ASTM C938-97

Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete

SCOPE
1.1 This practice describes the laboratory procedure for selecting proportions for grout mixtures required in the production of preplaced-aggregate (PA) concrete.  
1.2 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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: 09-Aug-1997
• 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 C938-02 - Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
• Effective Date: 10-Dec-2002
• Referred By: ASTM C1741-18 - Standard Test Method for Bleed Stability of Cementitious Post-Tensioning Tendon Grout
• Effective Date: 10-Aug-1997
• Referred By: ASTM C942/C942M-21 - Standard Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 10-Aug-1997
• Referred By: ASTM C939/C939M-22 - Standard Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)
• Effective Date: 10-Aug-1997
• Referred By: ASTM C953-17 - Standard Test Method for Time of Setting of Grouts for Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 10-Aug-1997
• Referred By: ASTM C943-17 - Standard Practice for Making Test Cylinders and Prisms for Determining Strength and Density of Preplaced-Aggregate Concrete in the Laboratory
• Effective Date: 10-Aug-1997
• Referred By: ASTM C937-23 - Standard Specification for Grout Fluidifier for Preplaced-Aggregate Concrete
• Effective Date: 10-Aug-1997

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 938 – 97
Standard Practice for
Proportioning Grout Mixtures for Preplaced-Aggregate
Concrete
This standard is issued under the fixed designation C 938; 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.
1. Scope C 941 Test Method for Water Retentivity of Grout Mixtures
for Preplaced-Aggregate Concrete in the Laboratory
1.1 This practice describes the laboratory procedure for
C 942 Test Method for Compressive Strength of Grouts for
selecting proportions for grout mixtures required in the pro-
Preplaced-Aggregate Concrete in the Laboratory
duction of preplaced-aggregate (PA) concrete.
C 943 Practice for Making Test Cylinders and Prisms for
1.2 The values stated in SI units are to be regarded as the
Determining Strength and Density of Preplaced-Aggregate
standard. The values given in parentheses are provided for
Concrete in the Laboratory
information purposes only.
1.3 This standard does not purport to address all of the
3. Summary of Practice
safety concerns, if any, associated with its use. It is the
3.1 Grouts at fluid consistency are prepared from one or
responsibility of the user of this standard to establish appro-
more mixtures of cement, pozzolan, fine aggregate, grout
priate safety and health practices and determine the applica-
fluidifier, with or without other chemical admixtures, and
bility of regulatory limitations prior to use.
water, and tested to determine:
2. Referenced Documents 3.1.1 The properties of the grout, and
3.1.2 The properties of PA concrete made with the grout
2.1 ASTM Standards:
when the grout is intended for such use.
C 39 Test Method for Compressive Strength of Cylindrical
3.2 The procedure and equipment required for mixing this
Concrete Specimens
grout are prescribed in this practice.
C 109/C 109M Test Method for Compressive Strength of
Hydraulic Cement Mortars (Using 2-in. or 50-mm Cube
4. Significance and Use
Specimens)
3 4.1 This practice provides a standard procedure for selecting
C 150 Specification for Portland Cement
proportions for mixtures of grout to be used at fluid consistency
C 185 Test Method for Air Content of Hydraulic Cement
3 in the production of PA concrete meeting applicable criteria for
Mortar
strength, density, and other properties.
C 192 Practice for Making and Curing Concrete Test Speci-
2 4.2 This practice is also useful for determining the compo-
mens in the Laboratory
sition of grout mixed at fluid consistency and meeting specified
C 618 Specification for Fly Ash and Raw or Calcined
requirements for filling voids, cavities, and spaces in rock,
Natural Pozzolan for Use as a Mineral Admixture in
2 foundations, and concrete structures.
Portland Cement Concrete
C 637 Specification for Aggregates for Radiation-Shielding
5. Apparatus
Concrete
5.1 Mixer, constructed as shown in Fig. 1. The three mixer
C 937 Specification for Grout Fluidifier for Preplaced-
2 blades shall be made of steel plate, 3-mm ( ⁄8-in.) thick, with a
Aggregate Concrete
100 by 125-mm (4 by 5-in.) elliptical shape. Each blade shall
C 939 Test Method for Flow of Grout for Preplaced-
2 have two 25 by 75-mm (1 by 3-in.) slots centered on the major
Aggregate Concrete
axis, and shall be welded to the shaft at an angle of approxi-
C 940 Test Method for Expansion and Bleeding of Freshly
mately 23° with the horizontal in such a way as to force grout
Mixed Grouts for Preplaced-Aggregate Concrete in the
2 to the bottom of the mixer during rotation. The mixer blades
Laboratory
shall be powered to rotate at approximately 275 r/min under
load.
This practice is under the jurisdiction of ASTM Committee C-9 on Concrete
5.2 Scales or Balance, accurate to within 0.3 % of the test
and Concrete Aggregatesand is the direct responsibility of Subcommittee C09.41on
mass at any point within range of use.
Concrete for Radiation Shielding.
Current edition approved Aug. 10, 1997. Published June 1998. Originally
6. Materials
published as C 938 – 82. Last previous edition C 938 – 80 (1991).
Annual Book of ASTM Standards, Vol 04.02.
6.1 Materials for test purposes, except mixing water, shall
Annual Book of ASTM Standards, Vol 04.01.
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 938
FIG. 1 Grout Mixer
meet the following requirements unless otherwise specified in 9. Procedure
project documents:
9.1 Prebatch grout ingredients by mass to provide a batch
6.1.1 Portland cement, Specification C 150, nonair- 3 3
volume after mixing of approximately 0.03 m (1 ft ).
entraining,
9.2 The first trial mixture, unless otherwise specified, shall
6.1.2 Pozzolan, if used, Specification C 618,
contain equal parts, by mass, of cementitious material and fine
6.1.3 Fluidifier, Specification C 937, and
aggregate, fluidifier in amount 1 % mass of cementitious
6.1.4 Fine aggregate, Specification C 637, Table 2, Grading
material, unless otherwise recommended by manufacturer, and
1 for specific gravity under 3.0 and Grading 2 for s
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