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掺纤维固化土强度变化的研究
闫宁霞1, 娄宗科1
西北农林科技大学 水利与建筑工程学院
摘要:
以杨凌黄土为供试对象,测定了不同固化剂用量和不同聚丙烯纤维掺量对固化土抗压强度的影响。结果表明,掺加聚丙烯纤维能够显著提高固化土的抗压强度,当固化剂掺量为1:8、纤维掺量为0.9 kg/m3时,固化土的28d抗压强度最高,较同条件下不掺纤维的固化土强度提高29%。经济性分析表明,该配比固化土较同配比水泥土具有更高的经济效益。
关键词:  杨凌黄土  固化剂  聚丙烯纤维  水泥土  抗压强度
DOI:
分类号:
基金项目:国家“863”节水重大专项(2002AA2Z4211);西北农林科技大学科研专项(042M075)
Study on strength variation of the mixed polypropylene fiber solid soil
Abstract:
The effect of stablizer amount and fiber amount on compressive strength was studied.The results suggested that fiber content deeply influced the characteristics of stabilized soil,an addition of 1∶8 stablizer amount,0.9 g/m3 fiber amount produced the highest compressive strength.The increase rate of compressive strength was 29% for stabilized soil.The economic value of the mixed polypropylene fible solid soil were higher than cement stabilized soil.
Key words:  Yangling loess  stabilizer polypropylene fiber  cement-stabilized soil Compressive strength