【摘 要】
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Due to its substantial CO2 impact, there is ever increasing interest in enhancing the use of supplementary cementitious materials (SCMs) to replace ordinary
【机 构】
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Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095,
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
Due to its substantial CO2 impact, there is ever increasing interest in enhancing the use of supplementary cementitious materials (SCMs) to replace ordinary Portland cement (OPC) as the primary binding agent in concrete.Fly ash, a by-product of coal combustion is an attractive SCM, for reasons of abundance and its widespread availability.Unfortunately, supplies of quality fly ash remain limited, and due to diversity in:geology, power-plant processes etc., fly ashes show very large variability in composition.As a result, the performance of fly ash when used as a SCM remains unpredictable, and often results in degraded binder performance and constructability of cementitious binders (containing fly ash).
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