自密实混凝土的流变性能与新旧界面粘结强度研究

Rheological Property and Interface Bond Strength of Self-compacting Concrete

针对我国CRTS Ⅲ型板式无砟轨道结构中充填层所应用的自密实混凝土,文中研究了配制矿物掺合料、粘改剂用量不同的自密实混凝土,测试新拌自密实混凝土的流变性能及自密实混凝土与蒸养混凝土之间的新旧界面粘结强度,并分析二者之间的相关性.

Aiming at the self compacting concrete used in the filling layer of CRTs III slab ballastless track structure in China,this paper studies the preparation of self compacting concrete with different amount of mineral admixture and adhesive modifier,tests the rheological properties of fresh self compacting concrete and the bonding strength of the new and old interface between self compacting concrete and autoclaved concrete,and analyzes the correlation between them.