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ASTM C1660-10

(Specification)

Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry

Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry

ABSTRACT
This specification addresses the material and performance requirements of thin-bed mortar used in the construction of autoclaved aerated concrete (AAC) masonry. Materials used in the preparation of the thin-bed mortar shall conform to the requirements specified in referenced ASTM documents itemized herein. These materials include masonry cement, fine aggregates, Portland cement, hydrated lime, blended hydraulic cement, hydraulic cement, mortar cement, rapid hardening hydraulic cement, and adhesives. Properly sampled test specimens shall adhere to the minimum splitting tensile strength requirements specified for its class.
SCOPE
1.1 This specification applies to thin-bed mortar for autoclaved aerated concrete (AAC) masonry.
1.2 The testing laboratory performing these test methods shall be evaluated in accordance with Practice C1093.
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 standard may involve hazardous materials, operations, and equipment. 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2010
ICS
91.100.10 - Cement. Gypsum. Lime. Mortar
Technical Committee
C12 - Mortars and Grouts for Unit Masonry
Drafting Committee
C12.03 - Specifications for Mortars
Current Stage
Ref Project

Relations

Replaces
ASTM C1660-09 - Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
01-Jun-2010
Replaced By
ASTM C1660-10(2018) - Standard Specification for Thin-bed Mortar for Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
01-Jan-2018
Referred By
ASTM C1692-18 - Standard Practice for Construction and Testing of Autoclaved Aerated Concrete (AAC) Masonry
Effective Date
01-Jun-2010

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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:C1660 −10
Standard Specification for
Thin-bed Mortar for Autoclaved Aerated Concrete (AAC)
1
Masonry
This standard is issued under the fixed designation C1660; 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 C1384 Specification for Admixtures for Masonry Mortars
C1386 Specification for Precast Autoclaved Aerated Con-
1.1 This specification applies to thin-bed mortar for auto-
3
crete (AAC) Wall Construction Units (Withdrawn 2013)
claved aerated concrete (AAC) masonry.
C1452 Specification for Reinforced Autoclaved Aerated
1.2 The testing laboratory performing these test methods 3
Concrete Elements (Withdrawn 2013)
shall be evaluated in accordance with Practice C1093.
C1555 Practice for Autoclaved Aerated Concrete Masonry
3
1.3 The values stated in inch-pound units are to be regarded (Withdrawn 2009)
C1600/C1600M Specification for Rapid Hardening Hydrau-
as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only lic Cement
and are not considered standard.
3. Terminology
1.4 This standard may involve hazardous materials,
3.1 Definitions—For definitions of terms used in this
operations, and equipment. This standard does not purport to
specification, refer to Terminologies C1180 and C1232, and
address all of the safety concerns, if any, associated with its
Specification C1386.
use. It is the responsibility of the user of this standard to
establish appropriate safety and health practices and deter-
3.2 Definitions of Terms Specific to This Standard:
mine the applicability of regulatory limitations prior to use.
3.2.1 thin-bed mortar, n—preblended mortar for use in
construction of AAC unit masonry whose joints are approxi-
2. Referenced Documents
1 1
mately ⁄16 to ⁄8-in. (2 to 3-mm) thick.
2
2.1 ASTM Standards:
C91 Specification for Masonry Cement
4. Significance and Use
C144 Specification for Aggregate for Masonry Mortar
4.1 This specification applies to the thin-bed mortar mate-
C150 Specification for Portland Cement
rials used in the construction of AAC masonry. It references
C207 Specification for Hydrated Lime for Masonry Pur-
directly the AAC materials standards under the jurisdiction of
poses
ASTM Committees C15 and C27 including Specifications
C595 Specification for Blended Hydraulic Cements
C1386, C1452, and C1555.
C1006 Test Method for Splitting Tensile Strength of Ma-
sonry Units
5. Materials
C1093 Practice for Accreditation of Testing Agencies for
5.1 Materials used in the preparation of thin-bed mortar for
Masonry
AAC masonry shall conform to the requirements specified.
C1157 Performance Specification for Hydraulic Cement
5.1.1 Masonry cement shall conform to Specification C91.
C1180 Terminology of Mortar and Grout for Unit Masonry
5.1.2 Fine aggregates shall conform to Specification C144
C1232 Terminology of Masonry
with the exception of the gradation requirements, which shall
C1329 Specification for Mortar Cement
not apply. The maximum aggregate size shall be that passing a
#6 standard sieve.
1
This specification is under the jurisdiction of ASTM Committee C12 on
5.1.3 Portland cement shall conform to Specification C150.
Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcom-
5.1.4 Hydrated lime shall conform to Specification C207.
mittee C12.03 on Specifications for Mortars.
Type N lime is permitted if shown by test or performance
Current edition approved June 1, 2010. Published June 2010. Originally
approved in 2009. Last previous edition approved in 2009 as C1660 – 09. DOI:
record not to be detrimental to soundness of mortar.
10.1520/C1660-10.
2
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
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1660−10
1 1
5.1.5 Blended hydraulic cement shall conform to Specifica- bedded joint, approximately ⁄16-in. (2-mm) to ⁄8-in. (3-mm)
tion C595. thick. Place the other specimen pair on top of the mortar so that
5.1.6 Hydraulic cement shall conform to Specification the manufactured surfaces of the pair are now both in contact
C1157. withthemortar.Pressfirmlybyhandtoensureintimatecontact
5.1.7 Mortar cement shall conform to Specification C1329. between unit specimens and morta
...

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:C1660–09 Designation: C1660 – 10
Standard Specification for
Thin-bed Mortar for Autoclaved Aerated Concrete (AAC)
1
Masonry
This standard is issued under the fixed designation C1660; 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 (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification applies to thin-bed mortar for autoclaved aerated concrete (AAC) masonry.
1.2 The testing laboratory performing these test methods shall be evaluated in accordance with Practice C1093.
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 standard may involve hazardous materials, operations, and equipment. 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C91 Specification for Masonry Cement
C144 Specification for Aggregate for Masonry Mortar
C150 Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Purposes
C595 Specification for Blended Hydraulic Cements
C1006 Test Method for Splitting Tensile Strength of Masonry Units
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1157 Performance Specification for Hydraulic Cement
C1180 Terminology of Mortar and Grout for Unit Masonry
C1232 Terminology of Masonry
C1329 Specification for Mortar Cement
C1384 Specification for Admixtures for Masonry Mortars
C1386 Specification for Precast Autoclaved Aerated Concrete (AAC) Wall Construction Units
C1452 Specification for Reinforced Autoclaved Aerated Concrete Elements
C1555 Practice for Autoclaved Aerated Concrete Masonry
C1600/C1600M Specification for Rapid Hardening Hydraulic Cement
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminologies C1180 and C1232, and Specification
C1386.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 thin-bed mortarthin-bed mortar, n—preblended mortar for use in construction of AAC unit masonry whose joints are
1 1
approximately ⁄16 to ⁄8-in. (2 to 3-mm) thick.
4. Significance and Use
4.1 This specification applies to the thin-bed mortar materials used in the construction of AAC masonry. It references directly
the AAC materials standards under the jurisdiction of ASTM Committees C15 and C27 including Specifications C1386, C1452,
and C1555.
1
This specification is under the jurisdiction of ASTM Committee C12 on Mortars and Grouts for Unit Masonry and is the direct responsibility of Subcommittee C12.03
on Specifications for Mortars.
Current edition approved July 1, 2009. Published August 2009. DOI: 10.1520/C1660-09.
CurrenteditionapprovedJune1,2010.PublishedJune2010.Originallyapprovedin2009.Lastpreviouseditionapprovedin2009asC1660 – 09.DOI:10.1520/C1660-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C1660 – 10
5. Materials
5.1 Materials used in the preparation of thin-bed mortar for AAC masonry shall conform to the requirements specified.
5.1.1 Masonry cement shall conform to Specification C91.
5.1.2 Fine aggregates shall conform to Specification C144 with the exception of the gradation requirements, which shall not
apply. The maximum aggregate size shall be that passing a #6 standard sieve.
5.1.3 Portland cement shall conform to Specification C150.
5.1.4 Hydrated lime shall conform to Specification C207. Type N lime is permitted if shown by test or performance record not
to be detrimental to soundness of mortar.
5.1.5 Blended hydraulic cement shall conform to Specification C595.
5.1.6 Hydraulic cement shall conform to Specification C1157.
5.1.7 Mortar cement shall conform to Specification C1329.
5.1.8 Rapid hardening hydraulic cement shall conform to Specifi
...

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4.4 Failure of a mortar to have the composition of any type as defined in Table 1 of Specification C270 does not necessarily mean that the mortar does not meet the requirements of Specification C270. The mortar may meet the alternative requirements of Table 2 (Property Specification Requirements) of Specification C270.  
4.5 The maleic acid method of analysis is not applicable for the analysis of mortar because it is greatly influenced by carbonation and does not provide for the determination of calcium.
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1.1 This test method covers procedures for petrographic examination and chemical analysis of samples of masonry mortars. Based upon such examination and analysis, proportions of components in masonry mortars can be determined.
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1.2 Interpretations and calculations of chemical results are dependent upon results of the petrographic examination. The use of the chemical results alone is contrary to the requirements of this test method.  
1.3 Procedures for sampling, petrographic examination, chemical analysis, and calculations of component proportions are given in the following sections:    
Section  
Sampling  
7  
Petrographic examination  
8  
Chemical analysis  
9  
Mortar proportion calculations  
10  
Report  
11  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.  
1.6 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.  
1.7 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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    7 pages
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  • Standard
    7 pages
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ASTM
ASTM C1586-20(Guide)
Standard Guide for Quality Assurance of Mortars

SIGNIFICANCE AND USE
3.1 This document is intended to provide guidance and clarification to designers, specifiers, inspectors, testing agencies, producers, and users in specifying and evaluating masonry mortar.  
3.2 Users of documents Specification C270 and Test Method C780 often confuse and sometimes inadvertently misuse parts of the two documents when specifying or evaluating masonry mortar. This guide seeks to address specific items within Specification C270 and Test Method C780 to help promote their proper use and interpretation.
SCOPE
1.1 This document provides guidance regarding the proper use of Specification C270 and Test Method C780 for evaluating masonry mortar produced in the laboratory and at the construction site.  
1.2 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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    4 pages
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  • Guide
    4 pages
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ASTM
ASTM C887-20(Specification)
Standard Specification for Packaged, Dry, Combined Materials for Surface Bonding Mortar

ABSTRACT
This specification covers the materials, properties, and packaging of dry, combined materials for use as surface bonding mortar with concrete masonry units that have not been prefaced, coated, or painted. The materials used as ingredients shall consist of the following: cements which shall be a Portland cement, blended hydraulic cement, hydraulic cement, or masonry cement; Type S or SA hydrated lime; Class N, F, or S pozzolan; aggregates; glass fibers; and additives. Physical properties of the packaged materials shall conform to the flexural strength, compressive strength, time of setting, and water retention requirements. The net weight, amount of mixing water, unit weight, and yield of the surface bonding mortar shall be calculated and reported.
SCOPE
1.1 This specification covers the materials, properties, and packaging of dry, combined materials for use as surface bonding mortar with concrete masonry units that have not been prefaced, coated, or painted.  
1.2 This specification does not cover design or application. Consult the manufacturer for specific recommendations.  
1.3 Appendix X1 of this specification contains the recommended tests for evaluation of surface bonded masonry assemblages used to establish design loads for the composite wall.  
1.4 Appendix X2 through Appendix X5 of this specification contain additional tests that may be performed on surface bonding mortar.  
1.5 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.  
1.6 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. This hazard statement applies only to Section 9 of this specification.  
1.7 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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    13 pages
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  • Technical specification
    13 pages
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