摘要
本文研究了石子和砂子的不同粘土含量、石粉含量对混凝土强度、抗渗性和收缩性能的影响。试验表明,混凝土的强度、氯离子渗透性随砂石中粘土含量的增大而降低,在一定范围内(0～2%),随石粉含量的增大而增大。混凝土的收缩随着骨料中粘土和石粉含量的提高而增大。
Effect of clay content and rock powder of gravel and sand on concrete property is studied in this paper,include compressive strength,impermeability and dry shrinkage.The results show that the compressive strength and diffusion coefficient of chloride ion reduce with the improvement of clay content,but increase with rock powder increase in the range from 0 to 2.0 percent.Dry shrinkage of concrete increases with improvement of clay and rock powder content.
出处
《混凝土》
CAS
CSCD
2003年第8期31-33,共3页
Concrete
关键词
含泥量
强度
氯离子扩散系数
干缩
sediment content
strength
diffusion coefficient of chloride ion
dry shrinkage
