Mechanical Properties of Colored Pavement Containing Metal Oxides

Document Type : Research Paper

Authors

1 Department of Civil Engineering, Faculty of Engineering, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran

2 Young and Elite Researchers Club, Islamic Azad University, Sanandaj Branch, Sanandaj, Iran

Abstract

The color of materials causes surface varieties leading to increase the architectural power in structure performance. The colored materials create different view keeping mechanical features of the materials. This study aims to investigate the features of asphalt and concrete colored pavement, hence different additives such as iron oxide and chromium oxide are used to analyze the behavior of colored covers. Metal oxides were added to bitumen and cement in the ratios of 25, 50 and 75 wt%, leading to make a total of 70 samples of 20×10×20 cm in dimension. After 7 days curing, samples were tested by three-point bending and Los Angles methods. The obtained results for pavement strength and freezing effects at -18 0C and -23 0C were carefully analyzed. The findings reveal that the amount of bivalent and trivalent iron oxides added to asphalt and concrete pavements, increases its bending and compressive strengths. Furthermore, the result of Los Angeles experiment shows that the addition of iron oxide, crisps the behavior of covers. Collectively, the more metal oxides are added, the more crisp in asphalt and concrete pavement will be produced.

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Experimental Research in Civil Engineering
Volume 3, Issue 6 - Serial Number 6
October 2017
Pages 91-102

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