to ascertain skill of the applicator.

Installation surface shall be inspected within one hour of application for any shrinkage/ gaps/

cracks. Incase defects observed, the mixture and the method of application shall be adjusted for

successful mock-up.

Parameters maintained in successful mock-up i.e. mixing time, application methods etc. shall be

followed during actual application.

7.1.2 Vermiculite based cementitious material shall be mixed with water on a clean platform or in a

clean mixing box or in a suitable mixer as per manufacturer's specification. Water cement ratio

shall be adjusted so that vermiculite based cementitious coating adheres properly to steel surface

and does not sag or slide upon application.

7.1.3 Primer compatible with the vermiculite based cementitious coating shall be applied over the

steel surface after cleaning the shop primer if required as per the manufacturer's specification. If

primer as per manufacturer specification is not available then inorganic/ organic zinc rich primer

shall be used and applied with minimum two coats @ 65-90 micron DFT per coat.

7.1.4 Mixed vermiculite based cementitious coating shall generally be applied, over the steel surface,

with the help of spray gun except for small areas and inaccessible location, where application

with conventional hand tools shall be permitted. Mixed vermiculite based cementitious coating

shall be used within the pot life specified by the manufacturer. Under no circumstance rebound

material shall be used.


opyright EIL—All rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


e - 1

ENGINEERS

5igal 25teg

NDIA LIMITED

1 4 O 7 7 1 oienfre

A Covl of India Lindeflaking)

S T A N D A R D S P E C IF I C A T I O N

P A S S IV E F I R EP R O O F I N G

OF STEEL STRUCTURES

(H Y D R O C A R B O N P O O L F I R E)


6-68-0033 Rev.7

of 16

7.1.5 Parameters like water quality, water addition, wet density check at mixer discharge and spray

head, slump test and other operating parameters like air pressure etc. shall be checked during

application to ensure achievement of specified quality parameters.

7.1.6 Minimum thickness of fire proofing coating as specified under clause 3.1 shall be maintained.

7.1.7 Application of mixed vermiculite based cementitious coating shall not be carried out if the air

temperature or the temperature of the surface to be fire proofed is 4°C or less. Provision shall be

made for adequate ventilation during and after application, until the coating is dry.

7.1.8 All patching of damaged fireproofing work shall be done by the contractor certified by the

fireproofing material vendor.

8.0 SCAFFOLDING & FORM WORK

8.1 The Contractor shall arrange all approaches, scaffolding, stair ways, ladder, working platform

etc, for carrying out the entire works safely. The working area shall be neatly maintained and all

the facilities required by Engineer-in-Charge for proper supervision of the work shall be

provided. In case, any special precaution is needed for the safety of the structure till the

completion of application, the Contractor shall make and provide all such arrangement to the

complete satisfaction of the Engineer-in-Charge and shall remove the same after completion of

works.

8.2 Form work shall be adequately supported and braced to protect against deformation on account

of vibration during the application. Forms shall be oiled, dampened and cleaned before use. All

other requirements pertaining to the form work shall be as per EIL specification No. 6-68-0004.

9.0 FINISHING AND JOINT SEALING

9.1 Weather Barrier Finish Coat

In-situ concrete/ Vermiculite based cementitious fireproof coating shall be protected from

weather damage by means of suitable coating. The weather barrier coat shall be applied after full

curing (after a gap of min 28 days) and drying of the fire proofing coating. A sealer coat of

epoxy polyamide @ 50-7511 DFT shall be applied over the fireproofing surface as a base for the

finish coat. The finish coat shall be UV resistant, suitable to withstand mechanical abrasion/ air

erosion, shall be pre-qualified for coating system No.1 of NORSOK Standard M-501. Two coats

of acrylic elastomeric or polyurethane coating shall be used as finish coat @ 100-125 µ DFT per

coat. Number of coats shall be increased in case desired DFT not achieved. The coating system

for finish coat shall be compatible and approved by fireproofing material vendor.

9.2 Water Shed Sealing at Terminating Edges/ Metal Joints

All termination of vermiculite based cementitious fireproofing and steel junctions shall be

sloped to shed water and sealed by non-bituminous polysulfide or silicon rubber mastic sealant

to prevent water ingress into the fireproofing from these joints. The sealing shall be applied by

cutting a U shaped groove approx 10mm deep and 10mm wide in to the fireproofing

immediately adjacent to the junction. The sealing compound shall be approved by fireproofing

material vendor.

10.0 TESTING REQUIREMENTS

10.1 For Vermiculite Based Cementitious Fireproof Coating

Test samples shall be taken during application of coating, which shall be tested for bulk density

and compressive strength as per applicable standards. Hardness of the finish surface after curing

shall be measured by Shore D Durometer.

Test results shall comply with the requirements as mentioned in Attachment-I.


opyright EIL —

All rights reserved

7/26/2019 6-68-0033 Rev 7.pdf


ENGINEERS

Ogzir fai4f

g I N D I A L I M I T E D

1.100, e7ea40Cif J40

1

A Gov( of

/flth..1 Uncieltakingi



OF STEEL STRUCTURES



6-68-0033 Rev.7

of 16

10.2 For In-situ

Concrete

Testing of specimens and their Acceptance criteria shall be as per EIL specification No.

6-68-0004.

11.0 PAYMENT

11.1 Payment shall be made on square metre (m

2

) basis measured at the periphery of the actual

finished work or as calculated from construction drawing whichever is less.

11.2 The rate quoted shall be inclusive of all labour, material, formwork, plant & tools etc. required

for the successful and satisfactory completion of work including curing, curing compound,

admixtures, all cleaning operations before and after the work, preparation of the surface as

specified, primer paint to MS nuts and affected surfaces of members due to welding and

applying the primer coat if recommend by the manufacturer compatible with the primer already

applied, finishing the surface smooth, painting the surface with sealer coat and weather barrier

finish coats & sealing the joints with sealing compounds, providing required access, working

platforms, props, scaffolding and other safety measures including their removal after

completion.

11.3 The rate shall also be inclusive of supplying and welding of nuts, wherever required on

Structural Steel and equipment skirts/ saddles/ legs/ supports and fixing of reinforcement with

nuts/ cover blocks by using tying wire, wrapping of tying wire around metal sheet for holding

the reinforcement over cover blocks, supplying and fixing of metal sheet/lath, wire fabric, cover

plates, stiffeners, cover blocks and other required accessories for satisfactory completion of the

work as specified and directed.

11.4 The rates quoted shall be inclusive of the tests specified and directed to establish the quality and

strength of materials.



7/26/2019 6-68-0033 Rev 7.pdf


S T A N D A R D S P E C I F I C A T I O N N O

6-68-0033 Rev.7

of 16

ANNEXURE-1

INSULATION

(TYP.)

SUPPORT RING

BY VESSEL FABRICATOR)

WATER SHED SEALING

ALROUND TYP.)

FIRE PROOF COATING

MATERIAL TYP.)

4

TANGENT LINE

M S NUTS WELD+ TO SKIRT


REINFORCEMENT TYP.)

SUPPORT RING


TYPE—B (INSULATED VESSEL)

TANGENT LINE

WATER SHED SEALING

ALROUND TYP.)

M S NUTS WELDED TO SKIRT


REINFORCEMEIIT TYP.)

FIRE PROOF COATING

MATERIAL TYP.)

30'

1

SUPPORT RING

INSULATION

(TYP.)

TANGENT LINE


WATER SHED S EALING

ALROUND TYP.

M S NUTS W EIIDED TO SKIRT


0'

REINFORCEMENT TYP.)

FIRE PROOF COATING

MATERIAL TYP.)

STANDARD SPECIFICATION-

E N G I N E E R S

ASSIVE FIRE PROOFING

1g

-

ii

a 5 1 g

NDIA L IMITED

F STEEL STRUCTURES

(A G ovt of India Undellaking,


TYPE—A (INSULATED VESSEL)

4 4 1

fl

3tRNI)

TYPE—C (UNINSULATED VESSEL)

DETAIL OF FIRE PROOFING FOR SKIRTS OF VESSELS

NOTES:

1. OPENING FOR MANHO LE, VENT PIPES ETC. ARE NOT SHOW N IN THIS DRAW ING.

2.

f — INDICATE THE FIRE PROOFING COATING THICKNESS .

Fnrmat Nn R-nr1-01101-F1

RPV 0

nnhvrinht Fli - All rinhts rpsprvprl

7/26/2019 6-68-0033 Rev 7.pdf


TANGENT

LINE

A

J

INSULATION

b)

LEG SUPPORT LINE

M.S. PLATE

FIRE PROOFING COATING

MATERIAL TYP.

REINFORCEMENT

W A T E R S H E D S E A L I N G

A L R O U N D T Y P )

LEG SUPPORT

M.S. PLATE

REINFORCEMENT

FIRE PROOFING

OATING MATERIAL

TYP.)

—3N

TANGENT

LINE

2N

TANGENT

INSULATION

NSULATION

TOP OF

M.S. PLATE

REINFORCEMENT

LEG SUPPORT

PIP E L E G

NGLE (ISA) LEG.S.JOIST (ISMB) LEG

REINFORCEMENT

FIRE PROOFING

COATING MATERIAL

TYP.)

LEG SUPPORT

COATING MATERIAL

TYP.)

REINFORCEMENT

REINFORCEMENT

COATING MA TERIAL

TYP.)

LEG SUPPORT

TANGENT

L I N E

TANGENT

ANGENT

LINE

INE

FIRE PROOFING

2N

SECTION 3-3

ECTION 2-2

E C T I O N 1 — 1

Format Nn e-on-ooni-F1 RPv

Cnnvrinht Fll - All rinhts rpsprvrl

REINFORCEMENT

TYP.)

VESSEL SHELL

TYP.)

M.S. NUTS

B Y V E S S E L F A B R I C A T O R )

TYP)

FIRE PROOFING COATING

MATERIAL TYP

REINFORCEMENT

TYP.)

z i

I fg211051-

g

tam

e D F

t15139

-

07


E N G I N E E R S

ASSIVE FIRE PROOFING


F STEEL STRUCTURES

(A Govt of India Undertaking)


S T A N D A R D S P E C IF IC A T I O N N o .

6-68-0033 Rev.7

of 16

ANNEXURE-2

R.S.JOIST (ISMB) LEG

ANGLE (ISA) LEG

P IPE L E G

INSULATED VESSEL WITH LEG SUPPORT

UNINSULATED VESSEL WITH LEG SUPPORT

7/26/2019 6-68-0033 Rev 7.pdf


[CHANNELS]I—SECTIONS]

FIRE PROOFING

COATING MATERIAL

REINFORCEMENT

TYP.)

COVER BLOCKS

COVER BLOCKS

EXPANDED METAL

STEEL SHEET

3THK STIFFENER FOR

MEMBER DEPTH >600

0 600c/c

o-

w

I I

FIRE PROOFING

COATING MATERIAL

EXPANDED METAL

STEEL SHEET

REINFORCEMENT

COVER BLOCKS

DOUBLE ANGLE BRACING

HANNEL BOX

NGLE BRACING

Igatrag

c r i r e

-

e f e a m e d s t a r e k r u

E N G I N E E RS

IN D IA L IM I T E D

I A G o o f o f I n d i a U n d e r t a k i n g )


PASSIVE FIRE PROOFING

OF STEEL STRUCTURES


S T A N D A R D S P E C I FI CA T I O N N o .

6-68-0033 Rev.7

of 16

ANNEXURE-3

STAR COLUMN WITH I SECTIONS

FULLY ENCASED STEEL SECTION

Frwmat Nr, Fk-na-nnol-F1 Rpv

norwrinht Fl) - All rinhts rpsprvpri

7/26/2019 6-68-0033 Rev 7.pdf


t

f

t

f

FIRE PROOFING COATING MATERIAL

R E I N F O R C E M E N T

EXPANDED METAL STEEL SHEET

COVER BLOCKS

3THK STIFFENER FOR

MEMBER DEPTH >600

0 600c/c

FIRE PROOFING FOR BUILTUP SECTIONS

COVER BLOCKS

ENGINEERS

1 Elf5le

-w INDIA LIMITED

4-IER erearle 0 5 1 3 9

-

0.1)

A Govt of India Undertaking)



OF STEEL STRUCTURES


of 16

S T A N D A R D S P E C IF IC A T I O N N o .

6-68-0033 Rev.7

ANNEXURE -4

w

1 : 1

6THK COVER PLATE

(TYP.)

FIRE PROOFING

COATING MATERIAL

EXPANDED METAL

STEEL SHEET

3THK STIFFENER FOR

MEMBER DEPTH >600

0 600c/c

WATER SHED

SEALING

(TYP.)

R E I N F O R C E M E N T

(TYP.)

t

f

COVER BLOCKS

COVER BLOCKS

3THK STIFFENER FOR

MEMBER DEPTH >600

0 600c/c

[FOR I—SECTIONS]

FOR CHANNELS]

STEEL SECTION WITH TOP FLANGE EXPOSED

BEAM SECTIONS

f

Fnrmat No PVn

Cnnur nht F ll - All rinhts rpservprl

7/26/2019 6-68-0033 Rev 7.pdf


N G I N E E R S

14-ar 25teg


IA Go11 of India Undertaking)

STANDA RD S PECIFICATION


OF STEEL STRUCTURES


6-68-0033 Rev.7

of 16

ATTACHMENT-I

A)

FIREPROOFING MATERIAL DATA TO BE PROVIDED BY THE CONTRACTOR

TECHNICAL REQUIREMENTS

CONTRACTOR TO

SPECIFY

Primer to be used — brand name, datasheet, application procedure

Finish coat system including sealer coat — brand name, datasheet,

application procedure

Sealing compound details — brand name, datasheet, application

procedure

Method statement for application

QAP for site quality control

B) FIREPROOFING

MATERIAL TEST CERTIFICATE REQUIREMENTS

CHARACTERISTICS

UNIT

CONTRACTOR

TO SPECIFY

LIMITING

VALUES

STANDARDS

Material brand name

-

_

-

UL design number

-

XR

- UL 1709

Manufacturer's certificate of

authorization submitted (in

case application by a

contractor other than

fireproofing material vendor)

-

-

-

Fireproofing material is

covered under UL follow up

service (products having UL

mark/ sticker on packing)

_

_

_

Loose material density

kg/m

3

— 400

Applied dry density

kg/m3

700-800

ASTM E605

Compressive Strength

kg/cm2

25-40 ASTM E761

Flexural strength

kg/cm2

20-25 ASTM D790

Bond Strength

kPa

—500 ASTM E736

Bond Impact

-

Pass ASTM E760

Hardness (Shore-D) 28 days

-

40 min ASTM D2240

Thermal conductivity at 20°C

W/mK

0.19

ASTM C177

Flame spread

-

0 ASTM E84

Smoke development

-

0

ASTM E84

Air erosion

gm/mm2

0 ASTM E859

Corrosion

gm/mm2

0

ASTM E937

Fungal Resistance

Pass ASTM G21

Sulphate content

(S03 )

<1

Date :

(Contractor's signature with seal)

6-68-0033 rev 7.pdf

Documents