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  • SHRP 2 (S04(A) Roadway Information Database Development and Technical Coordination and Quality Assurance of the Mobile Data Collection Project (S04B)
    Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved SHRP 2 S04 A Roadway Information Database Development and Technical Coordination and Quality Assurance of the Mobile Data Collection Project S04B Researcher s Principal investigators Omar Smadi 515 294 7110 smadi iastate edu Iowa State University Co principal investigator Basak Aldemir Bektas 515 294 4033 basak iastate edu Project status In progress Start date 04 28 10 End date 02 28 15 Publications Tech transfer summary Roadway Information Database Development and Technical Coordination and Quality Assurance of the Mobile Data Collection Project 907 90 kb pdf May 2014 Sponsor s partner s Sponsor s Second Strategic Highway Research Program SHRP 2 About the research Abstract The goal of the research project S04A is to design build and populate a Roadway Information Database with data from the mobile data collection project S04B and other existing roadway data from government public and private sources The database should link the roadway data to the Naturalistic Driving Study data S07 to facilitate safety analysis The successful completion of S04A is crucial to achieve the

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-333008524 (2015-11-09)
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  • Development of a Structural Health Monitoring System to Evaluate Structural Capacity and Estimate Remaining Service Life for Bridges
    8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Development of a Structural Health Monitoring System to Evaluate Structural Capacity and Estimate Remaining Service Life for Bridges Researcher s Principal investigators Brent Phares 515 294 5879 bphares iastate edu Iowa State University Co principal investigators Nick Burdine 515 294 3449 bird iastate edu Yaohua Deng 515 294 2882 jimdeng iastate edu Project status In progress Start date 03 01 10 End date 06 30 17 Sponsor s partner s Sponsor s Federal Highway Administration Transportation Pooled Fund Iowa Department of Transportation About the research Abstract The ultimate objective of this project is to integrate a damage detection algorithm capable of evaluating a bridge s structural capacity and estimating remaining service life into a structural health monitoring SHM system In the past decade Los Alamos National Laboratories has evaluated six non destructive damage detection algorithms in terms of their ability to detect and locate damage on bridges While significant at the time the state of the art has evolved such that damage cannot only be detected and located it can also be quantified Although numerous damage detection algorithms exist to detect

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-2625190 (2015-11-09)
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  • Performance of Lightweight Foam Concrete Fill and Post-Grouted Drilled Shafts in Broadway Viaduct Replacement
    6979 tjwipf iastate edu Project status In progress Start date 03 01 10 End date 12 31 12 Sponsor s partner s Sponsor s Federal Highway Administration Iowa Department of Transportation About the research Abstract Due to quality control issues or soft toe conditions the end bearing capacity of drilled shafts is often not mobilized before service load displacement limits are realized Shaft capacity is therefore limited as it is developed primarily through mobilization of side frictional resistance at relatively small displacements It has been estimated that the end bearing component in cohesionless soils can be as great as 20 times the resistance available due to side friction To take advantage of such potential high end bearing capacities in soft toe conditions post grouting of shaft tips is increasing in popularity In the existing Broadway viaduct replacement project initial load testing has been completed on post grouted drilled shafts that were constructed using the tube sleeve tube a manchette approach However the increase in shaft capacity did not meet expectations and questions remain as to the size and integrity of the grout bulb and therefore the size of the contact area that should be used in analysis and design It is our understanding that it has been suggested that the tube a manchette grouting technique be replaced with a flat jacking approach for which the distribution and contact area of the grout will be known To date there remain questions regarding the effectiveness of this technique Current plans for replacing the Broadway viaduct also involve the replacement of the existing cellular abutments with slabs on LFCF material contained within mechanically stabilized earth MSE walls Because this is the first such use of LFCF in a bridge project in Iowa it will be highly beneficial to assess and document the performance

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-760219484 (2015-11-09)
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  • Development of Sustainable Concrete Pavements: Manual of Practice
    administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Development of Sustainable Concrete Pavements Manual of Practice Researcher s Principal investigators Peter Taylor 515 294 9333 ptaylor iastate edu Co principal investigator Tom Van Dam Applied Pavement Techology Project status

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=-176962114 (2015-11-09)
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  • Connection Details and Field Implementation of UHPC Piles - Phase II
    maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Connection Details and Field Implementation of UHPC Piles Phase II Researcher s Principal investigators Sri Sritharan 515 294 5238

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1191832271 (2015-11-09)
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  • Development of Stormwater Quality BMP Specifications
    principal investigator Research by sponsor Research by keyword Project pages maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Development of Stormwater Quality BMP Specifications Researcher s Principal

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=1595260662 (2015-11-09)
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  • Investigation of Deterioration of Joints in Concrete Pavements
    maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved Investigation of Deterioration of Joints in Concrete Pavements Researcher s Principal investigators Peter Taylor 515 294 9333 ptaylor iastate edu Project status In progress Start date 11 01 09 End date 12 31 15 Sponsor s partner s Sponsor s Federal Highway Administration Transportation Pooled Fund TPF 5 224 About the research Abstract Premature deterioration of concrete at the joints in concrete pavements and parking lots has been reported across the northern states Not all roadways are distressed but the problem is common enough to cause some local authorities to reconsider the use of concrete in their pavements A number of potential causes have been investigated while the details of some others still warrant investigation The research includes the following Investigate the possibility of a critical pore size in concrete paste similar to that observed in aggregates Continue to investigate water movement through the pore system and air voids

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=826700517 (2015-11-09)
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  • A Demonstration Project for the Illinois Tollway Utilizing Post-Consumer Asphalt Roofing Shingles
    Research by keyword Project pages maintained by PI Search research CTRE is an Iowa State University center administered by the Institute for Transportation Address 2711 S Loop Drive Suite 4700 Ames IA 50010 8664 Phone 515 294 8103 FAX 515 294 0467 Website www ctre iastate edu Copyright 1996 2009 Iowa State University All rights reserved A Demonstration Project for the Illinois Tollway Utilizing Post Consumer Asphalt Roofing Shingles Researcher

    Original URL path: http://www.ctre.iastate.edu/research/detail.cfm?projectID=619848798 (2015-11-09)
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