ASTM C1372-17

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 density classification, higher compressive strength, surface texture, finish, color, or other special features, such properties should be specified separately by the purchaser. Suppliers should be consulted as to availability of units having the desired features.  
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.  
1.4 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.

General Information

• Status: Historical
• Publication Date: 31-Jul-2017
• ICS: 91.060.10 - Walls. Partitions. Facades
• Technical Committee: C15 - Manufactured Masonry Units
• Drafting Committee: C15.03 - Concrete Masonry Units and Related Units

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 −17
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* C595 Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined
1.1 This specification covers dry-cast segmental retaining
Natural Pozzolan for Use in Concrete
wall units of concrete, machine–made from hydraulic cement,
C989 Specification for Slag Cement for Use in Concrete and
water, and suitable mineral aggregates with or without the
Mortars
inclusion of other materials. The units are intended for use in
C1157 Performance Specification for Hydraulic Cement
the construction of mortarless segmental retaining walls.
C1232 Terminology for Masonry
NOTE 1—When particular features are desired, such as density
C1262 Test Method for Evaluating the Freeze-Thaw Dura-
classification, higher compressive strength, surface texture, finish, color,
bility of Dry-Cast Segmental Retaining Wall Units and
or other special features, such properties should be specified separately by
Related Concrete Units
the purchaser. Suppliers should be consulted as to availability of units
having the desired features.
3. Terminology
1.2 The text of this standard references notes and footnotes
3.1 Terminology defined in Terminology C1232 shall apply
that provide explanatory material. These notes and footnotes
for this specification.
(excluding those in tables and figures) shall not be considered
as requirements of the standard.
3.2 Definitions:
3.2.1 Dry-cast, adj—manufacturing concrete products using
1.3 The values stated in inch-pound units are to be regarded
low frequency, high amplitude vibration to consolidate con-
as standard. The values given in parentheses are mathematical
crete of stiff or extremely dry consistency in a form.
conversions to SI units that are provided for information only
and are not considered standard.
3.2.2 segmental retaining wall unit, n—unit manufactured
of concrete for the construction of dry-stacked earth retaining
1.4 This international standard was developed in accor-
walls.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.2.3 segmental retaining wall unit, dry-cast, n—a segmen-
Development of International Standards, Guides and Recom-
tal retaining wall unit manufactured of concrete using a
mendations issued by the World Trade Organization Technical
dry-cast process.
Barriers to Trade (TBT) Committee.
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 LightweightAggregates for Concrete
cium Carbonate (CaCO ) content, shall be permitted to be
3
Masonry Units
added to the cement, provided these requirements of Specifi-
cation C150 as modified are met:
1
This specification is under the jurisdiction of ASTM Committee C15 on
(1) Limitation on Insoluble Residue—1.5 %.
Manufactured Masonry Units and is the direct responsibility of C15.03 on Concrete
(2) Limitation onAir Content of Mortar—Volume percent,
Masonry Units and Related Units.
22 % max.
Current edition approved Aug. 1, 2017. Published August 2017. Originally
(3) Limitation on Loss of Ignition—7 %.
approved in 1997. Last previous edition approved in 2016 as C1372 – 16. DOI:
10.1520/C1372-17.
4.1.3 Blended Hydraulic Cements—Specification C595.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.4 Hydraulic Cement—Specification C1157.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.5 Pozzolans—Specification C618.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 4.1.6 Blast Furnace Slag Cement—Specification C989.
*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

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C1372−17
4.2 Aggregates—Aggregates shall conform to the following specimens at the conclusion of 150 cycles shall not exceed
sp
...

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: C1372 − 16 C1372 − 17
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*
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 density classification, higher compressive strength, surface texture, finish, color, or other special
features, such properties should be specified separately by the purchaser. Suppliers should be consulted as to availability of units having the desired
features.
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.
1.4 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.
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
C1232 Terminology for Masonry
C1262 Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related
Concrete Units
3. 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 June 1, 2016Aug. 1, 2017. Published July 2016August 2017. Originally approved in 1997. Last previous edition approved in 20142016 as
C1372 – 14a.C1372 – 16. DOI: 10.1520/C1372-16.10.1520/C1372-17.
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
1

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C1372 − 17
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 added to
3
the cement, provided these requirements of Specification C150 as modified are met:
(1) Limitation on Insoluble Residue—1.5 %.
(2) Limitation on Air Content of Mortar—Volume percent, 22 % max.
(3) Li
...