钢渣稳定土的水稳性试验研究-《郑州大学学报(工学版)》

文章信息/Info

作者:: 乐金朝; 李新明; 乐旭东.; 郑州大学,水利与环境学院,河南,郑州,450001, 郑州大学,水利与环境学院,河南,郑州,450001, 郑州大学,水利与环境学院,河南,郑州,450001

Keywords:: steel slag stabilized soil; roadbed; water stability; Dry and wet cycle

摘要:: 针对路基工程施工需要,对于两种不同钢渣掺量的钢渣稳定土在不同饱水时间以及不同失水一吸水干湿循环次数下的无侧限抗压强度和劈裂强度的变化规律进行了研究,并在最佳含水率附近探讨了钢渣稳定土对成型含水率的敏感性.试验结果表明,时于钢渣掺量为8%和15%的钢渣稳定土,在饱水试验和干湿循环试验中.钢渣稳定土的抗压强度和劈裂强度在初期急剧减小,最终均趋于稳定值,且随着钢渣掺量的增加,其水稳性得到改善.随着龄期的增长,成型含水率的变化时钢渣稳定土强度的影响逐渐减小,增加钢渣掺量也能够有效降低成型含水率变化对其强度的影响.

Abstract:: According to the construction needs of subgrade engineering, the variation law of unconfined compressive strength and splitting strength of two different steel slag stabilizing soils under different water saturation times and different times of water loss and water absorption dry and wet cycles was studied, and the sensitivity of steel slag stabilized soil to forming moisture content was discussed near the optimal moisture content. The test results show that the steel slag stabilized soil with a steel slag content of 8% and 15% is in the water saturation test and the dry and wet cycle test. The compressive strength and splitting strength of steel slag stabilized soil decreased sharply in the early stage, and eventually tended to stable values, and the water stability was improved with the increase of steel slag content. With the increase of age, the influence of steel slag stabilized soil strength gradually decreases when the forming moisture content changes, and increasing the steel slag content can also effectively reduce the influence of forming moisture content change on its strength.