钢渣取代量对复合充填胶凝材料性能的影响

硅酸盐通报 ›› 2016, Vol. 35 ›› Issue (9): 2967-2972.

钢渣取代量对复合充填胶凝材料性能的影响

董越;杨志强;高谦

北京科技大学金属矿山高效开采与安全教育部重点实验室,北京,100083;北京科技大学金属矿山高效开采与安全教育部重点实验室，北京 100083; 金川集团股份有限公司镍钴资源综合利用国家重点实验室，金昌 737100

出版日期:2016-09-15 发布日期:2021-01-18
基金资助:
国家高技术研究发展计划(863计划)(SS2012AA062405)

Effect of Steel Slag Substitution on the Properties of Composite Cementitious Backfill Material

DONG Yue;YANG Zhi-qiang;GAO Qian

Online:2016-09-15 Published:2021-01-18

摘要/Abstract

摘要： 通过对正交试验样本的极差分析得到最优配比，并基于最优配比，对试样中的矿渣采用钢渣进行取代，测试试样的抗压强度、吸水性能和膨胀收缩性能，重点分析了钢渣取代量对复合充填胶凝材料物理力学性能的影响。研究表明：钢渣取代量对试样的物理力学性能有显著影响，随着钢渣取代量的提高，试样的抗压强度逐渐降低，吸水量逐渐升高，收缩率逐渐减小；随着钢渣取代量的提高，试样水化产物中的托勃莫来石、硬硅钙石、水铝钙石和C-S-H逐渐减少，直至消失，而板状的氢氧钙石等水化产物逐渐增多。

关键词: 钢渣;充填胶凝材料;力学性能;微观分析

Abstract: The optimal ratio was obtained by range analysis of orthogonal test , and based on the optimal ratio, the content of GGBS was substituted by different content of steel slag , and those samples were characterized by compressive strength test , water absorption test and expansion-contraction test , the influence of steel slag substitution on the physical and mechanical properties of samples were analyzed . Studies have shown that:steel slag substitution have a significant impact on the physical and mechanical properties of samples , with the substitution of steel slag increased , the compressive strength of samples gradually reduced , water absorption gradually increased , shrinkage rate decreased; with the substitution of steel slag increased , plomberite-14A, xonotlite, hydrocalumite and C-S-H gradually reduced until disappeared , while plate-shaped hydration products gradually increased .

Key words: steel slag;cementitious backfill material;mechanical property;microstructure analysis

中图分类号:

TD861

董越;杨志强;高谦. 钢渣取代量对复合充填胶凝材料性能的影响[J]. 硅酸盐通报, 2016, 35(9): 2967-2972.

DONG Yue;YANG Zhi-qiang;GAO Qian. Effect of Steel Slag Substitution on the Properties of Composite Cementitious Backfill Material[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2016, 35(9): 2967-2972.