摘要
为提高钢渣的综合利用率,将其掺入到二灰土中,用作道路路面基层材料.对二灰钢渣土进行了击实试验,测定其不同龄期的无侧限抗压强度,探讨不同吸水时间和不同干湿循环次数下抗压强度和回弹模量的变化规律.结果表明:二灰钢渣土具有较宽的可击实区间;其浸水后早龄期的水稳定性系数较低;经过不同吸水时间和干湿循环之后,二灰钢渣土的抗压强度和回弹模量在初期急剧下降,但最终趋于稳定,钢渣掺量为30%的配比衰减程度最小.
In order to increase the utilization rate of steelmaking slag, it has been incorporated into lime-fly ash stabilization soil to be used as road pavement base materials. Laboratory tests on compaction behavior for lime-fly ash stabilization soil mixed with steelmaking slag has been carried out to measure its unconfined compressive strength under different ages, and discuss the variation law of its com- pressive strength and resilient modulus under different water absorption periods and different wet-dry cycle times. The results showed that the range of compaction water content for lime-fly ash stabilization soil mixed with steelmaking slag was wider than lime-fly ash sta- bilization soil; the coefficient of water stability had dramatic decay after short soak periods ; and under different water absorption periods and wet-dry cycle times, the compressive strength and resilient modulus of lime-ash soil mixed with steel slag generated dramatic decay in the early stages, and eventually stabilized. The soil which mixed with 30% steelmaking slag has a minimum attenuation.
出处
《华北水利水电学院学报》
2013年第6期96-99,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
安徽省自然科学基金项目(1308085QE83)
关键词
钢渣
路面基层
水稳定性
干湿循环
steelmaking slag
road pavement base
water stability
wet-dry cycle
