ASTM C470/C470M-15

Standard Specification for Molds for Forming Concrete Test Cylinders Vertically

ABSTRACT
This specification deals with molds for forming concrete test cylinders vertically. Molds shall be constructed in the form of right circular cylinders and have a nominal inside height equal to twice the nominal inside diameter. The following are types of molds covered: reusable molds and single-use molds. Reusable molds shall be made of nonabsorptive materials and shall be tested for water leakage. Single-use molds may be made of sheet metal, plastic, suitably treated paper products, or other materials. These materials shall conform to the following requirements: water leakage, absorptivity, and elongation. The following are additional requirements for the types of single-use molds: plastic mold—wall thickness, bottom design, and material; paper molds—side walls, bottom caps, and waterproofing; and sheet metal molds—metal thickness, bottom design, top edge, and coating. Test for elongation, absorption, and water leakage shall also be performed.
SCOPE
1.1 This specification covers molds for use in forming cylindrical concrete specimens. The provisions of this specification include the requirements for both reusable and single-use molds.  
Note 1: Sizes included are molds having diameters from 50 mm [2 in.] to 900 mm [36 in.].  
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units are shown in brackets.  
1.4 The following safety hazards caveat pertains only to the test method described in this specification: 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: 31-Jan-2015
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.61 - Testing for Strength

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: C470/C470M − 15
Standard Specification for
1
Molds for Forming Concrete Test Cylinders Vertically
This standard is issued under the fixed designation C470/C470M; 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* C1077 Practice for Agencies Testing Concrete and Concrete
Aggregates for Use in Construction and Criteria for
1.1 This specification covers molds for use in forming
Testing Agency Evaluation
cylindrical concrete specimens. The provisions of this specifi-
D256 Test Methods for Determining the Izod Pendulum
cation include the requirements for both reusable and single-
Impact Resistance of Plastics
use molds.
D570 Test Method for Water Absorption of Plastics
NOTE 1—Sizes included are molds having diameters from 50 mm [2 in.]
to 900 mm [36 in.].
3. General Requirements
1.2 The text of this standard references notes and footnotes
3.1 The following provisions apply to both reusable and
which provide explanatory material. These notes and footnotes
single-use molds:
(excluding those in tables and figures) shall not be considered
as requirements of the standard. 3.1.1 Molds shall be constructed in the form of right circular
cylinders which stand with the cylindrical axis vertical and the
1.3 The values stated in either SI units or inch-pound units
top open to receive the concrete. They shall be made of
are to be regarded separately as standard. The values stated in
materials that do not react with concrete containing portland or
each system may not be exact equivalents; therefore, each
other hydraulic cements. They shall be watertight and suffi-
system shall be used independently of the other. Combining
ciently strong and tough to permit their use without tearing,
values from the two systems may result in non-conformance
crushing, or deforming.
with the standard. The inch-pound units are shown in brackets.
1.4 The following safety hazards caveat pertains only to the NOTE 2—Reusable lids may be used on molds to reduce moisture loss.
test method described in this specification: This standard does
3.1.2 Molds shall have a nominal inside height equal to
not purport to address all of the safety concerns, if any,
twice the nominal inside diameter. The diameter of a mold,
associated with its use. It is the responsibility of the user of this
consisting of the average of two measurements taken at right
standard to establish appropriate safety and health practices
angles to each other at the top of the mold, shall not differ from
and determine the applicability of regulatory limitations prior
the nominal diameter by more than 1 %. The height, deter-
to use.
mined by averaging two measurements taken 180° apart, shall
not differ from the nominal height by more than 2 %. The
2. Referenced Documents
2 planes of the top rim of the mold and the bottom shall be
2.1 ASTM Standards:
perpendicular to the axis of the mold within 0.5 degrees—
C31/C31M Practice for Making and Curing Concrete Test
1
approximately equivalent to 3 mm in 300 mm [ ⁄8 in. in 12 in.].
Specimens in the Field
No diameter of a mold shall differ from any other diameter of
C33 Specification for Concrete Aggregates
the same mold by more than 2 % except that molds that fail to
C192/C192M Practice for Making and Curing Concrete Test
meet this requirement may be used when the user is able to
Specimens in the Laboratory
demonstrate that no diameter of hardened concrete specimen
produced in a similar mold differs from any other diameter on
1
This specification is under the jurisdiction of ASTM Committee C09 on
the same specimen by more than 2 % (see Note 3).
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee
C09.61 on Testing for Strength.
NOTE 3—Certain single-use molds may require the use of a special
Current edition approved Feb. 1, 2015. Published March 2015. Originally
device such as a tube of heavy-gage metal around the mold during
approved in 1961. Last previous edition approved in 2009 as C470/C470M – 09.
molding to maintain the dimensional tolerances specified in 3.1.2.
DOI: 10.1520/C0470_C0470M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.1.3 The bottom inside surface of the mold shall not depart
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
1
from a plane by more than 2 mm in 150 mm [ ⁄16 in. in 6 in.]
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. (1 % of the diameter of the mold).
*A Summary of
...

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: C470/C470M − 09 C470/C470M − 15
Standard Specification for
1
Molds for Forming Concrete Test Cylinders Vertically
This standard is issued under the fixed designation C470/C470M; 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*
1.1 This specification covers molds for use in forming cylindrical concrete specimens. The provisions of this specification
include the requirements for both reusable and single-use molds.
NOTE 1—Sizes included are molds having diameters from 50 mm [2 in.] to 900 mm [36 in.].
1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard. The inch-pound units are shown in brackets.
1.4 The following safety hazards caveat pertains only to the test method described in this specification: 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C31/C31M Practice for Making and Curing Concrete Test Specimens in the Field
C33 Specification for Concrete Aggregates
C192/C192M Practice for Making and Curing Concrete Test Specimens in the Laboratory
C1077 Practice for Agencies Testing Concrete and Concrete Aggregates for Use in Construction and Criteria for Testing Agency
Evaluation
D256 Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics
D570 Test Method for Water Absorption of Plastics
3. General Requirements
3.1 The following provisions apply to both reusable and single-use molds:
3.1.1 Molds shall be constructed in the form of right circular cylinders which stand with the cylindrical axis vertical and the
top open to receive the concrete. They shall be made of materials that do not react with concrete containing portland or other
hydraulic cements. They shall be watertight and sufficiently strong and tough to permit their use without tearing, crushing, or
deforming.
NOTE 2—Reusable lids may be used on molds to reduce moisture loss.
3.1.2 Molds shall have a nominal inside height equal to twice the nominal inside diameter. The diameter of a mold, consisting
of the average of two measurements taken at right angles to each other at the top of the mold, shall not differ from the nominal
diameter by more than 1 %. The height, determined by averaging two measurements taken 180° apart, shall not differ from the
nominal height by more than 2 %. The planes of the top rim of the mold and the bottom shall be perpendicular to the axis of the
1
mold within 0.5 degrees—approximately equivalent to 3 mm in 300 mm [ ⁄8 in. in 12 in.]. No diameter of a mold shall differ from
1
This specification is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.61 on
Testing for Strength.
Current edition approved Oct. 1, 2009Feb. 1, 2015. Published November 2009March 2015. Originally approved in 1961. Last previous edition approved in 20082009 as
C470/C470M – 08.09. DOI: 10.1520/C0470_C0470M-09.10.1520/C0470_C0470M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
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C470/C470M − 15
any other diameter of the same mold by more than 2 % except that molds that fail to meet
...