废砂浆粉低温煅烧激发活性的研究  

Effect of low temperature waste mortar firing inspire

作　　者：李炜 孙南屏[2] 何健恒[2] 

机构地区：[1]奥宸地产(集团)有限公司,广东深圳518048 [2]广东工业大学土木与交通工程学院,广东广州510006

出　　处：《砖瓦》2015年第11期10-13,共4页Brick-tile

基　　金：硅砂资源利用国家重点实验室资助

摘　　要：研究了不同煅烧温度对废砂浆块易磨性、流动度、质量损失的影响,以及废砂浆粉的活性激发效果.实验表明,废砂浆粉筛余率和胶砂流动度随着煅烧温度的升高而显著降低.经600 ℃热处理,掺30 %废砂浆粉混合水泥的28 d 强度增长了3.01 MPa,结合分离废弃混凝土中砂浆组分的最佳温度在500 ℃～600 ℃,确定了600 ℃是分离和激发废砂浆活性的最佳温度.The effect of different calcination temperatures on the abrasive, fluidity, quality loss and the activity ofwaste mortar are studied. Experimental results show that waste mortar powder sieve residue rate and mortar fluidityas the calcination temperature increases significantly reduced. The 600 degrees Celsius heat treatment, mixed with30% of waste mortar powder mixed cement 28 day strength increase of 3.01 MPa, combined with separation of wasteconcrete mortar was the optimum temperature in the conclusion of 500 to 600 degrees to determine the 600 degreesis the separation and stimulate the optimal temperature for activity of waste mortar.

关 键 词：废砂浆粉 煅烧 粉磨性能 强度 活性 

分 类 号：TU522.09[建筑科学—建筑技术科学]