关键词: 导电混凝土;石墨粉;强度;导电性能;微结构

Abstract: Graphite powder was used to prepare conductive concrete , and its properties and microstructure were investigated .The results show that the strength of conductive concrete reduces with the increase of graphite powder dosage .The electrically resistivity of conductive concrete reduces along with the increase of fineness and content of graphite powder , the temperature rises after electrified , and the concrete shows high heating effect .Graphite powder has little effect on hydration products of the conductive concrete . With the increase of content and fineness of graphite powder , the filling effect of graphite powder is more and more beneficial to form the conductive path .

Key words: conductive concrete;graphite powder;strength;conductivity;microstructure