废弃轮胎橡胶颗粒混合土无侧限抗压强度试验研究

发布时间：2018-05-03 23:21

本文选题：RST混合土 + 无侧限抗压强度　；参考：《中南大学学报(自然科学版)》2016年01期

【摘要】：为了分析废弃轮胎橡胶颗粒混合土(RST混合土)的工程特性,采用无侧限抗压强度试验对RST混合土的无侧限抗压强度进行研究。首先,对组成RST混合土的原材料的物理特性进行分析,然后,进行RST混合土试样的配比方案设计和制备方法研究,进而采用无侧限抗压强度试验,研究养护龄期、胶粒土比、灰土比以及水土比对RST混合土无侧限抗压强度的影响规律。研究结果表明:在28 d的养护龄期内,RST混合土的无侧限抗压强度随养护龄期的延长而增大,且灰土比约为10%的RST混合土试样的无侧限抗压强度对养护龄期尤为敏感;RST混合土的无侧限抗压强度还随胶粒土比的增大而减小,随灰土比的增大而增大;RST混合土无侧限抗压强度对应的最优水土比约为25%。
[Abstract]:In order to analyze the engineering characteristics of waste tire rubber particle mixed soil (RST-mixed soil), the unconfined compressive strength of RST mixed soil was studied by unconfined compressive strength test. Firstly, the physical properties of the raw materials of the RST mixed soil are analyzed, then the design of the mix scheme and the preparation method of the RST mixed soil sample are studied, and then the curing age and the ratio of clay to soil are studied by the unconfined compressive strength test. The influence of lime-soil ratio and soil / water ratio on the unconfined compressive strength of RST mixed soil. The results show that the unconfined compressive strength of RST mixed soil increases with the increase of curing age. The unconfined compressive strength of RST mixed soil with 10% lime-soil ratio is especially sensitive to curing age and decreases with the increase of grain-soil ratio. With the increase of lime-soil ratio, the optimum soil / water ratio corresponding to the unconfined compressive strength of RST mixed soil is about 25.
【作者单位】：山东科技大学土木工程与建筑学院;山东科技大学山东省土木工程防灾减灾重点实验室;
【基金】：国家自然科学基金资助项目(41102166) 山东科技大学科研创新团队支持计划项目(2012KYTD104);山东科技大学杰出青年科学基金资助项目(2012KYJQ102)~~
【分类号】：TU411

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