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 was reconstructed in two halves, with Phase 1 completed 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 was completed on October 30, 2005.
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Date |
Activity
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Photos
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October 30 - Phase 2
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Opened Grove Street bridge to traffic
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Open traffic
ECC link slab in use
Completed Grove Street over I-94
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Completed ECC link slab
Repaired pier under link slab
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October 29 - Phase 2
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Completing hot mix asphalt (HMA) approach sidewalks and general site cleanup
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Spreading HMA
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Completed HMA approach sidewalk
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October 29 - Phase 2
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Load testing
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Loading individual spans
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Loading both adjacent spans
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October 16 - October 28
Phase 2
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Formed and placed concrete sidewalk, concrete barrier wall, metal hand railings, and bridge approach slabs
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Concrete sidewalk formwork
Concrete barrier formwork
Completed bridge end approach
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Preparing for bridge end approach
Concrete barrier formwork
Assembling metal handrails
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October 15 - Phase 2
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Pouring of ECC Link Slab
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Material testing and certification
Discharge of ECC from truck
Screeding ECC surface
Tyning driving surface
Cast ECC link slab
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Delivery of ECC Material
Flowable ECC Material
Steel troweling ECC surface
Tyned ECC/Concrete Interface
Applying curing compound
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September 23 October 14
Phase 2
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Completed demolition, stay-in-place formwork, installation of concrete deck reinforcing steel bars, and preparation of link slab formwork.
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Conventional expansion joint
Placing reinforcing steel
Link slab transition zone
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Stay-in-place formwork
Link slab location with rebar
Nearly complete reinforcing steel
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September 23 - Phase 1
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Opened new portion of Grove Street bridge to traffic and closed remaining old portion for rehabilitation
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Completed ECC Link Slab
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Completed ECC Link Slab
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September 19 - Phase 1
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Load testing
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Loading individual spans
Wireless data collection
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Side by side loading
ACE-MRL Researchers
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September 13 - September 20, Phase 1
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Formed and placed concrete sidewalk, concrete barrier wall, metal hand railings, and bridge approach slabs
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Sidewalk forming
Concrete barrier wall forming
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Sidewalk reinforcing bars
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September10
Phase 1 |
Pouring of ECC link slab.
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Prepared Link Slab
Placement of ECC
Placement of ECC
Screeding of Link Slab
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Arrival of Concrete Trucks
Placement of ECC
Self-Consolidating ECC
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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Completed Formwork
Installation of Rebar
Completion of Rebar
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Installation of Rebar
Link Slab Preparation
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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Cleaned Girders
Girder Preparation
New Shear Connectors
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Link Slab Location
Stay-in-Place Formwork
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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Completion of Demolition
Removal of Shear Studs
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Completion of Demolition
Steel Girders
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July 28 - August 1
Phase 1
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Night demolition of concrete bridge deck. |
Night Demolition
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Night Demolition
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July 26
Phase 1
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Removal of temporary bituminous asphalt riding surface on bridge deck. |
Removal of Asphalt Surface
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Removal of Asphalt Surface
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July 23
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ECC trial mixing at Clawson Concrete. |
Concrete Truck Mixing
Discharging ECC from Truck
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Self-Consolidating ECC
Screeding of ECC
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July 5
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Grove Street bridge before any construction activity.
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Grove Street Before
Grove Street Over I-94
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Joints Before Link Slab
Bridge Pier Under Link Slab
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