摘要
以电厂排放的固体废弃物脱硫石膏、粉煤灰为主要原料,压制成型制备砖材,研究了激发剂对其物理力学性能的影响。研究结果表明:随着激发剂掺量的增加,脱硫石膏-粉煤灰砖的强度先升高后降低。粉煤灰掺量为40%,激发剂掺量为1%,脱硫石膏-粉煤灰砖在龄期14 d时,其抗压强度为6.99 MPa,同时其软化系数为0.75。
The desulfurized gypsum which is a kind of solid waste from a power plant and fly ash are used as the main raw materials, and the bonding bricks are made by pressing and molding. The effects of alkaline activator on the physical and mechanical properties of desulphurization gypsum-fly ash brick were studied. The results show that: The strength of desulphurized gypsum-fly ash brick first rises and then decreases with the increase of the amount of activator. When the amount of fly ash is 40%, the dosage of activator is 1%, the compressive strength of the desulphurized gypsum-fly ash brick is 6.99 MPa at the age of 14 days, while the softening coefficient of it is 0.75.
作者
徐卓越
汪潇
高国防
金彪
张小婷
杨留栓
Xu Zhuoyue;Wang Xiao;Gao Guofang;Jin Biao;Zhang Xiaoting;Yang Liushuan(College of Materials and Chemical Engineering, Henan University of Urban Construction, Pingdingshan, Henan 467036;Henan Building Materials Reseatch and Design Institude Co., Ltd., Zhengzhou, Henan 450002;School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, Henan 471003)
出处
《非金属矿》
CAS
CSCD
北大核心
2019年第4期31-33,共3页
Non-Metallic Mines
基金
国家自然科学基金面上项目(51674097)
河南省高等学校重点科研项目计划(19A430007)
河南城建学院学术技术带头人资助项目(YCJXSJSDTR201706)
平顶山市科技局资助项目(2017010(10.5))
河南省城市固废综合处置与生态利用协同创新中心开放课题
关键词
脱硫石膏
粉煤灰
碱性激发剂
软化系数
FGD gypsum
fly ash
alkaline activator
softening coefficient
