【摘要】 采用经多种方法确定为碱碳酸盐活性的骨料,按小混凝土柱法,研究了粉煤灰、矿渣、硅粉、天然沸石及其复合超细粉 对碱-碳酸盐反应(ACR)膨胀的影响;分析了孔溶液碱度与ACR膨胀的关系,对ACR膨胀机理进行了探讨。更多还原

【Abstract】 With using of the alkali - carbonete - reactive aggregates, affirmed by various test methods, and according to the test method of small concrete prisms, the influence of fly - ash. slag, silica fume and natural zeolite and its composites oi ultra - fine powders on ACR expansion is experimentally researched. Based on rezults the relationship between alkalinity of pore solution and expansion of alkali - carbonate reaction is analysed. And the mechanism oi ACR expansion is discussed.更多还原