The Effects of Geogrid on Reduction of Reflection Cracking in Asphalt Overlay

Publish Year: 1387
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

NCCE04_590

تاریخ نمایه سازی: 19 مهر 1386

Abstract:

An experimental program was conducted to determine the effects of geosynthetic reinforcement on mitigating reflection cracking in asphalt overlays. The objectives of this study were to asses the effects of geosynthetics inclusion and its placement location on the accumulation of permanent deformation. This study revealed that geosynthetic reinforced specimens improved resistance to reflection cracking. Placing the geogrid at the one third depth of overlay thickness from bottom had the maximum service life. Results indicate a significant reduction in the rate of crack propagation and rutting in reinforced samples compared to unreinforced samples.

Authors

Ali Khodaii

Assistant Professor, Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran

Shahab Fallah

M. S. c Student in Highway Division, Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran

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