The Development of a Strategy for the Implementation of Full-scale Accelerated Pavement Testing for the Texas Highway Department

The Development of a Strategy for the Implementation of Full-scale Accelerated Pavement Testing for the Texas Highway Department
Author: Frederick Hugo
Publisher:
Total Pages: 106
Release: 1990
Genre: Accelerated life testing
ISBN:

This report describes CTR Study 1246, which proved to be very dynamic, in that the initial objectives were not only met, but they were followed up by new objectives. This was due to decisions taken by the project steering committee during the execution of the project. Following initial exploratory studies in 1988, the Texas SDHPT initiated the present study through which a strategy for the acquisition of a mobile accelerated pavement testing device had to be developed. Initially, the study focussed on the feasibility of accelerated testing and the need for it in Texas. As part of the initial study, the relationship of accelerated testing to overall pavement engineering was reviewed in detail. Once the feasibility had been illustrated, the objectives were redirected to the acquisition of a mobile accelerated pavement device. The different available methods and machines were evaluated, and subsequently the Mobile Load Simulator (MLS) was selected for future application on pavements in the state of Texas.

Application of Full-scale Accelerated Pavement Testing

Application of Full-scale Accelerated Pavement Testing
Author: J. B. Metcalf
Publisher: Transportation Research Board
Total Pages: 120
Release: 1996
Genre: Accelerated life testing
ISBN: 9780309060080

This synthesis, which describes the state of the practice for full- scale accelerated pavement testing (APT), will be of interest to state department of transportation (DOT) pavement design and materials engineers; DOT research staff, including field and laboratory materials testing personnel; and private industry APT equipment suppliers. State DOT administration and management personnel will have a particular interest in the application of APT results toward more efficient and effective pavement designs. Local transportation agencies may also have an interest in the topic. This synthesis reviews the capabilities and limitations of the major APT facilities available worldwide and describes the role and application of full-scale accelerated pavement testing in the development of pavement technology. This report of the Transportation Research Board (TRB) presents data obtained from a review of the literature and a survey of the state DOTs, Canadian transportation agencies, and international organizations. A brief historical overview of APT, a discussion of the application of APT to research, and the application of APT to practice are included. Profiles of APT facilities throughout the world are included in an appendix.

Electrical Measuring Instruments and Measurements

Electrical Measuring Instruments and Measurements
Author: S.C. Bhargava
Publisher: CRC Press
Total Pages: 572
Release: 2012-12-27
Genre: Computers
ISBN: 0415621380

This book, written for the benefit of engineering students and practicing engineers alike, is the culmination of the author's four decades of experience related to the subject of electrical measurements, comprising nearly 30 years of experimental research and more than 15 years of teaching at several engineering institutions. The unique feature of this book, apart from covering the syllabi of various universities, is the style of presentation of all important aspects and features of electrical measurements, with neatly and clearly drawn figures, diagrams and colour and b/w photos that illustrate details of instruments among other things, making the text easy to follow and comprehend. Enhancing the chapters are interspersed explanatory comments and, where necessary, footnotes to help better understanding of the chapter contents. Also, each chapter begins with a "recall" to link the subject matter with the related science or phenomenon and fundamental background. The first few chapters of the book comprise "Units, Dimensions and Standards"; "Electricity, Magnetism and Electromagnetism" and "Network Analysis". These topics form the basics of electrical measurements and provide a better understanding of the main topics discussed in later chapters. The last two chapters represent valuable assets of the book, and relate to (a) "Magnetic Measurements", describing many unique features not easily available elsewhere, a good study of which is essential for the design and development of most electric equipment – from motors to transformers and alternators, and (b) "Measurement of Non-electrical Quantities", dealing extensively with the measuring techniques of a number of variables that constitute an important requirement of engineering measurement practices. The book is supplemented by ten appendices covering various aspects dealing with the art and science of electrical measurement and of relevance to some of the topics in main chapters. Other useful features of the book include an elaborate chapter-by-chapter list of symbols, worked examples, exercises and quiz questions at the end of each chapter, and extensive authors' and subject index. This book will be of interest to all students taking courses in electrical measurements as a part of a B.Tech. in electrical engineering. Professionals in the field of electrical engineering will also find the book of use.

Significant Findings from Full-scale Accelerated Pavement Testing

Significant Findings from Full-scale Accelerated Pavement Testing
Author: Wynand JvdM. Steyn
Publisher: Transportation Research Board
Total Pages: 257
Release: 2012
Genre: Technology & Engineering
ISBN: 0309223660

"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 433: Significant Findings from Full-Scale Accelerated Pavement Testing documents and summarizes significant findings from the various experimental activities associated with full-scale accelerated pavement testing (f-sAPT) programs that have taken place between 2000 and 2011. The report also identifies gaps in knowledge related to f-sAPT and where future research may be needed. NCHRP Synthesis 433 is designed to expand the f-sAPT base of knowledge documented in NCHRP Syntheses 325 and 235, both with the same title of Significant Findings from Full-Scale Accelerated Pavement Testing. f-sAPT is the controlled application of a wheel loading, at or above the appropriate legal load limit, to a pavement system to determine pavement response in a compressed time period. The acceleration of damage is achieved by one or more of the following factors: increased repetitions, modified loading conditions, imposed climatic conditions, and thinner pavements with a decreased structural capacity which have shorter design lives"--

Vehicle-road Interaction

Vehicle-road Interaction
Author: Bohdan T. Kulakowski
Publisher: ASTM International
Total Pages: 264
Release: 1994
Genre: Pavements
ISBN: 0803118937

Proceedings of a conference held in Santa Barbara, California, in May 1992. Topics include simulation and analysis of trucks using the program BAMMS, predicting vertical dynamic tire forces of heavy trucks, factors affecting the design and use of the Texas Mobile Load Simulator, traction tests on an

Some Factors Affecting the Design and Use of the Texas Mobile Load Simulator

Some Factors Affecting the Design and Use of the Texas Mobile Load Simulator
Author: F. Hugo
Publisher:
Total Pages: 22
Release: 1994
Genre: Accelerated pavement testing
ISBN:

The Texas Department of Transportation (TxDOT) is implementing a strategy for full-scale accelerated pavement testing (APT). The Texas mobile load simulator (TxMLS) is being designed and manufactured as part of this strategy. Two 1:10 scale MLS models are also being used to conduct laboratory tests to enhance the design, understanding, and use of the machine.

Accelerated Pavement Testing

Accelerated Pavement Testing
Author: Emmanuel Bonsu Owusu-Antwi
Publisher:
Total Pages: 162
Release: 2000
Genre: Pavements
ISBN:

This study was conducted to evaluate the effectiveness of using accelerated pavement testing (APT) techniques to improve the efficiency and timelines of current pavement research activities. The report provides information on anticipated costs, resource needs and logistics, and recommendations for equipment selection, partnerships and implementation of an AZAPT program. The framework for a strategic research plan for an AZAPT program is also provided.

Significant Findings from Full-scale Accelerated Pavement Testing

Significant Findings from Full-scale Accelerated Pavement Testing
Author: Frederick Hugo
Publisher: Transportation Research Board
Total Pages: 213
Release: 2004
Genre: Accelerated life testing
ISBN: 0309069742

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 325: Significant Findings from Full-Scale Accelerated Pavement Testing documents and summarizes the findings from the various experimental activities associated with full-scale accelerated pavement testing programs.