This standard is issued under the fixed designation C 452; 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 (e) indicates an editorial change since the last revision or reapproval. | Designation C 452 95 Standard Test Method for Potential Expansion of Portland-Cement Mortars Exposed to Sulfate1 This standard is issued under the fixed d ii r atic n c 452 the number immediately fc llc Wr ig 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 e indicates an editorial change since the last revision or reapproval. 1. Scope This test method which is applicable only to portland cements covers the determination of the expansion of mortar bars made from a mixture of portland cement and gypsum in such proportions that the mixture has a sulfur trioxide SO3 content of mass . The values stated in SI Practice E 380 units are to be regarded as the standard. 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 ASTM Standards C 109 C 109M Test Method for Compressive Strength of Hydraulic Cement Mortars Using 50-mm 2-in. Cube Specimens 2 3 C 150 Speci íUì n for Portland Ccmcnf2 C 230 Specificahon for Flow Tabic for Use in Tcsss of Hydraulic Cement2 C 305 Practice for Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency2 C 471 Test Methods for Chemical Analysis of Gypsum and Gypsum Products2 C 490 Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste Mortar and Concrete2 C 511 Specification íor MoísS c i e Moísi Rooms and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes2 C 778 Specifica on for Slmn ru d Simd2 C 1005 Specifica on for Weights and Weighing Devices for Use in the Physical Testing of Hydraulic Cements2 D 1193 Specification for Reagent Wafer1 E 380 .
