关键词: 导电混凝土;碳纤维;强度;导电性能;微结构

Abstract: The electrically conductive concrete , with high electrical conductivity , can be used in the road deicing in winter road and ensure the traffic safety .The carbon fiber was used to prepare conductive concrete, and its properties and microstructure were investigated .The results show that carbon fiber has disadvantage on the workability of fresh concrete , but it still can meet the construction requirements . With the increase of carbon fiber content , the compressive strength of conductive concrete decreases , but the splitting tensile strength increases .The density of the microstructure of the conductive concrete with reduces, thus leads to the change of the properties .

Key words: conductive concrete;carbon fiber;strength;electrical conductivity;microstructure