You are here

Engineering Properties of Florida Concrete Mixes for Implementing the Aashto Recommended Mechanistic Empirical Rigid Pavement Design Guide

Title: Engineering Properties of Florida Concrete Mixes for Implementing the Aashto Recommended Mechanistic Empirical Rigid Pavement Design Guide.
62 views
28 downloads
Name(s): Kampmann, Raphael, author
Ping, Wei-Chou V., professor directing thesis
Rambo-Roddenberry, Michelle, committee member
Abichou, Tarek, committee member
Department of Civil and Environmental Engineering, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2008
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The coefficient of thermal expansion (CTE) is a fundamental property of Portland cement concrete (PCC). The magnitude of temperature-related pavement deformations is directly proportional to the CTE during the pavement design life. Because of its critical effect on PCC performance, it is proposed to be considered for distress and smoothness prediction by the newly developed Mechanistic-Empirical Pavement Design Guide (M-E PDG). To account for M-E PDG implementation in Florida, three typical Florida concrete mixtures were experimentally measured for compressive strength, flexural strength, splitting tensile strength, Young's modulus, Poisson's ratio, and CTE according to AASHTO TP-60. The test results revealed that PCC's CTE rapidly increases within the first week but stabilizes after 28 days. However, to accurately analyze the mix designs using the new mechanistic-empirical concept considering all three hierarchy levels, nine different JPCP models were generated. Their PCC layer thicknesses were iteratively determined before the resultant pavement structures were evaluated based on the predicted distresses (faulting and cracking) and smoothness (IRI). It was found, that cracking is the most critical pavement performance criterion for Florida JPCP. Moreover, top-down fatigue damage was isolated to be the controlling failure mechanism because of insignificant faulting and minor smoothness reduction. Based on the thickness idealized JPCP models, a CTE sensitivity matrix was developed for adequate comparison of predicted pavement performance under interchanging CTE values. Despite wide ranging properties, clear patterns were exposed and distinctive performance envelopes arose for certain criteria. It was established that the new M-E PDG, is minimally CTE sensitive to faulting, CTE sensitive to bottom-up damage (for thin PCC layers), and extremely CTE sensitive to top-down damage, cracking, and smoothness.
Identifier: FSU_migr_etd-3358 (IID)
Submitted Note: A Thesis submitted to the Department of Civil and Environmental Engineering in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Summer Semester, 2008.
Date of Defense: July 14, 2008.
Keywords: jpcp, Rigid Pavement, Pavement Performance, Mechanistic-Empirical Pavement Design Guide, Coefficient of Thermal Expansion, cte Sensitivity
Bibliography Note: Includes bibliographical references.
Advisory Committee: Wei-Chou V. Ping, Professor Directing Thesis; Michelle Rambo-Roddenberry, Committee Member; Tarek Abichou, Committee Member.
Subject(s): Civil engineering
Environmental engineering
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_etd-3358
Owner Institution: FSU

Choose the citation style.
Kampmann, R. (2008). Engineering Properties of Florida Concrete Mixes for Implementing the Aashto Recommended Mechanistic Empirical Rigid Pavement Design Guide. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_etd-3358