ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 2 May 2005
Page Count: 8

Estimation of Compressive Strength of Recycled Concretes with the Ultrasonic Method

Di Maio, AA
Mechanical Engineer, ProfessorResearch Engineer, Technological University of La Plata (UTN)CONICET-LEMIT, La Plata,

Zega, CJ
Civil Engineer, Research Fellow, CIC-LEMIT, La Plata,

Traversa, LP
Civil Engineer, Research EngineerDirector of LEMIT, CIC-LEMIT, La Plata,

(Received 4 May 2004; accepted 18 January 2005)

Abstract

In the present paper the errors in compressive strength estimation when the ultrasonic method is applied to conventional and recycled concretes are evaluated. Tests were performed on laboratory prototypes made with conventional concretes containing natural coarse aggregates and on recycled concretes containing 75% of recycled coarse aggregates (crushed concretes) by volume. In both types of concrete the strength was estimated by employing previously obtained correlation equations between the ultrasonic pulse velocity and compressive strength measured on concretes made with the same materials. The results from both types of concrete indicate that the errors in the estimated strength can be considered technologically acceptable.

Keywords:
recycled concrete, compressive strength, ultrasonic pulse velocity, estimation of strength

Paper ID: JAI12849
DOI: 10.1520/JAI12849
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