ANÁLISE DA VIABILIDADE DA ADIÇÃO DE RESÍDUOS DA CONSTRUÇÃO CIVIL EM BLOCO DE ALVENARIA

Currently, the increase in environmental concern is notable, especially in civil construction, since in this sector many natural resources are used, generating a large amount of solid waste. Therefore, this article aimed to evaluate the replacement of aggregate by recycled gravel consisting of civil construction waste (type 0 gravel) in the manufacture of simple concrete blocks without structural function, classified as class C by NBR 6136/2016. Through this standard and NBR 12118/2013, tests of resistance to axial compression and moisture absorption were performed, considering the replacement of gravel in percentages of 5%, 10% and 20%. The research results show that the blocks in all replacement percentages progressed, however only analyzed individually some had the minimum characteristic strength defined by the standard.For the absorption percentage, the replacement of 5% showed the best result and the others did not have high rates. The blocks in this study were disapproved to be used as masonry for use or non-structural use, however it was found that the addition of civil construction waste generated an increase in the characteristic strength to axial compression, while the absorption percentage obtained adequate results in certain replacements. Therefore, the research reinforces that the use of waste as aggregate is a viable option, presenting an efficient option to reduce the consumption of natural material and enabling the correct disposal of this material.