Análise da influência de resíduos de vidro nas propriedades mecânicas do concreto

Abstract

Nowadays, the big demand for technologies that reduce significantly the productive processes and the same time reduces the quantity of the industrial waste, are the big challenger of modern society. In this way, become common, researches associated with recycling and reuse of the construction materials. Against these problematic, the present monography approaches the reuse of glass, which despite being an easily recyclable material in so many cases become impracticable because the high costs with transportation. Thus, this research it’s about of the investigation of the concrete’s properties under the influence of the addition of glass powder, being tested to the concrete mass, significant proportions of: 5, 10 e 15% (depending on the amount of cement), to thereby, verify possible changes in the properties of the concrete, both in the fresh state and in the hardened state. The methodology of the experimental analysis consists of laboratory tests and the comparative analysis between concretes with waste proportions and the reference concrete. For that, were realized compressive strength tests, determination of pozzolanic activity index, voids index and cone trunk abatement were performed. The addition of small glass particles in the concrete contributed to the reduction of the void index and with that, increased durability, the reseplasticity and workability of the concrete mass. Both for the fresh state and for the hardened state of the concrete was improvement compared to the reference concrete. The addition of 10% proved to be more useful for workability, while the increase of 5% provided the highest percentage increase in compressive strength.