期刊论文

中文

西部交通科技

1673-4874

2019

3

1-4,32

10.13282/j.cnki.wccst.2019.03.001

国家自然科学基金项目（51378084）； 广西交通科技计划项目（桂交综合发[2010]109号）；

本校为第一机构

为了解决低剂量水泥改性级配碎石设计时缺乏强度控制指标及标准的问题,文章针对低剂量水泥改性级配碎石,通过加州承载比CBR和无侧限抗压强度力学指标试验,探讨了相关力学指标随龄期和级配的变化规律。结果表明:CBR值比无侧限抗压强度更适用于评价低剂量水泥改性级配碎石的强度性能,并建议采用 7 d 或 14 d 龄期的CBR值,其最低标准分别为160%和180%。

In order to solve the problem of lack of strength control index and standard in the design of low-dose cement modified graded macadam,regarding the low-dose cement modified graded macadam,and through California bearing ratio(CBR)and unconfined compressive strength mechanical index experiments,this article discusses the variation law of relevant mechanical indicators with the age and gradation.The results show that the CBR value is more suitable for evaluating the strength performance of low-dose cement modified graded macadam than the unconfined compressive strength,thus it is recommended to u...