马冬冬,马芹永,袁璞

• 1:安徽理工大学矿山地下工程教育部工程研究中心

摘要(Abstract)：

为研究水剂比、气温和水温对静态破碎剂膨胀性能的影响,进行了相同条件下5种水剂比和水剂比为0.30时6种气温与3种水温下静态破碎剂的膨胀性能试验,得到了相应条件下的体积膨胀率和拌合物温度-时间曲线。试验结果表明:静态破碎剂膨胀可分为拌合物硬化、裂纹扩展、体积快速膨胀和膨胀速度减慢四个过程。拌合物温度-时间曲线分为温度迅速上升、恒温、继续上升和下降四个阶段。通过对比不同水剂比的体积膨胀率,得出水剂比为0.30时膨胀效果较好;气温为16℃时体积膨胀率较好;采用高水温拌合可加快静态破碎剂的膨胀过程。

关键词(KeyWords)： 静态破碎剂;拌合物温度-时间曲线;体积膨胀率

Abstract:

Keywords:

基金项目(Foundation): 安徽省学术和技术带头人资助项目(2010-05)

作者(Author): 马冬冬,马芹永,袁璞

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