• Mar 01, 2017 News! Vol.8, No.2 has been indexed by EI(Inspec)!   [Click]
  • Mar 01, 2017 News! Vol.8, No.1 has been indexed by EI(Inspec)!   [Click]
  • Mar 01, 2017 News! Vol.7, No.6 has been indexed by EI(Inspec)!   [Click]
General Information
Editor-in-chief
Prof. T. Hikmet Karakoc
Anadolu University, Faculty of Aeronautics and Astronautics, Turkey

IJET 2015 Vol.7(4): 286-293 ISSN: 1793-8236
DOI: 10.7763/IJET.2015.V7.806

The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete

Ameer A. Hilal, Nicholas H. Thom, and Andrew R. Dawson
Abstract—This paper describes an experimental study of an enhancement of pre-formed foamed concrete, 1300-1900 kg/m3, by utilising two types of additives, silica fume and fly ash, to partially replace Portland cement and fine sand. It focuses on consistency, mechanical and thermal properties as well as presenting a comparison with normal weight, lightweight and foamed concretes from the literature. In addition to conventional foamed concrete mixes (FC), foamed concrete mixes with high flowability and strength (FCa) were also manufactured in this study. The FC mixes had 28-day compressive strengths from 6 to 23 MPa and corresponding thermal conductivities in the dry state from 0.475 to 0.951 W/mK, whereas for the same density range, the FCa mixes gave 19-47 MPa and 0.498-0.962 W/mK, respectively. Compared to other studies on foamed concrete, the results from the mixes investigated in this study showed higher strengths (for a given density), higher tensile to compressive strength ratios and higher moduli of elasticity.

Index Terms—Foamed concrete, mineral admixture, mechanical properties, thermal conductivity.

A. A. Hilal was with the University of Al-Anbar, Iraq and now he is with the Department of Civil Engineering, Faculty of Engineering, the University of Nottingham, UK (e-mail: evxaah@ nottingham.ac.uk).
N. H. Thom and A. R. Dawson are with the Department of Civil Engineering, Faculty of Engineering, and the University of Nottingham, UK (e-mail: nicholas.thom@nottingham.ac.uk, Andrew.Dawson@nottingham.ac.uk).

[PDF]

Cite: Ameer A. Hilal, Nicholas H. Thom, and Andrew R. Dawson, "The Use of Additives to Enhance Properties of Pre- Formed Foamed Concrete," International Journal of Engineering and Technology vol. 7, no. 4, pp. 286-293, 2015.

Copyright © 2008-2017. International Journal of Engineering and Technology. All rights reserved. 
E-mail: ijet@vip.163.com