Experimental Study on the Crack Resistance of Waste Asphalt Concrete Fiber Cement Stabilized Macadam

Abstract:

mi-rigid base on crack resistance, using orthogonal experimental design method, arranged 16 groups of orthogonal test and conducted the water content test and drying shrinkage test that aimed at various ages from 5d to 50d respectively. The results indicated that with the increasing of waste asphalt content, the shrinkage gradually increasing and the maximum reached when the dosage of waste asphalt concrete was 55%, since then, with the increasing of waste asphalt content, the shrinkage gradually decreasing and the range was largely. Fiber has little effect on moisture loss and shrinkage, with the increasing of fiber content, the moisture loss of materials with different ages increased gradually and the maximum loss rate reached when the dosage of fiber was 4, then the moisture loss decreased gradually after that. As for shrinkage, it reached minimum value when the dosage of fiber was 2.5. Mixing waste asphalt concrete and fiber in reasonable dosage can improve the crack resistance of materials.

• Periodical: Applied Mechanics and Materials (Volumes 405-408)
• Pages: 1786-1790
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.405-408.1786
• Online since: September 2013
• Authors: Hong Bo Li, Zhan Jiang Liu, Hui Shen
• Keywords: Crack Resistance, Drying Shrinkage Test, Fiber, Waste Asphalt Concrete

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