Full-depth Pavement Reclamation with Foamed Asphalt in California PDF Download

Author: David Jones
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 97

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Author: David Jones
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 271

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Author: Hechter Theyse
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 102

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Book Description

Author: Pengcheng Fu
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 9

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Author: Irwin Guada
Publisher:
ISBN:
Category : Asphalt
Languages : en
Pages : 31

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Author: Koral Buch
Publisher:
ISBN: 9781658413886
Category :
Languages : en
Pages :

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Book Description
Emerging sustainability concerns, along with economic benefits, have pushed the pavement industry to perform pavement recycling. Full-depth reclamation (FDR) is a common cold in-place flexible pavement rehabilitation technique used by The California Department of Transportation (Caltrans) since 2001. Although FDR is an accepted practice in the United States, mechanistic-empirical (M-E) performance models based on field data and laboratory tests have not yet been developed by any agency. This research offers an M-E fatigue damage model for FDR with portland cement (FDR-PC) and FDR with foamed asphalt and portland cement (FDR-FA). Accelerated testing sections for FDR-PC and FDR-FA were constructed and subjected to Heavy Vehicle Simulator loading with different load levels. A master curve equation was developed for each section based on the asphaltic master curve equation with backcalculated data. The data were collected in the field by falling weight deflectometer (FWD) and road surface deflectometer (RSD) and in a laboratory by resilient modulus testing on extracted field cores. Backcalculation of layer stiffness values after various amounts of load repetitions was done using the FWD and RSD data with the constrained extended Kalman filter, and the results were validated. A damage curve was fitted for each load level, and the pavement critical responses were examined. Then, an M-E fatigue damage model was calibrated for each section. The master curve equations and the fatigue damage models were found to be reliable, hence, will be implemented in CalME, the flexible pavement design software used by Caltrans. The option to design an FDR pavement with software has the potential to increase the use of the FDR recycling technique worldwide, thereby, positively impacting the environment and the economy, and aligning with the pavement industry's sustainability goals.

Author: Brian Marquis
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 40

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Book Description
This paper will evaluate the performance of the experimental application in which a specialized piece of equipment mills the existing bituminous pavement and base material and introduces Foamed Asphalt all in one process. The material is then graded and compacted. Traffic can operate on the stabilized base until a hot mix asphalt base and wearing surface is applied.

Author: Armelle Chabot
Publisher: Springer Nature
ISBN: 3030552365
Category : Technology & Engineering
Languages : en
Pages : 724

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Book Description
This volume gathers the latest advances, innovations, and applications in the field of accelerated pavement testing (APT), presented at the 6th International Conference on Accelerated Pavement Testing, in Nantes, France, in April 2022. Discussing APT, which involves rapid testing of full-scale pavement constructions for structural deterioration, the book covers topics such as APT facilities, APT of asphalt concrete and sustainable/innovative materials, APT for airfield pavements, testing of maintenance and rehabilitation solutions, testing of smart and multi-functional pavements, data analysis and modeling, monitoring and non-destructive testing, and efficient means of calibrating/developing pavement design methods. Featuring peer-reviewed contributions by leading international researchers and engineers, the book is a timely and highly relevant resource for materials scientists and engineers interested in determining the performance of pavement structures during their service life (10+ years) in a few weeks or months.

Author: Wynand JvdM. Steyn
Publisher: Transportation Research Board
ISBN: 0309223660
Category : Technology & Engineering
Languages : en
Pages : 257

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Book Description
"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: Michael Burrow
Publisher: MDPI
ISBN: 3039430882
Category : Science
Languages : en
Pages : 238

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Book Description
This Special Issue presents an in-depth analysis of transport research commissioned by the UK Department for International Development under the High Volume Transport Programme (2017-2023). The analysis done in the period 2018-2019 contributes to the UK response to improving transport in the low-income countries in Africa and South Asia. As a result, key priorities have been identified for applied research in 2020 to make road, rail and urban transport more efficient and affordable, and all transport greener, safer and more inclusive for all users. This applied research is a vital link in making transport a sustainable lifeline for people in low-income countries, because transport gives farmers and manufacturers access to domestic and international markets and people in rural and urban areas access to schools and health services.