气化渣对碱激发粉煤灰水泥砂浆力学性能的影响  

Effect of Gasification Slag on Mechanical Properties of Alkali-activated Fly Ash Cement Mortar

作　　者：申旺 程臻赟 陈海霞 缪函壹 龙婷 杜顺贵 Shen Wang;Chen Zhenyun;Chen Haixia;Miu Hanyi;Long Ting;Du Shungui(Collage of Civil Engineering,North Minzu University,Yinchuan,Ningxia 750021)

机构地区：[1]北方民族大学土木工程学院,宁夏银川750021

出　　处：《江西建材》2021年第8期7-8,共2页Jiangxi Building Materials

摘　　要：试验测试了气化渣替代率分别为0、10%、20%和30%的碱激发气化渣粉煤灰水泥砂浆的新拌性能以及养护温度分别20℃、60℃两种不同养护条件下的碱激发气化渣粉煤灰砂浆物理力学性能。结果表明:气化渣会导致碱激发粉煤灰水泥砂浆流动度降低。气化渣掺量越多,体系流动度下降幅度越大。碱激发气化渣粉煤灰复合水泥体系的初始凝结时间随着气化渣掺量的增加呈线性显著降低。常温(20℃)养护条件下,随气化渣掺量增大,碱激发气化渣粉煤灰砂浆抗压强度呈降低趋势。高温(60℃)养护条件可以显著提高碱激发气化渣粉煤灰砂浆抗压强度。The fresh performance of gasification slag and fly ash mortar with gasification slag substitution rate of 0, 10%, 20% and 30%, and the physical and mechanical properties of the mortar with gasification slag and fly ash mortar under two different curing conditions of 20℃ and 60℃, respectively, were tested. The results show that gasification slag can reduce the fluidity of alkali activated fly ash cement. The more the content of gasification slag is, the more the fluidity decreases. The initial setting time of alkali activated gasification slag-fly ash composite cement system decreases linearly with the increase of gasification slag content. Under the condition of curing at room temperature(20℃), the compressive strength of fly ash mortar with alkali activated gasification slag decreases with the increase of the content of gasification slag. The high temperature(60℃) curing condition can significantly improve the compressive strength of alkali activated gasification slag-fly ash mortar.

关 键 词：气化渣 力学性能 碱激发粉煤灰水泥 

分 类 号：TQ536.4[化学工程—煤化学工程] TQ177.62