基于灰关联分析水下混凝土和易性与砂浆流变性的关系  

Analysis of the relationship between workability of underw ater concrete and rheological property of mortar based on grey correlation

作　　者：赵晶[1] 杨帆[1] 曲俊龙 吴会军[1] 

机构地区：[1]大连交通大学土木与安全工程学院,辽宁大连116021

出　　处：《混凝土》2017年第5期140-142,148,共4页Concrete

基　　金：国家基金资助项目(51472040)

摘　　要：采用Viskomat XL流变仪对水下混凝土砂浆流变性进行研究,同时测试相同配合比水下混凝土的和易性。运用灰关联系统对所得数据进行分析,得出水下混凝土砂浆流变性和水下混凝土和易性之间的相关系数。结果表明:影响水下混凝土和易性的主要因素是材料的塑性黏度,材料的屈服应力对水下混凝土能否流动起着重要的作用,改进式坍落度筒法是一种很好地表征水下混凝土和易性的指标。The rheological properties of underwater cement mortar were determined using Viskomat XL rheometer,the workabilities of underwater concrete in the same proportion were determined at the same time.Analysis the obtained data based on Grey Correlation,the correlation coefficients of underwater cement mortar and workabilities of underwater concrete were calculated.The results indicate that the main reason affects the workabilities of underwater concrete is plastic viscosity of material,the yield stress of material plays an important role in wether underwater concrete can flow or not,the method of modified slump cone is a good characterization of workability of underwater concrete.

关 键 词：流变性 和易性 灰关联 

分 类 号：TU528.01[建筑科学—建筑技术科学]