Download or read book Evaluation of Concrete Pavements Using Nondestructive Testing Techniques written by Ernest J. Barenberg and published by . This book was released on 1988 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Evaluation of the Soniscope for Nondestructive Testing of Portland cement Concrete Pavements written by George M. Pace and published by . This book was released on 1966 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report presents the results obtained from the soniscope instrument for use in the nondestructive testing of portland-cement concrete pavements. Essentially, the instrument was tested to determine if consistent velocity measurements could be obtained with the transducers in a position vertical on the prestressed, reinforced, and plain concrete pavements. Also, of interest during the investigation was the maximum distance through portland-cement concrete for which consistent velocity measurements could be obtained. (Author).
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by ASTM Committee D-18 on Soil and Rock. Subcommittee D-4 on Road and Paving Materials and published by ASTM International. This book was released on 1994 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Non Destructive Assessment of Concrete Structures Reliability and Limits of Single and Combined Techniques written by Denys Breysse and published by Springer Science & Business Media. This book was released on 2012-01-20 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives information on non destructive techniques for assessment of concrete structures. It synthesizes the best of international knowledge about what techniques can be used for assessing material properties (strength) and structural properties (geometry, defects...). It describes how the techniques can be used so as to answer a series of usual questions, highlighting their capabilities and limits, and providing advices for a better use of techniques. It also focuses on possible combinations of techniques so as to improve the assessment. It is based on many illustrative examples and give in each case references to standards and guidelines.
Download or read book Final Summary Report written by Ernest J. Barenberg and published by . This book was released on 1991 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Asphaltic Concrete Pavement Structural Properties by Nondestructive Testing written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board. This book was released on 1990 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Joint and Subbase Efficiency in Rigid Pavements Using Nondestructive Testing written by Thomas E. Cousins and published by . This book was released on 1991 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rapid Measurement of Concrete Pavement Thickness and Reinforcement Location written by William G. Weber and published by Transportation Research Board National Research. This book was released on 1976 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents and presents the results of a study that evaluated currently available nondestructive testing systems that appeared to have potential for supplementing or replacing coring in determining concrete pavement thickness and reinforcement location. The evaluation was done primarily in the field. The principal work consisted of the systems under on-the-job conditions on eight paving projects in six states. The measurement technique were employed in conjunction with statistical acceptance criteria evolved in the course of the study.
Download or read book Handbook on Nondestructive Testing of Concrete written by V. M. Malhotra and published by CRC Press. This book was released on 2004 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Civil engineers will value this resource that examines the tools and techniques used to estimate the in-place strength on concrete, permeation properties that relate to potential durability, and the methods used to assess the internal condition of concrete and the corrosion activity of steel reinforcement.
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Shiraz D. Tayabji and published by ASTM International. This book was released on 2000 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Evaluation of Nondestructive Evaluation Methods for Application in Early Detection of Deterioration in Concrete Pavements written by and published by . This book was released on 2000 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three nondestructive evaluation (NDE) methods for concrete pavements--surface ultrasonic pulse velocity measurements (UPV), the impact-echo (IE) method, and the use of a seismic pavement analyzer (SPA)--were tested on six sections of two continuously reinforced concrete pavements. The results were compared with the actual condition of the concrete as determined by visual inspection, photographic imaging, and examination of cores extracted from the sections. The IE and surface UPV methods were the best in indicating the existence of macroscopic cracks. However, each must be used over a relatively long period of time to determine the deterioration rate of pavement. In addition, to be practical and efficient for application in pavement inspection, mechanization of the instrumentation of each method would be required. Even though the SPA did not compare favorably with the IE and surface UPV methods in detecting cracks and delaminations, it provided information that could be used to derive the overall qualitative condition of each test section. The results with the SPA had a high correlation with a petrographically determined rating for alkali-silica reactivity. This correlation, if verified, can serve as the basis for using the inspection system to collect information that may be used to predict the future condition of a pavement. In comparison with the other methods, the SPA would require the least additional development to be an effective inspection method. Photographic imaging was extremely valuable. Although it did not probe into the concrete as did the three NDE methods/systems investigated, it captured the surface cracks and other surface features that may well be useful indicators of the future condition of the pavements. In view of the recent advancements in the technology of high-resolution digital imaging systems and computers that can make this inspection method quantitative, which it seriously needs to be, photographic imaging deserves attention as an NDE method.
Download or read book Evaluation of Acceptance Strength Tests for Concrete Pavements written by Miguel Picornell-Darder and published by . This book was released on 2005 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North Carolina Department of Transportation has used traditionally flexural strength tests for acceptance testing of Portland cement concrete pavements. This report summarizes a research project implemented to investigate the feasibility of using other strength tests and nondestructive tests, to accomplish the same objective of ensuring an adequate modulus of rupture of the slab but avoiding or reducing the need to perform a large number of flexural strength determinations for acceptance testing. The present work has been laid around using a nondestructive test (a resonant column) to measure a seismic modulus that is used as a rating tool to evaluate the repeatability of duplicate specimens before the specimens are strength tested. This has been accomplished by developing regression lines and confidence and prediction intervals for the correlation of the seismic modulus to flexural, splitting tension, and compressive strength test. All these test show strong correlation coefficients and, thus, all have the possibility to be used in the prediction of flexural strength. The report suggests a new process for acceptance testing based on using a combination of compressive strength and seismic modulus. The selection of compression testing is based on the perceived know-how of the personnel of NCDOT throughout the State.
Download or read book A Utility Evaluation of Nondestructive Testing Devices Used on Asphalt Concrete Pavements written by Shelley Marie Stoffels and published by . This book was released on 1986 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation Procedures for the Determination of Concrete Pavement Thickness and Reinforcement Location written by W. G. Weber and published by . This book was released on 1973 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nondestructive Testing of Pavements and Backcalculation of Moduli written by Albert Jasper Bush and published by ASTM International. This book was released on 1989 with total page 701 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of an Expert System for Nondestructive Pavement Structural Evaluation written by Yein-Juin Chou and published by . This book was released on 1989 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nondestructive Testing of Concrete Pavements written by Allen J. Geswein and published by . This book was released on 1973 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
