Análise da qualidade do agregado miúdo fornecido em curitiba e região metropolitana

Abstract

With the growing of building market in Curitiba, it is necessary that we have a better way to control technologically the fine aggregate, once that sand is largely used in buildings, but in a general way, only in the greatest works the use of this material is effectively analyzed. This lack of control raises the cost of the building and causes a bad quality in the end product, and allows that some diseases appear because of the presence of deleterious materials in the sand, like lumps of clay and organic dross. This essay has the objective of analyze the quality of the sand provided in Curitiba and metropolitan area featuring five samples kept in: Pinhais, Mandirituba, Piraquara and São José dos Pinhais throught the writings of density of some specific mass, unitary mass, swelling, water absorption, content of light particles, surface moisture and determination of particle size. Concomitantly with the characterization of humic organic impurities, we are going to analyze the presence of harmful substances over some researches and we are going to determine the clods of clay content in the aggregates, as well as the powdery materials and what determinates the organic impurities humic ending with some resistance tests in strength in bending and axial compression, with 1:3 standard dash in order to compare the results found with the sand characterization and the amount of deleterious materials found in some samples.