CORRÉLATION ENTRE ESSAIS NON DESTRUCTIFS ET ESSAIS DESTRUCTIFS DE LA RÉSISTANCE DU BÉTON (SCLÉROMÈTRE & ULTRASON)/CORRELATION BETWEEN NON-DESTRUCTIVE TESTING AND DESTRUCTIVE TESTING OF CONCRETE STRENGTH (HARDNESS & ULTRASOUND)

Abstract

Interpretation of nondestructive testing for estimating concrete compressive strength is based usually on correlation charts for equipment manufacturers and other correlations available in literature. These correlations are often confusing and their accuracy questionable. The main objective of this study is to propose simple correlations between rebound hammer and ultrasonic velocity tests with crushed compressive strength for local concrete materials reflecting the current practices of construction sites in Algeria.