ASTM-C465 › Historical Revision Information
Standard Specification for Processing Additions for Use in the Manufacture of Hydraulic Cements
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This specification covers the criteria and tests to be used for determining whether a processing addition meets the requirement. When proposed addition is accepted for general use in Portland cement, tests shall be made on cements prepared from at least five different clinkers. These clinkers shall represent two Type I cements, one Type II cement, and two Type III cements. Processing additions shall be evaluated by comparing cements containing the addition to otherwise identical cements from the same source without the addition, or containing a processing addition. The compressive strength and flexural strength of the concrete made with cement containing the addition shall be compared with strengths obtained with the control cement at similar ages. The properties of the materials shall be determined through the following tests in accordance with the following standard: chemical analysis of the cement, compound composition, fineness of cement, normal consistency, time of setting, autoclave expansion, air content of mortar, compressive strength of mortar, and drying shrinkage of mortar.
Scope
1.1 This specification pertains to the criteria and tests to be used for determining whether a processing addition, when used in the recommended amount at the option of the cement producer in the manufacture of hydraulic cements, meets the requirements as prescribed by definition in Specifications C 150, C 1157, C 845, and C 595. The materials listed in the following former ASTM Specifications shall be considered as meeting the requirements of this specification:
C 150 - 62, for Portland Cement | |
C 205 - 58 T, for Portland Blast-Furnace Slag Cement | |
C 340 - 58 T, for Portland Pozzolan Cement | |
C 358 - 58, for Slag Cement | |
Keywords
additions; hydraulic cements; processing; ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
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91.100.10 (Cement. Gypsum. Lime. Mortar)
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Document Number
ASTM-C465-99(2005)
Revision Level
1999 R05 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
July 1, 2005
Document Type
Specification
Page Count
4 pages
Committee Number
C01.20