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Materials 2016, 9(4), 295; doi:10.3390/ma9040295

Residual Mechanical Properties of Concrete Made with Crushed Clay Bricks and Roof Tiles Aggregate after Exposure to High Temperatures

1
Department for Materials and Structures, Faculty of Civil Engineering, University of Osijek, Osijek 31000, Croatia
2
Department for Materials, Faculty of Civil Engineering, University of Zagreb, Zagreb 10000, Croatia
*
Author to whom correspondence should be addressed.
Academic Editor: Jorge de Brito
Received: 30 January 2016 / Revised: 10 April 2016 / Accepted: 12 April 2016 / Published: 19 April 2016
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Abstract

This paper presents the residual mechanical properties of concrete made with crushed bricks and clay roof tile aggregates after exposure to high temperatures. One referent mixture and eight mixtures with different percentages of replacement of natural aggregate by crushed bricks and roof tiles are experimentally tested. The properties of the concrete were measured before and after exposure to 200, 400, 600 and 800 °C. In order to evaluate the basic residual mechanical properties of concrete with crushed bricks and roof tiles after exposure to high temperatures, ultrasonic pulse velocity is used as a non-destructive test method and the results are compared with those of a destructive method for validation. The mixture with the highest percentage of replacement of natural aggregate by crushed brick and roof tile aggregate has the best physical, mechanical, and thermal properties for application of such concrete in precast concrete elements exposed to high temperatures. View Full-Text
Keywords: concrete; crushed brick; crushed tile; ultrasonic pulse velocity; mechanical properties; high temperatures concrete; crushed brick; crushed tile; ultrasonic pulse velocity; mechanical properties; high temperatures
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Miličević, I.; Štirmer, N.; Banjad Pečur, I. Residual Mechanical Properties of Concrete Made with Crushed Clay Bricks and Roof Tiles Aggregate after Exposure to High Temperatures. Materials 2016, 9, 295.

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