BEJS
Bridge Expansion Joint
Test Case Study -- MO DOT Fruitland, MO
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Typical single-span, secondary
highway bridge. Two bridge abutment joints--one at each end. No mid-span joint. |
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8:00am Saw cutting along deteriorated concrete joint edges. |
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Chipping out deteriorated concrete along saw cut. | |||||||
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10:00am Adding steel dowels and additional reinforcing steel through new blockout. |
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Preparing the blockout by sandblasting the concrete and rebar. | |||||||
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Priming the blockout with EMPRIME from EMSEAL | |||||||
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11:00am Forming the joint gap. |
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Checking form width against concrete substrate temperature. | |||||||
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12:00pm Mixing the EMCRETE, elastomeric patching nosing material. |
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Placing the "self-leveling" EMCRETE nosing compound. | |||||||
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2:30pm Pulling the forms. |
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Solvent wiping the joint face to receive the new EMSEAL BEJS expansion joint seal. | |||||||
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Checking the expansion rate of a
small piece of BEJS foam to determine working time. (Hot day, so material stored in shade to increase working time). |
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3:30pm Mixing the BEJS epoxy adhesive. |
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Troweling the BEJS epoxy onto the joint face. | ||||||||
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Unwrapping the BEJS and installing it into the wet epoxy on the joint faces. | |||||||
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Applying the joining silicone to seal the butt joins. | |||||||
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Cleaning the silicone top surface with solvent to remove excess epoxy. | |||||||
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Injecting silicone sealant bands between the bellows and the epoxy-coated joint face. | ||||||||
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4:30pm | |||||||
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6:30am Next Day Taking traffic. Cars, vans... |
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...and semis. | ||||||||
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