广西科技大学学报2026，Vol.37Issue(2)：35-42,8.DOI:10.16375/j.cnki.cn45-1395/t.2026.02.005
不同龄期珊瑚海水海砂混凝土单轴受压力学性能研究
Uniaxial compressive mechanical properties of coral seawater sea-sand concrete at different ages
摘要
Abstract
In order to explore the mechanical properties of coral seawater and sea-sand concrete(CSSC)under uniaxial compression at different ages,nine standard cube specimens and nine cylinder specimens were designed and manufactured with age as the variable parameter,and the cube compressive and axial compressive tests were carried out respectively.The failure modes of the specimens were observed,and the compressive stress-strain curves of CSSC were obtained.The effects of age on the compressive strength,axial compressive strength and axial compressive stiffness of CSSC cubes were analyzed.The test results show that CSSC exhibits high early strength,and at 7 days,the cube compressive strength and axial compressive strength reach 87.85%and 70.58%of their corresponding 28-day values,respectively.By 14 days,the compressive strength has essentially reached the 28-day level,after which the rate of strength development slows down.The axial compressive stiffness of CSSC shows an increasing-then-decreasing trend with curing age,reaching a maximum at 14 days;at 28 days,it becomes comparable to that of ordinary concrete.Based on the experimental results,the conversion formula of CSSC axial compression-cube compressive strength at different ages was proposed,and the uniaxial compression constitutive equation of CSSC was established.关键词
珊瑚海水海砂混凝土(CSSC)/龄期/单轴受压/抗压强度/轴压刚度Key words
coral seawater sea-sand concrete(CSSC)/curing age/uniaxial compression/compressive strength/axial compressive stiffness分类
建筑与水利引用本文复制引用
包尔康,陈宇良,叶培欢,张绍松..不同龄期珊瑚海水海砂混凝土单轴受压力学性能研究[J].广西科技大学学报,2026,37(2):35-42,8.基金项目
国家自然科学基金项目(52368013,51908141) （52368013,51908141）
广西自然科学基金项目(2024GXNSFBA010364) （2024GXNSFBA010364）
广西重点研发计划项目(桂科AB23075196)资助 （桂科AB23075196）
