Accession Number : AD0751754

Title :   Effect of Added Gypsum on the One-Day Strength of Mortar,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Kennedy,Thomas B.

Report Date : OCT 1962

Pagination or Media Count : 14

Abstract : The results of the study indicate that the 24-hr compressive strength of 2-in. cubes of 1:1 cement-Ottawa sand mortar may be used to show whether a cement as manufactured contains sufficient SO3. If insufficient calcium sulfate were added during manufacture to provide the optimum amount of SO3, the optimum amount can be determined by addition of successive increments of gypsum to the cement until the maximum strength is reached, as indicated by compressive strength tests of 2-in. cubes at 24-hr. age. (Author)

Descriptors :   (*GYPSUM, ADDITIVES), (*CEMENTS, COMPRESSIVE PROPERTIES), OPTIMIZATION, CLASSIFICATION, ACCELERATED TESTING, CALCIUM COMPOUNDS, SULFATES, TEST METHODS

Subject Categories : Construction Equipment, Materials & Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE