矿产综合利用2024，Vol.45Issue(4)：203-210,8.DOI:10.3969/j.issn.1000-6532.2024.04.030
纤维增强铁尾矿砂水泥基材料力学性能和孔隙结构实验
Mechanical Properties and Pore Structure of Fiber Reinforced Iron Tailings Cement-based Materials
摘要
Abstract
This is an article in the field of ceramics and composites.In this article,the effects of IOT and polyvinyl alcohol(PVA)fiber(PF)on the compressive strength,four-point flexural strength,flexural toughness,pore structure of cement-based composites were studied and discussed in detail.The conversion relationship between compressive strength and four-point flexural strength was established.The results showed that the incorporation of IOT had an enhanced effect on the mechanical properties,and this enhanced effect showed a trend of first increasing and then decreasing with the increase in the substitution rate of IOT.However,when PF was added,the mechanical properties under the combined effect of PF and IOT were further improved and showed good toughness.In addition,the internal pores of the matrix with IOT substitution rate of 40％and PF were obviously reduced.Thus,it was concluded that the cement-based composite material had good mechanical properties when the 40％IOT was combined with PF.关键词
陶瓷及复合材料/PVA纤维/铁尾矿砂/力学性能/孔隙结构Key words
Ceramics and composites/Polyvinyl alcohol fiber/Iron ore tailing/Mechanical properties/Pore structure分类
矿业与冶金引用本文复制引用
张海军,李涛,展猛..纤维增强铁尾矿砂水泥基材料力学性能和孔隙结构实验[J].矿产综合利用,2024,45(4):203-210,8.基金项目
陕西省自然科学基金(2021JQ-844) （2021JQ-844）
