煤矸石质固土材料固化土的耐久性试验研究

Study on durability experiment of stabilized soil of gangue sialite soil material

为评价煤矸石质固土材料固化土的耐久性能,研究了煤矸石质固土材料固化土的耐水性能、耐干湿循环性能、抗冻融性能以及耐酸、碱、盐腐蚀性能,通过与普通硅酸盐水泥固化土的性能对比,对煤矸石质固土材料固化土的耐久性能进行了试验研究。结果表明,煤矸石质固土材料固化土14 d耐水稳定系数为0.94,耐干湿循环交替系数为0.898,抗冻系数为0.9,煤矸石质固土材料固化土在这3项性能上均优于水泥加固土。耐酸碱盐性能方面,煤矸石质固土材料固化土耐酸性略逊于水泥固化土,而耐碱和盐腐蚀性能明显优于水泥固化土。

In order to evaluate the durability performances of the stabilized soil of gangue sialite soil material, the paper had a study on the water resistance performances of the solidified soil, dry and wet cycling performances, freeze-thaw resistance performances, as well as the acid, alkali and salt corrosion resistance performances of the stabilized soil of gangue sialite soil material. In comparison with the cement solidified soil performances, a test and study was conducted on the solidified soil durability performances of the stabilized soil of gangue sialite soil material. The results showed that 14 days water resistance stability coefficient of the solidified soil with the stabilized soil of gangue sialite soil material was 0.94, the dry and wet cycling altenlative coefficient was 0.898 and the anti freezing coefficient was 0.9. With the stabilized soil of gangue sialite soil material ,the above three performances of the solidified soil all better than the cement solidified soil. In the acid, alkali and salt corrosion resistance performances aspects, with the stabilized soil of gangue sialite soil material, the acid resistance of the solidified soil was slightly lower than the cement solidified soil and the alkali and salt corrosion resistance perform- ances of the solidified soil were obviously better than the cement solidified soil.