黑龙江科技大学学报2025，Vol.35Issue(6)：888-896,9.DOI:10.3969/j.issn.2095-7262.2025.06.004
炉底渣-粉煤灰胶结充填体强度的演化规律
Strength evolution law behind bottom slag-fly ash cemented backfill
摘要
Abstract
This paper intends to investigate the strength evolution law behind bottom slag-fly ash ce-mented backfill.The study is accomplished by employing the response surface methodology(RSM)with central composite design(CCD)to develop the models with the response value of the compressive strength of the backfill at different ages;and revealing the individual and interactive effects of the three independent variables including binder-to-tailings ratio,Talbol gradation index of bottom ash,and super-plasticizer content on the strength of the backfill.The results indicate that the strength of the backfill is influenced not only by the individual factors but also significantly by the interactions between the two fac-tors.Specifically,the early-age compressive strength is considerably affected by the interaction between the binder-to-tailings ratio and the gradation of bottom ash,while the later-age compressive strength is significantly influenced by the interaction between the binder-to-tailings ratio and the superplasticizer con-tent.The optimal mix proportions from the applications are compressive strengths of 0.88,1.61,3.93,and 5.2 MPa within 3,7,28 and 90 days,respectively,meeting the strength requirements for backfill in field applications.关键词
充填材料/响应面法/抗压强度/回归模型Key words
filling material/response surface method/compressive strength/regression model分类
矿业与冶金引用本文复制引用
Chen Weixin,Zhang Guohua,Qin Tao,Sha Jin,Hou Xiangang,Guan Xianhua..炉底渣-粉煤灰胶结充填体强度的演化规律[J].黑龙江科技大学学报,2025,35(6):888-896,9.基金项目
黑龙江省省属高校基本科研业务费项目(2023-KYYWF-0546) （2023-KYYWF-0546）
