Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units

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1.1 These test methods cover the sampling and testing of concrete masonry units for dimensions, compressive strength, absorption, unit weight (density), and moisture content. Flexural load testing and ballast weight determination of concrete roof pavers are also covered.
Note 1—The testing laboratory performing these test methods should be evaluated in accordance with Practice C 1093.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.

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ASTM C140-03 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
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Designation:C140–03
Standard Test Methods for
Sampling and Testing Concrete Masonry Units and Related
1
Units
This standard is issued under the fixed designation C 140; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* E 6 Terminology Relating to Methods of Mechanical Test-
4
ing
1.1 These test methods cover the sampling and testing of
concrete masonry units for dimensions, compressive strength,
3. Terminology
absorption, unit weight (density), and moisture content. Flex-
3.1 Terminology defined in Terminology C 1209, Terminol-
ural load testing and ballast weight determination of concrete
ogy C 1232, and Terminology E 6 shall apply for these test
roof pavers are also covered.
methods.
NOTE 1—The testing laboratory performing these test methods should
be evaluated in accordance with Practice C 1093.
4. Sampling
1.2 The values stated in inch-pound units are to be regarded 4.1 Selection of Test Specimens:
as the standard. The values given in parentheses are for
4.1.1 For purposes of test, full-size concrete masonry units
information only. shall be selected by the purchaser or authorized representative.
1.3 This standard does not purport to address all of the
The selected specimens shall be of similar configuration and
safety concerns, if any, associated with its use. It is the dimensions. Specimens shall be representative of the whole lot
responsibility of the user of this standard to establish appro-
of units from which they are selected.
priate safety and health practices and determine the applica- 4.1.2 The term “lot” refers to any number of concrete
bility of regulatory limitations prior to use.
masonry units of any configuration or dimension manufactured
by the producer using the same materials, concrete mix design,
2. Referenced Documents
manufacturing process, and curing method.
2.1 ASTM Standards:
4.2 Number of Specimens:
C 90 Specification for Loadbearing Concrete Masonry
4.2.1 For the compressive strength, absorption, unit weight
2
Units
(density), and moisture content determinations, six units shall
C 143 Test Method for Slump of Hydraulic- Cement Con-
beselectedfromeachlotof10 000unitsorfractionthereofand
3
crete
12 units from each lot of more than 10 000 and less than
C 1093 Practice for Accreditation of Testing Agencies for
100 000 units. For lots of more than 100 000 units, six units
2
Unit Masonry
shall be selected from each 50 000 units or fraction thereof
C 1209 Terminology of Concrete Masonry Units and Re-
contained in the lot. Additional specimens shall be taken if
2
lated Units
directed by the purchaser.
2
C 1232 Terminology of Masonry
4.3 Identification:
C 1552 Practice for Capping Concrete Masonry Units, Re-
4.3.1 Mark each specimen so that it may be identified at any
2
lated Units and Masonry Prisms for Compression Testing
time. Markings shall cover not more than 5 % of the superficial
4
E 4 Practices for Force Verification of Testing Machines
area of the specimen.
4.3.2 Weigh units for moisture content tests immediately
after sampling and marking and record as W (received
r
weight).
1
These test methods are under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and are the direct responsibility of Subcommittee
5. Measurement of Dimensions
C15.03 on Concrete Masonry Units and Related Units.
Current edition approved August 10, 2003. Published October 2003. Originally
5.1 Apparatus:
approved in 1938. Last previous edition approved in 2002 as C 140 – 02b.
5.1.1 Measure overall dimensions with a steel scale having
2
Annual Book of ASTM Standards, Vol 04.05.
1
3
divisions not greater than ⁄10-in. (2.5-mm). Face shell and web
Annual Book of ASTM Standards, Vol 04.02.
4
Annual Book of ASTM Standards, Vol 03.01. thicknesses shall be measured with a caliper rule having
*ASummary 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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C140–03
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of this effect is controlled by the stiffness of the plate, the size of the
divisions not greater than ⁄100-in. (0.25-mm) and having
1 specimen tested, and the strength of the specimen. Tested compressive
parallel jaws not less than ⁄2 in. (12.7 mm) nor more than 1 in.
strengths will typically increase with increased plate thickness and with
(25.4 mm) in length.
reduced distance to the furthest corner of the specimen. Some testing
5.2 Specimens—Three full-size units shall
...

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