摘要
利用江西锂云母提锂渣、白色矿粉、硅灰、石英粉和白色硅酸盐水泥制备白色活性粉末混凝土(WRPC),采用正交试验探讨了各组分材料在多组分配伍体系中对WRPC力学性能的影响。结果表明,锂渣和矿粉能互相激发活性,发挥复合协同效应,锂渣还有利于增强材料的韧性;适宜掺量的硅灰和石英粉对提高WRPC的强度具有重要作用。利用锂渣和矿粉,不掺纤维,采用常规工艺可制备28 d抗压强度为120 MPa的WRPC材料。
White reactive powder cement(WRPC) was prepared by using Jiangxi lithium slag from Jiangxi lepidolite,white mineral powder,silica fume,quartz powder and white Portland cement. The effect of various components in multicomponent system on the strength performance of WRPC was discussed by orthogonal test. The results show that lithium slag and mineral powder can stimulate the activity of each other,play a synergistic effect on multicomponent system of cement. WRPC with proper lithium slag increases toughening of material. Proper silica fume and quartz powder can improve compressive strength of WRPC. WRPC material with 28 d compressive strength of 120 MPa can be prepared by using lithium slag and mineral powder in the conventional process and no fiber.
作者
李金臻
黄少文
吴飞龙
LI Jinzhen;HUANG Shaowen;WU Feilong(School of Materials Science and Engineering,Nanchang University,Nanchang 330000,China;Jiangxi Yinshan White Cement Co. Ltd.,Ji'an 343200,China)
出处
《新型建筑材料》
北大核心
2019年第1期22-24,52,共4页
New Building Materials
基金
国家自然科学基金项目(21466023)
关键词
活性粉末混凝土
锂渣
白色矿粉
协同作用
强度
reactive powder concrete
lithium slag
white mineral powder
synergistic effect
strength
