摘要
为了有效的利用煤矸石对膨胀土进行改善,本文针对膨胀土的改良问题进行了一系列室内试验研究,对素膨胀土以及煤矸石改良后膨胀土混合料的基本物理性质、胀缩特性、击实特性、力学特性等进行了室内对比试验分析。结果表明,在掺入煤矸石粉后膨胀土的膨胀率、抗剪强度和无侧限抗压强度都有不同程度的改善,且煤矸石粉的最佳掺掺量为8%。
In order to effectively utilize eoal gangue powder to improve the engineering properties of expansive soil, a series of indoor tests were conducted, including swelling eapaeity test, eompaetion lest, tri - axial shear test, and unconfined compression strength test. The basic physical properties, expansion and shrinkage characteristics, compaction characteristics, mechanical properties were analyzed. The results show that, the swelling rate, shear strength and unconfined compression strength had different degrees of improvement, and the best content of coal gangue powder was 8 percent.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
北大核心
2013年第4期127-130,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
内蒙古自治区科技计划项目(20110518)
内蒙古自然科学基金项目(2012MS0613)
内蒙古农业大学学生科技创新基金项目
关键词
膨胀土
煤矸石粉
改良试验
Expansive soil
coal gangue
improvement test
