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|Title:||Sulfate resistance of hydraulic cements containing blast-furnace slag|
|Authors:||American Society for Testing and Materials.|
Buck, Alan D.
|Publisher:||Structures Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; SL-85-14.|
Abstract: Recent research at the US Army Engineer Waterways Experiment Station (WES) has included two projects having the objective of developing a test for sulfate resistance. This work included tests using one portland blast-furnace slag cement from Alabama, one from Michigan, one from Pennsylvania, and two from Germany. In addition, samples of the comparable Type I from the plant in Alabama, slag used for the Michigan IS, and a Type V cement from Canada were included. Finally, tests were made using a natural pozzolan from California as 30 percent replacement by solid volume for the two cements from Alabama and the one from Canada. Expansion testing for sulfate resistance was usually in a 5 percent solution of sodium sulfate. Other tests included materials analysis before use and X-ray diffraction examination of mortar-bar paste concentrations after the expansion tests, periodic determinations of relative modulus of elasticity of mortar bars, and partial chemical analyses of the test solution before and during the expansion testing. The report concentrates on expansion data and materials characterization and efforts to relate these factors. In general, specimens made using the cements containing slag showed more than 0.1 percent expansion in the mortar-bar test. The addition of natural pozzolan reduced the expansion.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Miscellaneous Paper|