稻壳灰和钢渣在水泥沥青砂浆中的应用研究  

Application Research of Rice Husk Ash and Steel Slag in Cement Asphalt Mortar

作　　者：王晨[1] 张登峰 胡振华[1] 周逸 薛永杰[1] 

机构地区：[1]武汉理工大学硅酸盐建筑材料国家重点实验室,武汉430070 [2]武汉工大土木工程检测公司,武汉430070

出　　处：《武汉理工大学学报（交通科学与工程版）》2018年第1期140-143,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家重大科学仪器设备开发专项项目(2013YQ160501);国家自然科学基金项目(51608411)资助

摘　　要：将稻壳灰、钢渣加入到CA砂浆中,研究其资源再利用的可行性.通过对各组不同稻壳灰、钢渣掺量的CA砂浆进行施工性能和物理力学性能验证,得到运用到CA砂浆中稻壳灰和钢渣的最佳配比.并通过X射线衍射分析、扫描电镜分析等分析手段,从微观角度阐述最佳配比稻壳灰和钢渣的加入对CA砂浆所产生的宏观性能改变的机理.结果表明,当在复合胶凝材料中钢渣质量分数低于20%,稻壳灰质量分数低于60%应用到CA砂浆中时,对CA砂浆施工性能和物理力学性能影响不大,并且以10%的钢渣,45%的稻壳灰和40%的水泥复合时CA砂浆的各项性能最佳,此时CA砂浆的抗冻性能和抗干缩性能同时得到了提升.The feasibility of reusing resources of cement asphalt mortar（CA）with rice husk ash and steel slag was studied.The optimal proportion of rice husk ash and steel slag in CA mortar was determined by a series of verification of construction performance and physical and mechanical performance for different dosage of rice husk ash,steel slag in CA mortar.By using XRD and SEM,the mechanism of macro performance change with the optimal proportion of rice husk ash and steel slag in CA mortar was revealed from the micro perspective.The results show that the construction performance and physical and mechanical performance of CA mortar change little when the dosage of steel slag is lower than 20% and rice husk ash content lower than 60% in composite cementitious materials.All the performance will be the best with the dosage of BOFS 10%,RHA 45% and cement 40%.The Antifreeze performance and anti-dry shrinkage of CA mortar will improve at the same time.

关 键 词：稻壳灰 钢渣 CA砂浆 施工性能 机理 

分 类 号：U414[交通运输工程—道路与铁道工程]