Materiales de Construcción, Vol 62, No 306 (2012)

Utilization of bagasse from the beer industry in clay brick production for building

M. L. Martínez
Universidad de Jaén, Linares, Spain

D. Eliche
Universidad de Jaén, Linares, Spain

N. Cruz
Universidad de Jaén, Linares, Spain

F. A. Corpas
Universidad de Jaén, Linares, Spain


This study analyzes bricks manufactured from bagasse, a by-product of the brewing industry. Raw materials (clay and bagasse) were characterized to determine their chemical composition, mineralogical composition and thermal behaviour. Mixtures were prepared with amounts of 0, 2.5, 5, 7.5 and 10 wt% of bagasse incorporated into the clay body. Rectangular test pieces were obtained by application of 54.5 MPa pressure, they were dried at 110 °C and fired at 950 ºC in a laboratory furnace for 1 hour. Ceramic properties related to weight loss on ignition, linear shrinkage, bulk and absolute density, water absorption, water suction and compressive strength were analyzed in order to evaluate the suitability of using this wastes in ceramic matrix to the production of building bricks. The results indicate that the incorporation of the bagasse decreases the absolute and bulk density, increases the water absorption and reduces the compressive strength of the brick.


clay; bagasse waste; recycling; ceramic bricks

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