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Experimental Study on Short Basalt Fiber Reinforced Expansive Soil
Author(s): 
Pages: 44-47
Year: Issue:  9
Journal: Building Science

Keyword:  膨胀土玄武岩纤维纤维含量强度变形;
Abstract: 玄武岩纤维是一种新型的纯天然绿色纤维.本文将分散的玄武岩纤维丝掺入膨胀土中,研究玄武岩纤维加筋膨胀土的强度与变形特性.试验中,按纤维含量与干土质量比分别为0.0%,0.2%,0.4%和0.6%的比例配制试样.通过室内试验,研究表明:纤维的增加可抑制膨胀土的胀缩性;增加纤维含量,土的无侧限抗压强度和抗剪强度均有所增大,当纤维含量超过最优加筋量0.4%时,加筋膨胀土的无侧限抗压强度和抗剪强度反而会降低.因此,通过掺加玄武岩纤维增强材料,可以获得强度和韧性更高的纤维膨胀土,为膨胀土性质的改良提供一种可借鉴的方法.
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