RECYCLED AGGREGATE USED FOR MAKING BUILDING BLOCKS
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Published:1998
P Pimienta, P Delmotte, T Tran, M Colombard-Pront, 1998. "RECYCLED AGGREGATE USED FOR MAKING BUILDING BLOCKS", Sustainable Construction: Use of Recycled Concrete Aggregate: Proceedings of the International Symposium organised by the Concrete Technology Unit, University of Dundee and held at the Department of Trade and Industry Conference Centre, London, UK on 11 – 12 November 1998, Ravindra K. Dhir, Neil A. Henderson, Mukesh C. Limbachiya
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ABSTRACT. The purpose of this study was to determine the properties of concrete building blocks manufactured using recycled aggregates. Preliminary experiments were carried out to determine suitability of the recycled aggregates composition for the production of building blocks. The mixes consisted of 6/12 mm fraction recycled aggregates and 0/6 mm fraction natural sand, but no recycled fine aggregates. Five series of concrete blocks using recycled aggregates and different cement contents, and a series of reference blocks were manufactured. These were tested to determine the optimum concrete composition and their properties. These include compressive strength, density, dimensional changes between extreme conventional states and capillarity, as well as compression tests on the walls. From the results obtained it was concluded that the use of quality recycled aggregates, with the fine fraction replaced and a 10% increase in the cement content would allow the production of concrete blocks with characteristics similar to those of natural aggregate concrete blocks.
ABSTRACT
INTRODUCTION
MATERIALS
PRELIMINARY STUDIES ON THE MATERIAL
BLOCK MANUFACTURE
PRELIMINARY TESTS
MAIN EXPERIMENTAL PROGRAMME
RESULTS AND DISCUSSION
CONCLUDING REMARKS
ACKNOWLEDGEMENTS
REFERENCES
