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Author : Austroads Ltd
Publisher :
ISBN 13 : 9781921329104
Total Pages : 105 pages
Book Rating : 4.3/5 (291 download)
Download or read book Optimum Use of Granular Bases written by Austroads Ltd and published by . This book was released on 2007 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Austroads Ltd
Publisher :
ISBN 13 : 9781921329463
Total Pages : 142 pages
Book Rating : 4.3/5 (294 download)
Download or read book Optimum Use of Granular Bases written by Austroads Ltd and published by . This book was released on 2008 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summary: "Over the last decade a considerable amount of research effort has been focussed on the development of a repeated load triaxial (RLT) test procedure to assist practitioners in the use of natural and marginal unbound base/subbase materials in road pavements. A significant hindrance to the widespread adoption of the RLT test has been the lack of data linking the results of the laboratory test to field performance. In order to address this issue, Austroads established a research project, titled ʻBetter Basis for Bases: Optimum Use of Granular Materialsʼ. A major component of this research project entails the loading of test pavements with the Accelerated Loading Facility. This report details the construction of the test pavements.
Author : E. Tutumluer
Publisher :
ISBN 13 :
Total Pages : 180 pages
Book Rating : 4.:/5 (868 download)
Download or read book Practices for Unbound Aggregate Pavement Layers written by E. Tutumluer and published by . This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 445: Practices for Unbound Aggregate Pavement Layers consolidates information on the state-of-the-art and state-of-the-practice of designing and constructing unbound aggregate pavement layers. The report summarizes effective practices related to material selection, design, and construction of unbound aggregate layers to potentially improve pavement performance and longevity."--Publisher website.
Author : David Jones
Publisher : CRC Press
ISBN 13 : 0203073010
Total Pages : 560 pages
Book Rating : 4.2/5 (3 download)
Download or read book Advances in Pavement Design through Full-scale Accelerated Pavement Testing written by David Jones and published by CRC Press. This book was released on 2012-10-08 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pack: Book and CDInternationally, full-scale accelerated pavement testing, either on test roads or linear/circular test tracks, has proven to be a valuable tool that fills the gap between models and laboratory tests and long-term experiments on in-service pavements. Accelerated pavement testing is used to improve understanding of pavement behavior,
Author : M. G. Winter
Publisher : Thomas Telford
ISBN 13 : 9780727729231
Total Pages : 32 pages
Book Rating : 4.7/5 (292 download)
Download or read book The determination of the acceptability of selected fragmenting materials for earthworks compaction : prepared for National Roads Directorate, Scottish Office Development Department written by M. G. Winter and published by Thomas Telford. This book was released on 1999 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Executive Summary - Introduction - Fragmentation - Fragmenting materials - Potential use - Discussion - Summary - Acknowledgements - References - Notes - Abstract - Related publications
Author : Xiong Yu
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (43 download)
Download or read book The Performance and Economic Benefits of Thick Granular Base for Flexible Pavement Design in Ohio written by Xiong Yu and published by . This book was released on 2009 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: This student study project investigates the feasibility of using thick granular base for flexible pavement design in Ohio. The criteria considered include the performance criteria and life cycle economic analyses. The performance of different types of base layer design are compared using the LTTP database. The focus is on the ability of achieving uniform dynamic deflections using Falling Weight Deflectometer (FWD) data. Based on FWD record from LTTP database, the relative merits of different base type design are compared. The pavement performance is predicted using MEPDG design software. A sensitivity study is conducted on the effects of granular base layer parameters on the pavement performance. From the relative improvement in terms of pavement distress reduction, an optimal base layer thickness of 12 in to 15 inch is identified. The use of thicker granular base (from the current 4 in to 6 in granular base currently used in Ohio to 12 inch thick granular base) is predicted to increase the pavement service life for around 30% using the criteria for common types of distresses. A life cycle analyses are conducted using a simplified model. The model indicates that for the typical Ohio flexible pavement sections, doubling the thickness of base layer, while causes higher initial construction cost, will result in life cycle cost savings. Thus performance prediction using MEPDG and life cycle economic analyses both support positively the use of granular base in flexible pavement design in Ohio. It is also found in this study that the climate model of the existing MEPDG design software does not adequately account for the regional climate conditions (such as freeze-thawing effects) on pavement performance. It is recommended to conduct further analyses of field performance data to validate the MEPDG model predictions. Finally, recommendations are provided on the specifications for screening the supplying sources of granular materials for granular base construction.
Author : Gregory E. Halsted
Publisher :
ISBN 13 : 9780893122539
Total Pages : 20 pages
Book Rating : 4.1/5 (225 download)
Download or read book Guide to Cement-treated Base (CTB) written by Gregory E. Halsted and published by . This book was released on 2006 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cement-treated base (CTB) is a general term that applies to an mixture of native soils and/or manufactured aggregates with measured amounts of portland cement and water that is compacted and cured to form a strong, durable, frost resistant paving material. Other descriptions such as soil-cement base, cement-treated aggregate base, cement-stabilized base are sometimes used. This document provides a basic guide on the use of cement-treated base (CTB) for pavement applications. This document provides on overview on the design and construction of CTB for both mixed-in-place and central plant mixed operations. A suggested construction specification is also included.
Author : Zongzhi Li
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (555 download)
Download or read book Optimal Investment Decision-making for Highway Transportation Asset Management Under Risk and Uncertainty written by Zongzhi Li and published by . This book was released on 2007 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wynand JvdM. Steyn
Publisher : Transportation Research Board
ISBN 13 : 0309223660
Total Pages : 257 pages
Book Rating : 4.3/5 (92 download)
Download or read book Significant Findings from Full-scale Accelerated Pavement Testing written by Wynand JvdM. Steyn and published by Transportation Research Board. This book was released on 2012 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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"--
Author : A. Scarpas
Publisher : Springer Science & Business Media
ISBN 13 : 9400745664
Total Pages : 1340 pages
Book Rating : 4.4/5 (7 download)
Download or read book 7th RILEM International Conference on Cracking in Pavements written by A. Scarpas and published by Springer Science & Business Media. This book was released on 2012-08-30 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the recent past, new materials, laboratory and in-situ testing methods and construction techniques have been introduced. In addition, modern computational techniques such as the finite element method enable the utilization of sophisticated constitutive models for realistic model-based predictions of the response of pavements. The 7th RILEM International Conference on Cracking of Pavements provided an international forum for the exchange of ideas, information and knowledge amongst experts involved in computational analysis, material production, experimental characterization, design and construction of pavements. All submitted contributions were subjected to an exhaustive refereed peer review procedure by the Scientific Committee, the Editors and a large group of international experts in the topic. On the basis of their recommendations, 129 contributions which best suited the goals and the objectives of the Conference were chosen for presentation and inclusion in the Proceedings. The strong message that emanates from the accepted contributions is that, by accounting for the idiosyncrasies of the response of pavement engineering materials, modern sophisticated constitutive models in combination with new experimental material characterization and construction techniques provide a powerful arsenal for understanding and designing against the mechanisms and the processes causing cracking and pavement response deterioration. As such they enable the adoption of truly "mechanistic" design methodologies. The papers represent the following topics: Laboratory evaluation of asphalt concrete cracking potential; Pavement cracking detection; Field investigation of pavement cracking; Pavement cracking modeling response, crack analysis and damage prediction; Performance of concrete pavements and white toppings; Fatigue cracking and damage characterization of asphalt concrete; Evaluation of the effectiveness of asphalt concrete modification; Crack growth parameters and mechanisms; Evaluation, quantification and modeling of asphalt healing properties; Reinforcement and interlayer systems for crack mitigation; Thermal and low temperature cracking of pavements; and Cracking propensity of WMA and recycled asphalts.
Author : Ken Skorseth
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.3/5 ( download)
Download or read book Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Author : Richard D. Barksdale
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (1 download)
Download or read book A Study of Factors Affecting Crushed Stone Base Course Performance written by Richard D. Barksdale and published by . This book was released on 1983 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anand J. Puppala
Publisher : Transportation Research Board
ISBN 13 : 0309098114
Total Pages : 139 pages
Book Rating : 4.3/5 (9 download)
Download or read book Estimating Stiffness of Subgrade and Unbound Materials for Pavement Design written by Anand J. Puppala and published by Transportation Research Board. This book was released on 2008 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Author : Chaim Jehuda Poran
Publisher :
ISBN 13 :
Total Pages : 662 pages
Book Rating : 4.:/5 (2 download)
Download or read book Bearing Capacity of Geogrid-reinforced Granular-base Overlaying Soft Clay written by Chaim Jehuda Poran and published by . This book was released on 1985 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andreas Loizos
Publisher : CRC Press
ISBN 13 : 1351585797
Total Pages : 364 pages
Book Rating : 4.3/5 (515 download)
Download or read book Bearing Capacity of Roads, Railways and Airfields written by Andreas Loizos and published by CRC Press. This book was released on 2017-07-20 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bearing Capacity of Roads, Railways and Airfields includes the contributions to the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields (BCRRA 2017, 28-30 June 2017, Athens, Greece). The papers cover aspects related to materials, laboratory testing, design, construction, maintenance and management systems of transport infrastructure, and focus on roads, railways and airfields. Additional aspects that concern new materials and characterization, alternative rehabilitation techniques, technological advances as well as pavement and railway track substructure sustainability are included. The contributions discuss new concepts and innovative solutions, and are concentrated but not limited on the following topics: · Unbound aggregate materials and soil properties · Bound materials characteritics, mechanical properties and testing · Effect of traffic loading · In-situ measurements techniques and monitoring · Structural evaluation · Pavement serviceability condition · Rehabilitation and maintenance issues · Geophysical assessment · Stabilization and reinforcement · Performance modeling · Environmental challenges · Life cycle assessment and sustainability Bearing Capacity of Roads, Railways and Airfields is essential reading for academics and professionals involved or interested in transport infrastructure systems, in particular roads, railways and airfields.
Author : James G. Speight
Publisher : John Wiley & Sons
ISBN 13 : 1119510120
Total Pages : 784 pages
Book Rating : 4.1/5 (195 download)
Download or read book Coal-Fired Power Generation Handbook written by James G. Speight and published by John Wiley & Sons. This book was released on 2021-02-17 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal accounts for approximately one quarter of world energy consumption and of the coal produced worldwide approximately 65% is shipped to electricity producers and 33% to industrial consumers, with most of the remainder going to consumers in the residential and commercial sectors. The total share of total world energy consumption by coal is expected to increase to almost 30% in 2035. This book describes the challenges and steps by which electricity is produced form coal and deals with the challenges for removing the environmental objections to the use of coal in future power plants. New technologies are described that could virtually eliminate the sulfur, nitrogen, and mercury pollutants that are released when coal is burned for electricity generation. In addition, technologies for the capture greenhouse gases emitted from coal-fired power plants are described and the means of preventing such emissions from contributing to global warming concerns. Written by one of the world’s leading energy experts, this volume is a must-have for any engineer, scientist, or student working in this field, providing a valuable reference and guide in a quickly changing field.
Author : Tsau Young Lin
Publisher : Physica
ISBN 13 : 3790817910
Total Pages : 538 pages
Book Rating : 4.7/5 (98 download)
Download or read book Data Mining, Rough Sets and Granular Computing written by Tsau Young Lin and published by Physica. This book was released on 2013-11-11 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past few years, data mining has grown rapidly in visibility and importance within information processing and decision analysis. This is par ticularly true in the realm of e-commerce, where data mining is moving from a "nice-to-have" to a "must-have" status. In a different though related context, a new computing methodology called granular computing is emerging as a powerful tool for the conception, analysis and design of information/intelligent systems. In essence, data mining deals with summarization of information which is resident in large data sets, while granular computing plays a key role in the summarization process by draw ing together points (objects) which are related through similarity, proximity or functionality. In this perspective, granular computing has a position of centrality in data mining. Another methodology which has high relevance to data mining and plays a central role in this volume is that of rough set theory. Basically, rough set theory may be viewed as a branch of granular computing. However, its applications to data mining have predated that of granular computing.
