Análise das características dos agregados miúdos extraídos em Marabá

Abstract

The sand is a small aggregate, of wide use in the civil, used construction in the confection of concrete and mortar. However, except in the workmanships of great transport and the concreting companies, in general way, use of technological controls of aggregates does not become. This work has as target the attempt to trace a profile of sands produced in the City of Marabá, in what it refers to the grain sized composition, and petrográfica appreciation, since these components allow to define, previously to the effective use of the material in workmanships, restrictions to its use or the necessity of execution of complementary assays. The present work analyzes effected them, in collected samples, two active mining companies, and a disactivated reserve. The gotten results demonstrate the necessity of more effective technological controls on the part of the producing companies, also fit the industry of the civil construction the request of materials with quality assurance, establishing minimum parameters for the acceptance of the aggregate.