Standard Specification for Grout Fluidifier for Preplaced-Aggregate Concrete

SCOPE
1.1 This specification covers fluidifier for grout used for preplaced-aggregate (PA) concrete.  
1.2 The following precautionary caveat pertains only to the test method portion, Section 8, of this standard: This standard does not purport to address 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.

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Publication Date
09-Aug-1997
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ASTM C937-97 - Standard Specification for Grout Fluidifier for Preplaced-Aggregate Concrete
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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.
Designation: C 937 – 97
Standard Specification for
Grout Fluidifier for Preplaced-Aggregate Concrete
This standard is issued under the fixed designation C 937; 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.
TABLE 1 Expansion Limits
1. Scope
Alkali Content of Cement, %
1.1 This specification covers fluidifier for grout used for
Expansion Limits, %
Expressed as Na O
preplaced-aggregate (PA) concrete.
0.80 or more 7 to 14
1.2 The values stated in SI units are to be regarded as the
0.40 to 0.79 5 to 12
standard. The values given in parentheses are for information
0.39 or less 3 to 9
purposes only.
1.3 The following precautionary caveat pertains only to the
Preplaced-Aggregate Concrete in the Laboratory
test method portion, Section 8, of this standard: This standard
does not purport to address all of the safety concerns, if any,
3. Ordering Information
associated with its use. It is the responsibility of the user of this
3.1 The purchaser shall specify the material desired as
standard to establish appropriate safety and health practices
“grout fluidifier for preplaced-aggregate concrete”. The mate-
and determine the applicability of regulatory limitations prior
rial shall meet the requirements of this specification.
to use.
4. Materials
2. Referenced Documents
4.1 Grout ingredients shall conform to the following re-
2.1 ASTM Standards:
2 quirements:
C 33 Specification for Concrete Aggregates
3 4.1.1 Portland cement shall meet the requirements of Speci-
C 150 Specification for Portland Cement
fication C 150 for the type to be used.
C 618 Specification for Fly Ash and Raw or Calcined
4.1.2 Pozzolan shall meet the requirements of Specification
Natural Pozzolan for Use as a Mineral Admixture in
C 618.
Portland Cement Concrete
4.1.3 Fine aggregate shall meet the requirements of Speci-
C 637 Specification for Aggregates for Radiation-Shielding
fication C 33 except that grading shall conform to Specification
Concrete
C 637, Table 2, Grading 1 for Fine Aggregate.
C 938 Practice for Proportioning Grout Mixtures for
Preplaced-Aggregate Concrete
5. Physical Requirements
C 939 Test Method for Flow of Grout for Preplaced-
2 5.1 The fluidifier, when tested in grout as specified herein,
Aggregate Concrete (Flow Cone Method)
shall conform to the following requirements:
C 940 Test Method for Expansion and Bleeding of Freshly
Reduction in mixing water, min, % of control
Mixed Grouts for Preplaced-Aggregate Concrete in the
(Test Method C 941) 3
Laboratory
Expansion, 3 h after mixing,
C 941 Test Method for Water Retentivity of Grout Mixtures (Test Method C 940) See Table 1
2 Bleeding, 3 h after mixing, (Test Method C 940),
for Preplaced-Aggregate Concrete in the Laboratory
max, % 2
C 942 Test Method for Compressive Strength of Grouts for
Increase in water retentivity (Test Method C 941),
Preplaced-Aggregate Concrete in the Laboratory min, % of control 60
Initial setting time, min, h (Test Method C 953) 4
C 943 Practice for Making Test Cylinders and Prisms for
Final setting time, max, h (Test Method C 953) 24
Determining Strength and Density of Preplaced-Aggregate
Compressive strength at 7 days and 28 days, (Test
Method C 942), min, % of control 90
Concrete in the Laboratory
C 953 Test Method for Time of Setting of Grouts for
6. Composition
6.1 The fluidifier shall be composed of materials that will
1 yield a product having the properties stipulated under Physical
This specification is under the jurisdiction of ASTM Committee C-9 on
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee Requirements when tested in accordance with this specifica-
C9.41 on Concrete for Radiation Shielding.
tion.
Current edition approved Aug. 10, 1997. Published June 1998. Originally
e1
published as C 937 – 80. Last previous edition C 937 – 80 (1991) .
7. Sampling
Annual Book of ASTM Standards, Vol 04.02.
Annual Book of ASTM Standards, Vol 14.01. 7.1 The test sample of fluidifier shall have a mass of at least
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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 937
225g( ⁄2 lb) and shall be representative of the material
W 5 mass of water required in grout mixture with fluidi-
t
supplied. When feasible, the test sample shall be composited
fier.
from grab samples taken from not fewer than four packages
8.4.2 Increase in water retentivity (I ):
r
selected at random.
~R 2 R ! 3 100
t c
I 5 (2)
r
R
c
8. Test Method
where:
8.1 Summary of Method—Physical properties of grout con-
I 5 increase in water retentivity, %,
taining fluidifier are determined and compared with corr
...

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