Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of High Performance Concrete Pavement Sections Along I-90 Near Tomah, Wisconsin
This report presents the analysis of the High Performance Concrete (HPC) pavement sections constructed along the eastbound lanes of Interstate 90 near Tomah, Wisconsin. The test sections are the first specific HPC pavements designed and built in the State of Wisconsin and represent the current trends in building highway pavements with significantly longer service lives. Deflection data obtained with the WisDOT Falling Weight Deflectometer (FWD) was used to characterize the pavement materials within each section and to provide inputs for detailed mechanistic-empirical pavement analyses. The FWD data analysis indicated general uniformity within eachc onstructed section, in terms of thec oncrete slab elastic modulus and foundation support k-value. The doweled transverse contraction joints within each test section are providing adequate load transfer, with measure deflection load transfers in excess of 90% for all sections. The deflection load transfer measured across the longitudinal joint separating the driving lane and the tied-concrete shoulder was adequate within TS1 (90%) but significantly reduced within TS2 (35%). The Mechanistic Empirical Pavement Design Guide (MEPDG) software was used to provide 60-year predictions of pavement performance within each test section. The results indicate all sections should remain below a threshold value of 0.25 inches of transverse joint faulting throughout this period. Furthermore, no slab cracking is predicted within the HPC test sections 1 and 2; however, approximately 25% slab cracking is predicted within the control section (TS3). Thsi increased slab cracknig is above the threshold value of 15% slab cracking but below the terminal value of 50% slab cracking. The MEPDG software predicts 60-year IRI values above the threshold value of 180 inches per mile for all test sections. This result is predominantly due to predictions of high levels of joint spalling, which may be biasing the results.
Analysis of High Performance Concrete Pavement Sections Along I-90 Near Tomah, Wisconsin
This report presents the analysis of the High Performance Concrete (HPC) pavement sections constructed along the eastbound lanes of Interstate 90 near Tomah, Wisconsin. The test sections are the first specific HPC pavements designed and built in the State of Wisconsin and represent the current trends in building highway pavements with significantly longer service lives. Deflection data obtained with the WisDOT Falling Weight Deflectometer (FWD) was used to characterize the pavement materials within each section and to provide inputs for detailed mechanistic-empirical pavement analyses. The FWD data analysis indicated general uniformity within eachc onstructed section, in terms of thec oncrete slab elastic modulus and foundation support k-value. The doweled transverse contraction joints within each test section are providing adequate load transfer, with measure deflection load transfers in excess of 90% for all sections. The deflection load transfer measured across the longitudinal joint separating the driving lane and the tied-concrete shoulder was adequate within TS1 (90%) but significantly reduced within TS2 (35%). The Mechanistic Empirical Pavement Design Guide (MEPDG) software was used to provide 60-year predictions of pavement performance within each test section. The results indicate all sections should remain below a threshold value of 0.25 inches of transverse joint faulting throughout this period. Furthermore, no slab cracking is predicted within the HPC test sections 1 and 2; however, approximately 25% slab cracking is predicted within the control section (TS3). Thsi increased slab cracknig is above the threshold value of 15% slab cracking but below the terminal value of 50% slab cracking. The MEPDG software predicts 60-year IRI values above the threshold value of 180 inches per mile for all test sections. This result is predominantly due to predictions of high levels of joint spalling, which may be biasing the results.
Analysis of High Performance Concrete Pavement Sections Along I-90 Near Tomah, Wisconsin
J. A. Crovetti (Autor:in)
2010
45 pages
Report
Keine Angabe
Englisch
Highway Engineering , Construction Equipment, Materials, & Supplies , Adhesives & Sealants , High Performance Concrete (HPC) , Concrete pavement , Performance measures , Falling weight defectometers (FWD) , Finite Element Analyses (FEAs) , Mechanistic empirical design , I-90 corridor , Tomah (Wisconsin)
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