河道及湖泊疏浚淤泥的改性研究
发布时间:2018-10-15 10:35
【摘要】:本研究以水泥、矿渣粉煤灰为固化剂,通过使用硫酸盐和氢氧化钠来激发矿渣、粉煤灰改性疏浚淤泥,按照控制变量的方法设计两种激发剂占淤泥含量的不同比例,进行固化然后抗剪试验,得出在各种配比下的c、φ值。比较两种激发剂激发矿渣粉煤灰对淤泥改性后的抗剪强度影响。发现在碱性环境下粉煤灰和矿渣的激发效果更好,改性后的淤泥各项指标均有所提高。以期为提高疏浚淤泥利用率提供一条途径。
[Abstract]:In this study, cement and slag fly ash were used as curing agents to activate slag by using sulfate and sodium hydroxide. Fly ash was used to modify dredged silt. According to the method of controlling variables, two activators were designed to account for different proportion of sludge content. The solidification and shear resistance tests were carried out, and the c, 蠁 values were obtained under various ratios. The effects of activated slag and fly ash on the shear strength of silt modified by two activators were compared. It was found that the activation effect of fly ash and slag was better in alkaline environment, and the indexes of modified sludge were improved. It is expected to provide a way to improve the utilization ratio of dredged silt.
【作者单位】: 连云港市市区水工程管理处;
【分类号】:X703;TU52
本文编号:2272274
[Abstract]:In this study, cement and slag fly ash were used as curing agents to activate slag by using sulfate and sodium hydroxide. Fly ash was used to modify dredged silt. According to the method of controlling variables, two activators were designed to account for different proportion of sludge content. The solidification and shear resistance tests were carried out, and the c, 蠁 values were obtained under various ratios. The effects of activated slag and fly ash on the shear strength of silt modified by two activators were compared. It was found that the activation effect of fly ash and slag was better in alkaline environment, and the indexes of modified sludge were improved. It is expected to provide a way to improve the utilization ratio of dredged silt.
【作者单位】: 连云港市市区水工程管理处;
【分类号】:X703;TU52
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