温湿度对油菜秸秆混凝土抗碳化性影响试验研究

Experiment on the Influence of Temperature and Humidity on the Resistance to Carbonation of Rape Straw Concrete

通过设计完全试验,在水灰比为0.45,秸秆纤维体积掺量为0.5%,秸秆纤维长度区间为15~20 mm的条件下,以温度(10℃、20℃、30℃、40℃)和相对湿度(40%、50%、60%、70%)为变量,探究温度和相对湿度对油菜秸秆基纤维混凝土抗碳化性能的影响。试验结果表明:相对湿度和温度对油菜秸秆基纤维混凝土碳化深度的影响皆较大,随着相对湿度和温度的上升,碳化深度几乎呈线性增长,且温度对油菜秸秆基纤维混凝土碳化深度的影响大于相对湿度对油菜秸秆基纤维混凝土碳化深度的影响。

This paper has designed a complete experiment.Under the condition that the water-cement ratio is 0.45,the volume of straw fiber is 0.5%,and the length of straw fiber ranges from15 to 20mm,with the temperatures(10℃,20℃,30℃,40℃)And relative humidities(40%,50%,60%,70%)as variables,the influence of temperature and humidity on the anti-carbonization performance of rape straw-based fiber concrete is examined.The test results show that relative humidity and temperature have significant effects on the carbonization depth of rape straw-based fiber concrete.With the increase of relative humidity and temperature,the carbonization depth rises almost linearly,and the temperature has a greater impact on the carbonization depth of rape straw-based fiber concrete than the relative humidity.