ASTM-C426 › Historical Revision Information
Standard Test Method for Linear Drying Shrinkage of Concrete Masonry Units
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Scope
1.1 This test method covers a routine standardized procedure for determining the linear drying shrinkage of concrete masonry units or related concrete units under specified accelerated drying conditions.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
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.
Significance and Use
This test method is intended to evaluate the drying shrinkage characteristics of a given unit. The results of this laboratory method are considered in determining concrete masonry crack control provisions.
Note 1—The testing laboratory performing this test method should be evaluated in accordance with Practice C 1093
Keywords
comparator; concrete brick; concrete masonry units; drying; drying oven; shrinkage; strain gauge; ICS Number Code 91.100.30 (Concrete and concrete products)
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91.100.30 (Concrete and concrete products Including admixtures)
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Document Number
ASTM-C426-07
Revision Level
2007 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
June 1, 2007
Document Type
Test Method
Page Count
6 pages
Committee Number
C15.03