ASTM C129-14a
(Specification)Standard Specification for Nonloadbearing Concrete Masonry Units
Standard Specification for Nonloadbearing Concrete Masonry Units
ABSTRACT
This specification covers hollow and solid nonloadbearing concrete masonry units made from Portland cement, water, and mineral aggregates with or without the inclusion of other materials. These units are intended for use in nonloadbearing partitions, but under certain conditions they may be suitable for use in nonloadbearing exterior walls above grade where effectively protected from the weather. Concrete masonry units manufactured under this specification shall conform to the specified density classifications and compressive strength requirements.
SCOPE
1.1 This specification covers hollow and solid nonloadbearing concrete masonry units made from portland cement, water, and mineral aggregates with or without the inclusion of other materials. These units are intended for use in nonloadbearing partitions, but under certain conditions they may be suitable for use in nonloadbearing exterior walls above grade where effectively protected from the weather.
1.2 The text of this standard references 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.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1: Concrete masonry units covered by this specification are made from lightweight or normal weight aggregates, or both.
Note 2: When particular features are desired, such as density classification, surface texture for appearance or bond, finish, color, fire resistance, insulation, acoustical properties, or other special features, such properties should be specified separately by the purchaser. However, suppliers should be consulted as to the availability of units having the desired features.
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Designation:C129 −14a
Standard Specification for
Nonloadbearing Concrete Masonry Units
This standard is issued under the fixed designation C129; 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* C331 Specification for LightweightAggregates for Concrete
Masonry Units
1.1 This specification covers hollow and solid nonloadbear-
C426 Test Method for Linear Drying Shrinkage of Concrete
ing concrete masonry units made from portland cement, water,
Masonry Units
and mineral aggregates with or without the inclusion of other
C595 Specification for Blended Hydraulic Cements
materials. These units are intended for use in nonloadbearing
C618 Specification for Coal Fly Ash and Raw or Calcined
partitions,butundercertainconditionstheymaybesuitablefor
Natural Pozzolan for Use in Concrete
use in nonloadbearing exterior walls above grade where
C989 Specification for Slag Cement for Use in Concrete and
effectively protected from the weather.
Mortars
1.2 The text of this standard references notes and footnotes
C1157 Performance Specification for Hydraulic Cement
that provide explanatory material. These notes and footnotes
C1232 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 C1232 shall apply
as standard. The values given in parentheses are mathematical
for this specification.
conversions to SI units that are provided for information only
and are not considered standard.
4. Classification
NOTE 1—Concrete masonry units covered by this specification are
made from lightweight or normal weight aggregates, or both. 4.1 Nonloadbearing concrete masonry units manufactured
NOTE 2—When particular features are desired, such as density
in accordance with this specification shall conform to one of
classification, surface texture for appearance or bond, finish, color, fire
three density classifications prescribed in Table 1.
resistance, insulation, acoustical properties, or other special features, such
properties should be specified separately by the purchaser. However,
suppliers should be consulted as to the availability of units having the 5. Materials and Manufacture
desired features.
5.1 Cementitious Materials—Materials shall conform to the
following applicable specifications:
2. Referenced Documents
5.1.1 Portland Cement—Specification C150.
2.1 ASTM Standards:
5.1.2 Blended Hydraulic Cements—Specification C595.
C33 Specification for Concrete Aggregates
5.1.3 Hydraulic Cement—Specification C1157.
C140 Test Methods for Sampling and Testing Concrete
5.1.4 Hydrated Lime, Type S—Specification C207.
Masonry Units and Related Units
5.1.5 Ground Granulated Blast Furnace Slag—
C150 Specification for Portland Cement
Specification C989.
C207 Specification for Hydrated Lime for Masonry Pur-
5.1.6 Pozzolans—Specification C618.
poses
5.2 Aggregates—Aggregates shall conform to the following
ASTM specifications, except that grading requirements shall
not necessarily apply:
This specification is under the jurisdiction of ASTM Committee C15 on
5.2.1 Normal Weight Aggregates—Specification C33.
Manufactured Masonry Units and is the direct responsibility of Subcommittee
C15.03 on Concrete Masonry Units and Related Units.
5.2.2 Lightweight Aggregates—Specification C331.
Current edition approved Dec. 1, 2014. Published January 2015. Originally
5.3 Other Constituents—Air-entraining agents, coloring
approved in 1937. Last previous edition approved in 2014 as C129 – 14. DOI:
10.1520/C0129-14A.
pigments, integral water repellents, finely ground silica, and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
other constituents, shall be previously established as suitable
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
for use in concrete masonry and shall conform to applicable
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ASTM standards or shall be shown by test or experience not to
*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
C129−14a
A
TABLE 1 Density Classification Requirements
8.1.2 Unitswithfinishedface(s)containingchipslargerthan
Density Oven-Dry Density of Concrete,
1 in. (25.4 mm) in any direction.
3 3
Classification lb/ft (kg/m ) Average of 3 Units
8.1.3 Units with finished face(s) containing cracks wider
Lightweight Less than 105 (1680)
than 0.02 in. (0.5 mm) and longer than 25 % of the nominal
Medium Weight 105 to less than 125 (1680 to 2000)
height of the unit.
Normal Weight 125 (2000) or more
A
8.1.4 Units that are broken.
Consult manufacturers for available densities
NOTE 5—Units specified to have particular features or finishes, such as
split-face and tumbled units, should not be evaluated for conformance of
such features to the requirements of 8.1.2.
be detrimental to the durability of the concrete masonry units
or any material customarily used in masonry construction.
8.2 Where units are to be used in exposed wall construction,
the face or faces that are to be exposed shall not show chips or
6. Physical Requirements
cracks, except as permitted in 8.1.2 and 8.1.3, or other
6.1 At the time of delivery to the purchaser, units shall
imperfections when viewed from a distance of not less than 20
conform to the strength requirements prescribed in Table 2.All
ft (6.1 m) under diffused lighting.
units shall be sound and free of cracks or other defects that
8.3 The color and texture of the units shall be specified by
interfere with the proper placement of the units or significantly
the purchaser. The finished surfaces that will be exposed in
impair the strength or permanence of the construction. Minor
place shall conform to an approved sample consisting of not
cracks incidental to the usual me
...
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: C129 − 14 C129 − 14a
Standard Specification for
Nonloadbearing Concrete Masonry Units
This standard is issued under the fixed designation C129; 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 hollow and solid nonloadbearing concrete masonry units made from portland cement, water, and
mineral aggregates with or without the inclusion of other materials. These units are intended for use in nonloadbearing partitions,
but under certain conditions they may be suitable for use in nonloadbearing exterior walls above grade where effectively protected
from the weather.
1.2 The text of this standard references notes and footnotes whichthat 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 standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
NOTE 1—Concrete masonry units covered by this specification are made from lightweight or normal weight aggregates, or both.
NOTE 2—When particular features are desired, such as density classification, surface texture for appearance or bond, finish, color, fire resistance,
insulation, acoustical properties, or other special features, such properties should be specified separately by the purchaser. However, suppliers should be
consulted as to the availability of units having the desired features.
2. Referenced Documents
2.1 ASTM Standards:
C33 Specification for Concrete Aggregates
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C150 Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Purposes
C331 Specification for Lightweight Aggregates for Concrete Masonry Units
C456C426 Test Method for Hydration Resistance of Basic Bricks and ShapesLinear Drying Shrinkage of Concrete Masonry
Units
C595 Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C989 Specification for Slag Cement for Use in Concrete and Mortars
C1157 Performance Specification for Hydraulic Cement
C1232 Terminology of Masonry
3. Terminology
3.1 Terminology defined in Terminology C1232 shall apply for this specification.
4. Classification
4.1 Nonloadbearing concrete masonry units manufactured in accordance with this specification shall conform to one of three
density classifications prescribed in Table 1.
This specification is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of Subcommittee C15.03 on
Concrete Masonry Units and Related Units.
Current edition approved July 1, 2014Dec. 1, 2014. Published August 2014January 2015. Originally approved in 1937. Last previous edition approved in 20112014 as
C129 – 11.14. DOI: 10.1520/C0129-14.10.1520/C0129-14A.
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
C129 − 14a
A
TABLE 1 Density Classification Requirements
Density Oven-Dry Density of Concrete,
3 3
Classification lb/ft (kg(kg/m⁄m ) Average of 3 Units
Lightweight Less than 105 (1680)
Medium Weight 105 to less than 125 (1680 to 2000)
Normal Weight 125 (2000) or more
A
Consult manufacturers for available densities
5. Materials and Manufacture
5.1 Cementitious Materials—Materials shall conform to the following applicable specifications:
5.1.1 Portland Cement—Specification C150.
5.1.2 Blended Hydraulic Cements—Specification C595.
5.1.3 Hydraulic Cement—Specification C1157.
5.1.4 Hydrated Lime, Type S—Specification C207.
5.1.5 Ground Granulated Blast Furnace Slag—Specification C989.
5.1.6 Pozzolans—Specification C618.
5.2 Aggregates—Aggregates shall conform to the following ASTM specifications, except that grading requirements shall not
necessarily apply:
5.2.1 Normal Weight Aggregates—Specification C33.
5.2.2 Lightweight Aggregates—Specification C331.
5.3 Other Constituents—Air-entraining agents, coloring pigments, integral water repellents, finely ground silica, and other
constituents, shall be previously established as suitable for use in concrete masonry and shall conform to applicable ASTM
standards or shall be shown by test or experience not to be detrimental to the durability of the concrete masonry units or any
material customarily used in masonry construction.
6. Physical Requirements
6.1 At the time of delivery to the purchaser, units shall conform to the strength requirements prescribed in Table 2. All units
shall be sound and free of cracks or other defects that interfere with the proper placement of the units or significantly impair the
strength or permanence of the construction. Minor cracks incidental to the usual method of manufacture or minor chipping
resulting from customary methods of handling in shipment and delivery are not grounds for rejection.
NOTE 3—The purchaser is the public body or authority, association, corporation, partnership, or individual entering into a contract or agreement to
purchase or install, or both, concrete masonry units. The time of delivery to the purchaser is FOB plant when the purchaser or purchaser’s agent transports
the concrete masonry units, or at the time unloaded at the worksite if the manufacturer or manufacturer’s agent transports the concrete masonry units.
6.2 At the time of delivery to the purchaser, the total linear drying shrinkage of units shall not exceed 0.065%.
6.3 Solid Units—The net cross-sectional area of solid units, in every plane para
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