Table of Contents Author Guidelines Submit a Manuscript
Journal of Materials
Volume 2015, Article ID 239717, 11 pages
http://dx.doi.org/10.1155/2015/239717
Research Article

Effect of Inert and Pozzolanic Materials on Flow and Mechanical Properties of Self-Compacting Concrete

1Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, QC, Canada H3A 0C3
2Construction Materials Institute, University of Tehran, Tehran, Iran

Received 6 January 2015; Revised 11 March 2015; Accepted 18 March 2015

Academic Editor: Christian M. Julien

Copyright © 2015 Mehrdad Mahoutian and Mohammad Shekarchi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This research investigates the fresh behaviour and mechanical properties of self-compacting concrete (SCC) containing high volume of limestone, metakaolin, silica fume, zeolite, and viscosity modifying admixture. Two fine aggregates with different fineness modulus were also utilized to evaluate the effect of sand’s gradation on the mechanical and flow properties of SCC containing inert and pozzolanic powder. Slump flow, V-funnel for fresh concrete and 5-minute-old concrete, J-ring, Orimet with and without J-ring, and L-box and U-box tests were performed on all 14 fresh concrete mixtures to examine the fresh properties of self-compacting concrete. Compressive strength of hardened specimens was measured at 7 and 35 days and tensile strength was also determined at the age of 28 days. The results show that sand grading significantly affects the fresh properties of SCC. It is also concluded that high volume of active powders including metakaolin, zeolite, and silica fume could not improve both the flow and mechanical properties of SCC at the same time. Limestone can be effectively used as filler in SCC in high volume content. A new set of limits for the L-box and U-box tests for SCC containing silica fume is also recommended as the existing criteria are not satisfactory.