A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance Evaluation of Chip Seals in Idaho
This research has two distinct purposes: First, it seeks to evaluate the effectiveness of Idaho's existing chip seal practice and to identify the specific causes of aggregate loss from the pavement surface. Secondly, alternative materials/methods are investigated to improve the current practice and alleviate the associated problems. Chip sealing entails spraying the pavement surface with bituminous binder and then immediately covering it with aggregate (or chips) and using rollers to compress and settle the application. The intent is to seal the non-structural cracks, increase surface friction, and improve the ride quality. In the past, there was no rationale in chip seal design. Recently, several different design methodologies have been developed in various parts of the world. The Idaho Standard Manual recommends the use of the Modified Kearby Design Method. It is known that the performance of chip seal application depends on a variety of factors including the type of aggregate used, emulsion rates, construction techniques, weather, surface preparation, traffic control, and materials. The present study was initiated to explore the influence of aforementioned parameters on the performance of pavements treated via chip seals and to identify good practice for materials, design, and construction techniques to be implemented in the State of Idaho.
Performance Evaluation of Chip Seals in Idaho
This research has two distinct purposes: First, it seeks to evaluate the effectiveness of Idaho's existing chip seal practice and to identify the specific causes of aggregate loss from the pavement surface. Secondly, alternative materials/methods are investigated to improve the current practice and alleviate the associated problems. Chip sealing entails spraying the pavement surface with bituminous binder and then immediately covering it with aggregate (or chips) and using rollers to compress and settle the application. The intent is to seal the non-structural cracks, increase surface friction, and improve the ride quality. In the past, there was no rationale in chip seal design. Recently, several different design methodologies have been developed in various parts of the world. The Idaho Standard Manual recommends the use of the Modified Kearby Design Method. It is known that the performance of chip seal application depends on a variety of factors including the type of aggregate used, emulsion rates, construction techniques, weather, surface preparation, traffic control, and materials. The present study was initiated to explore the influence of aforementioned parameters on the performance of pavements treated via chip seals and to identify good practice for materials, design, and construction techniques to be implemented in the State of Idaho.
Performance Evaluation of Chip Seals in Idaho
M. Zoghi (author) / A. Ebrahimpour (author) / V. Pothukutchi (author)
2010
155 pages
Report
No indication
English
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