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Constructing Smooth Hot Mix Asphalt (HMA) Pavements by Mary Stroup-Gardiner Pdf
This publication contains papers presented at a December 2001 symposium, focusing on hot mix asphalt (HMA) smoothness measurements, specifications, and equipment. Five papers provide insight into the development and implementation of roughness specifications for pavements, and two papers offer natio
Recent Developments in Pavement Engineering by Sherif Badawy,Dar-Hao Chen Pdf
This book brings together scientific experts in different areas that contribute to the design, analysis, and performance of sustainable pavements. This book also contributes to transportation engineering challenges and solutions, evaluate the state of the art, identify the shortcomings and opportunities for research, and promote the interaction with the industry. In particular, scientific topics that are addressed in this book include the use of different waste and recycled materials to improve pavement performance, pavement maintenance and rehabilitation, urban heat island due to transportation infrastructure and its mitigation techniques, machine learning applications in the prediction of pavement distresses, and analysis of pavement overlay.
Performance Improvement in Construction Management by Brian Atkin,Jan Borgbrant Pdf
Novel research in construction management is often distant from existing practice. This collection of reviews serves to bridge this gap under three major themes: innovation, organisation and human behaviour, and methods and tools. It outlines a series of successful collaborative projects between industry and the academic and research communities. Many of the authors have worked in technology transfer, as change agents, resolving industrially-relevant problems by using scientifically-based research. The book reveals the source of ideas, data and results to provide a useful resource for researchers, academics and graduate students, and a challenging guide for senior industry managers.
High Performance Hot Mix Asphalt Pavements for Intersections by Timothy Aschenbrener Pdf
A program has begun in Colorado to prove that HMA pavements can be effectively constructed at intersections and provide significant benefits to the owner. To many highway agencies, performance, construction speed, and cost are the three key issues to consider when rehabilitating or reconstructing high traffic intersections. Therefore, demonstration projects were organized by the Colorado Asphalt Pavement Association (CAPA) to demonstrate performance, construction speed and cost advantages over PCC pavements at high traffic intersections in Colorado. This paper documents the planning, design, and construction processes that were followed to successfully build an HMA pavement at an intersection carrying over 7.7 million 18 kip (8200 kg) ESALs for a 20-year design.
Constructing Smooth Hot Mix Asphalt (HMA) Pavements by Mary Stroup-Gardiner Pdf
"Resilient modulus indicates the stiffness of a soil under controlled confinement conditions and repeated loading. The test is intended to simulate the stress conditions that occur in the base and subgrade of a pavement system. Resilient modulus has been adopted by the U.S. federal highway administration as the primary performance parameter for pavement design. We thank those who prepared these papers, the reviewers who provided anonymous peer reviews, and those who participated in the symposium. We hope this STP encourages more work to improve the testing standard and the value of the Resilient Modulus test."
Long and Deep Tunnels by Vittorio Guglielmetti,Shulin Xu,Gianni Alberto Arrigoni,Piergiorgio Grasso Pdf
The design and construction of “long and deep” tunnels, i.e. tunnels under mountains, characterised by either considerable length and/or overburden, represent a considerable challenge. The scope of this book is not to instruct how to design and construct such tunnels but to share a method to identify the potential hazards related to the process of designing and constructing long and deep tunnels, to produce a relevant comprehensive analysis and listing, to quantify the probability and consequences, and to design proper mitigation measures and countermeasures. The design, developed using probabilistic methods, is verified during execution by means of the so called Plan for Advance of the Tunnel (PAT) method, which allows adapting the design and control parameters of the future stretches of the tunnel to the results of the stretches already finished, using the monitoring data base. Numerous criteria are given to identify the key parameters, necessary for the PAT procedure. Best practices of excavation management with the help of real time monitoring and control are also provided. Furthermore cost and time evaluation systems are analysed. Finally, contractual aspects related to construction by contract are investigated, for best development and application of models more appropriate for tunnelling-construction contracts. The work will be of interest to practising engineers, designers, consultants and students in mining, underground, tunnelling, transportation and construction engineering, as well as to foundation and geological engineers, urban planners/developers and architects.
Large-stone Hot Mix Asphalt Pavements by David A. Price Pdf
Large-stone hot mix asphalt (HMA) pavements have been promoted by various associations including the National Asphalt Pavement Association (NAPA) as an answer to rutting problems which exist with current pavement design. Until 1988 the Colorado Department of Transportation (CDOT) had little or no experience with the advantages or disadvantages of large-stone HMA pavements. This report investigates problems encountered in the construction of three large-stone HMA construction projects. Problems encountered with large-stone HMA include segregation of the mix and the validity of mix designs produced with standard test equipment. The study examined the following: the lab tests in use by the CDOT for large-stone pavements, constructability, field performance, and cost required to produce the mix.
