Finite Element Simulation of Structural Performance on Flexible Pavements with Stabilized Base/treated Subbase Materials Under Accelerated Loading PDF Download
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Author: Zhong Wu
Publisher:
ISBN:
Category : Accelerated life testing
Languages : en
Pages : 2
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Book Description
PROBLEM: The full-scale accelerated pavement testing (APT) provides a unique tool for pavement engineers to directly collect pavement performance and failure data under heavy wheel loading. However, running a full-scale APT experiment is very expensive. Only a few selected pavement structures/materials can be tested using APT. Therefore, computer simulation of APT becomes a logical direction to expand the benefit from an APT study. Currently, no computer programs in the literature are able (or suitable) to predict the pavement rutting performance developed in a pavement structure containing chemically stabilized base or sub-base layers, such as cement treated or stabilized soils, slag or fly-ash treated BCS materials, and lime-treated soils as investigated currently at the Louisiana Transportation Research Center (LTRC). OBJECTIVE: The objective of this research is to develop a finite element (FE) model to simulate performance of pavement structures, specifically for rutting performance of the chemically stabilized base/sub-base materials, under accelerated loading. Initial validation of the model will be performed using results from a current LTRC study: Accelerated Loading Evaluation of a Sub-base Layer on Pavement Performance (ALF Experiment 4).
Author: Zhong Wu
Publisher:
ISBN:
Category : Accelerated life testing
Languages : en
Pages : 2
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Book Description
PROBLEM: The full-scale accelerated pavement testing (APT) provides a unique tool for pavement engineers to directly collect pavement performance and failure data under heavy wheel loading. However, running a full-scale APT experiment is very expensive. Only a few selected pavement structures/materials can be tested using APT. Therefore, computer simulation of APT becomes a logical direction to expand the benefit from an APT study. Currently, no computer programs in the literature are able (or suitable) to predict the pavement rutting performance developed in a pavement structure containing chemically stabilized base or sub-base layers, such as cement treated or stabilized soils, slag or fly-ash treated BCS materials, and lime-treated soils as investigated currently at the Louisiana Transportation Research Center (LTRC). OBJECTIVE: The objective of this research is to develop a finite element (FE) model to simulate performance of pavement structures, specifically for rutting performance of the chemically stabilized base/sub-base materials, under accelerated loading. Initial validation of the model will be performed using results from a current LTRC study: Accelerated Loading Evaluation of a Sub-base Layer on Pavement Performance (ALF Experiment 4).
Author: Zhong Wu
Publisher:
ISBN:
Category : Accelerated life testing
Languages : en
Pages : 113
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Book Description
The objective of the research is to develop a finite element (FE) model(s) to simulate pavement structural performance of stabilized base and treated subbase materials under accelerated loading so that the performance of pavement structures with other stabilized base and subbase materials can be predicted without running accelerated pavement testing (APT) tests. A permanent deformation (P-D) material model was proposed in this study to simulate the permanent deformation behavior of pavement base and subgrade materials under repeated loading.
Author: Inge Hoff
Publisher: CRC Press
ISBN: 100073871X
Category : Technology & Engineering
Languages : en
Pages : 673
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Book Description
Innovations in Road, Railway and Airfield Bearing Capacity – Volume 3 comprises the third part of contributions to the 11th International Conference on Bearing Capacity of Roads, Railways and Airfields (2022). In anticipation of the event, it unveils state-of-the-art information and research on the latest policies, traffic loading measurements, in-situ measurements and condition surveys, functional testing, deflection measurement evaluation, structural performance prediction for pavements and tracks, new construction and rehabilitation design systems, frost affected areas, drainage and environmental effects, reinforcement, traditional and recycled materials, full scale testing and on case histories of road, railways and airfields. This edited work is intended for a global audience of road, railway and airfield engineers, researchers and consultants, as well as building and maintenance companies looking to further upgrade their practices in the field.
Author: Andreas Loizos
Publisher: CRC Press
ISBN: 1351585789
Category : Technology & Engineering
Languages : en
Pages : 3209
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Book Description
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: A. Nikolaides
Publisher: CRC Press
ISBN: 1315668165
Category : Technology & Engineering
Languages : en
Pages : 884
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Book Description
Bituminous Mixtures and Pavements contains 113 accepted papers from the 6th International ConferenceBituminous Mixtures and Pavements (6th ICONFBMP, Thessaloniki, Greece, 10-12 June 2015). The 6th ICONFBMP is organized every four years by the Highway Engineering Laboratory of the Aristotle University of Thessaloniki, Greece, in conjunction with
Author: J. B. Metcalf
Publisher: Transportation Research Board
ISBN: 9780309060080
Category : Accelerated life testing
Languages : en
Pages : 120
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Book Description
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.
Author: Bassam Saad
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Inge Hoff
Publisher: CRC Press
ISBN: 1000533336
Category : Technology & Engineering
Languages : en
Pages : 501
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Book Description
Innovations in Road, Railway and Airfield Bearing Capacity – Volume 1 comprises the first part of contributions to the 11th International Conference on Bearing Capacity of Roads, Railways and Airfields (2022). In anticipation of the event, it unveils state-of-the-art information and research on the latest policies, traffic loading measurements, in-situ measurements and condition surveys, functional testing, deflection measurement evaluation, structural performance prediction for pavements and tracks, new construction and rehabilitation design systems, frost affected areas, drainage and environmental effects, reinforcement, traditional and recycled materials, full scale testing and on case histories of road, railways and airfields. This edited work is intended for a global audience of road, railway and airfield engineers, researchers and consultants, as well as building and maintenance companies looking to further upgrade their practices in the field.
Author: Abdelaziz Ahmed Bohagr
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Louisiana Transportation Research Center
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 26
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Book Description
