Mechanistic Design Concepts For Conventional Flexible Pavements

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Mechanistic Design Concepts For Conventional Flexible Pavements

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Author : R. P. Elliott
language : en
Publisher:
Release Date : 1985

Mechanistic Design Concepts For Conventional Flexible Pavements written by R. P. Elliott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with ILLI-PAVE (Computer program). categories.

Mechanistic design concepts for conventional flexible pavement (asphalt concrete (AC) surface + granular base/subbase) for highways are proposed and validated. The procedure is based on ILLI-PAVE, a stress dependent finite element computer program, coupled with appropriate transfer functions. Two design criteria are considered: AC flexural fatigue cracking and subgrade rutting. Fatigue cracking is controlled by limiting the tensile strain at the bottom of the AC layer. Subgrade rutting is controlled by limiting the stress-ratio at the granular layer-subgrade interface. Algorithms were developed relating pavement response parameters (stresses, strains, deflections) to AC thickness, AC moduli, granular layer thickness, and subgrade moduli. Extensive analyses of the AASHO Road Test flexible pavement data are presented supporting the validity of the proposed concepts.

Mechanistic Empirical Evaluation Of The Mn Road Mainline Flexible Pavement Sections

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Author : Claribel Alvarez
language : en
Publisher:
Release Date : 1998

Mechanistic Empirical Evaluation Of The Mn Road Mainline Flexible Pavement Sections written by Claribel Alvarez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Granular materials categories.

This study utilized Illinois DOT (IDOT) mechanistic-empirical (M-E) technology and Mn/ROAD mainline pavement section data and information to verify/refine/modify IDOT M-E analysis and design concepts and procedures for full-depth asphalt concrete (FDAC) and conventional flexible pavements (CFP). The Mn/ROAD mainline flexible pavements include eleven CFP and three FDAC pavement sections. Four different granular materials were used in the conventional flexible pavements. A fine-grained soil subgrade (R-value of about 12) is present throughout the mainline. Laboratory material testing results, field distress measurements, and FWD test data were used to study pavement deflection response and performance (rutting and asphalt concrete fatigue). The study demonstrated that the IDOT M-E analysis and design procedures for FDAC and CFP sections are adequate. The ILLI-PA VE structural model adequately predicts the pavement responses. The use of bi-linear (arithmetic) subgrade model and the "theta" granular material model ILLI-PA VE inputs closely replicate CFP field FWD deflection responses. The effect of granular material quality on CFP deflection response is very limited. The ILLI-PAVE FWD backcalculation algorithms are adequate for estimating the moduli of asphalt concrete and sub grade soils.

Mechanistic Design Concepts For Stabilized Base Pavements

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Author : Marshall R. Thompson
language : en
Publisher:
Release Date : 1986

Mechanistic Design Concepts For Stabilized Base Pavements written by Marshall R. Thompson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with ILLI-PAVE (Computer program) categories.

Concepts for a mechanistic based thickness design procedure for high strength stabilized base pavements are presented. The proposed procedure is based on stabilized layer fatigue consumption and a ILLI-PAVE based algorithm for estimating stabilized layer flexural stress. The design concept can easily be developed into a comprehensive practical thickness design procedure for Illinois DOT utilization. Appendix A is a State-of-the-Art summary entitled "The Selection of Stress-Strain, Strength, and Fatigue Relationships for use in Mechanistic Design Procedures." Appendix B is an "ILLI-PAVE Data Base for Stabilized Base Pavements."

Calibrated Mechanistic Structural Analysis Procedures For Pavements Final Report

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Author : Marshall R. Thompson
language : en
Publisher:
Release Date : 1992

Calibrated Mechanistic Structural Analysis Procedures For Pavements Final Report written by Marshall R. Thompson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Pavements categories.

A Proposed Conventional Flexible Pavement Thickness Design Procedure

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Author : Marshall R. Thompson
language : en
Publisher:
Release Date : 1988

A Proposed Conventional Flexible Pavement Thickness Design Procedure written by Marshall R. Thompson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with ILLI-PAVE (Computer program) categories.

Mechanistic Empirical Evaluation Of The Mn Road Low Volume Road Test Sections

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Author : Navneet Garg
language : en
Publisher:
Release Date : 1998

Mechanistic Empirical Evaluation Of The Mn Road Low Volume Road Test Sections written by Navneet Garg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Granular materials categories.

This study utilized I DOT mechanistic-empirical (M-E) procedures and Mn/ROAD low-volume road (LVR) data and information to verify/refine/modify analysis and design concepts and procedures for L VR flexible pavements. The Mn/ROAD L VR flexible pavements include conventional flexible, full-depth asphalt, surface-treatment and aggregate-surface sections. Laboratory test results, field distress measurements, and FWD test data were used to study the affect of granular material quality on pavement performance and deflection response. The results from the rapid shear tests, permanent deformation tests and field rutting measurements show that granular material rutting potential can be characterized by a rapid shear triaxial test at 15-psi confining pressure. For conventional flexible pavements, granular material quality did not affect the pavement deflection response, but material quality effects were significant for aggregate-surface and surface-treatment pavements. ILLI-PAVE predicted pavement responses were fairly accurate for sections with thicker asphalt concrete surfaces. The FWD deflection basin parameter AUPP (Area Under Pavement Profile) can be used to predict the strains at the bottom of AC layer. Effect of subgrade type on pavement response and performance was studied. Sandy subgrades showed little or no change in pavement structural response due to spring-thaw effects. For the cohesive subgrade sections, moisture changes and spring-thaw effects increased surface deflections. The study showed that the lOOT LVR flexible pavement mechanistic-empirical design concepts and procedures are valid and adequate.

Mechanistic Based Overlay Design Procedure For Flexible Pavements

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Author : Fawzi Al-kandari
language : en
Publisher:
Release Date : 1994

Mechanistic Based Overlay Design Procedure For Flexible Pavements written by Fawzi Al-kandari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Pavements categories.

Nondestructive Testing Of Pavements And Backcalculation Of Moduli

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Author : Albert Jasper Bush
language : en
Publisher: ASTM International
Release Date : 1989

Nondestructive Testing Of Pavements And Backcalculation Of Moduli written by Albert Jasper Bush and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Kaldırımlar-Deneme categories.

Instrumentation And Overall Evaluation Of Perpetual And Conventional Flexible Pavement Designs

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Author : Mohab Y. El-Hakim
language : en
Publisher:
Release Date : 2009

Instrumentation And Overall Evaluation Of Perpetual And Conventional Flexible Pavement Designs written by Mohab Y. El-Hakim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

The perpetual structural pavement design is currently being explored for usage in Canada and worldwide. This thick structural design can provide many potential benefits but it also has associated costs. Cold Canadian winters and warm summers impact pavement performance and make pavement design challenging. This is further complicated by a heavy dependence on trucks to transport imports and exports. Consequently, most Canadian roads are subjected to rapid deterioration due to high fatigue stresses and rapid growth of the traffic loads. The concept of a perpetual pavement design was raised to overcome the limitation of structural capacity of the conventional pavement designs. The concept of perpetual pavement was explained and introduced in this thesis and the benefits behind the perpetual pavement construction were studied.

Mechanistic Empirical Design Approach For The Evaluation Of Flexible Pavements

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Author : Karan Kapoor
language : en
Publisher:
Release Date : 2004

Mechanistic Empirical Design Approach For The Evaluation Of Flexible Pavements written by Karan Kapoor and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Pavements categories.