Parametric Study on the Influence of Cement Replacement Materials on the Rheology of Cement Paste using Brookfield Viscometer

Author(s):Kalyana Rama. J. S., Saikrishna Pallerla, Sivakumar M. V. N., Vasan, A. and Ramachandra Murthy A.
Paper category: Proceedings
Book title: Proceedings of International Conferences (ICACMS) Advances in Construction Materials and systems Vol 2
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN: 978-2-35158-194-0
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 48-53
Total Pages: 6
Language : English

Abstract: The main focus of this study is to develop the rheological model of cement paste by the addition of various mineral additives and chemical admixtures as cementitious materials. This is important because the fresh properties that are as important as the hardened properties to yield a good performance of the concrete are governed by their rheology. The rheological properties are believed to be affected by the chemical composition. This study tries to
estimate the two rheological properties. Plastic viscosity and yield stress using various models like Bingham model. Brookfield viscometer is used for the purpose of the study. Using this, shear stress-shear rate flow tests are conducted on a number of cement paste samples. Among various models available to describe the rheological properties of cement paste, the study is mainly restricted to one single model i.e. Bingham model where linear regression method is used to obtain the Bingham parameters (plastic viscosity and yield stress). The rheological properties of cement paste obtained are further used to study the flow properties of self-compacting concrete (SCC). A successful attempt is made for the first time in measuring the rheological properties of cement paste with different combinations using Brookfield Viscometer.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00