ASTM C928/C928M-20a

Standard Specification for Packaged, Dry, Rapid-Hardening Cementitious Materials for Concrete Repairs

ABSTRACT
This specification covers packaged, dry, cementitious mortar or concrete materials for rapid repairs to hardened hydraulic-cement concrete pavements and structures. Materials that contain organic compounds, such as bitumens, epoxy resins, and polyesters, as the principal binder are not included. Packaged, dry, concrete material contains aggregate of which at least 5% by mass of the total mixture is retained. Packaged, dry, mortar material contains aggregate of which less than 5% by mass of the total mixture is retained. Aqueous solutions, aqueous emulsions or dispersions may be included as components of the packaged materials. Aggregates must be included as a component of the packaged materials. Both packaged dry concrete and mortar shall be mechanically mixed with the use of a mixing liquid. Different test methods shall be performed in order to determine the following properties: compressive strength, length change, scaling resistance, and slant shear bond strength.
SCOPE
1.1 This specification covers packaged, dry, cementitious mortar or concrete materials for rapid repairs to hardened hydraulic-cement concrete pavements and structures. Materials that contain organic compounds, such as bitumens, epoxy resins, and polymers, as the principal binder are not included.  
1.1.1 Packaged, dry, concrete material contains aggregate of which at least 5 % by mass of the total mixture is retained on a 9.5-mm [3/8-in.] sieve.  
1.1.2 Packaged, dry, mortar material contains aggregate of which less than 5 % by mass of the total mixture is retained on a 9.5-mm [3/8-in.] sieve.  
1.2 Aqueous solutions, aqueous emulsions or dispersions may be included as components of the packaged materials. The manufacturer may specify that these liquids are to replace some or all of the mixing water.  
1.3 Aggregates must be included as a component of the packaged materials. The manufacturer may recommend job site addition of specific amounts and types of additional aggregates to his product for some uses. However, such reformulated products are not within the scope of this specification.  
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.5 The following safety hazards caveat pertains to the test methods portion of this specification:  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.  
1.6 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.

General Information

• Status: Published
• Publication Date: 31-Aug-2020
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.43 - Packaged Dry Combined Materials

Standards Content (Sample)

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:C928/C928M −20a
Standard Specification for
Packaged, Dry, Rapid-Hardening Cementitious Materials for
1
Concrete Repairs
This standard is issued under the fixed designation C928/C928M; 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* 1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This specification covers packaged, dry, cementitious
ization established in the Decision on Principles for the
mortar or concrete materials for rapid repairs to hardened
Development of International Standards, Guides and Recom-
hydraulic-cement concrete pavements and structures. Materials
mendations issued by the World Trade Organization Technical
that contain organic compounds, such as bitumens, epoxy
Barriers to Trade (TBT) Committee.
resins, and polymers, as the principal binder are not included.
1.1.1 Packaged, dry, concrete material contains aggregate of
2. Referenced Documents
which at least5%by mass of the total mixture is retained on
2
3
a 9.5-mm [ ⁄8-in.] sieve. 2.1 ASTM Standards:
1.1.2 Packaged, dry, mortar material contains aggregate of C39/C39M Test Method for Compressive Strength of Cylin-
which less than5%by mass of the total mixture is retained on drical Concrete Specimens
3
a 9.5-mm [ ⁄8-in.] sieve. C78 Test Method for Flexural Strength of Concrete (Using
Simple Beam with Third-Point Loading)
1.2 Aqueous solutions, aqueous emulsions or dispersions
C109/C109M Test Method for Compressive Strength of
may be included as components of the packaged materials.The
Hydraulic Cement Mortars (Using 2-in. or [50 mm] Cube
manufacturermayspecifythattheseliquidsaretoreplacesome
Specimens)
or all of the mixing water.
C125 Terminology Relating to Concrete and Concrete Ag-
1.3 Aggregates must be included as a component of the
gregates
packaged materials. The manufacturer may recommend job
C143/C143M Test Method for Slump of Hydraulic-Cement
site addition of specific amounts and types of additional
Concrete
aggregates to his product for some uses. However, such
C157/C157M Test Method for Length Change of Hardened
reformulated products are not within the scope of this specifi-
Hydraulic-Cement Mortar and Concrete
cation.
C192/C192M Practice for Making and Curing Concrete Test
1.4 The values stated in either SI units or inch-pound units Specimens in the Laboratory
C403/C403M Test Method for Time of Setting of Concrete
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each Mixtures by Penetration Resistance
C490/C490M Practice for Use of Apparatus for the Deter-
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance mination of Length Change of Hardened Cement Paste,
Mortar, and Concrete
with the standard.
C494/C494M Specification for Chemical Admixtures for
1.5 The following safety hazards caveat pertains to the test
Concrete
methods portion of this specification: This standard does not
C666/C666M Test Method for Resistance of Concrete to
purport to address all of the safety concerns, if any, associated
Rapid Freezing and Thawing
with its use. It is the responsibility of the user of this standard
C670 Practice for Preparing Precision and Bias Statements
to establish appropriate safety, health, and environmental
for Test Methods for Construction Materials
practices and determine the applicability of regulatory limita-
C672/C672M Test Method for Scaling Resistance of Con-
tions prior to use.
crete Surfaces Exposed to Deicing Chemicals
1
This specification is under the jurisdiction of ASTM Committee C09 on
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
2
C09.43 on Packaged Dry Combined Materials. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2020. Published October 2020. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1980. Last previous edition approved in 2020 as C928/C928M – 20. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C0928_C0928M-20A. 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

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...

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: C928/C928M − 20 C928/C928M − 20a
Standard Specification for
Packaged, Dry, Rapid-Hardening Cementitious Materials for
1
Concrete Repairs
This standard is issued under the fixed designation C928/C928M; 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 specification covers packaged, dry, cementitious mortar or concrete materials for rapid repairs to hardened hydraulic-
cement concrete pavements and structures. Materials that contain organic compounds, such as bitumens, epoxy resins, and
polymers, as the principal binder are not included.
1.1.1 Packaged, dry, concrete material contains aggregate of which at least 5 % by mass of the total mixture is retained on a
3
9.5-mm [ ⁄8-in.] sieve.
1.1.2 Packaged, dry, mortar material contains aggregate of which less than 5 % by mass of the total mixture is retained on a
3
9.5-mm [ ⁄8-in.] sieve.
1.2 Aqueous solutions, aqueous emulsions or dispersions may be included as components of the packaged materials. The
manufacturer may specify that these liquids are to replace some or all of the mixing water.
1.3 Aggregates must be included as a component of the packaged materials. The manufacturer may recommend job site addition
of specific amounts and types of additional aggregates to his product for some uses. However, such reformulated products are not
within the scope of this specification.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.5 The following safety hazards caveat pertains to the test methods portion of this specification: 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.
1.6 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.
1
This specification is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.43 on
Packaged Dry Combined Materials.
Current edition approved Jan. 1, 2020Sept. 1, 2020. Published January 2020October 2020. Originally approved in 1980. Last previous edition approved in 20192020 as
C928/C928M – 19.C928/C928M – 20. DOI: 10.1520/C0928_C0928M-20.10.1520/C0928_C0928M-20A.
*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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C928/C928M − 20a
2. Referenced Documents
2
2.1 ASTM Standards:
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C78 Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
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
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C403/C403M Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
C490/C490M Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and
Concrete
C494/C494M Specification for Chemical Admixtures for Concrete
C666/C666M Test Method for Resistance of Concrete to Rapid Freezing and Thawing
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C672/C672M Test Method for Scaling Resistance of Concrete Surfaces Exposed to Deicing Chemic
...