摘要
【目的】探究海水侵蚀环境下水泥土所表现出的抗拉强度劣化特性。【方法】选用镍铁渣粉和矿渣作为复合外掺料,通过开展劈裂间接抗拉试验,研究不同镍铁渣粉掺量、不同养护环境(清水与海水)对水泥土的抗拉强度、表观侵蚀以及破坏性状的影响。【结果】清水环境和海水环境水泥土中掺入镍铁渣粉,可提升其抗拉强度,其抗拉强度随掺量增加先增大后减小,最优镍铁渣粉掺量为45%,且两种养护条件下均表现为脆性破坏。【结论】研究成果可为沿海地区软基处理工程提供技术参考。
[Purposes]In order to explore the deterioration characteristics of the tensile strength of cement soil under seawater erosion environment.[Methods]Ferronickel slag powder and slag are selected as composite additives,the splitting indirect tensile test was carried out to study the effects of different amounts of ferronickel slag powder and different curing environments(clean water and sea water)on the tensile strength,apparent erosion and damage properties of cemented soil.[Findings]The test results show that the tensile strength of cement soil in clean water environment and sea water environment can be improved by adding ferronickel slag powder.The tensile strength first increases and then decreases with the increase of the amount of ferronickel slag powder.The optimal amount of ferronickel slag powder is 45%,and both curing conditions show brittle failure.[Conclusions]The research results can provide technical reference for soft foundation treatment projects in coastal areas.
作者
范泽忠
FAN Zezhong(Fujian Wanlian Concrete Co.,Ltd.,Nanping 353000,China)
出处
《河南科技》
2023年第2期70-74,共5页
Henan Science and Technology
关键词
强度劣化
镍铁渣粉
水泥土
海水侵蚀
strength deterioration
ferronickel slag powder
cemented soil
seawater erosion
作者简介
范泽忠(1984-),男,本科,工程师,研究方向:水泥基材料。
