摘要
机制砂相比天然砂而言,其颗粒级配差和含有一定量的石粉,不但会影响拌合物质量,而且还影响混凝土后期性能。研究粉煤灰和石粉含量对混凝土性能的影响,改善机制砂混凝土和易性能、强度性能和干缩性能,在工程中进行了广泛的应用,取得了良好的经济效益和社会效益。
The manufactured-sand compared to the natural sand which particle size distribution difference and had a certain amount of powder,not only affect the quality of the mixture,but also affect the late performance of concrete.Studied the fly ash and dust content on the properties of concrete,to improve the performance of the sand concrete workability,strength,performance and drying shrinkage,and a wide range of applications in engineering,achieved good economic and social benefits.
出处
《混凝土》
CAS
CSCD
北大核心
2012年第10期106-107,共2页
Concrete
关键词
机制砂
石粉
混凝土
manufactured-sand
micro-fines
concrete
