| 废弃轮胎橡胶颗粒改性膨胀土的试验研究 |
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| 引用本文： | 邹维列,谢鹏,马其天,杨迤,左春阳.废弃轮胎橡胶颗粒改性膨胀土的试验研究[J].四川大学学报(工程科学版),2011,43(3):44-48. |
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| 作者姓名： | 邹维列 谢鹏 马其天 杨迤 左春阳 |
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| 作者单位： | 1. 武汉大学,土木建筑工程学院,湖北武汉430072;岩土与结构工程安全湖北省重点实验室,湖北武汉430072
2. 武汉大学,土木建筑工程学院,湖北武汉430072 |
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| 基金项目： | 国家自然科学基金项目；国家大学生创新性实验计划项目；国家高技术研究发展计划 |
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| 摘 要： | 废弃轮胎破碎后与土混合可改善土的工程特性,为提高废旧轮胎的循环利用和解决膨胀土工程问题提供了新途径.取湖北荆州膨胀土,掺入废弃轮胎橡胶颗粒形成改性膨胀土,完成了素膨胀土和改性膨胀土的物理特性、胀缩特性、强度特性试验.结果表明,当轮胎橡胶颗粒的掺量(质量百分数)小于23%时,改性膨胀土的液限和塑性指数随掺量的增加而增大,但塑限基本不变;最大干密度较素膨胀土降低,最优含水率基本不变化;改性膨胀土的粘聚力和抗剪强度较素膨胀土明显下降;粘聚力总体上随掺量的增加而减小,但抗剪强度和内摩擦角随掺量的增加变化不大;改性膨胀土的胀、缩性明显减弱,当橡胶颗粒的掺量为23%时,对胀缩特性的改善效果最佳.
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| 关 键 词： | 废弃轮胎橡胶颗粒 膨胀土 改性 胀缩特性 抗剪强度 |
| 收稿时间： | 2010/5/22 0:00:00 |
| 修稿时间： | 9/1/2010 8:59:12 AM |
Experiment on Characteristics of Expansive Soil Modified with Waste Tire Rubber Particles |
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| Zou Weilie,Xie Peng,Ma Qitian,Yang Yi and Zou Chunyang.Experiment on Characteristics of Expansive Soil Modified with Waste Tire Rubber Particles[J].Journal of Sichuan University (Engineering Science Edition),2011,43(3):44-48. |
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| Authors: | Zou Weilie Xie Peng Ma Qitian Yang Yi and Zou Chunyang |
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| Affiliation: | School of Civil Engineering in Wuhan University |
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| Abstract: | The physical properties,swelling-shrinkage characteristics and shear strength of an expansive soil modified with waste tire rubber particles were studied.The expansive soil used was obtained from Jingzhou,Hubei Province,China.The test results showed that when the mass fractions of rubber particles was under 23%,the liquid limit and plastic index of the modified expansive soil increased with the increment of mass fractions of rubber particles,while the plastic limit had little change.Compared with the unmodi... |
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| Keywords: | waste tire rubber particles expansive soil modifying swelling-shrinkage characteristics shear strength |
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