ASTM C938-19
(Practice)Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
Standard Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
SIGNIFICANCE AND USE
5.1 This practice provides a standard procedure for selecting proportions for mixtures of grout to be used at fluid consistency in the production of PA concrete meeting applicable criteria for strength, density, and other properties.
5.2 This practice is also useful for determining the composition of grout mixed at fluid consistency and meeting specified requirements for filling voids, cavities, and spaces in rock, foundations, and concrete structures.
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 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C938 − 19
Standard Practice for
Proportioning Grout Mixtures for Preplaced-Aggregate
1
Concrete
This standard is issued under the fixed designation C938; 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.
1. Scope* C939/C939M Test Method for Flow of Grout for Preplaced-
Aggregate Concrete (Flow Cone Method)
1.1 This practice describes the laboratory procedure for
C940 Test Method for Expansion and Bleeding of Freshly
selecting proportions for grout mixtures required in the pro-
Mixed Grouts for Preplaced-Aggregate Concrete in the
duction of preplaced-aggregate (PA) concrete.
Laboratory
1.2 The values stated in SI units are to be regarded as
C941 Test Method for Water Retentivity of Grout Mixtures
standard. The values given in parentheses after SI units are
for Preplaced-Aggregate Concrete in the Laboratory
provided for information only and are not considered standard.
C942 Test Method for Compressive Strength of Grouts for
1.3 This standard does not purport to address all of the
Preplaced-Aggregate Concrete in the Laboratory
safety concerns, if any, associated with its use. It is the C943 Practice for Making Test Cylinders and Prisms for
responsibility of the user of this standard to establish appro-
Determining Strength and Density of Preplaced-
priate safety, health, and environmental practices and deter- Aggregate Concrete in the Laboratory
mine the applicability of regulatory limitations prior to use.
3. Terminology
1.4 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 For definitions of terms used in this test method, refer
Development of International Standards, Guides and Recom-
to Terminologies C125 and C219.
mendations issued by the World Trade Organization Technical
4. Summary of Practice
Barriers to Trade (TBT) Committee.
4.1 Grouts at fluid consistency are prepared from one or
2. Referenced Documents
more mixtures of cement, pozzolan, fine aggregate, grout
2
2.1 ASTM Standards:
fluidifier, with or without other chemical admixtures, and
C125 Terminology Relating to Concrete and Concrete Ag-
water, and tested to determine:
gregates
4.1.1 The properties of the grout, and
C150/C150M Specification for Portland Cement
4.1.2 The properties of PA concrete made with the grout
C185 Test Method for Air Content of Hydraulic Cement
when the grout is intended for such use.
Mortar
4.2 The procedure and equipment required for mixing this
C219 Terminology Relating to Hydraulic Cement
grout are prescribed in this practice.
C618 Specification for Coal Fly Ash and Raw or Calcined
Natural Pozzolan for Use in Concrete
5. Significance and Use
C637 Specification for Aggregates for Radiation-Shielding
5.1 Thispracticeprovidesastandardprocedureforselecting
Concrete
proportionsformixturesofgrouttobeusedatfluidconsistency
C937 Specification for Grout Fluidifier for Preplaced-
in the production of PAconcrete meeting applicable criteria for
Aggregate Concrete
strength, density, and other properties.
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete 5.2 This practice is also useful for determining the compo-
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.41
sitionofgroutmixedatfluidconsistencyandmeetingspecified
on Hydraulic Cement Grouts.
requirements for filling voids, cavities, and spaces in rock,
Current edition approved May 1, 2019. Published May 2019. Originally
foundations, and concrete structures.
approved in 1982. Last previous edition approved in 2016 as C938–16. DOI:
10.1520/C0938-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Apparatus
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Mixer—Use a mixer specified by the manufacturer of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the grout. In absence of manufacturer’s mixer
*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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C938 − 19
recommendation, use the following constructed apparatus as 7.2 Where grout is being proportioned for use on a specific
shown in Fig. 1 (See Note 1). The three mixer blades shall be
...
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: C938 − 16 C938 − 19
Standard Practice for
Proportioning Grout Mixtures for Preplaced-Aggregate
1
Concrete
This standard is issued under the fixed designation C938; 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.
1. 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this The values
given in parentheses after SI units are provided for information only and are not considered 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C150/C150M Specification for Portland Cement
C185 Test Method for Air Content of Hydraulic Cement Mortar
C219 Terminology Relating to Hydraulic Cement
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C637 Specification for Aggregates for Radiation-Shielding Concrete
C937 Specification for Grout Fluidifier for Preplaced-Aggregate Concrete
C939/C939M Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)
C940 Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced-Aggregate Concrete in the Laboratory
C941 Test Method for Water Retentivity of Grout Mixtures for Preplaced-Aggregate Concrete in the Laboratory
C942 Test Method for Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory
C943 Practice for Making Test Cylinders and Prisms for Determining Strength and Density of Preplaced-Aggregate Concrete
in the Laboratory
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 Practice
4.1 Grouts at fluid consistency are prepared from one or more mixtures of cement, pozzolan, fine aggregate, grout fluidifier, with
or without other chemical admixtures, and water, and tested to determine:
4.1.1 The properties of the grout, and
1
This practice 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 Feb. 1, 2016May 1, 2019. Published March 2016May 2019. Originally approved in 1982. Last previous edition approved in 20102016 as
C938–10.–16. DOI: 10.1520/C0938-16.10.1520/C0938-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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 ----------------------
C938 − 19
4.1.2 The properties of PA concrete made with the grout when the grout is intended for such use.
4.2 The procedure and equipment required for mixing this grout are prescribed in this practice.
5. Significance and Use
5.1 This practice provides a standard procedure for selecting proportions for mixtures of grout to be used at fluid consistency
in the production of PA concrete meeting applicable criteria for strength, density, and other properties.
5.2 This practice is also useful for determining the composition of grout mixed at fluid consistency and meeting specified
requirements for filling voids, cavities, and spaces in rock, foundations, and concrete structures.
6. Apparatus
6.1 Mixer, Mixer—constructed
...
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