ASTM C943-17
(Practice)Standard Practice for Making Test Cylinders and Prisms for Determining Strength and Density of Preplaced-Aggregate Concrete in the Laboratory
Standard Practice for Making Test Cylinders and Prisms for Determining Strength and Density of Preplaced-Aggregate Concrete in the Laboratory
SIGNIFICANCE AND USE
5.1 This practice is used for making test cylinders or prisms of PA concrete. Cylinders are used for determining compressive strength and approximate density. Prisms, cut from cylinders, eliminate the surface effect and thus more accurately represent the actual density of PA concrete in place.
SCOPE
1.1 This practice covers procedures for making standard test cylinders used to determine the compressive strength and density of preplaced-aggregate (PA) concrete.
1.2 The values stated in SI 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, health, and environmental 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.2
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C943 − 17
Standard Practice for
Making Test Cylinders and Prisms for Determining Strength
and Density of Preplaced-Aggregate Concrete in the
1
Laboratory
This standard is issued under the fixed designation C943; 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* C637 Specification for Aggregates for Radiation-Shielding
Concrete
1.1 Thispracticecoversproceduresformakingstandardtest
C937 Specification for Grout Fluidifier for Preplaced-
cylinders used to determine the compressive strength and
Aggregate Concrete
density of preplaced-aggregate (PA) concrete.
C938 Practice for Proportioning Grout Mixtures for
1.2 The values stated in SI units are to be regarded as the
Preplaced-Aggregate Concrete
standard. The values given in parentheses are for information
C939/C939M Test Method for Flow of Grout for Preplaced-
only.
Aggregate Concrete (Flow Cone Method)
1.3 This standard does not purport to address all of the
C940 Test Method for Expansion and Bleeding of Freshly
safety concerns, if any, associated with its use. It is the Mixed Grouts for Preplaced-Aggregate Concrete in the
responsibility of the user of this standard to establish appro-
Laboratory
priate safety, health, and environmental practices and deter-
3. Terminology
mine the applicability of regulatory limitations prior to
use.Warning—Fresh hydraulic cementitious mixtures are
3.1 Definitions:
caustic and may cause chemical burns to skin and tissue upon
3.1.1 For definitions of terms used in this test method, refer
2
prolonged exposure.
to Terminologies C125 and C219.
1.4 This international standard was developed in accor-
4. Summary of Practice
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.1 Coarse aggregate is placed in a standard cylinder mold
Development of International Standards, Guides and Recom-
having end plates to which pipe fittings have been attached.
mendations issued by the World Trade Organization Technical
Grout is pumped into the mold until full. The test cylinder,
Barriers to Trade (TBT) Committee.
demolded after hardening, may be cured and used for deter-
mination of strength or cut into prisms for the determination of
2. Referenced Documents
unit weight.
3
2.1 ASTM Standards:
5. Significance and Use
C125 Terminology Relating to Concrete and Concrete Ag-
gregates
5.1 This practice is used for making test cylinders or prisms
C192/C192M Practice for Making and Curing Concrete Test
of PA concrete. Cylinders are used for determining compres-
Specimens in the Laboratory
sive strength and approximate density. Prisms, cut from
C219 Terminology Relating to Hydraulic Cement
cylinders, eliminate the surface effect and thus more accurately
represent the actual density of PA concrete in place.
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete
6. Apparatus
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.41
on Hydraulic Cement Grouts.
6.1 Cylinder Molds (Fig. 1), cast iron or steel, for making
Current edition approved Dec. 15, 2017. Published January 2018. Originally
150 by 300-mm (6 by 12-in.) cylinders. Base and top plates
approved in 1980. Last previous edition approved in 2010 as C943 – 10. DOI:
shall be arranged for tight assembly to the cylinder.All mating
10.1520/C0943-17.
2
and inside surfaces shall be machined smooth such that the
Section on Safety Precautions, Manual of Aggregate and Concrete Testing,
Annual Book of ASTM Standards, Vol. 04.02.
assembled mold will be essentially watertight. End plates shall
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be drilled and tapped at their centers for standard 19 mm
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
( ⁄4-in.) pipe nipples.The top end plate shall also be perforated,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. as shown in Fig. 2.
*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 ----------------------
C943 − 17
8. Sampling
8.1 Coarse aggregate shall be representative of material
used or to be used in the work or of that tested and stockpiled
for test work.
8.2 Grout to be used in making PA concrete cylinders
...
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: C943 − 10 C943 − 17
Standard Practice for
Making Test Cylinders and Prisms for Determining Strength
and Density of Preplaced-Aggregate Concrete in the
1
Laboratory
This standard is issued under the fixed designation C943; 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*
1.1 This practice covers procedures for making standard test cylinders used to determine the compressive strength and density
of preplaced-aggregate (PA) concrete.
1.2 The values stated in SI 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.Warning—Fresh hydraulic cementitious mixtures are caustic and may cause
2
chemical burns to skin and tissue upon prolonged exposure.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 ASTM Standards:
C125 Terminology Relating to Concrete and Concrete Aggregates
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C219 Terminology Relating to Hydraulic Cement
C637 Specification for Aggregates for Radiation-Shielding Concrete
C937 Specification for Grout Fluidifier for Preplaced-Aggregate Concrete
C938 Practice for Proportioning Grout Mixtures for Preplaced-Aggregate Concrete
C939C939/C939M Test Method for Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)
C940 Test Method for Expansion and Bleeding of Freshly Mixed Grouts for Preplaced-Aggregate Concrete in the Laboratory
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, refer to Terminologies C125 and C219.
4. Summary of Practice
4.1 Coarse aggregate is placed in a standard cylinder mold having end plates to which pipe fittings have been attached. Grout
is pumped into the mold until full. The test cylinder, demolded after hardening, may be cured and used for determination of strength
or cut into prisms for the determination of unit weight.
1
This practice is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.41 on
Hydraulic Cement Grouts.
Current edition approved June 15, 2010Dec. 15, 2017. Published July 2010January 2018. Originally approved in 1980. Last previous edition approved in 20022010 as
C943 – 02.10. DOI: 10.1520/C0943-10.10.1520/C0943-17.
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
1
---------------------- Page: 1 ----------------------
C943 − 17
5. Significance and Use
5.1 This practice is used for making test cylinders or prisms of PA concrete. Cylinders are used for determining compressive
strength and approximate density. Prisms, cut from cylinders, eliminate the surface effect and thus more accurately represent the
actual density of PA concrete in place.
6. Apparatus
6.1 Cylinder Molds (Fig. 1), cast iron or steel, for making 150 by 300-mm (6 by 12-in.) cylinders. Base and top plates shall be
arranged for tight assembly to the cylinder. All mating and inside surfaces shall be machined smooth such that the assembled mold
3
will be essentially watertight. End plates shall be drilled and tapped at their centers for standard 19 mm ( ⁄4-in.) pipe nipples. The
top end plate shall also be perforated, as shown in Fig. 2.
6.2 Venting Fa
...
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