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ASTM C55-03

(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-2003
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 C55-01a - Standard Specification for Concrete Brick
Effective Date
10-Aug-2003
Replaced By
ASTM C55-06 - Standard Specification for Concrete Building Brick
Effective Date
15-Dec-2006
Referred By
ASTM C1232-21a - Standard Terminology for Masonry
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-2003
Referred By
ASTM C946-23 - Standard Practice for Construction of Dry-Stacked, Surface-Bonded Walls
Effective Date
10-Aug-2003
Referred By
ASTM C140/C140M-23 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
Effective Date
10-Aug-2003
Referred By
ASTM C744-21 - Standard Specification for Prefaced Concrete and Calcium Silicate Masonry Units
Effective Date
10-Aug-2003
Referred By
ASTM C1283-15(2021) - Standard Practice for Installing Clay Flue Lining
Effective Date
10-Aug-2003
Referred By
ASTM C1634-23 - Standard Specification for Concrete Facing Brick and Other Concrete Masonry Facing Units
Effective Date
10-Aug-2003

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ASTM C55-03 - Standard Specification for Concrete BrickASTM C55-03 - Standard Specification for Concrete Brick
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ASTM C55-03 - Standard Specification for Concrete Brick
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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: C 55 – 03
Standard Specification for
1
Concrete Brick
ThisstandardisissuedunderthefixeddesignationC 55;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
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* C 618 Specification for Coal Fly Ash and Raw or Calcined
Natural Pozzolan for Use as a Mineral Admixture in
1.1 This specification covers concrete brick and similar
2
Portland Cement Concrete
solid units (see Note 3) intended for use in structural masonry
C 989 Specification for Ground Granulated Blast Furnace
or facing for buildings and other structures, and are made from
2
Slag for Use in Concrete and Mortars
portlandcement,water,andsuitablemineralaggregateswithor
4
C 1157 Performance Specification for Hydraulic Cement
without the inclusion of other materials.
C 1209 Terminology of Concrete Masonry Units and Re-
1.2 The text of this standard references notes and footnotes
3
lated Units
which provide explanatory material. These notes and footnotes
3
C 1232 Terminology of Masonry
(excluding those in tables and figures) shall not be considered
as requirements of the standard.
3. Terminology
1.3 The values stated in inch-pound units are to be regarded
3.1 Terminology defined in Terminology C 1209 and Ter-
as the standard. The values given in parentheses are for
minology C 1232 shall apply for this specification.
information only.
NOTE 1—Concrete brick covered by this specification are made from 4. Classification
lightweight or normal weight aggregates, or both.
4.1 Grades—Concrete brick manufactured in accordance
NOTE 2—When particular features are desired, such as weight classifi-
with this specification shall conform to two grades as follows:
cation, high compressive strength, surface textures for appearance or
4.1.1 Grade N—For use as architectural veneer and facing
bond, finish, color, fire resistance, insulation, acoustical properties, or
units in exterior walls and for use where high strength and
other special features, such properties should be specified separately by
the purchaser. Local suppliers should be consulted as to the availability of resistance to moisture penetration and severe frost action are
concrete brick having the desired features.
desired.
4.1.2 Grade S—For general use where moderate strength
2. Referenced Documents
and resistance to frost action and moisture penetration are
2.1 ASTM Standards:
required.
2
C33 Specification for Concrete Aggregates
NOTE 3—The requirements for Grades N and S concrete brick are also
C 140 Test Methods for Sampling and Testing Concrete
applicable to solid concrete veneer and facing units larger than brick size,
3
Masonry Units and Related Units
such as split block.
4
C 150 Specification for Portland Cement
C 207 Specification for Hydrated Lime for Masonry Pur- 5. Materials and Manufacture
4
poses
5.1 Cementitious Materials—Materials shall conform to the
C 331 Specification for Lightweight Aggregates for Con-
following applicable specifications:
2
crete Masonry Units
5.1.1 Portland Cement—Specification C 150.
C 426 Test Method for Drying Shrinkage of Concrete Ma-
5.1.2 Blended Hydraulic Cements—Specification C 595.
3
sonry Units
5.1.3 Hydraulic Cement—Specification C 1157.
4
C 595 Specification for Blended Hydraulic Cements
5.1.4 Hydrated Lime, Type S—Specification C 207.
5.1.5 Ground Granulated Blast Furnace Slag—
Specification C 989.
1
This specification is under the jurisdiction of ASTM Committee C15 on
5.1.6 Pozzolans—Specification C 618.
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units. 5.2 Aggregates—Aggregates shall conform to the following
Current edition approved Aug. 10, 2003. Published September 2003. Originally
specifications, except that grading requirements shall not
approved in 1924. Last previous edition approved in 2001 as C 55–01a.
necessarily apply:
2
Annual Book of ASTM Standards, Vol 04.02.
3
5.2.1 Normal Weight Aggregates—SpecificationC33.
Annual Book of ASTM Standards, Vol 04.05.
4
Annual Book of ASTM Standards, Vol 04.01.
*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 ----------------------
C55–03
5.2.2 Lightweight Aggregates—Specification C 331. cracks not otherwise permitted or other imperfections when
5.3 Other Constituents—Air-entraining agents, coloring viewed from a distance of not less than 20 ft (6.1 m) under
pigments, integral water repellents, finely ground sil
...

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4.1 Alkali-silica reaction is a chemical interaction between some siliceous constituents of concrete aggregates and hydroxyl ions (1).5 The concentration of hydroxyl ion within the concrete is predominantly controlled by the concentration of sodium and potassium (2).  
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1.2 The values stated in either SI units or inch-pound units are to be regarded separately as the 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.
Note 1: Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.  
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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.  
1.5 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—Concrete specimens tested with unbonded caps rupture more violently than comparable specimens tested with bonded caps. The safety precautions given in the Manual of Aggregate and Concrete Testing are recommended.2)  
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.].  
1.2 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.  
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1.5 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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