广东工业大学学报2025，Vol.42Issue(2)：136-142,7.
絮凝-过滤-固化协同制备自密实流态固化土试验研究
An Experimental Study of the Synergistic Preparation of Self-compacting Fluid-like Solidified Soil by Flocculation-filtration-consolidation
摘要
Abstract
The urgent engineering and environmental challenge of efficiently processing large volumes of high-water-content sludge is addressed by transforming it into self-compacting flowable solidified soil,which serves as an effective resource utilization strategy.This study investigates the method of flocculation,filtration,and solidification in the laboratory preparation of self-compacting flowable solidified soil,analyzing the effects of the flocculation process,filtration process,admixture of solidifiers,and the addition of water-reducing agents on the fluidity and unconfined compressive strength of the solidified soil.Results indicate that the use of flocculants effectively reduces the flow value of the sludge and enhances the strength of the solidified soil.Filtration significantly accelerates the preparation of the self-compacting flowable solidified soil,achieving the desired fluidity within one hour and doubling the unconfined compressive strength compared with unfiltered samples.While the addition of cement significantly enhances the unconfined compressive strength of the solidified soil,it has a minimal impact on its fluidity.The optimal sequence for adding water reducers is after the flocculants and solidifiers,markedly improving the fluidity of the solidified soil,with a 0.2%dosage proving most effective.The comprehensive application of flocculation,filtration,and solidification processes successfully produces self-compacting flowable solidified soil with a lower porosity.关键词
高含水率淤泥/流动性/无侧限抗压强度/固化土Key words
high-water-content mud slurry/fluidity/unconfined compressive strength/solidified soil分类
建筑与水利引用本文复制引用
周永伟,刘金海,蒲诃夫,陈忠平,闵明..絮凝-过滤-固化协同制备自密实流态固化土试验研究[J].广东工业大学学报,2025,42(2):136-142,7.基金项目
国家自然科学基金资助项目(52478351) （52478351）
