EVALUATION OF FLOW OF HIGHLY FLOWABLE CONCRETE BY VISUALIZATION TECHNIQUE

Abstract

Laboratory experiment were conducted to investigate horizontal flow behavior of highly flowable concrete in two types of slab forms, setting lattice steel bars and vertical steel bars by visualization technique. We also investigated vertical flow behavior in both the V-funnel test apparatus and U-filling ability test apparatus.
It was found that the average maximum shear strain rates of concrete in slabs were under 1.0/s, and the average maximum shear strain rates of concrete in the consistensy test apparatuses were under 10/s.