Durable Link Slab for Jointless Bridge Decks
Based on Strain-Hardening Cementitious Composites
Construction Timeline
In cooperation with the Michigan Department of Transportation (MDOT), HNTB Engineering Consultants, Midwest Bridge Contractors, and Clawson Concrete Company, construction of a demonstration ECC link slab began in July, 2005. The southeastern Michigan project site is Grove Street over Interstate 94 (S02 of 81063) in Ypsilanti, approximatly 45 minutes outside of Detroit, Michigan. The bridge is being reconstructed in two halves, with Phase 1 nearing completion in late September. Through the cooperation of state transportation officials, industry consulting engineers and contractors, and ACE-MRL research personnel, this first infrastructure demonstration project of ECC material in the US is scheduled for completion in mid-November. Please follow along as the project nears completion. This site will be updated periodically with further developments and pictures as construction progresses.
More to follow! Please visit often!
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| Date |
Activity
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Photos
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September10
Phase 1 |
Pouring of ECC link slab.
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/linkslabpour1.jpg)
Prepared Link Slab
/linkslabpour3.jpg)
Placement of ECC
/linkslabpour5.jpg)
Placement of ECC
/linkslabpour7.jpg)
Screeding of Link Slab
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/linkslabpour2.jpg)
Arrival of Concrete Trucks
/linkslabpour4.jpg)
Placement of ECC
/linkslabpour6.jpg)
Self-Consolidating ECC
/linkslabpour8.jpg)
Finished Link Slab
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August 25 - September 6
Phase 1
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Completed stay-in-place formwork, installation of concrete deck reinforcing steel bars, and preparation of link slab formwork.
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/stayinplaceforms2.jpg)
Completed Formwork
/rebar2.jpg)
Installation of Rebar
/rebar3.jpg)
Completion of Rebar
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/rebar1.jpg)
Installation of Rebar
/linkslablocation2.jpg)
Link Slab Preparation
/linkslablocation3.jpg)
Link Slab Preparation
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August 4 - August 25
Phase 1
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Cleaning of steel girders, removal of old shear connectors, installation of stay-in-place formwork, and installation of new shear connectors.
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/girderprep1.jpg)
Cleaned Girders
/girderprep2.jpg)
Girder Preparation
/newshear.jpg)
New Shear Connectors
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/linkslablocation1.jpg)
Link Slab Location
/stayinplaceforms.jpg)
Stay-in-Place Formwork
/blasting.jpg)
Sandblasting Girders
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August 2
Phase 1
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Completion of concrete deck demolition and preparation of exisiting steel girders.
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/democomplete1.jpg)
Completion of Demolition
/democomplete3.jpg)
Removal of Shear Studs
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/democomplete2.jpg)
Completion of Demolition
/democomplete5.jpg)
Steel Girders
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July 28 - August 1
Phase 1
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Night demolition of concrete bridge deck. |
/nightdemo1.jpg)
Night Demolition
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/nightdemo2.jpg)
Night Demolition
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July 26
Phase 1
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Removal of temporary bituminous asphalt riding surface on bridge deck. |
/bitremoval1.jpg)
Removal of Asphalt Surface
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/bitremoval2.jpg)
Removal of Asphalt Surface
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July 23
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ECC trial mixing at Clawson Concrete. |
/trialmix1.jpg)
Concrete Truck Mixing
/trialmix3.jpg)
Discharging ECC from Truck
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/trialmix2.jpg)
Self-Consolidating ECC
/trialmix4.jpg)
Screeding of ECC
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July 5
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Grove Street bridge before any construction activity.
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/grovebefore.jpg)
Grove Street Before
/grovefar.jpg)
Grove Street Over I-94
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/grovejoint.jpg)
Joints Before Link Slab
/refclose.jpg)
Bridge Pier Under Link Slab
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