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Optimizing the mechanical performance of adobe bricks reinforced with Vicia faba plant waste and derived biochar
Nadia Frioui1, Messaouda Boumaaza2, Ahmed Belaadi3
1Department of Mechanical Engineering, Faculty of Science and Technology , University 8 Mai 1945 Guelma, 401, 24000, Guelma, BP, Algeria.
Abstract:
Using traditional materials, especially earthen materials and plant waste, is becoming more popular worldwide due to lower construction costs, improved thermal comfort, reduced energy use, and fewer carbon dioxide emissions. In this context, tests have been performed on a stabilized earth bricks (SEBs) made from raw earth bricks combined with Vicia faba waste (VfW) and biochar derived from this waste (BVfW), obtained by pyrolysis at 300 °C and 500 °C, using a factorial design with BVfW contents ranging from 0.5 to 6 wt%. The effects of these compounds on the controlled variables were examined using artificial neural network (ANN) techniques and response surface methodology (RSM) to assess the mechanical behavior and thermophysical properties of the bricks within a system that varies the percentage of BVfW and pyrolysis temperature. The best conditions were found to be 500 °C and 4% BVfW content, based on the RSM desirability function and the ANN genetic algorithm. This experimental approach allows for optimizing production conditions by selecting the best parameters to create bricks with balanced strength.
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