Cost-effectiveness of reflective crack control treatments in Illinois

Title: Cost-effectiveness of reflective crack control treatments in Illinois
Author(s): D. Bozkurt, W.G. Buttlar, B.J. Dempsey
Paper category : conference
Book title: Fourth International RILEM Conference on Reflective Cracking in Pavements - Research in Practice
Editor(s): A. O. Abd El Halim, D. A. Taylor
and El H. H. Mohamed
Print-ISBN: 2-912143-14-4
e-ISBN: 2351580265
Publisher: RILEM Publications SARL
Publication year: 2000
Pages: 475 - 484
Total Pages: 10
Nb references: 7
Language: English

Although reflective crack control treatments are routinely used in Illinois, their cost-effectiveness has never been reliably determined. To address this issue, design, materials, construction, and performance data were collected for over 200 overlay project across Illinois. Of these projects, detailed performance data were collected for a subset of fifty-two projects, including nine untreated control sections. The focus of the study was on rigid pavements rehabilitated with non-woven polypropylene paving fabrics in conjunction with a bituminous overlay. Comparison of measured reflective cracking in treated and untreated sections revealed a slight delay in longitudinal reflective widening crack development with fabrics, but no delay in transverse reflective cracking. However, both strip and area treatments were estimated to increase rehabilitation life spans by 1.1 and 3.6 years, respectively. Life-cycle cost analyses (LCCA) found both strip and area reflective crack control treatments to be marginally cost effective (four percent reduction in life cycle costs, on average). Permeability testing of field cores taken over transverse joints showed that waterproofing benefits can exist after reflective crack appearance when these fabrics are used. An interlayer stress absorbing composite (ISAC) developed at the University of Illinois is also described, which provides both reinforcement and base isolation benefits. ISAC has been found to be effective in preventing reflective cracking in bituminous overlays over flexible and rigid pavements in Illinois.

Online publication: 2009-12-23
Publication type : full_text
Public price (Euros): 0.00

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