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Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack and Seat Methods

2005 Pavements, Concrete
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Release : 2005
Genre : Pavements, Concrete
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Book Synopsis Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack and Seat Methods by :

Download or read book Rehabilitation of Concrete Pavements Utilizing Rubblization and Crack and Seat Methods written by . This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt: Deterioration in Portland Cement Concrete (PCC) pavements can occur due to distresses caused by a combination of traffic loads and weather conditions. Hot mix asphalt (HMA) overlay is the most commonly used rehabilitation technique for such deteriorated PCC pavements. However, the performance of these HMA overlaid pavements is hindered due to the occurrence of reflective cracking, resulting in significant reduction of pavement serviceability. Various fractured slab techniques, including rubblization, crack and seat, and break and seat are used to minimize reflective cracking by reducing the slab action. The main objective of this project is to develop a mechanistic-empirical (ME) design aproach for the HMA overlay thickness design for fractured PCC pavements. In this design procedure, failure criteria such as the tensile strain at the bottom of HMA layer and the vertical compressive strain on the surface of subgrade are used to consider HMA fatigue and subgrade rutting, respectively. The developed ME design system is also implemented in a Visual Basic computer program.

Guidance, Parameters, and Recommendations for Rubblized Pavements

2007 Pavements
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Release : 2007
Genre : Pavements
Kind : eBook
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Book Synopsis Guidance, Parameters, and Recommendations for Rubblized Pavements by :

Download or read book Guidance, Parameters, and Recommendations for Rubblized Pavements written by . This book was released on 2007. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Report on Jointed Concrete Pavement Repair Strategies in Texas

2004 Pavements, Concrete
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Release : 2004
Genre : Pavements, Concrete
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Book Synopsis Performance Report on Jointed Concrete Pavement Repair Strategies in Texas by : Tom Scullion

Download or read book Performance Report on Jointed Concrete Pavement Repair Strategies in Texas written by Tom Scullion. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt: Project 0-4517 was established to summarize the results from the Lufkin experiment on US 59 and to develop statewide guidelines on how to select rehabilitation strategies for jointed concrete pavements (JCP). This year 1 report reviews the performance of the six experimental sections on US 59 and makes recommendations for statewide implementation. The best performing section in Lufkin was the flexible base overlay, which involved placing high-quality crushed limestone directly over the JCP followed by an underseal and thin asphalt overlay. This was also one of the least expensive treatments used in the experiment. The large stone mix also gave good performance, but the crack and seat and full-depth repair techniques did not perform well. A forensic investigation was conducted to attempt to explain the variation in treatment performance. To complement the Lufkin results, a review is also presented of the performance of other JCP rehabilitation techniques recently evaluated by TxDOT districts. An evaluation of crack retarding asphalt layers (Strata(R)), grid layers (GlasGrid(R)) and slab fracturing techniques is also included in the report.

The Crack and Seat Method of Pavement Rehabilitation

1988 Pavements
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Release : 1988
Genre : Pavements
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Book Synopsis The Crack and Seat Method of Pavement Rehabilitation by : Amy M. Schutzbach

Download or read book The Crack and Seat Method of Pavement Rehabilitation written by Amy M. Schutzbach. This book was released on 1988. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Evaluation of Rubblized Pavements in Iowa

2008 Pavements, Concrete
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Release : 2008
Genre : Pavements, Concrete
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Book Synopsis Performance Evaluation of Rubblized Pavements in Iowa by : Halil Ceylan

Download or read book Performance Evaluation of Rubblized Pavements in Iowa written by Halil Ceylan. This book was released on 2008. Available in PDF, EPUB and Kindle. Book excerpt: This Phase II follow-up study of IHRB Project TR-473 focused on the performance evaluation of rubblized pavements in Iowa. The primary objective of this study was to evaluate the structural condition of existing rubblized concrete pavements across Iowa through Falling Weight Deflectometer (FWD) tests, Dynamic Cone Penetrometer (DCP) tests, visual pavement distress surveys, etc. Through backcalculation of FWD deflection data using the ISU's advanced layer moduli backcalculation program, the rubblized layer moduli were determined for various projects and compared with each other for correlating with the long-term pavement performance. The AASHTO structural layer coefficient for rubblized layer was also calculated using the rubblized layer moduli. To validate the mechanistic-empirical (M-E) hot mix asphalt (HMA) overlay thickness design procedure developed during the Phase I study, the actual HMA overlay thickness from the rubblization projects were compared with the predicted thickness obtained from the design software. The results of this study show that rubblization is a valid option to use in Iowa in the rehabilitation of PCC provided the foundation is strong enough to support construction operations during the rubblization process. The M-E structural design methodology developed during Phase I can estimate the HMA overlay thickness reasonably well to achieve long-lasting performance of HMA pavements. The rehabilitation strategy is recommended for continued use in Iowa under those conditions conducive for rubblization.

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