Study for the incorporation of wood ash in soil-cement brick

AUTOR(ES)

Souza, P. C.; Nascimento, E. S. S.; Melo, L.; Oliveira, H. A.; Almeida, V. G. O.; Melo, F. M. C.

FONTE

Cerâmica

DATA DE PUBLICAÇÃO

2022

RESUMO

Abstract This study aimed to produce soil-cement brick with wood ash incorporation coming from the textile industry. The wood ash was a partial substitute for soil and cement in the manufacture of bricks. 7 formulations were made with different proportions of substitution: 10%, 20%, and 30%. It was noticed that the substitution of cement by wood ash in 10% resulted in brick with enhanced properties, showing a 20% increase for compressive strength and a reduction of 44% for mass loss, thus, with higher durability and a reduction of water absorption of 3%, when comparing to the reference brick (soil-cement). It was shown that the reuse of wood ash in the production of soil-cement bricks is a viable and sustainable option, as it is an alternative for the destination of the waste and a reduction in the consumption of Portland cement, which generates a high volume of carbon dioxide (CO2) during its production.

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