人民黄河2025，Vol.47Issue(4)：157-160,4.DOI:10.3969/j.issn.1000-1379.2025.04.025
水下不分散混凝土拌和物浆体流变性能试验研究
Experimental Study on Rheological Properties of Slurry in Underwater Non-Dispersible Concrete
摘要
Abstract
The effects of UWB-Ⅱflocculant and polycarboxylic acid superplasticizer on the fluidity and rheological properties of the slurry in underwater non-dispersible concrete were studied.The relationship between the fluidity and yield stress of the slurry was analyzed.The results show that a small amount of flocculant can increase the fluidity of slurry and reduce the yield stress and viscosity of slurry.The yield stress and viscosity of slurry are significantly increased with large dosage of flocculant.The addition of water reducing agent can slightly increase the fluidity of the slurry and reduce the yield stress and viscosity of the slurry,but the influence to the yield stress and viscosity of the slurry is weakened when the addition of water reducing agent is larger.When the dosage of flocculant is small,the slurry shows shear thickening,and when the dosage of flocculant is large,the slurry shows shear thinning.The addition of water reducing agent has no significant effect on the slurry shear thinning.There is a linear negative correlation between fluidity and yield stress.关键词
水下不分散混凝土/浆体/絮凝剂/减水剂/流动度/流变性能Key words
underwater non-dispersible concrete/slurry/flocculant/water reducer/fluidity/rheological properties分类
建筑与水利引用本文复制引用
李晓克,王琳,耿海彬,丁新新,杜浩,李长永..水下不分散混凝土拌和物浆体流变性能试验研究[J].人民黄河,2025,47(4):157-160,4.基金项目
国家自然科学基金青年项目(52108212) （52108212）
