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

Author(s):: YUE Jinchao; LI Xinming; YUE Xudong; School of Water Conservancy and Environment，Zhcngzhou University，Zhengzhou 450001，China

Keywords:: steel slag stabilized soil; road bed; water stability; wetting and drying 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:: In order to study the water stability of steel slag soil and direct the construction of road bed，the va‘rying characters of unconfined compressive strength and splitting tensile strength in different soak periods anddifferent wetting and drying cycles have been carried out in the state of optimal water content under certaincompaction．The two strength indexes of steel slag soil were investigated with the different water content whensample formed．Test results showed that after different soak periods and different wetting and drying cycles，both the unconfined compressive strength and the splitting tensile strength of steel slag soil with 8％or 1 5％steel slag decreased sharply in the initial period，and drove to stability of status at last time．As more steel slagis added，the steel slag soil had better water stability．For different water contents，the influence on both the us—confined compressive strength and the splitting tensile strength of steel slag soil decreased as the period of sam—pie formed increased．The effect is the same by increasing the proportion of steel slag．