Soil Improvement with Organo-Silane
Soil Improvement with Organo-Silane
复制标题
用有机硅烷改良土壤
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
M. Hourani
中科院分区：
文献类型：
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作者：
J. L. Daniels;M. Hourani
这份手稿提供了一个新的方法，以化学为基础的土壤改良与有机硅烷（OS）的洞察。特别是，OS通过共价键在几乎任何二氧化硅基材料上产生疏水表面。与离子交换技术相反，在土壤上接枝OS导致近乎永久的改性。作为例证，进行了实验室测试来评估OS改性对几种土壤的压实、强度、膨胀、侵蚀和水力性质的影响。OS改性导致强度和膨胀潜力的适度变化和渗透能力的显着降低。同样，在2H：1V斜坡上使用OS可使侵蚀土壤的质量减少近50倍。总之，这些结果表明，OS改性可能在岩土工程和地质环境工程中有广泛的应用。
This manuscript provides insight into a new approach to chemically-based soil improvement with organosilanes (OS). In particular, OS creates a hydrophobic surface on virtually any silica-based material through covalent bonding. In contrast to ion exchange techniques, grafting OS on soils results in near permanent modification. As an illustration, laboratory testing was conducted to evaluate the influence of OS modification on the compaction, strength, swell, erosive and hydraulic properties of several soils. OS modification resulted in modest changes to strength and swell potential and a dramatic reduction in infiltration capacity. Likewise, use of OS on a 2H:1V slope reduced the mass of eroded soil by a factor of nearly 50. Overall, these results suggest that OS modification may have wide application in geotechnical and geoenvironmental engineering.