CAJ | 학술논문

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.
침대로기공정시공수요,대우량충불동강사참량적강사은정토재불동포수시간이급불동실수일흡수간습순배차수하적무측한항압강도화벽렬강도적변화규률진행료연구,병재최가함수솔부근탐토료강사은정토대성형함수솔적민감성.시험결과표명,시우강사참량위8%화15%적강사은정토,재포수시험화간습순배시험중.강사은정토적항압강도화벽렬강도재초기급극감소,최종균추우은정치,차수착강사참량적증가,기수은성득도개선.수착령기적증장,성형함수솔적변화시강사은정토강도적영향축점감소,증가강사참량야능구유효강저성형함수솔변화대기강도적영향.
In order to study the water stability of steel slag soil and direct the construction of road bed,the varying characters of unconfined compressive strength and splitting tensile strength in different soak periods and different wetting and drying cycles have been carried out in the state of optimal water content under certain compaction.The two strength indexes of steel slag soil were investigated with the different water content when sample 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 15% steel slag decreased sharply in the initial period,and drove to stability of status at last time.As more steel slag is added,the steel slag soil had better water stability.For different water contents,the influence on both the unconfined compressive strength and the splitting tensile strength of steel slag soil decreased as the period of sampie formed increased.The effect is the same by increasing the proportion of steel slag.