不同应变速率下赤泥混凝土单轴抗压性能研究  

Research on the Uniaxial Compressive Analyze of Electrolytic Manganese Slag Concrete Under Dynamic Loading

作　　者：龙昌鑫 杨钊 李利丹 李杰 Long Changxin;Yang Zhao;Li Lidan;Li Jie(School of Architecture and Engineering,Kaili University,Kaili,China)

机构地区：[1]凯里学院建筑工程学院,贵州凯里

出　　处：《科学技术创新》2025年第6期201-204,共4页Scientific and Technological Innovation

基　　金：2023年度凯里学院校级专项课题(高质量发展研究专项):(编号:2023XJZX0307);国家民委2023年度高等教育教学改革研究项目(编号:23178):服务民族地区现代化建设的《高层建筑结构与抗震》“课程思政”建设。

摘　　要：针对赤泥混凝土在不同应变速率作用下的单轴抗压性能问题,使用了岩石与混凝土力学试验机,在4种赤泥掺量、4种应变速率条件下进行赤泥混凝土动态单轴抗压试验,分析不同应变速率作用下赤泥混凝土的单轴抗压性能、峰值应变、弹性模量及各条件下的破坏形态。结果表明应变速率增加会对赤泥混凝土的抗压强度、峰值应变、弹性模量造成不同程度的影响,应变速率的增强或赤泥掺量的增加均会降低赤泥混凝土的抗压强度、峰值应变、弹性模量,赤泥混凝土表观破坏加剧,骨料露出或脱落,贯穿缝出现。To address the issue of uniaxial compressive performance of red mud concrete under different strain rates,a rock and concrete mechanics testing machine was used to conduct dynamic uniaxial compressive tests on red mud concrete under four different red mud dosages and four strain rates.The uniaxial compressive performance,peak strain,elastic modulus,and failure modes of red mud concrete under different strain rates were analyzed.The results indicate that an increase in strain rate will have varying degrees of impact on the compressive strength,peak strain,and elastic modulus of red mud concrete.Increasing the strain rate or the amount of red mud added will reduce the compressive strength,peak strain,and elastic modulus of red mud concrete.The apparent damage of red mud concrete will intensify,with exposed or detached aggregates and the appearance of through joints.

关 键 词：应变速率 赤泥 赤泥混凝土 动态单轴抗压 

分 类 号：TU528.01[建筑科学—建筑技术科学]