A Static approach for Determining Rheological Properties of Self-Compacting Concrete (Powder and VMA Type) by using Direct Shear Box Test Method

N. Ajay*, S. Girish **, Ashwin M. Joshi ***
*, *** Infrastructure Construction and Management, RASTA, Bangalore, India.
** Department of Civil Engineering, B.M.S. College of Engineering, Bangalore, India.
Periodicity:March - May'2020
DOI : https://doi.org/10.26634/jce.10.2.17128

Abstract

To provide better understanding of the behavior of the fresh concrete and to enhance the quality of concrete, the Selfcompacting concrete (SCC) is characterized by its rheological properties, by a more scientific approach to overcome the limitations of the existing empirical test methods. In this study, SCC mixes (Powder and Viscosity Modifying Admixture type) were developed by using Portland Pozzalana Cement (PPC), ground granulated blast slag (GGBS) as a filler material, M-sand as a fine aggregate, natural angular crushed granite as coarse aggregate and with superplasticizer (SP) and Viscosity Modifying Admixture (VMA). About 12 different SCC mixes with more than 100 trials, were developed with varying cement contents (300, 375 and 450 kg/m3) and water contents (185 and 205 /m3) along with varying filler contents. The experimental results show that direct shear box can be effectively used to determine the Bingham parameters of fresh SCC under static condition following an unique procedure. The result also shows the importance of volume of paste (Vp) in making the mix robust.

Keywords

Direct Shear Box, Rheology of SCC, Self-Compacting Concrete, Volume Fraction Method.

How to Cite this Article?

Ajay, N., Girish, S., and Joshi, A. M. (2020). A Static approach for Determining Rheological Properties of Self-Compacting Concrete (Powder and VMA Type) by using Direct Shear Box Test Method. i-manager's Journal on Civil Engineering, 10(2), 27-33. https://doi.org/10.26634/jce.10.2.17128

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