ASTM C942-10

Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory

SIGNIFICANCE AND USE
This test method affords a means for determining the compressive strength of grouts that expand and, in use, harden under conditions of partial to total restraint.  
It is particularly applicable for determining the effect on compressive strength of grout fluidifier to be used with grout for PA concrete (See Specification C937).
SCOPE
1.1 This test method covers the determination of the compressive strength of hydraulic cement grout for preplaced-aggregate (PA) concrete.
1.2 The values stated in SI units are to be regarded as standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 14-Jun-2010
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.41 - Hydraulic Cement Grouts

Relations

• Replaces: ASTM C942-99(2004) - Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 15-Jun-2010
• Referred By: ASTM F1698-21 - Standard Practice for Installation of Poly(Vinyl Chloride)(PVC) Profile Strip Liner and Cementitious Grout for Rehabilitation of Existing Man-Entry Sewers and Conduits
• Effective Date: 15-Jun-2010
• Referred By: ASTM C938-19 - Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
• Effective Date: 15-Jun-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C942 − 10
StandardTest Method for
Compressive Strength of Grouts for Preplaced-Aggregate
1
Concrete in the Laboratory
This standard is issued under the fixed designation C942; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3.1.1 For definitions of terms used in this test method, refer
to Terminologies C125 and C219.
1.1 This test method covers the determination of the com-
pressive strength of hydraulic cement grout for preplaced-
4. Summary of Test Method
aggregate (PA) concrete.
4.1 Compressive strength of hardened grout is determined
1.2 The values stated in SI units are to be regarded as
using top-restrained cubes as defined in Test Method C109/
standard.
C109M.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
5.1 This test method affords a means for determining the
priate safety and health practices and determine the applica-
compressive strength of grouts that expand and, in use, harden
bility of regulatory limitations prior to use.
under conditions of partial to total restraint.
2. Referenced Documents
5.2 It is particularly applicable for determining the effect on
2
2.1 ASTM Standards:
compressive strength of grout fluidifier to be used with grout
C31/C31M Practice for Making and Curing Concrete Test
for PA concrete (See Specification C937).
Specimens in the Field
C109/C109M Test Method for Compressive Strength of
6. Apparatus
Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube
6.1 Scales, masses, sieves, glass graduates, and three-gang
Specimens)
molds, for 2-in. (or 50-mm) cube specimens, baseplates,
C125 Terminology Relating to Concrete and Concrete Ag-
trowel, and testing machine as specified in Test Method
gregates
C109/C109M.
C219 Terminology Relating to Hydraulic Cement
6.2 Plates, to cover specimen molds, capable of supporting
C937 Specification for Grout Fluidifier for Preplaced-
the weight or being held down by C-clamps, as described in
Aggregate Concrete
10.3.
C938 Practice for Proportioning Grout Mixtures for
Preplaced-Aggregate Concrete
6.3 Mass of 7 kg (or 15 lb) or C-clamps, for holding down
C939 Test Method for Flow of Grout for Preplaced-
the cover plates.
Aggregate Concrete (Flow Cone Method)
7. Temperature and Humidity
3. Terminology
7.1 Temperature and humidity conditions for tests per-
3.1 Definitions:
formed in the laboratory shall be in accordance with Test
Method C109/C109M unless otherwise specified.
1
This test method is under the jurisdiction of ASTM Committee C09 on
7.2 Temperature and humidity conditions for tests per-
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
C09.41 on Hydraulic Cement Grouts.
formed in the field shall be as prescribed for curing cylinders
Current edition approved June 15, 2010. Published July 2010. Originally
in Practice C31/C31M.
approved in 1981. Last previous edition approved in 2004 as C942–99(2004)
10.1520/C0942-10
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 8. Sampling
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
8.1 The test sample shall consist of approximately 1500 mL
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ofgroutandshallberepresentativeofthematerialinthemixer.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C942 − 10
8.2 Grout proportioned at the mixer from hydraulic ce- 11. Storage and Curing
ment(s) with or without other materials shall be mixed in
11.1 Immediately upon completion of molding:
accordance with Specification C937.
11.1.1 Place laboratory specimens in the moist room and
8.3 Packaged grouts requiring only the addition of water or cure in accordance with the applicable portions of Test Method
other fluid shall be mixed in accordance with the manufactur- C109/C109M.
er’s printed recommendations. 11.1.2 Store field specimens and cure in accordance with
Curing Cylinders of Practice C31/C31M.
9. Preparation of Specimen Molds
11.2 Stripping—With grouts that expand prior to hardening,
9.1 Prepare the molds as specified in Test Method C109/ do not strip molds before age 24 h or final set, whichever
C109M.
occurs later.
11.2.1 Donotstripmolds
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C942–99(Reapproved2004) Designation:C942–10
Standard Test Method for
Compressive Strength of Grouts for Preplaced-Aggregate
1
Concrete in the Laboratory
This standard is issued under the fixed designation C942; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This test method covers the determination of the compressive strength of hydraulic cement grout for preplaced-aggregate
(PA) concrete.
1.2 The values stated in SI units are to be regarded as standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C109/C109M Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens)
C125 Terminology Relating to Concrete and Concrete Aggregates
C219 Terminology Relating to Hydraulic Cement
C937 Specification for Grout Fluidifier for Preplaced-Aggregate Concrete
C938 Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
C939 Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminologies C125 and C219.
4. Summary of Test Method
34.1 Compressive strength of hardened grout is determined using top-restrained cubes as defined inTest Method C109/C109M.
4.
5. Significance and Use
4.1This5.1 This test method affords a means for determining the compressive strength of grouts that expand and, in use, harden
under conditions of partial to total restraint.
4.2It5.2 It is particularly applicable for determining the effect on compressive strength of grout fluidifier to be used with grout
for PA concrete (See Specification C937).
5.
6. Apparatus
5.1
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.41 on
Hydraulic Cement Grouts.
Current edition approved Nov. 1, 2004. Published December 2004. Originally approved in 1981. Last previous edition approved in 1999 as C942–99. DOI:
10.1520/C0942-99R04.
Current edition approved June 15, 2010. Published July 2010. Originally approved in 1981. Last previous edition approved in 2004 as C942–99(2004) 10.1520/C0942-10
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C942–10
6.1 Scales, masses, sieves, glass graduates, and three-gang molds, for 2-in. (or 50-mm) cube specimens, baseplates, trowel, and
testing machine as specified in Test Method C109/C109M.
5.2
6.2 Plates,tocoverspecimenmolds,capableofsupportingtheweightorbeinghelddownbyC-clamps,asdescribedin9.310.3.
5.3
6.3 Mass of 7 kg (or 15 lb) or C-clamps, for holding down the cover plates.
6.
7. Temperature and Humidity
67.1 Temperature and humidity conditions for tests performed in the laboratory shall be in accordance with Test Method
C109/C109M unless otherwise specified.
67.2 Temperature and humidity conditions for tests performed in the field shall be as prescribed for curing cylinders in Practice
C31/C31M.
7.
8. Sampling
7.1The8.1 The test sample shall consist of approximately 1500 mL of grout and shall be representative of the material in the
mixer.
7.2Grout8.2 Grout proportioned at the mixer from hydraulic cement(s) with or without other materials shall be mixed in
accordance with Specification C937.
78.3 Packaged grouts requiring only the addition of water or other fluid shall be mixed in accordance with the manufacturer’s
printed recommendations.
8.9. Preparation of Specimen Mold
...