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Study on Cracking Sensitivity of Compound Cementitious Matenal with Clinker and Limestone Powder and Fly Ash
Author(s): 
Pages: 31-33,39
Year: Issue:  4
Journal: Fly Ash Comprehensive Utilization

Keyword:  石灰石粉粉煤灰复合胶凝材料开裂敏感性;
Abstract: 利用石灰石粉和粉煤灰与熟料复合制备复合胶凝材料,并与普通硅酸盐水泥对比研究在保持混凝土坍落度相同的情况下,它们的开裂敏感性.结果表明:石灰石粉-粉煤灰-熟料复合胶凝材料制备的混凝土不同龄期的抗压强度均高于普通硅酸水泥制备的混凝土的抗压强度.圆环的刚度低于混凝土的刚度时,混凝土不会产生开裂情况.平板法中石灰石粉-粉煤灰-熟料复合胶凝材料开裂敏感性明显低于普通硅酸盐水泥的开裂敏感性.石灰石粉和粉煤灰复合作用能够改善胶凝材料的开裂敏感性.
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