Study of concrete durability using destructive and non-destructive techniques. (DHOREDEND)

Subproject: Study of concrete durability using ultrasonic imaging.

(PN I+D+I BIA 2009-14395-C04-01.  2010-2012)

The project aims to improve the existing scientific knowledge of the processes of setting and or aging of precast concrete, self-compacting concrete and concrete with addition of nanoparticles. Destructive and non-destructive characterization of materials will allow to study the microstructural variables and to establish relationships between these parameters. With these relationships, the final properties (in the setting process) or the material state throughout its life will be estimated or predicted.

Project objective:

To characterize the microstructural changes of concrete during the curing and degradation processes using ultrasonic imaging.

Results:

Simulation of the propagation process of ultrasonic waves in concrete specimens with 1 and 2 defects.

Tomographic reconstruction in steel and concrete specimens of 150 mm diameter with defects of 13 and 20 mm situated in the middle of the specimen radius, with 28 different positions of the transmitter and varying the number of receivers.