ASTM C942-99

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

SCOPE
1.1 This test method covers the determination of the compressive strength of hydraulic cement grout for preplaced-aggregate (PA) concrete.  
1.2 This standard does not purport to address all of the safety problems, 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.  
1.3 The values in inch-pound units are to be regarded as standard.

General Information

• Status: Historical
• Publication Date: 09-Jan-1999
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.41 - Hydraulic Cement Grouts

Relations

• Replaced By: ASTM C942-99(2004) - Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 10-Jan-1999
• 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: 10-Jan-1999
• Referred By: ASTM C938-19 - Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
• Effective Date: 10-Jan-1999

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C 942–99
Standard Test Method for
Compressive Strength of Grouts for Preplaced-Aggregate
Concrete in the Laboratory
This standard is issued under the fixed designation C 942; 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 (e) 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 4.2 It is particularly applicable for determining the effect on
compressive strength of grout fluidifier to be used with grout
1.1 This test method covers the determination of the com-
for PA concrete. (See Specification C 937.)
pressive strength of hydraulic cement grout for preplaced-
aggregate (PA) concrete.
5. Apparatus
1.2 The values stated in SI units are to be regarded as
5.1 Scales, masses, sieves, glass graduates, and three-gang
standard.
molds, for 2-in. (or 50-mm) cube specimens, baseplates,
1.3 This standard does not purport to address all of the
trowel, and testing machine as specified in Test Method
safety concerns, if any, associated with its use. It is the
C 109/C 109M.
responsibility of the user of this standard to establish appro-
5.2 Plates, to cover specimen molds, capable of supporting
priate safety and health practices and determine the applica-
the weight or being held down by C-clamps, as described in
bility of regulatory limitations prior to use.
9.3.
2. Referenced Documents 5.3 Mass of 7 kg (or 15 lb) or C-clamps, for holding down
the cover plates.
2.1 ASTM Standards:
C 31/C 31M Practice for Making and Curing Concrete Test
6. Temperature and Humidity
Specimens in the Field
6.1 Temperature and humidity conditions for tests per-
C 109/C 109M Test Method for Compressive Strength of
formed in the laboratory shall be in accordance with Test
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
Method C 109/C 109M unless otherwise specified.
Specimens)
6.2 Temperature and humidity conditions for tests per-
C 937 Specification for Grout Fluidifier for Preplaced-
2 formed in the field shall be as prescribed for curing cylinders
Aggregate Concrete
in Practice C 31/C 31M.
C 938 Practice for Proportioning Grout Mixtures for
Preplaced-Aggregate Concrete
7. Sampling
C 939 Test Method for Flow of Grout for Preplaced-
2 7.1 The test sample shall consist of approximately 1500 mL
Aggregate Concrete (Flow Cone Method)
ofgroutandshallberepresentativeofthematerialinthemixer.
3. Summary of Test Method 7.2 Grout proportioned at the mixer from hydraulic ce-
ment(s) with or without other materials shall be mixed in
3.1 Compressive strength of hardened grout is determined
accordance with Specification C 937.
using top-restrained cubes as defined in Test Method C 109/
7.3 Packaged grouts requiring only the addition of water or
C 109M.
other fluid shall be mixed in accordance with the manufactur-
4. Significance and Use er’s printed recommendations.
4.1 This test method affords a means for determining the
8. Preparation of Specimen Molds
compressive strength of grouts that expand and, in use, harden
8.1 Prepare the molds as specified in Test Method C 109/
under conditions of partial to total restraint.
C 109M.
9. Procedure
ThistestmethodisunderthejurisdictionofASTMCommitteeC-9onConcrete
andConcreteAggregatesandisthedirectresponsibilityofSubcommitteeC09.41on
9.1 Determine the consistency of grout as follows:
Concrete for Radiation Shielding.
9.1.1 Use the flow cone, Test Method C 939, for grout to be
Current edition approved Jan. 10, 1999. Published March 1999. Originally
published as C 942 – 81. Last previous edition C 942 – 98a. used for PA concrete or whenever the consistency is less than
Annual Book of ASTM Standards, Vol 04.02.
35 s.
Annual Book of ASTM Standards, Vol 04.01.
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