硅酸盐通报2024，Vol.43Issue(6)：2149-2156,8.
原状海砂对混凝土力学性能的影响
Influence of Undisturbed Sea Sand on Mechanical Properties of Concrete
摘要
Abstract
In order to explore the mechanical properties of undisturbed sea sand concrete with high chlorine concentration and high shell content,taking the chloride ion content and shell content of sea sand as variables,nine groups of sea sand concrete were designed and prepared to carry out concrete cube compressive strength test and uniaxial compressive stress-strain curve test,and compared with ordinary concrete.The results show that with the increase of chloride ion content,the pore structure of concrete becomes finer,the early strength increases,the peak stress of uniaxial compressive stress-strain complete curve increases,the peak strain decreases,and the elastic modulus increases.With the increase of shell content,the slump of concrete decreases significantly,the pore structure of concrete becomes looser,the strength decreases,and the peak stress of uniaxial compressive stress-strain complete curve decreases,the peak strain increases,and the elastic modulus decreases.Finally,based on the existing models,the formula for calculating the model parameters of chloride ion content and shell content is put forward.关键词
海砂混凝土/原状海砂/单轴受压/应力-应变全曲线/氯离子含量/贝壳含量Key words
sea sand concrete/undisturbed sea sand/uniaxial compression/stress-strain complete curve/chlorine ion content/shell content分类
建筑与水利引用本文复制引用
郑建岚,王雅思,叶艳..原状海砂对混凝土力学性能的影响[J].硅酸盐通报,2024,43(6):2149-2156,8.基金项目
国家自然科学基金联合基金重点支持项目(U1605242) （U1605242）
福建省财政厅专项(闽财指[2022]840号) （闽财指[2022]840号）
福建省自然科学基金项目(2021J011231) （2021J011231）
福建省教育厅中青年教师教育科研项目(JAT200368) （JAT200368）
