ASTM C1716/C1716M-12

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Designation:C1716/C1716M −12
StandardSpecification for
Compression Testing Machine Requirements for Concrete
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Masonry Units, Related Units, and Prisms
This standard is issued under the fixed designation C1716/C1716M; 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* 2. Referenced Documents
2
1.1 This specification provides minimum design standards
2.1 ASTM Standards:
for testing machines used to measure the compressive strength C140Test Methods for Sampling and Testing Concrete
of concrete masonry units, related units, and masonry prisms Masonry Units and Related Units
covered under Test Methods C140 and C1314. C1093Practice for Accreditation of Testing Agencies for
Masonry
1.2 The text of this standard references notes and footnotes
C1314Test Method for Compressive Strength of Masonry
which provide explanatory material.These notes and footnotes
Prisms
(excluding those in tables and figures) shall not be considered
E4Practices for Force Verification of Testing Machines
as requirements of this standard.
1.3 This specification shall be used to determine the maxi-
3. Terminology
mum allowable specimen size and the maximum allowable
3.1 Definitions:
load limits on a specific specimen for any test machine. These
3.1.1 bearing, adj—direct contact with the specimen being
limits are based on deflection of the bearing surfaces and the
tested, as in bearing plate, bearing block, and bearing platen.
machine load frame. These limits may not reflect the actual
3.1.2 block, n—steel piece 50 mm [2 in.] thick or greater
capacity of the machine and do not supersede the machine
manufacturer’srecommendedoperationallimits.Theusermust that provides additional load capacity in bending to platens.
determine if testing machine capacities, allowable specimen 3.1.2.1 Discussion—Blocks may be used to accommodate
size and maximum allowable load are appropriate for the testing specimens of various heights in a testing machine.
sample to be tested.
3.1.3 composite, adj—made up of two or more pieces or
materials.
1.4 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3.1.4 load frame, n—all components of the testing machine
each system may not be exact equivalents; therefore, each
that react against forces applied to the test specimen during
system shall be used independently of the other. Combining
testing.
values from the two systems may result in non-conformance
3.1.5 plate, n—steel piece less than 50 mm [2 in.] thick.
with the standard.
3.1.5.1 Discussion—Plates are used to accommodate test
1.5 This standard does not purport to address all of the
specimens of various heights in a testing machine but do not
safety concerns, if any, associated with its use. It is the
provide additional load capacity in bending to platens or
responsibility of the user of this standard to establish appro-
blocks. Plates can also be used as bearing surfaces.
priate safety and health practices and determine the applica-
3.1.6 platen, n—the primary bearing surfaces of the testing
bility of regulatory limitations prior to use.
machine.
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This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
2
C15.04 on Research. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 1, 2012. Published December 2012. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2010. Last previous edition approved in 2011 as C1716/C1716M–11. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C1716_C1716M-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
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C1716/C1716M−12
3.1.6.1 Discussion—Platen is a general term without spe- 4.5.1 Plates, blocks, and platens shall meet requirements of
cific properties implied. In general, the lower platen is semi- 4.9forflatnessandsurfacefinish.Surfacetreatmentsorplating
permanently fixed to the testing machine and the upper platen to reduce corrosion is permitted.
is semi-permanently fixed to a hemispherical thrust bearing. 4.5.2 Spacer Plate—A one piece steel plate, less than 50
mm [2 in.] in thickness and greater than 11.5 mm [0.45 in.] in
3.1.7 spacer, n—plates, blocks, or equipment and fixtures
thickness.Spacerplatesshallnotbeusedindirectcontact
...