Title:
Control of Viscosity of Cementitious Materials Using Waste Limestone Powder
Author(s):
Dongyeop Han, Jin Young Yoon and Jae Hong Kim
Publication:
IJCSM
Volume:
13
Issue:
Appears on pages(s):
Keywords:
high performance cementitious materials, waste limestone powder, rheology, viscosity, particles
DOI:
10.1186/s40069-018-0325-9
Date:
5/31/2019
Abstract:
Ultra high performance cementitious materials possess high solid volume fraction by a decreased water-to-binder
ratio. The use of a high-range water reducing admixture allowed us to obtain the initial fluidity of ultra-high performance
cementitious materials, but its poor workability and significant loss of fluidity remained. Incorporating a high
volume of supplementary cementitious materials reportedly weakens workability because they reduce the plastic
viscosity of a mix. Hence, in this research, waste limestone powder was tested to evaluate its effect on the rheological
properties of cement paste. The results give new insight on controlling the fluidity and plastic viscosity when preparing
the mix for ultra-high performance concrete.