Determinação da resistência de um solo com adição de areia de fundição

Abstract

The sand casting is the main residue of the foundry industries and consequently the search for alternatives to reuse this sand in large quantities has been increasing, with the purpose of preserving the natural resources and reducing the degradation of the environment. So, this work evaluated the possibility of reusing sand casting mixed with clay soils, as material for base and sub-base of pavements and mateial to landfill. The materials used in this research consist of a combination of soil and sand casting. Firstly, sand casting characterization tests and compaction tests were performed. The levels of foundry sand added to the soil were 0%, 35%, 50% and 65%. Cylindrical samples of 5 cm in diameter and 10 cm in height were molded to verify the resistance to simple compression. Through the compaction tests, it was observed that the optimum humidity decreased and the specific weight increased with the addition of casting sand. In general, the results of the simple compression strength tests showed that with the addition of the casting sand there is an increase in the resistance. The material with 50% residue addition showed better resistance.