Effect of basalt fiber on chloride ion penetration of Reactive Powder Concrete

In order to investigate the influence of the basalt fiber on the durability of reactive powder concrete (RPC), chloride ion penetration test of nine groups of RPC containing basalt fiber and three groups of RPC without fiber was carried out, carbonization test of one group of basalt fiber RPC was performed. The result showed that, the electrical flux of RPC without basalt fiber varied from104-120C, the chloride ion permeability was very low. The electrical flux of basalt fiber RPC was less than 100C, so the chloride ion permeability can be ignored. When water-to-binder ratio (W/B) was 0.22 and volume fraction of basalt fiber was 0.10%, the chloride ion permeation resistance of specimens was the best. The basalt fiber RPC had good carbonization resistance, and the carbonation depth was zero in 28 days.