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ASTM C55-01a

(Specification)

Standard Specification for Concrete Brick

Standard Specification for Concrete Brick

SCOPE
1.1 This specification covers concrete brick and similar solid units (see Note 3) intended for use in structural masonry or facing for buildings and other structures, and are made from portland cement, water, and suitable mineral aggregates with or without the inclusion of other materials.
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 inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
Note 1—Concrete brick covered by this specification are made from lightweight or normal weight aggregates, or both.
Note 2—When particular features are desired, such as weight classification, high compressive strength, surface textures for appearance or bond, finish, color, fire resistance, insulation, acoustical properties, or other special features, such properties should be specified separately by the purchaser. Local suppliers should be consulted as to the availability of concrete brick having the desired features.

General Information

Status
Historical
Publication Date
09-Aug-2001
ICS
91.100.30 - Concrete and concrete products
Technical Committee
C15 - Manufactured Masonry Units
Drafting Committee
C15.03 - Concrete Masonry Units and Related Units
Current Stage
Ref Project

Relations

Replaces
ASTM C55-01 - Standard Specification for Concrete Brick
Effective Date
10-Aug-2001
Replaced By
ASTM C55-03 - Standard Specification for Concrete Brick
Effective Date
10-Aug-2003
Referred By
ASTM E2266-22 - Standard Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water Intrusion
Effective Date
10-Aug-2001
Referred By
ASTM C1634-23 - Standard Specification for Concrete Facing Brick and Other Concrete Masonry Facing Units
Effective Date
10-Aug-2001
Referred By
ASTM C1283-15(2021) - Standard Practice for Installing Clay Flue Lining
Effective Date
10-Aug-2001
Referred By
ASTM C946-23 - Standard Practice for Construction of Dry-Stacked, Surface-Bonded Walls
Effective Date
10-Aug-2001
Referred By
ASTM C140/C140M-23 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
Effective Date
10-Aug-2001
Referred By
ASTM C744-21 - Standard Specification for Prefaced Concrete and Calcium Silicate Masonry Units
Effective Date
10-Aug-2001
Referred By
ASTM C1232-21a - Standard Terminology for Masonry
Effective Date
10-Aug-2001

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ASTM C55-01a - Standard Specification for Concrete Brick
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Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 55 – 01a
Standard Specification for
1
Concrete Brick
This standard is issued under the fixed designation C 55; 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.
2
1. Scope * Portland Cement Concrete
4
C 1157 Performance Specification for Hydraulic Cement
1.1 This specification covers concrete brick and similar
C 1209 Terminology of Concrete Masonry Units and Re-
solid units (see Note 3) intended for use in structural masonry
3
lated Units
or facing for buildings and other structures, and are made from
3
C 1232 Terminology of Masonry
portland cement, water, and suitable mineral aggregates with or
without the inclusion of other materials.
3. Terminology
1.2 The text of this standard references notes and footnotes
3.1 Terminology defined in Terminology C 1209 and Ter-
which provide explanatory material. These notes and footnotes
minology C 1232 shall apply for this specification.
(excluding those in tables and figures) shall not be considered
as requirements of the standard.
4. Classification
1.3 The values stated in inch-pound units are to be regarded
4.1 Grades—Concrete brick manufactured in accordance
as the standard. The values given in parentheses are for
with this specification shall conform to two grades as follows:
information only.
4.1.1 Grade N—For use as architectural veneer and facing
NOTE 1—Concrete brick covered by this specification are made from
units in exterior walls and for use where high strength and
lightweight or normal weight aggregates, or both.
resistance to moisture penetration and severe frost action are
NOTE 2—When particular features are desired, such as weight classifi-
desired.
cation, high compressive strength, surface textures for appearance or
4.1.2 Grade S—For general use where moderate strength
bond, finish, color, fire resistance, insulation, acoustical properties, or
and resistance to frost action and moisture penetration are
other special features, such properties should be specified separately by
the purchaser. Local suppliers should be consulted as to the availability of required.
concrete brick having the desired features.
NOTE 3—The requirements for Grades N and S concrete brick are also
applicable to solid concrete veneer and facing units larger than brick size,
2. Referenced Documents
such as split block.
2.1 ASTM Standards:
2
C 33 Specification for Concrete Aggregates 5. Materials and Manufacture
C 140 Test Methods for Sampling and Testing Concrete
5.1 Cementitious Materials—Materials shall conform to the
3
Masonry Units and Related Units
following applicable specifications:
4
C 150 Specification for Portland Cement
5.1.1 Portland Cement—Specification C 150.
C 207 Specification for Hydrated Lime for Masonry Pur-
5.1.2 Blended Hydraulic Cements—Specification C 595.
4
poses
5.1.3 Hydraulic Cement—Specification C 1157.
C 331 Specification for Lightweight Aggregates for Con-
5.1.4 Hydrated Lime, Type S—Specification C 207.
2
crete Masonry Units
5.1.5 Pozzolans—Specification C 618.
C 426 Test Method for Drying Shrinkage of Concrete Ma-
5.2 Aggregates—Aggregates shall conform to the following
3
sonry Units
specifications, except that grading requirements shall not
4
C 595 Specification for Blended Hydraulic Cements
necessarily apply:
C 618 Specification for Coal Fly Ash and Raw or Calcined
5.2.1 Normal Weight Aggregates—Specification C 33.
Natural Pozzolan for Use as a Mineral Admixture in
5.2.2 Lightweight Aggregates—Specification C 331.
5.3 Other Constituents—Air-entraining agents, coloring
1
pigments, integral water repellents, finely ground silica, and
This specification is under the jurisdiction of ASTM Committee C15 on
Manufactured Masonry Units and is the direct responsibility of Subcommittee
other constituents shall be previously established as suitable for
C15.03 on Concrete Masonry Units and Related Units.
use in concrete masonry units and shall conform to applicable
Current edition approved Aug. 10, 2001. Published October 2001. Originally
ASTM standards or shall be shown by test or experience not to
published as C 55–24T. Last previous edition C 55–01.
2
Annual Book of ASTM Standards, Vol 04.02. be detrimental to the durability of the concrete masonry units
3
Annual Book of ASTM Standards, Vol 04.05.
or any material customarily used in masonry construction.
4
Annual Book of ASTM Standards, Vol 04.01.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

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4.1 This practice provides for using an unbonded capping system in testing hardened concrete cylinders made in accordance with Practices C31/C31M or C192/C192M, or cores obtained in accordance with Test Method C42/C42M in lieu of the capping systems described in Practice C617/C617M.  
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1.1 This practice covers requirements for a capping system using unbonded caps for testing concrete cylinders molded in accordance with Practice C31/C31M or C192/C192M, or cores obtained in accordance with Test Method C42/C42M. Unbonded neoprene caps of a defined hardness are permitted to be used for testing for a specified maximum number of reuses without qualification testing up to a certain concrete compressive strength level. Above that strength, level neoprene caps will require qualification testing. Qualification testing is required for all elastomeric materials other than neoprene regardless of the concrete strength.  
1.2 Unbonded caps are not to be used for acceptance testing of concrete with compressive strength below 10 MPa [1500 psi ] or above 80 MPa [12 000 psi].  
1.3 The text of this standard refers to notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 Units—The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Combining values from the two systems may result in non-conformance with the standard.  
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1.6 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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ASTM C873/C873M-23(Test Method)
Standard Test Method for Compressive Strength of Concrete Cylinders Cast in Place in Cylindrical Molds

ABSTRACT
This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. A concrete cylinder mold assembly consisting of a mold and a tubular support member is fastened within the concrete formwork prior to placement of the concrete. The elevation of the mold upper edge is adjusted to correspond to the plane of the finished slab surface. The mold support prevents direct contact of the slab concrete with the outside of the mold and permits its easy removal from the hardened concrete. Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection. Consolidation of concrete in the mold may be varied to simulate the conditions of placement. Internal vibration of concrete in the mold is prohibited except under special circumstances.
SIGNIFICANCE AND USE
4.1 Cast-in-place cylinder strength relates to the strength of concrete in the structure due to the similarity of curing conditions because the cylinder is cured within the slab. However, due to differences in moisture condition, degree of consolidation, specimen size, and length-diameter ratio, there is not a unique relationship between the strength of cast-in-place cylinders and cores of the same age. When cores can be drilled undamaged and tested in the same moisture condition as the cast-in-place cylinders, the strength of the cylinders can be expected to be on average 10 % higher than the cores at ages up to 91 days for specimens of the same size and length-diameter ratio.4  
4.2 Strength of cast-in-place cylinders may be used for various purposes, such as estimating the load-bearing capacity of slabs, determining the time of form and shore removal, and determining the effectiveness of curing and protection.
SCOPE
1.1 This test method covers the determination of strength of cylindrical concrete specimens that have been molded in place using special molds attached to formwork. This test method is limited to use in slabs where the depth of concrete is from 125 mm to 300 mm [5 in. to 12 in.].  
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