摘要
采用内掺0%、10%、20%、30%、40%和50%的石灰石粉代替等量砂子来配制浮石混凝土,研究不同掺量的石灰石粉对轻骨料混凝土工作性能、抗压强度和劈裂抗拉强度的影响,并借助扫描电镜观察分析石灰石粉对轻骨料混凝土性能的影响。结果表明,石灰石粉的最佳掺量为30%,混凝土内部掺入石灰石粉后生成碳铝酸盐,使水泥石结构更密实,石灰石粉的填充作用有利于轻骨料混凝土后期强度的增加。
Make the pumice concrete doped 0%,10%,20%,30%,40%,50%limestone power instead of the same amount of sand.Then study the compressive strength and splitting tensile strength and study the compressive strength and splitting tensile strength.And observe and analyze the mechanism of doping limestone powder's impact on the post-performance lightweight aggregate concrete by means of SEM.The results show that:the optimal amount of limestone powder is 30%.Internal pumice concrete limestone powder generates carbon aluminate which makes cement structure more dense.Besides limestone powder's filling effect is beneficial to the development of the late strength of pumice concrete.
出处
《中国科技论文》
CAS
北大核心
2015年第1期51-54,共4页
China Sciencepaper
基金
高等学校博士学科点专项科研基金资助项目(20121515110002)
内蒙古自治区自然科学基金资助项目(2013MS0720)
内蒙古自治区科技计划资助项目(20130425)
内蒙古自治2013年博士研究生科研创新项目(B20131012904Z)
关键词
轻骨料混凝土
石灰石粉
力学性能
抗压强度
劈裂抗拉强度
微观结构
lightweight aggeregate concrete
limestone powder
mechanical properties
compressive strength
splitting tensile strength
microstructure