ASTM C1372-09

Standard Specification for Dry-Cast Segmental Retaining Wall Units

ABSTRACT
This specification covers dry–cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls. The material composition of retaining wall units consists of cementitious materials like portland cement and its modified form, limestone, hydraulic cement, blended hydraulic cement, pozzolans, blast furnace slag cement, aggregates, and other constituents which include air-entraining agents, coloring pigments, integral water repellents, and finely ground silica. All units shall be sound and free of cracks or other defects that interfere with the proper placement of the unit or significantly impair the strength or permanence of the construction.
SCOPE
1.1 This specification covers dry-cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls.
Note 1—When particular features are desired, such as weight classification, higher compressive strength, surface texture, finish, color, or other special features, such properties should be specified separately by the purchaser. Local suppliers should be consulted as to availability of units having the desired features.
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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

General Information

• Status: Historical
• Publication Date: 30-Nov-2009
• ICS: 91.060.10 - Walls. Partitions. Facades
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.03 - Concrete Masonry Units and Related Units

Relations

• Replaces: ASTM C1372-04e2 - Standard Specification for Dry-Cast Segmental Retaining Wall Units
• Effective Date: 01-Dec-2009
• Replaced By: ASTM C1372-11 - Standard Specification for Dry-Cast Segmental Retaining Wall Units
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1262/C1262M-18 - Standard Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units
• Effective Date: 01-Dec-2009
• Referred By: ASTM C140/C140M-23 - Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
• Effective Date: 01-Dec-2009
• Referred By: ASTM C1232-21a - Standard Terminology for Masonry
• Effective Date: 01-Dec-2009

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: C1372 – 09
Standard Specification for
1
Dry-Cast Segmental Retaining Wall Units
This standard is issued under the fixed designation C1372; 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* C1157 Performance Specification for Hydraulic Cement
C1232 Terminology of Masonry
1.1 This specification covers dry-cast segmental retaining
C1262 Test Method for Evaluating the Freeze-Thaw Dura-
wall units of concrete, machine–made from hydraulic cement,
bility of Dry-Cast Segmental Retaining Wall Units and
water, and suitable mineral aggregates with or without the
Related Concrete Units
inclusion of other materials. The units are intended for use in
the construction of mortarless segmental retaining walls.
3. Terminology
NOTE 1—When particular features are desired, such as weight classifi-
3.1 Terminology defined in Terminology C1232 shall apply
cation, higher compressive strength, surface texture, finish, color, or other
for this specification.
special features, such properties should be specified separately by the
3.2 Definitions:
purchaser. Local suppliers should be consulted as to availability of units
3.2.1 Dry-cast, adj—manufacturingconcreteproductsusing
having the desired features.
low frequency, high amplitude vibration to consolidate con-
1.2 The text of this standard references notes and footnotes
crete of stiff or extremely dry consistency in a form.
which provide explanatory material. These notes and footnotes
3.2.2 segmental retaining wall unit, n—unit manufactured
(excluding those in tables and figures) shall not be considered
of concrete for the construction of dry-stacked earth retaining
as requirements of the standard.
walls.
1.3 The values stated in inch-pound units are to be regarded
3.2.3 segmental retaining wall unit, dry-cast, n—a segmen-
as standard. The values given in parentheses are mathematical
tal retaining wall unit manufactured of concrete using a
conversions to SI units that are provided for information only
dry-cast process.
and are not considered standard.
4. Materials
2. Referenced Documents
4.1 Cementitious Materials—Materials shall conform to the
2
2.1 ASTM Standards:
following applicable specifications:
C33 Specification for Concrete Aggregates
4.1.1 Portland Cements—Specification C150.
C140 Test Methods for Sampling and Testing Concrete
4.1.2 Modified Portland Cement—Portland cement con-
Masonry Units and Related Units
forming to Specification C150, modified as follows:
C150 Specification for Portland Cement
4.1.2.1 Limestone—Limestone, with a minimum 85 % Cal-
C331 Specification for Lightweight Aggregates for Con-
cium Carbonate (CaCO ) content, shall be permitted to be
3
crete Masonry Units
added to the cement, provided these requirements of Specifi-
C595 Specification for Blended Hydraulic Cements
cation C150 as modified are met:
C618 Specification for Coal Fly Ash and Raw or Calcined
(1) Limitation on Insoluble Residue—1.5 %.
Natural Pozzolan for Use in Concrete
(2) Limitation on Air Content of Mortar—Volume percent,
C989 Specification for Slag Cement for Use in Concrete
22 % max.
and Mortars
(3) Limitation on Loss of Ignition—7 %.
4.1.3 Blended Hydraulic Cements— Specification C595.
1
This specification is under the jurisdiction of ASTM Committee C15 on 4.1.4 Hydraulic Cement—Specification C1157.
Manufactured Masonry Units and is the direct responsibility of C15.03 on Concrete
4.1.5 Pozzolans—Specification C618.
Masonry Units and Related Units
4.1.6 Blast Furnace Slag Cement—Specification C989.
Current edition approved Dec. 1, 2009. Published December 2009. Originally
´2
4.2 Aggregates—Aggregates shall conform to the following
approved in 1997. Last previous edition approved in 2004 as C1372 – 04 . DOI:
10.1520/C1372-09.
specifications, except that grading requirements shall not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
necessarily apply:
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.2.1 Normal Weight Aggregates—Specification C33.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.2.2 Lightweight Aggregates—Specification C331.
*ASummary 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

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C1372 – 09
NOTE 3—Split-faced surfaces are the most common surfaces used to
4.3 Other Constituents—Air-entraining agents, coloring
provide an architectural appearance to segmental retaining walls. How-
pigmen
...

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.
´2
Designation:C1372–04 Designation: C1372 – 09
Standard Specification for
1
Dry-Cast Segmental Retaining Wall Units
This standard is issued under the fixed designation C1372; 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
´ NOTE—An editorial change was made to the title in June 2004.
2
´ NOTE—A heading in Table1 was editorially corrected in March 2007.
1. Scope*
1.1 This specification covers dry-cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water,
and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction
of mortarless segmental retaining walls.
NOTE 1—When particular features are desired, such as weight classification, higher compressive strength, surface texture, finish, color, or other special
features, such properties should be specified separately by the purchaser. Local suppliers should be consulted as to availability of units having the desired
features.
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.
1.3The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information
only.
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.
2. Referenced Documents
2
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
C331 Specification for Lightweight Aggregates for 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 C1209Terminology of Concrete Masonry Units and Related Units
C1232 Terminology of Masonry
C1262 Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related
Concrete Units
3. Terminology
3.1Terminology defined in Terminology C1209 and Terminology
3.1 Terminology defined in Terminology C1232 shall apply for this specification.
3.2 Definitions:
3.2.1 Dry-cast, adj—manufacturing concrete products using low frequency, high amplitude vibration to consolidate concrete of
stiff or extremely dry consistency in a form.
3.2.2 segmental retaining wall unit, n—unit manufactured of concrete for the construction of dry-stacked earth retaining walls.
1
This specification is under the jurisdiction of ASTM Committee C15 on Manufactured Masonry Units and is the direct responsibility of C15.03 on Concrete Masonry
Units and Related Units
Current edition approved Jan. 1, 2004. Published February 2004. Originally approved in 1997. Last previous edition approved in 2003 as C1372–03. DOI:
10.1520/C1372-04E02.
´2
Current edition approved Dec. 1, 2009. Published December 2009. Originally approved in 1997. Last previous edition approved in 2004 as C1372 – 04 . DOI:
10.1520/C1372-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
*ASummary 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 ----------------------
C1372 – 09
3.2.3 segmental retaining wall unit, dry-cast, n—a segmental retaining wall unit manufactured of concrete using a dry-cast
process.
4. Materials
4.1 Cementitious Materials—Materials shall conform to the following applicable specifications:
4.1.1 Portland Cements—Specification C150.
4.1.2 Modified Portland Cement—Portland cement conforming to Specification C150, modified as follows:
4.1.2.1 Limestone—Limestone, with a minimum 85 % Calcium Carbonate (CaCO ) content, shall be permitted to be ad
...