Author: Kevin Jones
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 0
Book Description
The Falling Weight Deflectometer (FWD) has become the "standard" for deflection testing of pavements. Iowa has used a Road Rater since 1976 to obtain deflection information. A correlation between the Road Rater and the FWD was needed if Iowa was going to continue with the Road Rater. Comparative deflection testing was done using a Road Rater Model 400 and a Pynatest 8000 FWD on 26 pavement sections. The SHRP contractor, Braun Intertec Pavement, Inc., provided the FWD testing. The r^2 for the linear correlations ranged from 0.90 to 0.99 for the different pavement types and sensor locations.
Correlation of the Road Rater and the Dynatest Falling Weight Deflectometer
Author: Kevin Jones
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 0
Book Description
The Falling Weight Deflectometer (FWD) has become the "standard" for deflection testing of pavements. Iowa has used a Road Rater since 1976 to obtain deflection information. A correlation between the Road Rater and the FWD was needed if Iowa was going to continue with the Road Rater. Comparative deflection testing was done using a Road Rater Model 400 and a Pynatest 8000 FWD on 26 pavement sections. The SHRP contractor, Braun Intertec Pavement, Inc., provided the FWD testing. The r^2 for the linear correlations ranged from 0.90 to 0.99 for the different pavement types and sensor locations.
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 0
Book Description
The Falling Weight Deflectometer (FWD) has become the "standard" for deflection testing of pavements. Iowa has used a Road Rater since 1976 to obtain deflection information. A correlation between the Road Rater and the FWD was needed if Iowa was going to continue with the Road Rater. Comparative deflection testing was done using a Road Rater Model 400 and a Pynatest 8000 FWD on 26 pavement sections. The SHRP contractor, Braun Intertec Pavement, Inc., provided the FWD testing. The r^2 for the linear correlations ranged from 0.90 to 0.99 for the different pavement types and sensor locations.
Road Rater-falling Weight Deflectometer Correlation
Author: Stephen W. Colson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 10
Book Description
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 10
Book Description
Determining Asphaltic Concrete Pavement Structural Properties by Nondestructive Testing
Author: National Research Council (U.S.). Transportation Research Board
Publisher: Transportation Research Board
ISBN: 9780309046244
Category : Nondestructive testing
Languages : en
Pages : 116
Book Description
Publisher: Transportation Research Board
ISBN: 9780309046244
Category : Nondestructive testing
Languages : en
Pages : 116
Book Description
Comparison of the Falling Weight Deflectometer and the Dynaflect for Pavement Evaluation
Author: Bary Eagleson
Publisher:
ISBN:
Category : Dynaflect
Languages : en
Pages : 153
Book Description
A literature search was made for the purpose of comparing deflection measuring devices. The Dynaflect, Road Rater, and Falling Weight Deflectometer (FWD) ranked highest when compared, using the criteria of cost, operational characteristics, and suitability. Field testing proved the Dynaflect and FWD were nearly equal in overall ability except in operational speed. Here the Dynaflect was superior primarily due to the automated sensor placement. The correlation coefficients obtained showed good agreement between the deflections measured by the two devices on all pavements tested except overlaid CRCP. This study indicates that there may be pavements and conditions for which the Dynaflect does not provide useful information or where present methods of data interpretation do not appear to be adequate.
Publisher:
ISBN:
Category : Dynaflect
Languages : en
Pages : 153
Book Description
A literature search was made for the purpose of comparing deflection measuring devices. The Dynaflect, Road Rater, and Falling Weight Deflectometer (FWD) ranked highest when compared, using the criteria of cost, operational characteristics, and suitability. Field testing proved the Dynaflect and FWD were nearly equal in overall ability except in operational speed. Here the Dynaflect was superior primarily due to the automated sensor placement. The correlation coefficients obtained showed good agreement between the deflections measured by the two devices on all pavements tested except overlaid CRCP. This study indicates that there may be pavements and conditions for which the Dynaflect does not provide useful information or where present methods of data interpretation do not appear to be adequate.
Evaluation of the Model 2000 Road Rater. Final Report
Public Roads
Mechanistic Interpretation of Nondestructive Pavement Testing Deflections
Author: Mario S. Hoffman
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 270
Book Description
Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 270
Book Description
Correlation of Frost Depth, Thaw Periods and Pavement Deflection to Spring Load Restrictions. Final Report
Author: Donald A. Madden
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 78
Book Description
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 78
Book Description
Special Report
Asphalt Rheology
Author: Oliver E. Briscoe
Publisher: ASTM International
ISBN: 0803109385
Category : Asphalt
Languages : en
Pages : 210
Book Description
Publisher: ASTM International
ISBN: 0803109385
Category : Asphalt
Languages : en
Pages : 210
Book Description