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.