废陶瓷再生混合砂砂浆的干缩性能_《混凝土与水泥制品》杂志社

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废陶瓷再生混合砂砂浆的干缩性能

Dry Shrinkage of Recycled Ceramic Mixed Sand Mortar

２０15年第4期

废陶瓷再生粗砂；特细砂；正交试验；干缩性能

Recycled ceramic coarse sand; Ultra fine sand; Orthogonal experiment; Drying shrinkage

２０15年第4期

1000-4637（2015）04-54-05

国家自然科学基金项目（50902107）；河南省科技厅科技攻关项目（142102310245）；河南省高等学校重点科研项目（15B560006）

刘俊华1，刘凤利2，3，张承志2

1.开封大学土木建筑工程学院, 475004；2.河南大学材料与结构研究所, 开封 475004 3.武汉理工大学硅酸盐建筑材料国家重点实验室，430070

刘俊华1，刘凤利2，3，张承志2

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1000

摘要：通过不同骨料砂浆干缩性能对比试验，研究了废陶瓷再生骨料对砂浆干缩性能的影响规律。采用正交试验，研究了废陶瓷再生粗砂取代率、粉煤灰取代率和水胶比对废陶瓷再生混合砂砂浆干缩性能的影响规律。结果表明，废陶瓷再生骨料有利于降低砂浆的干缩。废陶瓷再生粗砂取代率是影响废陶瓷再生混合砂砂浆干缩的主要因素。粉煤灰取代率在7d以前对砂浆干缩的影响较大，7d以后影响变小，粉煤灰取代率为10%时对废陶瓷再生混合砂砂浆干缩影响最大。 Abstract: Influence of recycled ceramic aggregates on drying shrinkage of mortar was researched by comparison test on drying shrinkage of mortar with different aggregates. Based on orthogonal trial, the factors influencing the drying shrinkage of mortar, such as the recycled ceramic coarse sand replacement ratio, the water-binder ratio and the fly ash replacement ratio, were investigated. The results indicate that the recycled ceramic aggregates can reduce dry shrinkage effectively. The recycled ceramic coarse sand replacement ratio is a major factor influencing drying shrinkage of mortar. The fly ash replacement ratio has greater influences on the drying shrinkage of mortar at early stage(≤7d), and the influence becomes smaller after 7d. And it has the most important influence on the drying shrinkage of mortar when the fly ash replacement ratio is 10%.

英文名 : Dry Shrinkage of Recycled Ceramic Mixed Sand Mortar

刊期 : ２０15年第4期

关键词 : 废陶瓷再生粗砂；特细砂；正交试验；干缩性能

Key words : Recycled ceramic coarse sand; Ultra fine sand; Orthogonal experiment; Drying shrinkage

刊期 : ２０15年第4期

DOI :

文章编号 : 1000-4637（2015）04-54-05

基金项目 : 国家自然科学基金项目（50902107）；河南省科技厅科技攻关项目（142102310245）；河南省高等学校重点科研项目（15B560006）

作者 : 刘俊华1，刘凤利2，3，张承志2

单位 : 1.开封大学土木建筑工程学院, 475004；2.河南大学材料与结构研究所, 开封 475004 3.武汉理工大学硅酸盐建筑材料国家重点实验室，430070

刘俊华1，刘凤利2，3，张承志2

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参考文献

引用本文

Abstract: Influence of recycled ceramic aggregates on drying shrinkage of mortar was researched by comparison test on drying shrinkage of mortar with different aggregates. Based on orthogonal trial, the factors influencing the drying shrinkage of mortar, such as the recycled ceramic coarse sand replacement ratio, the water-binder ratio and the fly ash replacement ratio, were investigated. The results indicate that the recycled ceramic aggregates can reduce dry shrinkage effectively. The recycled ceramic coarse sand replacement ratio is a major factor influencing drying shrinkage of mortar. The fly ash replacement ratio has greater influences on the drying shrinkage of mortar at early stage(≤7d), and the influence becomes smaller after 7d. And it has the most important influence on the drying shrinkage of mortar when the fly ash replacement ratio is 10%.

关键词:

废陶瓷再生粗砂；特细砂；正交试验；干缩性能

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