ASTM C779/C779M-12
(Test Method)Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces
Standard Test Method for Abrasion Resistance of Horizontal Concrete Surfaces
SIGNIFICANCE AND USE
4.1 The three test methods provide simulated abrasion conditions, which can be used to evaluate the effects on abrasion resistance of concrete, concrete materials, and curing or finishing procedures. They may also be used for quality acceptance of products and surface exposed to wear. They are not intended to provide a quantitative measurement of length of service.
4.2 The equipment used by each of these procedures is portable and thus suitable for either laboratory or field testing. The three procedures determine the relative wear of concrete surfaces as follows:
4.2.1 Procedure A—The revolving-disk machine operates by sliding and scuffing of steel disks in conjunction with abrasive grit.
4.2.2 Procedure B—The dressing-wheel machine operates by impact and sliding friction of steel dressing wheels.
4.2.3 Procedure C—The ball-bearing machine operates by high-contact stresses, impact, and sliding friction from steel balls.Note 2—Diagrams of three machines meeting these specifications are shown in Fig. 1, Fig. 2, and Fig. 3.4
FIG. 1 Revolving Disks Abrasion Test Machine
FIG. 2 Dressing Wheel Abrasion Test Machine
FIG. 3 Ball Bearing Abrasion Test MachinePROCEDURE A—REVOLVING DISKS
SCOPE
1.1 This test method covers three procedures for determining the relative abrasion resistance of horizontal concrete surfaces. The procedures differ in the type and degree of abrasive force they impart, and are intended for use in determining variations in surface properties of concrete affected by mixture proportions, finishing, and surface treatment. They are not intended to provide a quantitative measurement of the length of service that may be expected from a specific surface.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of each other.
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 and health practices and determine the applicability of regulatory limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and tissue upon prolonged exposure.)2Note 1—Other procedures are available for measuring the abrasion resistance of concrete surfaces in addition to the three procedures contained in this test method. Consideration should be given to Test Methods C944 and C418. The test method most closely representing service conditions should be used.
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Designation: C779/C779M − 12
Standard Test Method for
1
Abrasion Resistance of Horizontal Concrete Surfaces
This standard is issued under the fixed designation C779/C779M; 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* C418 Test Method for Abrasion Resistance of Concrete by
Sandblasting
1.1 This test method covers three procedures for determin-
C670 Practice for Preparing Precision and Bias Statements
ing the relative abrasion resistance of horizontal concrete
for Test Methods for Construction Materials
surfaces. The procedures differ in the type and degree of
C944 Test Method for Abrasion Resistance of Concrete or
abrasive force they impart, and are intended for use in
Mortar Surfaces by the Rotating-Cutter Method
determining variations in surface properties of concrete af-
fected by mixture proportions, finishing, and surface treatment.
Theyarenotintendedtoprovideaquantitativemeasurementof 3. Terminology
the length of service that may be expected from a specific
3.1 For definitions of terms used in this standard, refer to
surface.
Terminology C125.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text, the
4. Significance and Use
inch-pound units are shown in brackets. The values stated in
each system may not be exact equivalents; therefore, each 4.1 The three test methods provide simulated abrasion
system shall be used independently of each other. conditions, which can be used to evaluate the effects on
abrasion resistance of concrete, concrete materials, and curing
1.3 This standard does not purport to address all of the
or finishing procedures. They may also be used for quality
safety concerns, if any, associated with its use. It is the
acceptance of products and surface exposed to wear. They are
responsibility of the user of this standard to establish appro-
notintendedtoprovideaquantitativemeasurementoflengthof
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. (Warning—Fresh service.
hydraulic cementitious mixtures are caustic and may cause
4.2 The equipment used by each of these procedures is
2
chemical burns to skin and tissue upon prolonged exposure. )
portable and thus suitable for either laboratory or field testing.
NOTE 1—Other procedures are available for measuring the abrasion
The three procedures determine the relative wear of concrete
resistance of concrete surfaces in addition to the three procedures
surfaces as follows:
contained in this test method. Consideration should be given to Test
Methods C944 and C418. The test method most closely representing 4.2.1 Procedure A—The revolving-disk machine operates
service conditions should be used.
by sliding and scuffing of steel disks in conjunction with
abrasive grit.
2. Referenced Documents
4.2.2 Procedure B—The dressing-wheel machine operates
3
2.1 ASTM Standards:
by impact and sliding friction of steel dressing wheels.
C125 Terminology Relating to Concrete and Concrete Ag-
4.2.3 Procedure C—The ball-bearing machine operates by
gregates
high-contact stresses, impact, and sliding friction from steel
balls.
1
This test method is under the jurisdiction of ASTM Committee C09 on
NOTE 2—Diagrams of three machines meeting these specifications are
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
4
shown in Fig. 1, Fig. 2, and Fig. 3.
C09.62 on Abrasion Testing.
Current edition approved Dec. 1, 2012. Published December 2012. Originally
approved in 1974. Last previous edition approved in 2010 as C779 – 05 (2010).
DOI: 10.1520/C0779_C0779M-12.
2 4
Section on Safety Precautions, Manual of Aggregate and Concrete Testing, The sole source of supply of these machines known to the committee at this
Annual Book of ASTM Standards, Vol 04.02. time isWhite Machine Co., 9591YorkAlpha Dr., North Royalton, OH 44133; Spirit
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Fabricating, Ltd., 9260 Valley View Rd., Macedonia, OH 44056. If you are aware
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM of alternative suppliers, please provide this information to ASTM International
Standards volume information, refer to the standard’s Document Summary page on Headquarters.Your comments will receive careful consideration at a meeting of the
1
the ASTM website. responsible technical committee, which you may attend.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshoh
...
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: C779/C779M − 05 (Reapproved 2010) C779/C779M − 12
Standard Test Method for
1
Abrasion Resistance of Horizontal Concrete Surfaces
This standard is issued under the fixed designation C779/C779M; 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 Scope*
1.1 This test method covers three procedures for determining the relative abrasion resistance of horizontal concrete surfaces.
The procedures differ in the type and degree of abrasive force they impart, and are intended for use in determining variations in
surface properties of concrete affected by mixture proportions, finishing, and surface treatment. They are not intended to provide
a quantitative measurement of the length of service that may be expected from a specific surface.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the
inch-pound units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall
be used independently of each other.
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 and health practices and determine the applicability of regulatory
limitations prior to use. (Warning—Fresh hydraulic cementitious mixtures are caustic and may cause chemical burns to skin and
2
tissue upon prolonged exposure.)
NOTE 1—Other procedures are available for measuring the abrasion resistance of concrete surfaces in addition to the three procedures contained in this
test method. Consideration should be given to Test Methods C944 and C418. The test method most closely representing service conditions should be used.
2. Referenced Documents
3
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C418 Test Method for Abrasion Resistance of Concrete by Sandblasting
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
C944 Test Method for Abrasion Resistance of Concrete or Mortar Surfaces by the Rotating-Cutter Method
3. Terminology
3.1 For definitions of terms used in this standard, refer to Terminology C125.
4. Significance and Use
4.1 The three test methods provide simulated abrasion conditions, which can be used to evaluate the effects on abrasion
resistance of concrete, concrete materials, and curing or finishing procedures. They may also be used for quality acceptance of
products and surface exposed to wear. They are not intended to provide a quantitative measurement of length of service.
4.2 The equipment used by each of these procedures is portable and thus suitable for either laboratory or field testing. The three
procedures determine the relative wear of concrete surfaces as follows:
4.2.1 Procedure A—The revolving-disk machine operates by sliding and scuffing of steel disks in conjunction with abrasive grit.
4.2.2 Procedure B—The dressing-wheel machine operates by impact and sliding friction of steel dressing wheels.
4.2.3 Procedure C—The ball-bearing machine operates by high-contact stresses, impact, and sliding friction from steel balls.
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee C09.62 on
Abrasion Testing.
Current edition approved Oct. 1, 2010Dec. 1, 2012. Published December 2010December 2012. Originally approved in 1974. Last previous edition approved in 20052010
as C779 – 05.C779 – 05(2010). DOI: 10.1520/C0779_C0779M-05(2010).10.1520/C0779_C0779M-12.
2
Section on Safety Precautions, Manual of Aggregate and Concrete Testing,Annual Book of ASTM Standards, Vol. 04.02.
3
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
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C779/C779M − 12
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NOTE 2—Diagrams of three machines meeting these sp
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