Utilization of citro- and desulphogypsum as set retarders in Portland cement
作者： M.Hulusi Ozkul
DOI: 10.1016/S0008-8846(00)00409-9
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摘要: The utilization of citro- and desulphogypsum in the cement industry as set retarders was tested compared with natural gypsum. Chemical gypsums were used two different forms, powder agglomerated under pressure. Setting times volume stability pastes, well compressive flexural strengths mortars evaluated. A Student's t statistic applied to test equality strength results at ages 3, 7, 28 days.
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