Avaliação de qualidade de concretos convencionais e alternativos por meio de ensaios destrutivos e não destrutivos.

Abstract

The present work reports the results of an investigation to evaluate the potential strength and the stress- strain relation ship of alternative concretes made with lateritic and limestone in comparison to normal concretes fabricated with granitic rock aggregates. In this study, destructive methods, such as the Compression test, splinting test and modulus of strain determination test, were applied to evaluate the concretes. Non destructive methods, such as the rebound hammer method, Internal fracture test and ultrasonic pulse velocity method, were also adopted. The results obtained revealed that (i) the strengh alcance for alternative concretes was satisfactory; ( ii ) the nond estructive techniques provided a good valuation of the strengh values, uniformity, elastic properties and surface hardness; ( i i i ) the alternative concretes analyzed here showed an specific stress - strain relation ship, when compared with normal concrete.