Asphalt Overlay Design Methods for Rigid Pavements Considering Rutting, Reflection Cracking, and Fatigue Cracking. Cho, Y. Ph.D. Thesis, The University of Texas at Austin, United States – Texas. ISBN: 9798208843680![Asphalt Overlay Design Methods for Rigid Pavements Considering Rutting, Reflection Cracking, and Fatigue Cracking [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper abstract bibtex The overall objective of this study is to provide basic performance information of asphalt overlays on rigid pavements and a design tool for supporting a long-range rehabilitation plan for US 59 in the Lufkin District. A factorial of specific overlay methods were applied to several test sections with the objective of preventing recurrent problems such as reflective cracking. Data collection was performed before the construction of the test sections, during construction, and after construction of the test sections under a carefully designed monitoring program. In addition, a weigh-in-motion (WIM) device was installed at the test site to collect traffic-related information as well as pavement and ambient temperature. From the initial stages of the pavement overlay performance measurements, the following information was collected: (1) Detailed traffic information such as axle weights and lateral displacement; (2) performance of each rehabilitation alternative; and (3) effects of previous pavement condition and construction methods on overall performance. One of the best-performing test sections, based on reflection cracking performance, was an asphalt overlay over a flexible base. This test section did not develop any reflection cracking during the three years of service and monitoring. However, this test section developed severe rutting problems. A trade off has occurred between reflection cracking and rutting on the test section. Mechanistic models were developed based on the Finite Element Method (FEM) using a multi-purposed program called ABAQUS. The objective of this FEM modeling effort was to establish a structural configuration, using the flexible base overlay design, that would protect the pavement from both reflective cracking and rut development. In order to optimize computational time, the possibility of two-dimensional FEM modeling was studied by comparing the results with three-dimensional modeling. These comparisons showed that pavement behavior under traffic loading can be studied using an axisymmetric model, while thermal stresses can be modeled using a plane strain model. A temperature prediction model, was also developed using the Finite Differences Method (FDM). Finally, based on both empirical data and FEM modeling, design equations were developed by using a fractional factorial experiment design. An Analysis of Variance (ANOVA) was performed to identify significant factors, and then a design equation was developed using regression analysis. After developing the design equation, an asphalt overlay design method was proposed and optimized to minimize cost using a Linear Programming model.
@phdthesis{cho_asphalt_nodate,
address = {United States -- Texas},
type = {Ph.{D}.},
title = {Asphalt {Overlay} {Design} {Methods} for {Rigid} {Pavements} {Considering} {Rutting}, {Reflection} {Cracking}, and {Fatigue} {Cracking}},
copyright = {Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.},
url = {https://www.proquest.com/dissertations/docview/304207198/abstract/331AE70ACB104F71PQ/5},
abstract = {The overall objective of this study is to provide basic performance information of asphalt overlays on rigid pavements and a design tool for supporting a long-range rehabilitation plan for US 59 in the Lufkin District. A factorial of specific overlay methods were applied to several test sections with the objective of preventing recurrent problems such as reflective cracking. Data collection was performed before the construction of the test sections, during construction, and after construction of the test sections under a carefully designed monitoring program. In addition, a weigh-in-motion (WIM) device was installed at the test site to collect traffic-related information as well as pavement and ambient temperature. From the initial stages of the pavement overlay performance measurements, the following information was collected: (1) Detailed traffic information such as axle weights and lateral displacement; (2) performance of each rehabilitation alternative; and (3) effects of previous pavement condition and construction methods on overall performance.
One of the best-performing test sections, based on reflection cracking performance, was an asphalt overlay over a flexible base. This test section did not develop any reflection cracking during the three years of service and monitoring. However, this test section developed severe rutting problems. A trade off has occurred between reflection cracking and rutting on the test section.
Mechanistic models were developed based on the Finite Element Method (FEM) using a multi-purposed program called ABAQUS. The objective of this FEM modeling effort was to establish a structural configuration, using the flexible base overlay design, that would protect the pavement from both reflective cracking and rut development.
In order to optimize computational time, the possibility of two-dimensional FEM modeling was studied by comparing the results with three-dimensional modeling. These comparisons showed that pavement behavior under traffic loading can be studied using an axisymmetric model, while thermal stresses can be modeled using a plane strain model. A temperature prediction model, was also developed using the Finite Differences Method (FDM).
Finally, based on both empirical data and FEM modeling, design equations were developed by using a fractional factorial experiment design. An Analysis of Variance (ANOVA) was performed to identify significant factors, and then a design equation was developed using regression analysis. After developing the design equation, an asphalt overlay design method was proposed and optimized to minimize cost using a Linear Programming model.},
language = {English},
urldate = {2023-08-28},
school = {The University of Texas at Austin},
author = {Cho, Yoon-Ho},
note = {ISBN: 9798208843680},
keywords = {Applied sciences, cracking},
}
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Data collection was performed before the construction of the test sections, during construction, and after construction of the test sections under a carefully designed monitoring program. In addition, a weigh-in-motion (WIM) device was installed at the test site to collect traffic-related information as well as pavement and ambient temperature. From the initial stages of the pavement overlay performance measurements, the following information was collected: (1) Detailed traffic information such as axle weights and lateral displacement; (2) performance of each rehabilitation alternative; and (3) effects of previous pavement condition and construction methods on overall performance. One of the best-performing test sections, based on reflection cracking performance, was an asphalt overlay over a flexible base. This test section did not develop any reflection cracking during the three years of service and monitoring. However, this test section developed severe rutting problems. A trade off has occurred between reflection cracking and rutting on the test section. Mechanistic models were developed based on the Finite Element Method (FEM) using a multi-purposed program called ABAQUS. The objective of this FEM modeling effort was to establish a structural configuration, using the flexible base overlay design, that would protect the pavement from both reflective cracking and rut development. In order to optimize computational time, the possibility of two-dimensional FEM modeling was studied by comparing the results with three-dimensional modeling. These comparisons showed that pavement behavior under traffic loading can be studied using an axisymmetric model, while thermal stresses can be modeled using a plane strain model. A temperature prediction model, was also developed using the Finite Differences Method (FDM). Finally, based on both empirical data and FEM modeling, design equations were developed by using a fractional factorial experiment design. An Analysis of Variance (ANOVA) was performed to identify significant factors, and then a design equation was developed using regression analysis. 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A factorial of specific overlay methods were applied to several test sections with the objective of preventing recurrent problems such as reflective cracking. Data collection was performed before the construction of the test sections, during construction, and after construction of the test sections under a carefully designed monitoring program. In addition, a weigh-in-motion (WIM) device was installed at the test site to collect traffic-related information as well as pavement and ambient temperature. From the initial stages of the pavement overlay performance measurements, the following information was collected: (1) Detailed traffic information such as axle weights and lateral displacement; (2) performance of each rehabilitation alternative; and (3) effects of previous pavement condition and construction methods on overall performance.\nOne of the best-performing test sections, based on reflection cracking performance, was an asphalt overlay over a flexible base. This test section did not develop any reflection cracking during the three years of service and monitoring. However, this test section developed severe rutting problems. A trade off has occurred between reflection cracking and rutting on the test section.\nMechanistic models were developed based on the Finite Element Method (FEM) using a multi-purposed program called ABAQUS. The objective of this FEM modeling effort was to establish a structural configuration, using the flexible base overlay design, that would protect the pavement from both reflective cracking and rut development.\nIn order to optimize computational time, the possibility of two-dimensional FEM modeling was studied by comparing the results with three-dimensional modeling. These comparisons showed that pavement behavior under traffic loading can be studied using an axisymmetric model, while thermal stresses can be modeled using a plane strain model. A temperature prediction model, was also developed using the Finite Differences Method (FDM).\nFinally, based on both empirical data and FEM modeling, design equations were developed by using a fractional factorial experiment design. An Analysis of Variance (ANOVA) was performed to identify significant factors, and then a design equation was developed using regression analysis. 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