AN EXPERIMENTAL STUDY TO INVESTIGATE THE RHEOLOGICAL PROPERTIES OF FRESH SCC USING NEW CONCRETE SHEAR BOX

Girish. S ., Ajay. N ., Ashwin. M. Joshi ., Namratha Bharadwaj .
2018 International Journal of Research in Engineering and Technology  
Flow characterization and controlling fresh property of SCC is most critical. Even slight variations in ingredients can have adverse effect on fresh properties; strength and durability of hardened concrete. The material science approach to study rheological properties is essential in order to overcome the paucity posed while characterizing mixes by empirical methods such as the slump flow test. In the present work, the Bingham parameters of SCC were assessed by using the new concrete shear box.
more » ... The mixes were designed considering volume of paste based on absolute volume concept. Three different volumes of pastes (0.38, 0.40 and 0.42) with water contents of 170 and 190 lt/m 3 and cement contents of 300 and 450 kg/m 3 along with slag as filler was used. A unique test procedure was followed, by applying low normal stresses of 0.10, 0.20 and 0.30 MPa with three different displacement rates of 1, 5 and 15mm/min under static condition. The results indicate that the new concrete shear box shall effectively put to use, as an additional tool for evaluating the rheological properties of SCC viz., yield stress and plastic viscosity.
doi:10.15623/ijret.2018.0713005 fatcat:kwtperm4szedjkiesyjmlqegma