沥青-水泥复合防水材料的制备及性能研究

发布时间：2018-07-04 21:24

本文选题：特殊环境 + 快硬硫铝酸盐水泥　；参考：《材料导报》2014年S2期

【摘要】：在特殊环境深井巷道开挖和修复过程中,由于巷道围岩极其破碎,围岩松动破碎范围大,直接影响井下安全和高效生产,需要灌浆加固。将快硬硫铝酸盐水泥进行改性,通过一定的复合工艺将它与改性的沥青进行复合。在聚合物乳液和硫铝酸盐水泥组成与其流变性能、力学性能及凝结时间关系研究的基础上,系统研究沥青乳液的掺入对其力学性能的影响,制备出沥青-水泥复合灌浆材料。此材料具有低水灰比、高流动性、柔韧性好、适当变形、界面粘结力强度高,早强、高强、凝结时间短以及环保、生产成本低等优良性能。应用于某些对流动性和凝结时间有较高要求的工程上,可扩大工程选材的范围,并实现裂缝修补灌浆材料绿色环保高性能化。
[Abstract]:In the course of excavation and repair of deep mine roadway in special environment, because the surrounding rock of roadway is extremely broken, and the loosening and breaking range of surrounding rock is large, which directly affects the safe and efficient production of underground mine, it needs grouting reinforcement. The fast-hardening sulphoaluminate cement was modified and combined with the modified asphalt by a certain compounding process. Based on the study of the relationship between the composition of polymer emulsion and sulphoaluminate cement and their rheological properties, mechanical properties and setting time, the influence of asphalt emulsion on mechanical properties was studied systematically, and the asphalt cement composite grouting material was prepared. This material has good properties such as low water-cement ratio, high fluidity, good flexibility, proper deformation, high interfacial bond strength, early strength, high strength, short setting time, environmental protection, low production cost and so on. It can be applied to some projects with high demand for fluidity and setting time. It can expand the scope of material selection and realize the green environmental protection and high performance of crack repair grouting material.
【作者单位】：长江水利委员会长江科学院;水利部水工程安全与病害防治工程技术研究中心;国家大坝安全工程技术研究中心;
【分类号】：TU57

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