ASTM C 207 : 2024
Current
The latest, up-to-date edition.
Standard Specification for Hydrated Lime for Masonry Purposes
Hardcopy , PDF
English
06-01-2024
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
C 07
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| DocumentType |
Standard
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| Pages |
2
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| PublisherName |
American Society for Testing and Materials
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| Status |
Current
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| Supersedes |
1.1This specification covers four types of hydrated lime. Types N and S are suitable for use in mortar, in scratch and brown coats of cement plaster, for stucco, and for addition to portland-cement concrete. Types NA and SA are air-entrained hydrated limes that are suitable for use in any of the above uses where the inherent properties of lime and air-entrainment are desired. The four types of lime sold under this specification shall be designated as follows:
1.1.1Type N—Normal hydrated lime for masonry purposes.
1.1.2Type S—Special hydrated lime for masonry purposes.
1.1.3Type NA—Normal air-entraining hydrated lime for masonry purposes.
1.1.4Type SA—Special air-entraining hydrated lime for masonry purposes.
Note 1:Type S, special hydrated lime, and Type SA, special air-entraining hydrated lime, are differentiated from Type N, normal hydrated lime, and Type NA, normal air-entraining hydrated lime, principally by their ability to develop high, early plasticity and higher water retentivity, and by a limitation on their unhydrated oxide content.
Note 2:For normal (Type N) and special (Type S) finishing hydrated lime, refer to Specification C206.
Note 3:Some building codes prohibit the use of air-entraining materials in mortar, because of the accompanying reduction in bond and compressive strength. Where increased freeze-thaw resistance is important, air-entraining may be beneficial. Air-entraining lime should not be used as a finishing lime.
Note 4:For lime putty, refer to Specification C1489.
1.2The values stated in SI units are to be regarded as standard.
1.3This 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.
1.4This 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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