Assessing Load Transfer Across Joints And Cracks In Rigid Pavements Using The Falling Weight Deflectometer
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Author | : Emmanuel B. Owusu-Antwi |
Publisher | : |
Total Pages | : 79 |
Release | : 1990 |
Genre | : Pavements |
ISBN | : |
This study was instituted primarily to develop techniques for assessing the load transfer efficiency of joints and cracks in rigid pavements using the Falling Weight Deflectometer (FWD) and to determine the factors influencing load transfer efficiency across such discontinuities. This report describes the evaluation of procedures for assessing the load transfer efficiency of transverse joints and cracks using FWD deflection data collected on a controlled jointed reinforced concrete pavement research facility in a laboratory study. The application of the procedures--on a number of jointed reinforced concrete pavement (JRCP) and continuously reinforced concrete pavement (CRCP) test sections on in-service rigid pavements, in order to determine their suitability for implementation in the field--is also discussed.
Author | : Emmanuel Bonsu Owusu-Antwi |
Publisher | : |
Total Pages | : 302 |
Release | : 1990 |
Genre | : Pavements |
ISBN | : |
Author | : DJ. Jackson |
Publisher | : |
Total Pages | : 9 |
Release | : 1994 |
Genre | : Falling weight deflectometer |
ISBN | : |
The Falling Weight Deflectometer data for load transfer efficiency at joints in Jointed Concrete Pavement (JCP) must be properly analyzed and interpreted in order to prevent misleading results. Some parameters affecting pavement deflection are the pavement layer moduli, Poisson's ratios, thicknesses, and layer interaction. All of these must be considered to accurately "backcalculate" moduli from deflections. Joints add even more variables which affect the deflection measurement such as loss of support due to pumping at or near the joint. It is this parameter which will be discussed in this paper. First, a methodology for determining load transfer efficiency at a joint with subbase support will be given. Second the effects of loss of subbase support will be discussed and a methodology, with qualifications, given to determine load transfer at a joint that has loss of subbase support.
Author | : |
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Total Pages | : 148 |
Release | : 1992 |
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Author | : |
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Total Pages | : 778 |
Release | : 1989 |
Genre | : Pavements |
ISBN | : |
Author | : |
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Total Pages | : 704 |
Release | : 1986 |
Genre | : |
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Author | : |
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Total Pages | : 776 |
Release | : 1984 |
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Author | : Gustavo E. Morales-Valentin |
Publisher | : |
Total Pages | : 140 |
Release | : 1987 |
Genre | : Pavements |
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Author | : |
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Total Pages | : 108 |
Release | : 1985 |
Genre | : Nondestructive testing |
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Author | : National Research Council (U.S.). Highway Research Information Service |
Publisher | : |
Total Pages | : 906 |
Release | : 1989 |
Genre | : Highway engineering |
ISBN | : |