... highly faulted reservoir 复杂断块 highly fine-grained sand 特细砂 highly pure PAC 高纯聚合氯化铝 ...
基于6个网页-相关网页
特细山砂 Super Fine Mountain Sand
The main research content is the performance of super-fine sand concrete.
本文主要研究使用特细砂配制普通混凝土的性能指标。
参考来源 - 特细砂混凝土的力学性能研究With the amount of fly ash from 15%to 40%,ultra-fine sand compressive strength of concrete show a downward trend.
随着粉煤灰掺量从15%增加到40%,特细砂混凝土抗压强度呈现下降趋势。
参考来源 - 特细砂高性能混凝土研究与应用The extra fine sand mortar has great shrinkage, low toughness, and it is easy to crack, so the paper focuses on shrinkage ratio, crack index and toughness.
特细砂水泥砂浆收缩大,韧性低,易开裂,所以收缩率、压折比及裂缝指数是本论文主要的考察指标。
参考来源 - 干拌抗裂砂浆的配制及性能研究By modification with water- retentive agents and organic bonding admixtures, one dry-mixed superfine sand mortar used as ceramic tile bonding can be prepared with good workability, adhesive capacity and climate resistant.
采用保水剂、粘结剂改性,可配制施工性、粘结性、耐候性良好的特细砂瓷砖粘结砂浆。
参考来源 - 瓷砖粘结砂浆的配制及性能研究That instead of using ultra-fine sand,sand preparation of the mobility of concrete,with the two concrete is totally feasible.
说明采用特细砂代替中、粗砂配制大流动性混凝土,对二级配混凝土是完全可行的。
参考来源 - 水工特细砂泵送混凝土压力泌水率研究与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，对特细砂混凝土塑性收缩防裂措施进行研究，具有重要的现实意义。
Thus, research on measures for superfine sand concrete to get rid of plastic shrinkage cracks is of important practical significance.
其组成材料主要为：水泥、聚苯乙烯泡沫颗粒、高分子粘结剂、纤维、膨胀珍珠岩及特细砂等。
Its main compositive materials are: cement, EPS, high molecule binder, fiber, expanded pearlite and super-fine sand.
目前关于塑性收缩裂缝的研究几乎都集中在中粗砂混凝土，对于特细砂混凝土塑性收缩裂缝及其相关问题的研究几乎没有。
But almost all the attention of the plastic shrinkage crack are focus on the medium and coarse sand concrete and the study of super fine one not found.
应用推荐