ASTM C140-05a

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

SCOPE
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.

General Information

• Status: Historical
• Publication Date: 14-Nov-2005
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.03 - Concrete Masonry Units and Related Units

Relations

• Replaces: ASTM C140-05e1 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
• Effective Date: 15-Nov-2005
• Replaced By: ASTM C140-06 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
• Effective Date: 01-Dec-2006
• Referred By: ASTM C901-18 - Standard Specification for Prefabricated Masonry Panels
• Effective Date: 15-Nov-2005
• Referred By: ASTM C1790-21 - Standard Specification for Fly Ash Facing Brick
• Effective Date: 15-Nov-2005

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C140–05a
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* 3. Terminology
1.1 These test methods cover the sampling and testing of 3.1 Terminology defined in Terminology C 1209, Terminol-
concrete masonry units for dimensions, compressive strength, ogy C 1232, and Terminology E6 shall apply for these test
absorption, unit weight (density), and moisture content. Flex- methods.
ural load testing and ballast weight determination of concrete
4. Sampling
roof pavers are also covered.
4.1 Selection of Test Specimens:
NOTE 1—The testing laboratory performing these test methods should
4.1.1 For purposes of test, full-size concrete masonry units
be evaluated in accordance with Practice C 1093.
shall be selected by the purchaser or authorized representative.
1.2 The values stated in inch-pound units are to be regarded
The selected specimens shall be of similar configuration and
as the standard. The values given in parentheses are for
dimensions. Specimens shall be representative of the whole lot
information only.
of units from which they are selected.
1.3 This standard does not purport to address all of the
4.1.2 The term “lot” refers to any number of concrete
safety concerns, if any, associated with its use. It is the
masonry units of any configuration or dimension manufactured
responsibility of the user of this standard to establish appro-
by the producer using the same materials, concrete mix design,
priate safety and health practices and determine the applica-
manufacturing process, and curing method.
bility of regulatory limitations prior to use.
4.2 Number of Specimens:
4.2.1 For the compressive strength, absorption, unit weight
2. Referenced Documents
(density), and moisture content determinations, six units shall
2.1 ASTM Standards:
beselectedfromeachlotof10 000unitsorfractionthereofand
C90 Specification for Loadbearing Concrete Masonry
12 units from each lot of more than 10 000 and less than
Units
100 000 units. For lots of more than 100 000 units, six units
C 143/C 143M Test Method for Slump of Hydraulic- Ce-
shall be selected from each 50 000 units or fraction thereof
ment Concrete
contained in the lot. Additional specimens shall be taken if
C 1093 Practice for Accreditation of Testing Agencies for
directed by the purchaser.
Unit Masonry
4.3 Identification:
C 1209 Terminology of Concrete Masonry Units and Re-
4.3.1 Mark each specimen so that it may be identified at any
lated Units
time. Markings shall cover not more than 5 % of the superficial
C 1232 Terminology of Masonry
area of the specimen.
C 1552 Practice for Capping Concrete Masonry Units, Re-
4.4 Received Weight:
lated Units, and Masonry Prisms for Compression Testing
4.4.1 Weigh each specimen immediately after sampling and
E4 Practices for Force Verification of Testing Machines
marking, and record as W (received weight). Record time and
r
E6 Terminology Relating to Methods of Mechanical Test-
place W was measured.
r
ing
NOTE 2—Received weights often have direct relationships with other
unit properties and are therefore a useful method of evaluating results or
for sorting purposes. The weight of a concrete masonry unit changes with
1
These test methods are under the jurisdiction of ASTM Committee C15 on
time and exposure conditions, primarily as a result of the moisture within
Manufactured Masonry Units and are the direct responsibility of Subcommittee
the unit. Therefore, to understand the context of a received weight value,
C15.03 on Concrete Masonry Units and Related Units.
it is also important to understand the point in time and the frame of
Current edition approved Nov. 15, 2005. Published December 2005. Originally
e1
approved in 1938. Last previous edition approved in 2005 as C 140 – 05 . reference when that weight was determined. “Time and place” should not
*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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C140–05a
refer to when and where the unit was sampled, but when and where the
capped specimen. The length and width of the steel plate shall
receivedweightsweredetermined.Inadditiontodateandtimereferences, 1
be at least ⁄4 in. (6.3 mm) greater than the length and width of
it is also important to know if
...