Research on corrosion resistance of basalt fiber reinforced concrete under sulfate wet dry cycle
Taking basalt fiber concrete as the research object,it carried out dry wet cyclic erosion tests under different sulfate concentrations,focusing on the variation law of compressive strength,splitting tensile strength,relative dynamic elastic modulus and quality change with dry wet cycles,and the influence of different basalt fiber content on the erosion deterioration process.The test results show that the sulfate concentration has a significant effect on the corrosion deterioration of concrete with different fiber volume under the dry wet cycle.With the increase of sulfate concentration,the compressive strength,splitting compressive strength and mass change curve under the dry wet cycle condition gradually evolved from the approximate linear growth to the"pot cover"increase first and then decrease,the maximum value corresponding to the dry wet cycle cycle is 30,and the relative dynamic elastic modulus evolved from"lying L-type"to"lying S-type".The addition of appropriate amount of fiber can effectively improve the compactness of concrete and weaken the influence of sulfate erosion on the deterioration of concrete performance.
万方数据
维普
