POTENTIAL OF FOAMED CONCRETE TO ENHANCE THE THERMAL PERFORMANCE OF LOW-RISE DWELLINGS
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Published:2002
A Giannakou, M R Jones, 2002. "POTENTIAL OF FOAMED CONCRETE TO ENHANCE THE THERMAL PERFORMANCE OF LOW-RISE DWELLINGS", Innovations and Developments In Concrete Materials And Construction: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 9–11 September 2002, Ravindra K. Dhir, Peter C. Hewlett, Laszlo J. Csetenyi
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Low density (800 to 1400 kg/m3), high workability (flowing and selfcompacting) and excellent thermal insulating properties (<0.5 W/mK) make foamed concrete attractive for many construction applications. This paper describes a laboratory study carried out at the University of Dundee looking into the development of thermally insulating foamed concrete suitable for trench fill foundations and ground-supported slabs for low-rise dwellings. In order to achieve this, a fine fly ash (7.5% ret 45u.m) was used to directly replace 30% by wt Portland cement and a coarse fly ash (26.0% ret 45um) to replace 50 or 100% by wt fine aggregate. The key thermal, engineering and permeation properties of a series of mixes are reported, which show that, indeed, foamed concrete offers builders many advantages over current construction methods and materials for this application
INTRODUCTION
FOAMED CONCRETE IN HOUSING FOUNDATIONS AND GROUND SLABS
EXPERIMENTAL PROGRAMME
MATERIALS AND MIX CONSTITUENT PROPORTIONS
PREPARATION OF LABORATORY FOAMED CONCRETE SPECIMENS
TEST PROCEDURES
THERMAL PERFORMANCE
ENGINEERING PROPERTIES
PERMEATION PROPERTIES
CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
