Cost effective prevention of reflective cracking of composite pavement : tech summary.
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2011-09-01
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Edition:Tech summary; Sept. 2011.
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Abstract:Refl ection of cracks in hot mix asphalt (HMA) overlays represents a serious challenge associated with pavement ; rehabilitation. Since the early 1930s, considerable resources and eff orts have been spent to fi nd new and relatively ; inexpensive techniques to delay refl ection cracking. Diff erent methods, including the use of interlayer systems, have ; been suggested for enhancing pavement resistance to refl ection cracking. Experimental investigations in the early ; 1980s showed that interlayer systems might be used to delay or to prevent the refl ection of cracks through a new ; overlay placed over an old cracked pavement. Louisiana experimented with various techniques and treatments to ; control refl ection cracking since the 1970s; however, the performance and cost-eff ectiveness of these methods were not ; evaluated in many projects. Performance and economical assessments of these various treatment methods present a ; critical need to ensure successful control of this distress and eff ective use of available funds. Therefore, it is necessary to ; analyze various pavements across the state in which these treatments were used to establish the performance and cost ; eff ectiveness of these crack control methods.
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Main Document Checksum:urn:sha-512:e8c61640bb12e961f71d26f71a2e219a9f37153f021ef8489484a60bab926ca3c14f9f1d5e1023ae4b1c49157f6e1e098d6a3399ad3895168bd7f18012a6a4ac