Details:

Creators:
Rajagopal, Arudi
Corporate Creators:
Infrastructure Management and Engineering Inc.
Corporate Contributors:
Ohio. Dept. of Transportation
Subject/TRT Terms:
[+]
Break And Seat Comminution Crack And Seat Treatment Cracking Fractured Slab Technique Pavement Breaker Pavement Cracking Pavement Maintenance Pavement Performance Reflection Cracking Rubblization Slabs
Publication/ Report Number:
FHWA/OH-2010/10
Resource Type:
Booklet/Pamphlet
Geographical Coverage:
Ohio
Edition:
Eecutive summary report.
Corporate Publisher:
Ohio. Dept. of Transportation. Innovation, Research, and Implementation Section
Abstract:
Concrete pavements are highly susceptible to variations in temperature. During summer months, the concrete pavements expand and, contract during winter months. Such movements, particularly at the joints in concrete pavements during winter months, exert tremendous strain on the overlying asphalt concrete (AC) layer. When the strain exerted exceeds what the AC layer can absorb, a crack develops in the AC layer at the interface of concrete pavement. With time, the crack in the AC layer propagates to the surface. These cracks, termed reflection cracking -- which begin as a pattern of narrow, difficult-to-seal cracks that mirror the joints and cracks in the underlying concrete pavement – permit water to enter the pavement, triggering early deterioration of the overlay, increase in life-cycle costs and a reduction in the useful life of the pavement. Rubblization and Roll (R/R) is one of the widely used methods by various state agencies in the US for the rehabilitation of existing concrete and composite pavements. R/R involves breaking exposed concrete pavement into small fragments using heavy duty pavement breakers and rolling the fragments using a heavy duty roller. The rubblized material is transformed into crushed based layer and covered by an AC overlay. Theory suggests that, this procedure minimizes movements in concrete slabs and thereby reduce the chance of occurrence of reflection cracking. A successful R/R can result in improved overall pavement performance, increased life of pavements, reduced maintenance needs and lower life-cycle costs. Realizing the potential benefits of R/R as a technique for rehabilitation of in-service concrete and composite pavements, ODOT has constructed 27 projects since 1988. Performance of constructed pavements is generally good. However, it has been observed that many factors such as type and condition of concrete slabs, type and condition of underlying materials, type of breaker and so on can contribute to variations in performance. A thorough understanding of the role these factors play in the performance of pavements is essential in successful application of R/R technique in the future. This study is an attempt to systematically analyze the performance characteristics of ODOT’s completed R/R projects and to develop guidelines regarding improved specifications.
Format:
PDF
Funding:
134345
Collection(s):
US Transportation Collection
Main Document Checksum:
[+]
urn:sha256:105924f0c54f142f6f5fa84cdd960811b07f710d4c56bce34d4c0cdf4713dbb9
Download URL:
https://rosap.ntl.bts.gov/view/dot/20696/dot_20696_DS1.pdf
File Type:

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