| 纳米二氧化硅对纤维固化土力学性质的影响 |
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| 引用本文： | 程培峰,陈勃同. 纳米二氧化硅对纤维固化土力学性质的影响[J]. 低温建筑技术, 2021, 43(2): 43-47 |
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| 作者姓名： | 程培峰 陈勃同 |
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| 作者单位： | 东北林业大学土木工程学院,哈尔滨150040 |
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| 摘 要： | 为了提高聚乙烯醇纤维-石灰改良土的抗冻性与水稳定性,在改良土中加入纳米Si02,通过试验研究纳米Si02对聚乙烯醇纤维-石灰改良土强度以及抗冻性与水稳定性的影响.试验结果表明,纳米Si02可以有效的提高纤维固化土的抗压强度,当石灰掺量为8％,纳米Si02掺量为1.3％时,土体的抗压强度达到峰值;与单独掺加石灰和单独掺加...
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| 关 键 词： | 聚乙烯醇纤维 纳米Si02 石灰 无侧限抗压强度试验 |
EFFECT OF NANO SILICA ON MECHANICAL PROPERTIES OF FIBER REINFORCED SOIL |
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| CHENG Peifeng,CHEN Botong. EFFECT OF NANO SILICA ON MECHANICAL PROPERTIES OF FIBER REINFORCED SOIL[J]. Low Temperature Architecture Technology, 2021, 43(2): 43-47 |
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| Authors: | CHENG Peifeng CHEN Botong |
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| Affiliation: | (School of Civil Engineering,Northeast Forestry University,Harbin 150040,China) |
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| Abstract: | Nano-SiO2 was added into the polyvinyl alcohol fiber lime improved soil to improve the freezing resistance and water stability,the effects of which on the strength,frost resistance and water stability of polyvinyl alcohol fiber lime improved soil were studied through experiments.The results show that nano-SiO2 can effectively improve the compressive strength of fiber stabilized soil,and when the lime content is 8%,nano-SiO2 content is 1.3%,the compressive strength of soil reaches the peak;Compared with the soil with lime and nano-SiO2 alone,the freezing resistance and water stability of soil can be significantly enhanced by adding lime and nano-SiO2 at the same time. |
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| Keywords: | polyvinyl alcohol fiber nano-SiO2 lime unconfined compressive strength test |
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