摘要
对混掺纳米SiO_(2)-CaCO_(3)的珊瑚海水混凝土进行了静态抗压强度、静态劈裂抗拉强度和动态压缩性能试验,得到了纳米SiO_(2)-CaCO_(3)对珊瑚海水混凝土力学性能的影响规律。结果表明:混掺纳米材料比单掺纳米材料对提升珊瑚海水混凝土力学性能效果更佳;纳米SiO_(2)-CaCO_(3)掺量为2%、混掺比为1∶2时,珊瑚海水混凝土的静态抗压强度、静态劈裂抗拉强度提升幅度最大,分别较基准组提高了27.15%、21.34%,动态压缩性能试验结果与静态抗压强度试验结果较为一致;掺量过大时珊瑚海水混凝土的力学性能会下降,甚至出现负效应。
The static compressive strength,static splitting tensile strength and dynamic compressive properties of coral seawater concrete mixed with nano-SiO_(2)-CaCO_(3) were tested,and the influence of nano-SiO_(2)-CaCO_(3) on the mechanical properties of coral seawater concrete was obtained.The results show that the mechanical properties of coral seawater concrete with nano materials are better than those with nano materials alone.When the content of nano-SiO_(2)-CaCO_(3) is 2%and the mixing ratio is 1∶2,the static compressive strength and static splitting tensile strength of coral seawater concrete increase by 27.15%and 21.34%,respectively,compared with the reference group.The dynamic compressive performance test results are consistent with the static compressive strength test results.When the dosage is too large,the mechanical properties of coral sea water concrete will decline,even have negative effect.
作者
卢军燕
孙明明
LU Junyan;SUN Mingming(Zhengzhou Institute of Business and Technology,Zhengzhou 450014,China;Dalian University of Technology,Dalian 116024,China)
出处
《混凝土》
CAS
北大核心
2022年第1期97-100,共4页
Concrete
基金
国家自然科学基金项目(41472253)。
作者简介
第一作者:卢军燕(1979-),女,副教授,研究方向:土木工程。联系地址:河南省郑州市城东路城北路交叉口中建七局家属院(450014),联系电话:13526510364。
