Quarterly Management Report on Research Progress - Illinois ...

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<strong>Quarterly</strong> Progress <strong>Report</strong> Research <strong>Quarterly</strong> Progress <strong>Report</strong> Ending MARCH 2012 Project Title: Bridge Decks: Mitigation of Cracking & Increased Durability Last Updated: 6/18/2012 <strong>Report</strong> Generated:6/27/2012 QPR Author Name: Paramita Mondal Telephone: 217-333-3069 Project Completed: 60% Percent Time Used to Date: 100 % TRP Chair Approved: 6/8/2012 Project Number: R27-88 Function Code: R27-88 Estimated Dates Fiscal Year: 2012 Project Status: On Schedule (green) Task Title Start Complete Progress this Quarter Task 1: Stage 1: Literature review; In-depth study, experimental tests on shrinkage of concrete mixes Task 2: Stage 2: Structural testing and modeling to assess influence of structural characteristics Completed 5/15/2010 6/15/2012 No No 1/16/2011 12/15/2012 No No Task 3: Stage 3: Develop design and construction recommendations 7/16/2011 5/15/2013 No No Task 4: <strong>Report</strong> and paper writing 5/16/2011 5/15/2013 No No Project Start Date: 5/1/2010 Original Project End Date: Number of Extentions: 0 Current Project End Date: 5/15/2013 Original Project Budget: $300000 Number of Budget Changes: 0 Current Project Budget: $334371 Total Funds Expended this Quarter: $0 Total Project Expenses to Date: $0 Total % Of Budget Spent To Date: 0% Project Description: The first stage will focus on HPC mix designs and measurement of shrinkage. Effects of cement type (type K, type G), SRAs and fly ash will be evaluated. Silica fume will be considered to confirm its negative impact. Fibers will be considered if time permits. The second stage will focus on exploring influence of superstructure on deck cracking. A laboratory model will be built to study the restraint and shrinkage. A FEM model will be developed and validated using the experimental results, and parametric study will be carried out. The third stage will aim to develop design and construction recommendations. Keywords: bridge, cracking, durability, mitigation Principal Investigator: Name: Paramita Mondal Organization / Address Telephone: 217-333-3069 Email: pmondal@illinois.edu UIUC-CEE 2114 Newmark Civil Engineering Laboratory 205 N. Mathews Ave. Urbana IL 61801-2352 Co-Investigator: Name: Douglas Foutch Organization / Address UIUC - CEE Telephone: 217-333-6359 Email: dfoutch@illinois.edu Co-Investigator: Name: Riyadh Hindi Organization / Address Saint Louis University Telephone: 314-977-8547 Email: rhindi@slu.edu Research Student Team Members: PhD Students: Piyush Chaunsali, Seungmin Lim; SLU student: Doug Richardson Technical Review Panel: Members Telephone Email Address Dan Tobias (Chair) 217-782-2912 Daniel.Tobias@illinois.gov 47 Page 1 of 2
<strong>Quarterly</strong> Progress <strong>Report</strong> Gary Welton 217-342-8241 gary.welton@illinois.gov David Greifzu 217-785-2923 David.Greifzu@illinois.gov Dan Brydl 217-492-4632 Dan.Brydl@dot.gov Hal Wakefield 217-492-4646 Hal.Wakefield@dot.gov Randy Riley 217-652-8875 pccman@ilacpa.com Doug Dirks 217-782-7208 Douglas.Kirks@illinois.gov Justan Mann 217-782-5283 Justan.Mann@illinois.gov Matt Mueller 217-782-4423 Matthew.Mueller@illinois.gov Meeting Dates - Minutes Available? 5/25/2010 - Yes 8/31/2010 - Yes 12/2/2010 - Yes 3/10/2011 - Yes 6/16/2011 - Yes 2/3/2012 - Yes Progress & Significant Results This Quarter: Mix design optimization is under progress to reduce shrinkage without using any admixture. Two new mixes have been proposed based on linear free shrinkage measurement following ASTM C157. Currently these mixes are tested for restrained shrinkage following ASTM C1581 (ring test). Effects of fly ash on expansion of concrete with Type K and Type G cements are still being studied. Expansion of concrete samples with fly ash and Type G or Type K is being measured following the method described in ASTM C 878 and it seems that fly ash increases expansion. A detailed study is being performed to understand the effect of fly ash on setting time and how this can play an important role in altering early age expansion. The structural testing of the first model concrete bridge deck section has been completed. No major crack was found in the model deck even after exposure to temperature variation. The work on modeling the deck using finite element is also under progress and the results match well with the measurement from structural model. Anticipated Work Next Quarter: The research team will continue to perform experiments to study the effect of fly ash addition on expansion of concrete with Type K or Type G component. Structural testing will include development of the second model using type K and further development of the finite element model. Project Impediments & Recommended Solutions: Deliverables and Implementation Strategy: Last Updated: 6/18/2012 Approved By TRP Chair: 6/8/2012 ICT Project Home 48 Page 2 of 2
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