【摘要】 测试了辉绿岩碎石和石灰石碎石作集料对混凝土工作性、强度以及界面特性影响。结果表明:由于辉绿岩碎石视比重较大,辉绿岩碎石配制出的混凝土坍落度优于石灰石碎石混凝土。由于辉绿岩为硅质集料,辉绿岩碎石与水泥石形成界面较石灰石碎石与水泥石所形成界面处的Ca(OH)2晶体更小,且界面显微硬度更高,表现出的宏观力学性质更好。更多还原

【Abstract】 It was investigated that the effects of the diabase aggregate and limestone aggregate on the workability and compressive strength and the property of interfacial transition zone(ITZ) of aggregate-cement.The result shows that the slump of the diabase aggregate concrete is bigger than the limestone one,because the apparent density of the diabase aggregate is bigger.The dimension of Ca(OH)2 crystals of the ITZ of the diabase concrete is smaller and micro-hardness of that is higher,because the diabase aggregate is the siliceous one.And the diabase concrete have the better mechanical property.更多还原