Performance of Asphalt Concrete Airport Pavements During Thaw Weakening Periods PDF Download
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Author: Vincent C. Janoo
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 80
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Author: Vincent C. Janoo
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 80
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Author:
Publisher: DIANE Publishing
ISBN: 1428914021
Category :
Languages : en
Pages : 45
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Author: Vincent C. Janoo
Publisher:
ISBN:
Category : Electronic government information
Languages : en
Pages : 50
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Author:
Publisher:
ISBN:
Category : Cold regions
Languages : en
Pages : 360
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Author: Craig H. Benson
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 76
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Book Description
The objective of this study was to develop a method to predict the timing of weight limits on secondary highways in Wisconsin. Two types of weight limits are of interest: overloads when the pavement is frozen and weight restrictions during thawing and post-thawing recovery period. To meet this objective, three sections of secondary highways with flexible pavements were instrumented and monitored to determine how freezing, thawing, and post-thaw recovery affect pavement stiffness. Data collected from these sites were used to develop a computer model (UWFrost) that can be used to predict seasonal changes in the support capacity of pavements.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 576
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Author: Vincent C. Janoo
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 38
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Book Description
This investigation is part of CRREUs on-going characterization of pavement performance in seasonal frost areas. As part of the research, CRREL conducted several field studies for the Federal Aviation Administration (FM) on the response of airport pavements during thaw-weakening periods at three civil airports in Wisconsin, where the design freezing index in the area was around 900 to 1100oC-days and frost penetration ranged between 1250 to 2000 mm. This study focused on the performance of Portland Cement Concrete (PCC) pavements during the spring thaw-weakening period. The sites were instrumented with subsurface thermocouples and Falling Weight Deflectometer (FWD) tests were conducted during the spring thaw period at the center of the slab and across the joints. An analysis of the FWD data and backcalculation of the layer moduli using ILLIBACK and WESDEF was conducted. Unique relationships between the FWD deflections and the subgrade modulus and coefficient of subgrade reaction were obtained. Additional relationships were developed using the FWD deflections, PCC thickness and the horizontal tensile stress at the bottom of the PCC layer. A relationship between load transfer across joints and FWD deflections was also developed. On the basis of the relationships obtained in this study, a methodology for evaluating PCC pavements during spring thaw was developed. However, this methodology needs to be verified for other subgrade types and areas with other design freezing indices.
Author: Ted S. Vinson
Publisher: ASCE Publications
ISBN: 9780784474129
Category : Technology & Engineering
Languages : en
Pages : 334
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Book Description
This state-of-the-practice report on the design and development of roads and airfields is the eighth monograph in a series prepared by the Technical Council on Cold Regions Engineering of the American Society of Civil Engineers. Previous reports in the series covered such topics as frost action and its control embankment design, and arctic coastal processes. This book discusses such topics as: 1) Route-location/siting; 2) frost action; 3) design for permafrost conditions; 4) low temperature cracking; 5) maintenance; 6) use of geosynthetics; and 7) materials specifications and testing. This monograph contributes a substantial amount of new material to the Cold Regions Engineering series.
Author: Maureen A. Kestler
Publisher:
ISBN:
Category : Pavements, Asphalt concrete
Languages : en
Pages : 32
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Author: World Data Center A for Glaciology
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 414
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