摘要
混凝土的抗折抗压强度是道路水泥混凝土路面极为重要的指标,而作为占混凝土体积四分之三以上的集料对其强度有着显著的影响,只有当集料与路面混凝土基体的强度和刚度相匹配时,才能有效地通过调解集料来调整混凝土的性能。主要研究粗集料的用量、强度、粒径、级配、形貌等特性对路面用水泥混凝土强度的影响。
The compressive and flexural strength of concrete is a distinctly important index of pavement cement concrete, and the aggregate which takes up more than three fourths the volume of concrete has significant influence on its strength. Only when the aggregate matches with the strength and rigidity of pavement concrete matrix, the performance of concrete can be adjusted effectively through adjusting aggregate. The influence of dosage, strength, particle size, gradation and feature of coarse aggregate on pavement cement concrete strength is mainly researched.
出处
《北方交通》
2013年第8期18-21,共4页
Northern Communications
关键词
水泥混凝土
粗集料
级配
Cement concrete
Coarse aggregate
Gradation
