EFFECTS OF GEOSYNTHETIC REINFORCEMENT ON THE PROPAGATION OF REFLECTION CRACKING IN ASPHALT OVERLAYS

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KHODAEI A.; FALAH SH.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF CIVIL ENGINEERING Year:2009 | Volume:7 | Issue:2 Page(s): 131-140

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Title

EFFECTS OF GEOSYNTHETIC REINFORCEMENT ON THE PROPAGATION OF REFLECTION CRACKING IN ASPHALT OVERLAYS

Author(s)

KHODAEI A. | FALAH SH. | Issue Writer Certificate

Keywords

REFLECTION CRACKING

ASPHALT

OVERLAYS

DEFORMATION

GEOSYNTHETICS

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. To simulate an ASPHALT pavement overlaid on top of a crack in a concrete or ASPHALT pavement, an ASPHALT mixture specimen was placed on top of two discontinuous concrete or ASPHALT concrete blocks with 100 mm height. Four types of specimens were prepared with respect to the location of geogrid: (I) Unreinforced samples, which served as control specimen, (II) Samples with geogrid embedded on the concrete or ASPHALT concrete block, (III) Samples with geogrid embeded one-thired depth of ASPHALT concrete from bottom, (IV) Samples with geogrid embedded in the middle of the ASPHALT beam. Each specimen was then placed on the rubber foundation in order to be tested. Simulated- repeated loading was applied to the ASPHALT mixture specimens using a hydraulic dynamic loading frame. Each experiment was recorded in its entirety by a video camera to allow the physical observation of reflection crack formation and propagation. This study revealed that geosynthetic reinforced specimens exhibited resistance to REFLECTION CRACKING. Placing the geogrid at the one- third depth of overlay thickness had the maximum predicted service life. Results indicate a significant reduction in the rate of crack propagation and rutting in reinforced samples compared to unreinforced samples.

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APA: Copy

KHODAEI, A., & FALAH, SH.. (2009). EFFECTS OF GEOSYNTHETIC REINFORCEMENT ON THE PROPAGATION OF REFLECTION CRACKING IN ASPHALT OVERLAYS. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, 7(2), 131-140. SID. https://sid.ir/paper/271806/en

Vancouver: Copy

KHODAEI A., FALAH SH.. EFFECTS OF GEOSYNTHETIC REINFORCEMENT ON THE PROPAGATION OF REFLECTION CRACKING IN ASPHALT OVERLAYS. INTERNATIONAL JOURNAL OF CIVIL ENGINEERING[Internet]. 2009;7(2):131-140. Available from: https://sid.ir/paper/271806/en

IEEE: Copy

A. KHODAEI, and SH. FALAH, “EFFECTS OF GEOSYNTHETIC REINFORCEMENT ON THE PROPAGATION OF REFLECTION CRACKING IN ASPHALT OVERLAYS,” INTERNATIONAL JOURNAL OF CIVIL ENGINEERING, vol. 7, no. 2, pp. 131–140, 2009, [Online]. Available: https://sid.ir/paper/271806/en

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