橡胶颗粒二灰土对湿陷性黄土的改良性能分析  

Improvement of collapsible loess by rubber particulate lime-soil

作　　者：孙雨磊 赵飞[2] SUN Yulei;ZHAO Fei(Zhangjiakou Longyuan Water Supply Co.,Ltd.Zhangjiakou,Hebei 075000;Hebei University of Architecture,Zhangjiakou,Hebei 075000)

机构地区：[1]张家口市隆源供水有限公司,河北张家口075000 [2]河北建筑工程学院,河北张家口075000

出　　处：《河北建筑工程学院学报》2023年第2期83-87,共5页Journal of Hebei Institute of Architecture and Civil Engineering

摘　　要：随着我国对西部建设力度的不断加强,对于湿陷性黄土的改良利用逐渐成为必要的研究方向。在当今倡导人与自然和谐共生的理念下,原有的使用石灰和粉煤灰等作为改良湿陷性黄土的掺料已经难以满足当下环保要求,因此需要探寻新的改良方法。随着经济发展,我国废弃轮胎不断增多,如何能够安全环保且无害的处理这些废弃轮胎成为近来研究热门,因此两相结合,在减少掺入石灰和粉煤灰的基础上,掺入橡胶颗粒,以此作为研究对象,通过室内试验,得到以下结论:掺入橡胶颗粒能够减少土体沉降量,且随着掺入比例的增加,效果增强;在橡胶颗粒掺入量为30%时,试样在正压力作用下以及在相同养护时间下均能够达到最大剪切强度;在其最优含水率下,橡胶颗粒掺入量为30%时能够达到最大抗剪强度。With the continuous strengthening of China's western construction,the improvement and utilization of collapsible loess has gradually become a necessary research direction.Under the concept of harmonious coexistence between man and nature,the original use of lime and fly ash as admixtures for improved collapsibility loess has been unable to meet the current environmental requirements,so new improvement methods need to be explored.And with the economic development,China's growing discarded tires,how can the security environmental protection and harmless handling these discarded tires become research hot lately,so combining the two,in reducing mixed with lime and fly ash on the basis of the incorporation of rubber particles,as the research object,through indoor experiment,get the following conclusion:Adding rubber particles can reduce the soil settlement,and the effect is enhanced with the increase of the incorporation ratio.When the rubber particle content is 30%,the sample can reach the maximum shear strength under the action of positive pressure and the same curing time.Under the optimal water content,the maximum shear strength can be achieved when the rubber particle content is 30%.

关 键 词：橡胶颗粒 石灰 粉煤灰 掺量比例 

分 类 号：TU521.3[建筑科学—建筑技术科学]