硬脂酸钙对粉煤灰-矿渣基碱激发发泡材料的性能探究  

Exploration of Calcium Stearate on Properties of Fly Ash-Slag Based Alkali-Activated Foaming Material

作　　者：张延博 刘泽[1] 韩乐 王栋民[1] 亢一星 谢福助 ZHANG Yan-bo;LIU Ze;HAN Le;WANG Dong-min;KANG Yi-xing;XIE Fu-zhu(Research Institution of Concrete and Eco-Materials,School of Chemical and Environmental Engineering, China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院混凝土与环境材料研究所

出　　处：《硅酸盐通报》2019年第6期1868-1872,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家重点研发计划(2017YFC 0703200)

摘　　要：以循环流化床粉煤灰及高炉矿渣为主要原材料,在发泡剂掺量占固废原料为5%的情况下,通过改变稳泡剂掺量,制备一系列碱激发发泡材料。并探究硬脂酸钙掺量变化对于碱激发发泡材料体系宏观力学性能,孔径分布及微观形貌的影响。研究表明,硬脂酸钙的掺入,大大提高了浆体内气泡的稳定性,但掺量超过1.25%时,浆体黏度大大提升,工作性能变差,气泡分布不均匀,强度明显降低。Circulating fluidized bed fly ash and blast furnace slag were used as the main materials, and a series of alkali-activated foaming materials were prepared with different dosage of foam stabilizer while the foaming agent are fixed on 5%. It is also investigated the mechanical properties, pore size distribution, and microstructure of alkali-activated foaming materials. The addition of calcium stearate greatly improves the stability of the bubble in the foam matrix. When the dosage of calcium stearate increased to 1.25%, viscosity of the slurry is greatly enhanced, the workability of the slurry become worse, and then the distribution of the bubbles is non-uniform.

关 键 词：粉煤灰 矿渣 碱激发 硬脂酸钙 

分 类 号：X752[环境科学与工程—环境工程]