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TX Bridge Bent Repairs Out for Bid

Wednesday, December 18, 2019

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The City of San Antonio is seeking contractors to perform bent repairs on the Ring Road Bridge located in San Antonio, Texas.

Bids are due Jan. 14.

Scope of Work

The project will require rehabilitation of five bridge bents on the Ring Road Bridge. The project includes testing and inspection, demolition of cracked concrete, post-tension grease trap replacement, protection of epoxy-coated tension anchors, cleaning of exposed reinforcing steel, packing new grease into new caps, injecting epoxy into exposed cracks, application of a polymer modified repair mortar to patch the removed concrete and painting the ends of the bent caps.

City of San Antonio

The City of San Antonio is seeking contractors to perform bent repairs on the Ring Road Bridge located in San Antonio, Texas.

Contractors will demolish and remove the existing skim coat while protecting the epoxy coatings on existing anchors for post-tensioned tendons. Following installation of new grease caps, the contractor will repair any damaged or missing epoxy coatings on the anchors.

A corrosion-inhibiting bonding agent will be applied to reinforcing steel and the entire substrate. The contractor will use an epoxy bonding agent and zinc-rich epoxy primer.

An elastomeric coating will be applied throughout the end of the repaired ends of the bents in a color to match the bent furthers to the west. The contractor will oversee application of a high-build water-based 100% acrylic, elastomeric waterproof coating.

Work will also include crack injection using either a general purpose structural concrete bonding injection resin with epoxy concrete bonding adhesive, or a low-viscosity epoxy with injection or fast-set gel.

The owner-approved coating manufacturers are BASF, Sika and Euclid.

Reported by Paint BidTracker, a construction reporting service devoted to identifying contracting opportunities for the coatings community. Visit us on Facebook!

   

Tagged categories: Bidding; Bridges; Contract awards; Jobs; NA; North America; Paint BidTracker; Program/Project Management

Comment from Chuck Nizzi, (12/18/2019, 12:29 PM)

Looks like the original design was not the wisest and even with post tensioning technology the design was "bent" on cracking like it did and possibly exposing the reinforcement to corrosion.Sounds like the repair work should be closely monitored to insure the work is done to "NASA specs" or corrosion in the cracks will reappear and be hidden from view.


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