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' I ' l u without license from IHS An ACI Standard Specification for Installation of Cementitious Grouting between Foundations and Equipment Bases Reported by ACI Committee 351 American Concrete Institute a c I Always advancing Licensee=SHENZHEN ACADEMY OF STANDARDIZATION 9972181 Not for Resale, 2016/3/11 07:46:11

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Page 1: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

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without license from IHS

An ACI Standard

Specification for Installation of Cementitious Grouting between Foundations and Equipment Bases

Reported by ACI Committee 351

� American Concrete Institute � a c I • Always advancing _,

Licensee=SHENZHEN ACADEMY OF STANDARDIZATION 9972181 Not for Resale, 2016/3/11 07:46:11

Page 2: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

American Concrete Institute Always advancing

First Printing December 2015

ISBN: 978-1-94272-762-0

Specification for Installation of Cementitious Grouting between Foundations and Equipment Bases

Copyright by the American Concrete Institute, Farmington Hills, MI. All rights reserved. This material may not be reproduced or copied, in whole or part, in any printed, mechanical, electronic, film, or other distribution and storage media, without the written consent of ACI.

The technical committees responsible for ACI committee reports and standards strive to avoid ambiguities, omissions, and errors in these documents. In spite of these efforts, the users of ACI documents occasionally find information or requirements that may be subject to more than one interpretation or may be incomplete or incorrect. Users who have suggestions for the improvement of ACI documents are requested to contact ACI via the errata website at http://concrete.org/Publications/ DocumentErrata.aspx. Proper use of this document includes periodically checking for errata for the most up-to-date revisions.

ACI committee documents are intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains. Individuals who use this publication in any way assume all risk and accept total responsibility for the application and use of this information.

All information in this publication is provided "as is" without warranty of any kind, either express or implied, including but not limited to, the implied warranties of merchantability, fitness for a particular purpose or non-infringement.

ACI and its members disclaim liability for damages of any kind, including any special, indirect, incidental, or consequential damages, including without limitation, lost revenues or lost profits, which may result from the use of this publication.

It is the responsibility of the user of this document to establish health and safety practices appropriate to the specific circumstances involved with its use. ACI does not make any representations with regard to health and safety issues and the use of this document. The user must determine the applicability of all regulatory limitations before applying the document and must comply with all applicable laws and regulations, including but not limited to, United States Occupational Safety and Health Administration (OSHA) health and safety standards.

Participation by governmental representatives in the work of the American Concrete Institute and in the development of Institute standards does not constitute governmental endorsement of ACI or the standards that it develops.

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Most ACI standards and committee reports are gathered together in the annually revised ACI Manual of Concrete Practice (MCP).

American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 Phone: +1.248.848.3700 Fax: +1.248.848.3701

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Page 3: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

ACI 351.4M-14

Specification for Installation of Cementitious Grouting between Foundations and Equipment

Bases

An ACI Standard

Reported by ACI Committee 351

Omesh B. Abhat Richard P. Bohan!

William L. Bounds William D. Brant

Michael M. Chehab Shu-Jin Fang

Fred R. Goodwin

David Kerins', Chair

*Chair of Task Force 35l.TG I.

Shraddhakar Harsh Erick N. Larson

Robert R. McGlohn Carl A. Nelson

Richard O'Malley Michael A. Paipall

Ira W. Pearce

1M embers of Task Force 35 I .TG I who prepared this specification.

This specification covers minimum requirements for cementitious grouting between foundations and equipment bases. Included are requirements for materials and placing.

Keywords: cement grout; cementitious grout; equipment grout; founda­tions; grout; hydraulic cement grout; machinery grout.

CONTENTS

(mandatory portion follows)

PART 1-GENERAL, p. 1

1.1-Scope, p. 1 1.2-Interpretation, p. 2 1.3-Definitions, p. 2 1.4-Referenced standards, p. 2 1.5-Submittals, p. 2 1.6-Delivery, storage, and handling, p. 2 1.7-Quality control procedures, p. 2 1.8-Acceptance of work, p. 3

PART 2-PRODUCTS, p. 4

2.1-Grouts, p. 4 2.2-Joint and sealant material, p. 4 2.3-Formwork, p. 4 2.4-Water, p. 4

PART 3-EXECUTION, p. 4

3.1-Preparation, p. 4 3.2-Installation, p. 5

American Concrete Institute Provided by IHS under license with ACI No reproduction or networking permitted without license from IHS

Mukti L. Das, Secretary

Charlie L. Rowan William E. Rushing Jr.

Yasser Salem Larry W. Schulze Philip A. Smith!

Widianto F. Alan Wiley

3.3-Testing and inspection, p. 6 3.4-Repair, p. 6 3.5-Cleaning, p. 6 (nonmandatory portion follows)

NOTES TO SPECIFIERS, p. 6

General notes, p. 6 Foreword to checklists, p. 6

Sheng-Chi Wu

Consulting Members Navin N. Pandya

Shamsher Prakash Robert L. Rowan Jr.

MAN DATORY REQUIREMENTS CHECKLIST, p. 7

OPTIONAL REQUIREMENTS CHECKLIST, p. 7 (mandatory portion follows)

PART 1-GENERAL

1.1-Scope 1.1.1 This specification covers minimum requirements for

cementitious grouting between foundations and equipment and machinery bases.

ACI351.4M-14 was adopted December I, 2015, and was published December 2015.

Copyright © 2015, American Concrete Institute.

All rights reserved including rights of reproduction and use in any form or by any

means, including the making of copies by any photo process, or by electronic or

mechanical device, printed, written, or oral, or recording for sound or visual reproduc­

tion or for use in any knowledge or retrieval system or device, unless permission in

writing is obtained from the copyright proprietors.

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Page 4: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

2 CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14)

1.1.2 This specification supplements the Contract Docu­ments and provides requirements for the Contractor.

1.1.3 This specification governs for construction within its scope, except the Contract Documents govern if there is a conflict.

1.1.4 This specification governs if there is a conflict with referenced material and testing standards.

1.1.5 The Contractor is permitted to submit written alter­natives to any provision in this specification.

1.1.6 Do not use this specification in conjunction with ACI 30 1, ACI 350 .5, or ACI 530 . 1 unless Contract Docu­ments state that this specification governs for Work covered by 1.1.1.

1.1.7 Ignore provisions of this specification that are not applicable to the Work.

1.1.8 Values in this specification are stated in SI units. A companion specification in inch-pound units is also available.

1.1.9 The "Notes to specifiers" are not part of this specification.

1.2-lnterpretation Unless otherwise explicitly stated, this specification shall

be interpreted using the following principles: (a) Interpret this specification consistent with the plain

meaning of the words and terms used. (b) Definitions provided in this specification govern.

Unless otherwise explicitly stated, this specification shall be interpreted using the following principles:

i. Its provisions are in harmony and do not conflict. ii. Headings are part of this specification and are

intended to identify the scope of the provisions or sections that follow. If there is a difference in meaning or implication between the text of a provision and a heading, the meaning of the text governs.

iii. Where a provision of this specification involves two or more items, conditions, requirements, or events connected by the conjunctions "and" or "or," interpret the conjunction as follows:

"and" indicates that all of the connected items, conditions, requirements, or events apply. "or" indicates that the connected items, conditions, requirements, or events apply singularly.

iv. The use of the verbs "may" or "will" indicates that the specification provision is for information to the Contractor.

1.3-Definitions 1.3.1 The following definitions govern in this specifica­

tion. For definitions not given herein, refer to "ACI Concrete Technology."

headbox-device for controlling the gravity flow of grout into the formwork.

unrestrained areas of grout-areas of grout that are not under or within 100 mm of the baseplate.

1.4-Referenced standards

Standards of ACI Spcited in this specification are listed by name and designation, including year.

1.4.1 ACI standards

ACI 117M-10 -Specification for Tolerances for Concrete Construction and Materials and Commentary

ACI 30 1M-10 -Specifications for Structural Concrete

1.5-Submittals 1.5.1 General-Provide to Architect/Engineer submittals

required by this specification in accordance with Contract Documents.

1.5.2 Quality control plan-If required, submit a quality control plan showing means and methods to control the purchase, use, and placement of grout. Provide information related to quality control in accordance with 1. 7 .4.

1.5.2.1 Submit data on qualifications of proposed testing agency for acceptance. Use of testing services will not relieve Contractor of the responsibility to furnish materials and construction in compliance with Contract Documents

1.5.3 Quality control procedures

1.5.3.1 Submit the following to Architect/Engineer before the start of the work:

a) Experience record of supervisory personnel b) List of equipment and procedures c) Detailed procedures for grouting, including anchoring

unrestrained area of grout if required in Contract Documents 1.5.3.2 Submit the following to the Architect/Engineer

during construction: a) Notification to Architect/Engineer in time to permit

in-place inspection of the foundation and form work prior to placement of grout

b) Test results for samples taken in accordance with I. 7.4 c) Record set markup of drawings d) Formwork and formwork accessories data

1.6-Delivery, storage, and handling 1.6.1 Grout shall be stored and handled in accordance with

the manufacturer's written instructions and material safety data sheets.

1.7-Quality control procedures 1.7.1 General-Grout materials and operations may be

tested and inspected by Owner as Work progresses. Failure to detect defective Work or material shall not prevent rejec­tion for defects discovered later nor shall it obligate Archi­tect/Engineer for final acceptance.

1.7.1.1 Testing agencies shall be accepted by Architect/ Engineer before performing any Work. Field tests of grout required in 1.7.2 and 1.7.3 shall be performed by personnel trained in testing grouts.

1.7.2 Testing responsibilities of Contractor-Unless

otherwise specified in Contract Documents, Contractor shall assume the following duties and responsibilities:

a) Qualify proposed materials b) Allow access to the project site or to the source of

materials and assist Owner's testing agency in obtaining

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Page 5: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14) 3

and handling samples at the project site or at the source of materials

c) Advise Owner's testing agency at least 24 hours in advance of operations to allow for completion of quality tests and for assignment of personnel

d) Provide and maintain adequate facilities on the project site for safe and acceptable storage and initial curing of grout test specimens for the sole use of testing agency

1.7.3 Quality control-Quality control shall be performed to ensure the following in accordance with the grout mate­rial manufacturer's written instructions or as indicated in Contract Documents:

a) The grout has not exceeded its shelf life b) The foundation and baseplate have been properly

prepared c) The formwork is fit for purposes d) The required tests are performed at the specified

frequency e) The correct placing methods are used f) Proper curing temperature is maintained for the required

time g) Shims, wedges, or leveling devices are removed unless

otherwise specified after material has reached full cure. h) Temperature of the baseplate, grouting materials, foun­

dation, and air are within specified parameters. 1.7.4 Samples shall be taken every day and when any of

the component batch numbers change during grout installa­tion. Test samples for properties critical to the installation such as flow, wet density, bleed, and strength, using docu­mented test methods appropriate to the type of grout, as cited in the contract documents and grout manufacturer's instruc­tions. Record the amount of water and any admixtures used in mixing.

1.8-Acceptance of work 1.8.1 General-Completed grout shall conform to appli­

cable requirements of this specification and Contract Documents

1.8.1.1. Grout that fails to meet one or more requirements of Contract Documents but subsequently is repaired to bring the grout into compliance will be accepted.

1.8.1.2 Grout that fails to meet one or more requirements of Contract Documents and cannot be brought into compli­ance is subject to rejection.

1.8.1.3 Repair rejected grout by removing and replacing or by additional construction to strengthen or otherwise satisfy project requirement as directed by Architect/Engineer. To bring rejected Work into compliance, use repair methods that meet applicable requirements for function, durability, dimensional tolerances, and appearance as determined by Architect/Engineer.

1.8.1.4 Submit proposed repair methods, materials, and modifications needed to repair the grout to meet the require­ments of Contract Documents.

1.8.1.5 Contractor shall be responsible to bring grout into compliance with requirements of Contract Documents.

1.8.2 Dimensional tolerances

1.8.2.1 Unless otherwise specified, construction toler­ances shall conform to ACI 117M.

1.8.2.2 Formed surfaces resulting in grout with dimen­sions smaller than permitted by the tolerances of ACI 117M may be considered deficient in strength and subject to the provisions of 1.8.4.

1.8.2.3 Formed surfaces resulting in grout with dimen­sions larger than permitted by ACI 117M are subject to rejec­tion. Remove excess materials when required by Architect/ Engineer.

1.8.2.4 Inaccurately formed grout surfaces that exceed ACI 117M tolerances are subject to rejection.

1.8.3 Appearance 1.8.3.1 Grout surfaces not meeting the requirements of

3.2.7 or 3.2.12 shall be brought into compliance in accor­dance with 1.8.1.

1.8.4 Strength

1.8.4.1 Criteria for determining potential strength defi­

ciency-Strength may be considered deficient and grout work is subject to rejection when the Work fails to comply with requirements that control the strength of the grout including, but not limited to, the conditions given in the following:

(a) Grout strength failing to comply with specified parameters

(b) Reinforcement size, quantity, grade, position, or arrangement at variance with the requirements of 3 .1.4 or other Contract Documents

(c) Grout that differs from the required dimensions or location

(d) Curing not performed in accordance with Contract Documents

(e) Insufficient protection of grout from extreme tempera­ture and other adverse environmental conditions during early stages of hardening and strength development

(f) Mechanical injury, construction fires, or premature removal of formwork resulting in deficient strength

1.8.4.2 Action required when strength is potentially defi­

cient-When grout structural strength is considered poten­tially deficient, the actions given in the following may be required by Architect/Engineer:

(a) Structural analysis, additional testing, or both (b) Core tests (c) Load tests, which may be required if core testing is

inconclusive or impractical or if structural analysis does not confirm the safety of the grout-supported equipment

(d) Strengthening with additional construction or replace­ment for grout work shown deficient by structural analysis or by results of a load test

(e) Submittal of documentation for repair work proposed to bring strength-deficient grout work into compliance with Contract Documents

1.8.5 Durability 1.8.5.1 Criteria for determining potential durability defi­

ciency-Durability of grout may be considered deficient when it fails to comply with the requirements that control durability, including, but not limited to, the conditions given in the following.

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Page 6: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

4 CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14)

(a) Grout strength failing to comply with specified parameters

(b) Materials for grout not conforming to the requirements in Contract Documents

(c) Curing not in accordance with Contract Documents requirements

(d) Insufficient protection of grout surfaces from detri­mental environmental conditions as required by contract documents

1.8.5.2 Action required when durability is potentially defi­

cient-When grout durability is considered potentially defi­cient, the actions given in the following may be required by Architect/Engineer.

(a) Obtain and test samples of the constituent materials used in the grout

(b) Obtain samples from the grout by coring, sawing, or other acceptable means

(c) Laboratory evaluation of grout and grout materials to assess the grout's resistance to weathering, chemical attack, abrasion, or other deterioration, and to protect reinforcement and metallic embedments from corrosion

(d) Repair or replace grout rejected for durability defi­ciency as directed by Architect/Engineer

(e) Document repair work to bring grout into compliance with Contract Documents and submit documentation for acceptance

PART 2-PRODUCTS

2.1-Grouts Supply grout as specified in Contract Documents.

2.2-Joint and sealant material

Supply joint and sealant material as specified in Contract Documents.

2.3-Formwork

Supply forms and formwork, including accessories, as specified in ACI 30 1M.

2.4-Water Unless otherwise specified in Contract Documents, all

water shall be potable.

PART 3-EXECUTION

3.1-Preparation 3.1.1 Prepare concrete surface on which grout will be

placed to provide a minimum 13 mm peak-to-valley profile, remove all laitance and microcracking from the concrete, and expose coarse aggregate. Use only small hand tools or a small pneumatic hammer with 130 N maximum weight with a moil or chisel point to generate the profile. Nail point tools, bush or bush head bits, large jack hammers, or pavement breakers shall not be used. The surface shall be thoroughly cleaned and protected from subsequent contamination. The concrete surface shall be saturated with water and main-

tained in a saturated condition for a minimum of 24 hours immediately before grouting.

3.1.2 Clear debris, dirt, and water from anchor bolt sleeves, shear key pockets, and other areas to receive grout using oil-free compressed air or vacuum.

3.1.3 For anchor bolt sleeves that are not specified to be grouted, clear debris, dirt, and water by oil-free compressed air or vacuum. Fill with nonbonding moldable materials as specified in Contract Documents.

3.1.4 Install pins, dowels, or other means of controlling shrinkage cracks, edge lifting, or both, in areas of unre­strained grout as specified in Contract Documents.

3.1.5 The equipment base shall be inspected to ensure that grout can be placed beneath the plate without trapping air in unvented comers. The inside of the baseplate shall be inspected where possible for blind areas or obstruction of flow. Verify that a vent hole 6 to 13 mm in diameter is placed through the plate at the intersection of all crossing stiffeners and at each point where air may be trapped.

3.1.6 Verify that grout holes for placement are located so that grout does not travel more than approximately 1200 mrn . The grout holes shall have been placed so that grouting can be started at one hole and progress to other holes to ensure that the grout flows under all areas of the plate. Verify that holes for pumping grout are 20 to 50 mm in diameter and threaded for standard pipe threads. Grout holes for gravity-assisted placement of grout should be 75 to 150 mm in diameter.

3.1.7 Verify that baseplate and other metal surfaces have been prepared in accordance with the manufacturers' requirements for grouting.

3.1.8 Inform Architect/Engineer immediately if equip­ment base would create issues with grout placement.

3.1.9 Forms-Forms shall be rigid and sealed with tape, caulk, or similar material to prevent leakage. Forms shall extend at least 25 mm above the highest elevation of the grout material under the grouted element and shall be built so that the grout can be placed as continuously and expedi­tiously as possible. Forms may also be provided to prevent grout from flowing over the top surface of the equipment base or baseplate.

3.1.10 Form coating-Forms shall be coated with compatible form oil or wax or lined with plastic or other suitable bond breaker or release agent. Do not allow form­work coating to contact underside of the equipment base or concrete surface.

3.1.11 Gravity flow applications-When grout is to be placed around the perimeter of a base, the forms shall be constructed so that a pressure head can be developed in a headbox on one side of the plate. The headbox shall begin 50 to 100 mm from the baseplate and slope away from the plate at approximately 45 degrees and provide a minimum grout head of 300 mm. The box shall be sealed to the form to generate the head pressure required to get the grout to flow to the opposite side. The form on the opposite side shall be 50 to 100 mrn from the plate edge and shall extend at least 25 mm above the bottom of the plate. On the side of the plate parallel to the direction of grout flow, the forms shall gener-

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Page 7: An ACI Standard...Standards of ACI Spcited in this specification are listed by name and designation, including year. 1.4.1 ACI standards ACI 117M-10-Specification for Tolerances for

CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14) 5

ally be less than 25 mm from the plate but still allow air to vent from beneath the plate during grout placement.

To install grout through grout holes, use a placement cone with a minimum grout head of 300 mm and sealed between the cone and the hole edge.

3.1.12 Pumping cementitious grout-For placements where the grout will be pumped under the plate through grout holes in the form, the forms shall be at least 50 mm outside the plate edge on all sides. Minimum clearance under the baseplate shall be 40 mm. The forms shall extend at least 25 mm above the highest grout elevation under the plate.

For placements where the grout will be pumped under the plate through a hose laying over the top of the form, the forms shall be spaced outside the plate so that there is no restriction of the grout flowing through the hose.

3.1.13 Corners-Round or chamfer all comers. 3.1.14 Expansion joints-Place expansion joints every

900 to 2100 mm to intersect all inside or outside comers. Joints shall run the full width of pour, length of pour, or both. Seal joints with tape or caulk where expansion joint material abuts adjacent material.

3.2-lnstallation 3.2.1 Unless otherwise specified, use mixers in accordance

with the manufacturer's written instructions or as described in the Contract Documents.

3.2.1.1 The mortar mixer shall have a metal shell with horizontal mixing blades. The mixing blades shall be angled so that adjacent paddle arms reverse the flow of the grout in the mixing drum during rotation of the horizontal shaft. The mixing blades shall have adjustable wiper blades that wipe the inner surfaces of the mixing chamber. The wiper blades shall be rubber or other flexible, wear-resistant mate­rial that does not deleteriously react with the grout mixture. The wiper blades shall be adjusted to continuously wipe the curved inner surface of the mixing chamber below the grout level and the ends of the chamber. The horizontal shaft shall rotate the mixing paddles at 28 to 35 rotations/minute.

3.2.1.2 The mixer shall be clean, prewetted, drained, and essentially free of hardened mortar and other foreign mate­rial that can be removed with a trowel or by striking with a hammer.

3.2.2 Batch and mix grouts in accordance with manufac­turer's recommendations. The water content or consistency of the cementitious grout shall not exceed the maximum or minimum values determined from qualification tests or recommended by the manufacturer and shall not cause bleeding or segregation in the mixed grout. The mixing time shall comply with the manufacturer's recommendation. Place grout as soon as possible after the completion of mixing. If the grout must be held in the mixer after the completion of the specified mixing time, the grout shall be agitated at slow speed before dispensing. The time that a batch can be held shall be within the limits of the manufacturer's recom­mendations. Placement shall not be attempted with any cementitious grout if the resulting consistency is outside the manufacturer's recommended range for the existing clear­ances and flow lengths using the method proposed to install

the grout. Once mixed to the right consistency, no additional water shall be added.

3.2.3 Temperature ranges-Adjust the ambient tempera­ture, grout temperature at placement, and temperature of foundation and baseplate within the temperature range recommended by the manufacturer.

3.2.4 Gravity flow placements-All placements shall be made from one side and shall begin at one comer of the plate or skid and continue at that point until the grout rises above the bottom of the plate on the opposite side of the plate or skid. Move the placement point or portable headbox slowly along the plate from one end to the other or to the next expansion joint section. The placement point shall not be moved until the face of grout moves along the length of the plate on the opposite side. The headbox shall not be allowed to become empty once the grout rises to the bottom of the headbox. Grout shall not be placed at various locations along one side. Grout shall not be poured toward the center from opposite ends or sides. When using expansion joints, pour grout into the adjoining expansion joint area once the previous area is at least 50 percent full. Follow the manu-facturer's recommendations for thick placements to control heat generation and shrinkage. .

3.2.5 Pumped placement-Pumping shall begin at tlie grout inlet nearest one end of the plate. Grout shall be pumped into that inlet until it flows up into an adjacent inlet and flows from the entire plate perimeter adjacent to the inlet. The pump line shall then be moved to the adjacent inlet and pumping continued. The pump line shall be moved to successive inlets until grouting is complete. Grout shall not be pumped into more than one inlet simultaneously or before grout flow has reached an adjacent inlet. When a hose or lance is to be used to pump grout under the plate, the hose or lance shall be inserted under the plate to the point farthest from the point of insertion. The hose or lance shall be with­drawn as grout is pumped under the plate but the hose or lance outlet shall remain embedded in the grout. Dispos­able hoses may be left in place, provided that they are full of grout.

3.2.6 No forms, headbox, or grout (except spillage) shall be removed until the grout has stiffened sufficiently to ensure that the grout does not sag below plate level.

3.2.7 Surface .finishes-Finish surface in accordance with manufacturer's specification, or as specified in Contract Documents. If a troweled or broomed finished is specified, finish surface while grout is still tacky.

3.2.8 Headboxes-Remove any grout headboxes after grout has set sufficiently. Do not plug or fill baseplate and void holes until the grout has set.

3.2.9 After placement, the foundation and machine or equipment base shall be kept at a temperature that is within the temperature range specified for placing, curing, and strength development requirements for the grout. The temperature shall be maintained within this range until the grout reaches final set. After final set, the grout shall be protected from cold or hot weather conditions until design strength is achieved. The grout shall be cured in accordance with the manufacturer's written instructions. The tempera-

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6 CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14)

ture shall then be adjusted to ambient temperatures over a period of 48 hours.

3.2.10 Once grout has reached design strength, remove jackscrews and temporary shims.

3.2.11 Fill any expansion joints with accepted material. 3.2.12 Unless otherwise specified, coat top of foundation

and grout with accepted coating material. 3.2.13 Tension anchor bolts as specified in Contract

Documents.

3.3-Testing and inspection 3.3.1 Sample collection-Samples shall be taken every

day and when any of the component batch numbers change during cementitious grout installation. Test samples for prop­erties critical to the installation such as flow, wet density, bleed, and strength, using documented test methods appro­priate to the type of grout, as cited in the Contract Docu­ments and grout manufacturer's instructions.

3.3.2 Inspect baseplates for movement beyond the speci­fied tolerances. If movement has occurred, notify Architect/ Engineer to determine resolution.

3.3.3 Inspect the grout for softness. Inspect the grout for voids by tapping on the plate and listening for hollow sounds.

3.4-Repair

3.4.1 If voids are detected, fill voids according to manu­facturer's recommendations. Recheck for voids. Repeat the void filling and checking as necessary to ensure no voids are present.

3.5-Cieaning

3.5.1 Immediately after grouting is completed, all tools and mixing equipment shall be cleaned using water or an approved solvent.

3.5.2 All unused mixed grout materials and clean-up residue shall be disposed of in accordance with Contract Documents.

(nonmandatory portion follows)

NOTES TO SPECIFIERS

General notes Gl. ACI Specification 351.4M-14 is to be used by refer­

ence or incorporation in its entirety in the Project Specifica­tion. Do not copy individual sections, parts, articles, or para­graphs into the Project Specification because taking them out of context may change their meaning.

G2. If sections or parts of ACI Specification 351.4M-14 are copied into the Project Specification or any other docu­ment, do not refer to them as an ACI specification, because the specification has been altered.

G3. A statement such as the following will serve to make ACI Specification 351.4M-14 a part of the Project Specification:

Work on (Project Title) shall conform to all require­ments of ACI 351.4M-14, "Specification for Instal­lation of Cementitious Grouting between Foun­dations and Equipment Bases," published by the American Concrete Institute, Farmington Hills, Michigan, except as modified by these Contract Documents.

G4. Each technical section of ACI Specification 351.4M-14 is written in the three-part section format of the Construction Specifications Institute, as adapted for ACI requirements. The language is imperative and terse.

G5. If ACI Specification 351.4M-14 is used with another ACI specification that contains overlapping provisions, identify which requirements are in conflict and state in the Contract Documents which requirements control.

Foreword to checklists Fl. This foreword is included for explanatory purposes

only; it is not a part of ACI Specification 351.4M-14. F2. ACI Specification 351.4M-14 may be referenced by

the Specifier in the Project Specification for any project, together with supplementary requirements for the specific project. Responsibilities for project participants must be defined in the Project Specification. ACI Specification 351.4M-14 cannot and does not address responsibilities for any project participant other than the Contractor.

F3. Checklists do not form a part of ACI Specification 351.4M-14. Checklists assist the Specifier in selecting and specifying project requirements in the Project Specification.

F4. The Mandatory Requirements Checklist indicates work requirements regarding specific qualities, procedures, materials, and performance criteria that are not defined in ACI Specification 351.4M-14. The Specifier must include these requirements in the Project Specification.

F5. The Optional Requirements Checklist identifies Spec­ifier choices and alternatives. The Checklist identifies the Sections, Parts, and Articles of the ACI Reference Specifica­tion 351.4M-14 and the action required or available to the Specifier. The Specifier shall review each of the items in the Checklist and make adjustments to the needs of a particular project by including those selected alternatives as manda­tory requirements in the Project Specification.

F6. The Submittals Checklist identifies information or data to be provided by the Contractor before, during, or after construction.

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CEMENTITIOUS GROUTING BETWEEN FOUNDATIONS AND EQUIPMENT BASES (ACI 351.4M-14)

MAN DATORY REQUIREMENTS CHECKLIST

Section/Part/ Article Notes to Specifiers

General

1.7.4 Quality assurance requirements.

Materials 2.1 Specify grout material.

2.2 Specify joint and sealant material.

Execution

3.1.4 Specify means of controlling shrinkage cracks for unrestrained grout areas.

3.1.7 Specify preparation requirements of baseplates and other metal surfaces.

3.1.11 Specify expansion sealant.

3.2.11 Specify expansion joint filler materials.

OPTIONAL REQUIREMENTS CHECKLIST

Section/Part/ Article Notes to Specifiers

General 1.5.2 Specify if quality control plan is required.

1.7.2 Specify alternative duties and responsibilities.

1.7.3g Specify alternative removal time for shims, wedges, or leveling devices.

Materials

2.4 Water quality requirements

Execution 3.1.2 Specify which anchor bolt sleeve(s) should be filled with grout.

3.1.3 Specify if nonbondable material should be used.

3.2.1 Specify alternative mixer.

3.2.7 Specify finish surface.

3.2.12 Specify coating material when required.

3.2.13 Specify tension for anchor bolts.

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American Concrete Institute Always advancing

As ACI begins its second century of advancing concrete knowledge, its original chartered purpose remains "to provide a comradeship in finding the best ways to do concrete work of all kinds and in spreading knowledge." In keeping with this purpose, ACI supports the following activities:

Technical committees that produce consensus reports, guides, specifications, and codes.

Spring and fall conventions to facilitate the work of its committees.

Educational seminars that disseminate reliable information on concrete.

Certification programs for personnel employed within the concrete industry.

Student programs such as scholarships, internships, and competitions.

Sponsoring and co-sponsoring international conferences and symposia.

Formal coordination with several international concrete related societies.

Periodicals: the ACI Structural Journal, Materials Journal, and Concrete International.

Benefits of membership include a subscription to Concrete International and to an ACI Journal. ACI members receive discounts of up to 40% on all ACI products and services, including documents, seminars and convention registration fees.

As a member of ACI, you join thousands of practitioners and professionals worldwide who share a commitment to maintain the highest industry standards for concrete technology, construction, and practices. In addition, ACI chapters provide opportunities for interaction of professionals and practitioners at a local level.

American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 Phone: +1.248.848.3700 Fax: +1.248.848.3701

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American Concrete Institute Provided by IHS under license with ACI

American Concrete Institute Always advancing

38800 Country Club Drive

Farmington Hills, Ml 48331 USA

+1.248.848.3700

www.concrete.org

The American Concrete Institute (ACI) is a leading authority and resource

worldwide for the development and distribution of consensus-based

standards and technical resources, educational programs, and certifications

for individuals and organizations involved in concrete design, construction,

and materials, who share a commitment to pursuing the best use of concrete.

Individuals interested in the activities of ACI are encouraged to explore the

ACI website for membership opportunities, committee activities, and a wide

variety of concrete resources. As a volunteer member-driven organization,

ACI invites partnerships and welcomes all concrete professionals who wish to

be part of a respected, connected, social group that provides an opportunity

for professional growth, networking and enjoyment.

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