ASTM C418-12
(Test Method)Standard Test Method for Abrasion Resistance of Concrete by Sandblasting
Standard Test Method for Abrasion Resistance of Concrete by Sandblasting
SIGNIFICANCE AND USE
4.1 This test method covers the laboratory evaluation of the relative resistance of concrete surfaces to abrasion. This procedure simulates the action of waterborne abrasives and abrasives under traffic on concrete surfaces. It performs a cutting action that tends to abrade more severely the less resistant components of the concrete.
SCOPE
1.1 This test method covers determination of the abrasion resistance characteristics of concrete by subjecting it to the impingement of air-driven silica sand. It is intended for use as a basis for the development of informed judgment.
1.2 The values stated in SI units are to be regarded as the standard. Inch-pound units are shown for information purposes in parentheses.
1.3 This standard does not purport to address 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. Note 1—Users of this test method are advised that there are known safety hazards associated with the use of silica as a blasting media. Consult the silica manufactures MSDS to insure that the latest recommended health and safety practices are being followed. Note 2—Other procedures are available for measuring abrasion resistance of concrete surfaces in addition to subjecting it to air driven silica sand. Consideration should be given to other methods of testing as outlined in ASTM C779/C779M, ASTM C944, and ASTM C1138. The test method most closely representing service conditions should be used.
1.4 The text of this standard references notes and footnotes which are provided as explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.
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Designation: C418 − 12
Standard Test Method for
1
Abrasion Resistance of Concrete by Sandblasting
This standard is issued under the fixed designation C418; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers determination of the abrasion 2.1 ASTM Standards:
resistance characteristics of concrete by subjecting it to the C125 Terminology Relating to Concrete and Concrete Ag-
impingement of air-driven silica sand. It is intended for use as gregates
a basis for the development of informed judgment. C127 Test Method for Relative Density (Specific Gravity)
and Absorption of Coarse Aggregate
1.2 The values stated in SI units are to be regarded as the
C778 Specification for Standard Sand
standard. Inch-pound units are shown for information purposes
C779/C779M Test Method forAbrasion Resistance of Hori-
in parentheses.
zontal Concrete Surfaces
1.3 The text of this standard references notes and footnotes
C944 Test Method for Abrasion Resistance of Concrete or
which are provided as explanatory material. These notes and
Mortar Surfaces by the Rotating-Cutter Method
footnotes (excluding those in tables and figures) shall not be
C1138 Test Method for Abrasion Resistance of Concrete
considered as requirements of this standard.
(Underwater Method)
1.4 This standard does not purport to address the safety
3. Terminology
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and 3.1 For definitions of terms used in this standard, refer to
health practices and determine the applicability of regulatory Terminology C125.
limitations prior to use.
4. Significance and Use
NOTE 1—Users of this test method are advised that there are known
4.1 This test method covers the laboratory evaluation of the
safety hazards associated with the use of silica as a blasting media.
relative resistance of concrete surfaces to abrasion. This
Consult the silica manufactures MSDS to insure that the latest recom-
mended health and safety practices are being followed.
procedure simulates the action of waterborne abrasives and
NOTE 2—Other procedures are available for measuring abrasion resis-
abrasives under traffic on concrete surfaces. It performs a
tance of concrete surfaces in addition to subjecting it to air driven silica
cutting action that tends to abrade more severely the less
sand. Consideration should be given to other methods of testing as
resistant components of the concrete.
outlined in ASTM C779/C779M, ASTM C944, and ASTM C1138. The
test method most closely representing service conditions should be used.
5. Apparatus
1.5 This international standard was developed in accor-
5.1 Scales—The scale shall have a capacity of 5000 g or
dance with internationally recognized principles on standard-
more.Thepermissiblevariationataloadof5000g(11lb)shall
ization established in the Decision on Principles for the
be 6 0.5 g (0.2 oz).
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5.2 Weights—The permissible variations on weights used in
Barriers to Trade (TBT) Committee.
weighing shall be as prescribed in Table 1. The permissible
variations on new weights shall be one half of the values given
in Table 1.
1
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
2
C09.62 on Abrasion Testing. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2012. Published January 2013. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1958. Last previous edition approved in 2005 as C418 – 05. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0418-12. 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 ----------------------
C418 − 12
TABLE 1 Permissible Variations on Weights
mm (0.035 to 0.075 in.). The shield shall have an opening
Permissible Variations on 28.70 6 0.25 mm (1.13 6 0.01 in.) in diameter in the center
Weight, g
Weights in Use, g
(See Note 3).
1000 ±0.50
2
500 ±0.35
NOTE 3—An opening of 28.7 mm (1.13 in.) is equivalent to 6.45 cm (1
2
300 ±0.30
in. ).
...
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: C418 − 05 C418 − 12
Standard Test Method for
1
Abrasion Resistance of Concrete by Sandblasting
This standard is issued under the fixed designation C418; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope Scope*
1.1 This test method covers determination of the abrasion resistance characteristics of concrete by subjecting it to the
impingement of air-driven silica sand. It is intended for use as a basis for the development of informed judgment.
1.2 The values stated in SI units are to be regarded as the standard. Inch-pound units are shown for information purposes in
parentheses.
1.3 This standard does not purport to address 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.
NOTE 1—Users of this test method are advised that there are known safety hazards associated with the use of silica as a blasting media. Consult the
silica manufactures MSDS to insure that the latest recommended health and safety practices are being followed.
NOTE 2—Other procedures are available for measuring abrasion resistance of concrete surfaces in addition to subjecting it to air driven silica sand.
Consideration should be given to other methods of testing as outlined in ASTM C779/C779M, ASTM C944, and ASTM C1138. The test method most
closely representing service conditions should be used.
1.4 The text of this standard references notes and footnotes which are provided as explanatory material. These notes and
footnotes (excluding those in tables and figures) shall not be considered as requirements of this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C127 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate
C778 Specification for Sand
C779/C779M Test Method for Abrasion Resistance of Horizontal Concrete Surfaces
C944 Test Method for Abrasion Resistance of Concrete or Mortar Surfaces by the Rotating-Cutter Method
C1138 Test Method for Abrasion Resistance of Concrete (Underwater Method)
3. Terminology
3.1 For definitions of terms used in this standard, refer to Terminology C125.
4. Significance and Use
4.1 This test method covers the laboratory evaluation of the relative resistance of concrete surfaces to abrasion. This procedure
simulates the action of waterborne abrasives and abrasives under traffic on concrete surfaces. It performs a cutting action that tends
to abrade more severely the less resistant components of the concrete.
5. Apparatus
5.1 Scales—The scale shall have a capacity of 5000 g or more. The permissible variation at a load of 5000 g (11 lb) shall be
6 0.5 g (0.2 oz).
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 of Concrete.
Current edition approved Feb. 1, 2005Dec. 1, 2012. Published February 2005January 2013. Originally approved in 1958. Last previous edition approved in 19982005 as
C418 – 98.C418– 05. DOI: 10.1520/C0418-05.10.1520/C0418-12.
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 ----------------------
C418 − 12
5.2 Weights—The permissible variations on weights used in weighing shall be as prescribed in Table 1. The permissible
variations on new weights shall be one half of the values given in Table 1.
5.3 Sand Blast Apparatus—The sand blast apparatus shall consist of an injector-type gun. The gun shall have a high-velocity
air jet fed by a suitably controlled rate of flow for the abrasive material. The nozzle shown in Fig. 1 shall consist of cold-rolled
bar stock, 40 mm (1.5 in.) long, or hardened too
...
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