石灰及其与粉煤灰混合改良黄土强度特性试验研究

Journal of Lanzhou Institute of Technology(2013)

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Abstract
结合兰(州)武(威)铁路二线建设项目,研究重塑黄土、石灰改良黄土、石灰粉煤灰改良黄土的物理力学指标;分析石灰改良黄土、石灰粉煤灰混合料改良黄土强度形成机理;在不同含水率、不同压实系数、不同掺合比、不同龄期的条件下来研究改良黄土的无侧限抗压强度和抗剪强度.试验结果表明:石灰粉煤灰改良黄土效果十分明显,在石灰掺量不变的条件下,其抗压强度随粉煤灰掺量的增加而增大;随含水率的增大,石灰粉煤灰改良黄土抗压强度有一定程度的降低.
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Key words
unconfined compressive strength,remolded loess,resisting shear strength,lime,flyash
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