特细砂混凝土在某地区水利工程生态护岸中的应用研究  

Study on Application of Superfine Sand Concrete in Ecological Revetment of Water Project in an Area

作　　者：仲崇刚 Zhong Chonggang

机构地区：[1]博乐市水利管理站小营盘水管所

出　　处：《吉林水利》2020年第1期15-17,38,共4页Jilin Water Resources

摘　　要：为研究特细砂混凝土在我国部分地区水利工程生态护岸中的应用,开展了不同水灰比、含砂率条件下特细砂混凝土坍落度、抗压强度及抗渗性室内试验。实验结果表明:(1)特细砂混凝土的坍落度、黏聚性及保水性随着水灰比及含砂率的增长整体呈现出逐渐变差的趋势,但其坍落度均在10—20mm内,能够满足工程要求;(2)特细砂混凝土的单轴抗压强度随着含砂率的提高而上升,成线性正相关关系;随着水灰比的提高而逐渐下降,成线性负相关关系;(3)不同水灰比、含砂率特细砂混凝土的抗渗等级均为6级,最佳配合比为砂率0.33、水灰比0.45,能够满足护岸工程抗渗要求。In order to study the application of superfine sand concrete in ecological revetment of water projects in some areas of China,some experiments on slump,compressive strength and impermeability of superfine sand concrete under different water cement ratio and sand content rate were carried out.The experimental results show that:●The slump,cohesiveness and water holding capacity of superfine sand concrete gradually deteriorate with the increase of water cement ratio and sand content rate,but the slump of the concrete is all within 10-20 mm,which can satisfy the requirements of a project.●The uniaxial compressive strength of superfine sand concrete increases with the increase of sand content rate,both of them have a linear positive correlation,while gradually decreases with the increase of water cement ratio,both of them have a linear negative correlation.●The impermeability grade of superfine sand concrete under different water cement ratio,and sand content is all Class 6,and the best mix ratio is that the sand rate is 0.33,and the water cement ratio is 0.45,which can meet the impermeability requirements of revetment.

关 键 词：特细砂混凝土 新型材料 水利工程 生态护岸 

分 类 号：TU528[建筑科学—建筑技术科学]