712 - Bridge Rehabilitation, Concrete - Revision history

Clarkj25 at 20:35, 14 April 2026

2026-04-14T20:35:22Z

2026-04-14T20:33:40Z

Fiber Reinforced Polymers (FRP) Repairs

2026-04-14T20:31:25Z

Mixing, Placing, Finishing, and Curing Silica Fume Modified Concrete (SFMC) Overlays

2026-04-14T20:31:08Z

Mixing, Placing, Finishing, and Curing Silica Fume Modified Concrete (SFMC) Overlays

2026-04-14T20:28:42Z

Proof Testing

2026-04-14T20:26:55Z

Hydrodemolition Equipment

2026-01-29T22:48:05Z

2026-01-29T22:44:00Z

Repairing Cracks by Pressure Injection

2026-01-29T22:41:42Z

Fiber Reinforced Polymers (FRP) Repairs

2026-01-29T22:40:16Z

Repairing Cracks by Pressure Injection

← Older revision		Revision as of 20:33, 14 April 2026
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−	[[File:~~fig712~~.~~29.png~~\|800px\|center\|thumb\|'''Figure 712-16 ~~Application of Beam Flexural Strengthening~~''']]	+	[[File:Fiber Reinforced Polymer Repairs .jpg\|800px\|center\|thumb\|'''Figure 712-16 FRP on Precast Concrete “I” Beams for cover protection after a High Load Hit and LMC Repair''']]

← Older revision		Revision as of 20:31, 14 April 2026
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	Dry run and wet run checks should still be performed on overlays. However, they will differ from the dry run and wet run described in section 706. The dry run checks are to be completed at intervals sufficient to assure that the minimum and maximum thickness of overly is appropriate for the concrete mix selected for the project. Dry run intervals are to be sufficient to assure that the concrete depths are progressing as determined by the dry run and that adequate depth for the concrete mix selected has been achieved.		Dry run and wet run checks should still be performed on overlays. However, they will differ from the dry run and wet run described in section 706. The dry run checks are to be completed at intervals sufficient to assure that the minimum and maximum thickness of overly is appropriate for the concrete mix selected for the project. Dry run intervals are to be sufficient to assure that the concrete depths are progressing as determined by the dry run and that adequate depth for the concrete mix selected has been achieved.

−	[[~~File:~~File:SFMC Overlay.png\|800px\|thumb\|center\|'''Contractor Fogging the area over an SFMC Overlay to keep humidity up in environment around the pour''']]	+	[[File:SFMC Overlay.png\|800px\|thumb\|center\|'''Contractor Fogging the area over an SFMC Overlay to keep humidity up in environment around the pour''']]

← Older revision		Revision as of 20:31, 14 April 2026
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	Dry run and wet run checks should still be performed on overlays. However, they will differ from the dry run and wet run described in section 706. The dry run checks are to be completed at intervals sufficient to assure that the minimum and maximum thickness of overly is appropriate for the concrete mix selected for the project. Dry run intervals are to be sufficient to assure that the concrete depths are progressing as determined by the dry run and that adequate depth for the concrete mix selected has been achieved.		Dry run and wet run checks should still be performed on overlays. However, they will differ from the dry run and wet run described in section 706. The dry run checks are to be completed at intervals sufficient to assure that the minimum and maximum thickness of overly is appropriate for the concrete mix selected for the project. Dry run intervals are to be sufficient to assure that the concrete depths are progressing as determined by the dry run and that adequate depth for the concrete mix selected has been achieved.
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		+	[[File:File:SFMC Overlay.png\|800px\|thumb\|center\|'''Contractor Fogging the area over an SFMC Overlay to keep humidity up in environment around the pour''']]
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← Older revision		Revision as of 20:28, 14 April 2026
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	Proof testing must be done prior to any installation in the project and is performed by the Department. Contact Region Materials to set up the proof testing.		Proof testing must be done prior to any installation in the project and is performed by the Department. Contact Region Materials to set up the proof testing.
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		+	[[File:Proof Testing .jpg\|800px\|thumb\|center\|'''Proof Testing #11 Rebar''']]
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← Older revision		Revision as of 20:26, 14 April 2026
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	At any time after the initial calibration that the hydrodemolisher does not consistently remove the unsound concrete sufficiently, an additional calibration will need to take place. This is most often seen at a change in span or in the widened portions of a deck. The Department has the right to request a recalibration whenever there is concern regarding the results of production hydrodemolition.		At any time after the initial calibration that the hydrodemolisher does not consistently remove the unsound concrete sufficiently, an additional calibration will need to take place. This is most often seen at a change in span or in the widened portions of a deck. The Department has the right to request a recalibration whenever there is concern regarding the results of production hydrodemolition.
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		+	[[File:Hydrodemolition Equipment .jpg\|800px\|thumb\|center\|'''Hydrodemolition Equipment – Hydrodemo Head, Mini Excavator with Suction Hose, Vac Truck''']]
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@@ Line 728: / Line 728: @@
 Subsection 712.04.L.2 “Concrete, Silica Fume Modified” states that the unit price includes the cost of the required trial batch. This is intended to tell the Contractor that the Department will not make any payment for the 4 cubic yards of SFMC used in the trial batch. The subsection also states that the Department will not make quantity adjustments for additional trial batches either. Together these statements make it very clear that the only quantity of SFMC that will be paid for is the concrete used on the structure.
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 ==[[#MATERIALS|MATERIALS]]==

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-[[File:fig712.27.png|800px|center|thumb|'''Figure 712-15 Application of epoxy resin over cracks prior to injecting''']]
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-Figure 712-16: Application of Beam Flexural Strengthening
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 ===Safety===

← Older revision		Revision as of 22:40, 29 January 2026
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		+	[[File:fig712.27.png\|800px\|center\|thumb\|'''Figure 712-15 Application of epoxy resin over cracks prior to injecting''']]

−	~~Figure 712.27 Application of epoxy resin over cracks prior to injecting~~
−	~~Figure 712-15: Application of Surface Mounted Ports and Temporary Epoxy Sealer~~
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