摘要
选取七种不同二氧化硅含量的硅灰作为研究对象,分别掺入C40、C60、C80三种不同强度等级的混凝土中,对不同龄期的抗压强度进行测试分析。结果表明,硅灰的掺入会不同程度提升混凝土的抗压强度,且对后期抗压强度提升更明显,掺有硅灰的混凝土抗压强度与硅灰的二氧化硅含量大致呈正比。
Seven kinds of silica fume with different silica content are selected as the research object,and the compressive strength at different ages of C40,C60 and C80 concrete mixed with these kinds of silica fume are tested and analyzed.The results show that the addition of silica fume can improve the compressive strength of concrete in different degrees,and the later compressive strength is increased more obviously.The compressive strength of concrete mixed with silica fume is approximately proportional to the silica content of silica fume.
出处
《中国建材科技》
2020年第6期59-62,共4页
China Building Materials Science & Technology
基金
青年基金项目“掺低SiO2含量硅灰的混凝土性能研究”(YD-665)。
关键词
二氧化硅含量
硅灰
混凝土
抗压强度
silica content
silica fume
concrete
compressive strength
