Abstract: In this study, the results of the mechanical and physical tests on the concrete that has batch and continuous granulometrics aggregate have been analyzed. For this purpose, 300-400 doze concrete samples have been produced from streams and crushed stone aggregate. The ratio of water/cement was taken as 0.50 in all of these mixtures. Maximum grain diameter (dmax) of the aggregate was chosen as 32 mm. To create a step gradation, the aggregates that has equivalent (0-4), (4-8), (8-16) and (16-32) mm sieve eye openings were subtracted from the aggregate stack, respectively. Crushed stone aggregate with continuous granulometrics and streams aggregate with batch granulometrics except (8-16) mm has shown high mechanical performance.

• Publication Date: 08-Jun-2014
• DOI: 10.15224/978-1-63248-020-0-33
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Abstract: Waste disposal problem leads to negative effects on environment, health and economy. Recent years, recycling and reusing of waste materials in various sectors have been implemented to solve this problem. This experimental study was conducted to demonstrate the possibility of using marble wastes as a substitute rather than natural aggregates in hot mix asphalt (HMA) production. The marble wastes were crushed and ground to obtain fine aggregates. Based on experimental evidences, it can be stated that the use of recycled marble aggregate (RMA) instead of virgin aggregate (VA) as a fine aggregate is promising in many applications where cost and environmental aspects are primarily considered.

• Publication Date: 08-Jun-2014
• DOI: 10.15224/978-1-63248-020-0-34
• Views: 0
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