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首页> 外文期刊>International journal of geotechnical engineering >Compaction characteristics of lateritic soil mixed with fly ash and lime
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Compaction characteristics of lateritic soil mixed with fly ash and lime

机译：粉煤灰与石灰混合的红壤土的压实特性

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摘要

The compaction characteristics of a lateritic soil modified with a low-calcium fly ash and lime was investigated in the laboratory. The maximum amount of soil replaced with fly ash was limited to 50%. Lime was added in quantities varying from 2% to 4% of the dry weight of soil-fly ash mix. Moisture-dry unit weight relationships were determined for the mixes by using a fresh specimen for each point even after a delay period extending up to 3 days. Fresh specimens were also subjected further to three re-compaction cycles without any delay. The test results indicate that the addition of both fly ash and lime cause immediate reduction in the maximum dry unit weight. Compaction delay leads to a further decrease only for mixes containing lime. However, there is an increase in maximum dry unit weight after re-compaction of the soil-fly ash mixes, and the effect is more pronounced for mixes with lime added.
机译：在实验室中研究了用低钙粉煤灰和石灰改性的红土的压实特性。用粉煤灰代替的最大土壤量限制为50％。石灰的添加量为粉煤灰混合物干重的2％至4％。即使在长达3天的延迟期之后，也可以通过在每个点上使用新鲜样品来确定混合物的干湿单位重量关系。新鲜样品也经过了三个再压实循环，没有任何延迟。测试结果表明，粉煤灰和石灰的添加会立即降低最大干重。仅对于含石灰的混合物，压实延迟导致进一步降低。但是，粉煤灰混合物重新压实后，最大干重增加，对于添加了石灰的混合物，效果更为明显。

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