Author: Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 108
Book Description
The Falling Weight Deflectometer for Nondestructive Evaluation of Rigid Pavements
Author: Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 108
Book Description
Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: Shiraz D. TayabjiPublisher: ASTM International
ISBN: 0803128584
Category : Materials
Languages : en
Pages : 534
Book Description
As with the previous two symposia, the 32 papers from the June/July, 1999, Seattle symposium present advances in the nondestructive testing of pavements using conventional falling weight deflectometer techniques and other promising techniques such as ground penetrating radar, rolling weight deflecto
Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: ASTM Committee D-18 on Soil and Rock. Subcommittee D-4 on Road and Paving MaterialsPublisher: ASTM International
ISBN: 0803118651
Category : Fatigue
Languages : en
Pages : 528
Book Description
The proceedings of June 1993 international symposium held in Atlanta, Georgia, called specifically to develop and standardized evaluation procedures for non-destructive methods of testing pavements. The 29 papers discuss analytical models and techniques, measurement and calculation techniques in the field and laboratory, problems and errors associated with backcalculation methods and design parameters, and testing for other pavement uses. Also includes a history of the quest for a standard and the status of that effort. Reproduced from typescripts. Annotation copyright by Book News, Inc., Portland, OR
Evaluation of the Falling Weight Deflectometer
Author: Ronald NetemeyerPublisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 148
Book Description
Nondestructive Testing of Pavements and Backcalculation of Moduli
Author: Albert Jasper BushPublisher: ASTM International
ISBN: 0803112602
Category : Kaldırımlar-Deneme
Languages : en
Pages : 701
Book Description
Temperature Differential Effect on the Falling Weight Deflectometer Deflections Used for Structural Evaluation of Rigid Pavements
Author: Gustavo E. Morales-ValentinPublisher:
ISBN:
Category : Pavements
Languages : en
Pages : 140
Book Description
Non-destructive Testing
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Non-destructive testing of pavement structures can be achieved by accurately measuring and interpreting deflection data. this paper describes a computer program designed for simple and fast processing of deflection data collected using a falling weight deflectometer (fwd). a set of diagnostic parameters are calculated: first, maximum horizontal strain in the asphalt concrete (ac) under the test load, directly via the corresponding maximum curvature; next, the elastic stiffness (or young's modulus) of the subgrade; and finally, the vertical stress, strain and deflection on top of the subgrade, by means of an improved method of equivalent layer thickness. the actual stresses, strains, and deflections at test conditions can be normalized for standard ac temperature and standard test load. diagnostic and design applications are discussed. comparisons are made with parallel elastic layer analysis computations. for the covering abstract of the conference see irrd 807201.
Environmental Effects on the Non-destructive Evaluation of Plain Jointed Concrete Pavements Using Falling Weight Deflectometer
Author: Satish Babu KodavaliPublisher:
ISBN:
Category :
Languages : en
Pages : 238
Book Description
Pavement Evaluation with a Non-destructive Method
Author: Amin RezaeezadehEvaluation of Concrete Pavements Using Nondestructive Testing Techniques
Author: Ernest J. BarenbergPublisher:
ISBN:
Category : Pavements
Languages : en
Pages : 214
Book Description
An evaluation of NDT equipment and acquisition of a Falling Weight Deflectometer (FWD) for the Illinois Department of Transportation was accomplished. This was followed by an extensive testing program using the FWD to evaluate concrete pavements in Illinois. Test results were evaluated and procedures developed for testing and evaluation of jointed and continuously reinforced concrete pavements. Results show that some causes of incipient distresses can be detected using the FWD device including subgrade strength, loss of load transfer and development of voids. Recommendations for rehabilitations are presented in the final report.