The Effect of Adding Bamboo Leaf Ash and Cement on the Stability of Clay Soil

Engineering and Technology Journal Pub Date : 2024-07-10 DOI:10.47191/etj/v9i07.03

Ahmad Junaidi, Ilham Akbar Gimnastiar, Revisdah Revisdah, R. D. H. Maesa Hariyanto

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Abstract

Subgrade soil or clay subgrade is a type of soil with very high pore water characteristics, causing problems for civil structures, both buildings and road pavements. Bamboo leaf ash contains several compounds such as silica (SiO2) at 77.24%, while cement contains several calcium oxide (CaO) compounds at 60%. Bamboo leaf ash has a high silica content which functions as a support for pozzolanic reactions with clay soil. The variations in the mixture of bamboo leaf ash and cement used are 2%, 3%, 4%, 5% and 6% for bamboo leaf ash and 20% for cement by weight of soil, with a curing time of 4 days. From the two tests that have been carried out, namely soil compaction (Standard Proctor) and Unsoaked CBR (California Bearing Ratio), the optimum values obtained for soil compaction (Standard Proctor) and CBR (California Bearing Ratio) Unsoaked are in the variation of soil + cement addition of 20% + Bamboo Leaf Ash 3%. In the soil compaction test (Standard Proctor), the dry volume weight value was 1,728 gr/cm3 and the optimum water content value was 16.02%, while in the Unsoaked CBR (California Bearing Ratio) the optimum CBR percentage value was 10.25%.

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添加竹叶灰和水泥对粘土稳定性的影响

基层土壤或粘土基层是一种孔隙水特性非常高的土壤，会给民用建筑（包括建筑物和路面）带来问题。竹叶灰含有多种化合物，如二氧化硅（SiO2），含量为 77.24%，而水泥含有多种氧化钙（CaO）化合物，含量为 60%。竹叶灰中的二氧化硅含量很高，可作为与粘土发生水胶反应的支撑物。竹叶灰和水泥的混合比例变化为：竹叶灰占土壤重量的 2%、3%、4%、5% 和 6%，水泥占土壤重量的 20%，固化时间为 4 天。从已进行的两项试验，即土壤压实度（标准校准仪）和未烘干 CBR（加利福尼亚承载比）来看，土壤压实度（标准校准仪）和未烘干 CBR（加利福尼亚承载比）的最佳值是土壤+水泥添加量 20%+ 竹叶灰 3%。在土壤压实试验（Standard Proctor）中，干容重值为 1 728 gr/cm3，最佳含水量值为 16.02%，而在未浸泡 CBR（加州承载比）中，最佳 CBR 百分比值为 10.25%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Engineering and Technology Journal

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