THE USE OF DESTRUCTIVE AND NONDESTRUCTIVE TESTING IN CONCRETE STRENGTH ASSESSMENT FOR A SCHOOL BUILDING
Journal: International Journal of Advanced Research in Engineering and Technology (IJARET) (Vol.10, No. 6)Publication Date: 2019-12-23
Authors : V. Minutolo S. Di Ronza C. Eramo P. Ferla S. Palladino R. Zona;
Page : 252-267
Keywords : non-destructive testing; concrete structure; Sonreb; ultrasonic testing; rebound index;
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Abstract
The present paper aims to increase knowledge of the methods of resistance estimating of concrete in situ by means of non-destructive tests used to integrate the quantitative results from cylindrical specimens (core). The results of experimental investigations carried out on concrete conglomerate samples of a school building are shown. The experimental campaign then will be presented like a case study, conducted on a series of concrete beams and pillars of an existing building. The expression obtained through the calibration procedure of the values of non-destructive tests with those provided by the core drills allowed to estimate the average values of the compressive strength of the concrete. It is highlighted how this result was achieved with a very limited core number that are extracted in randomly selected points and that there was a proportionality link with the resistances obtained from non-destructive tests
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