Scarifying Bridge Deck Sample Clauses
The 'Scarifying Bridge Deck' clause outlines the requirements and procedures for roughening or removing the surface layer of a bridge deck, typically in preparation for resurfacing or applying a new overlay. This process involves using specialized equipment to mechanically abrade the concrete surface, ensuring proper bonding of new materials and removing any deteriorated or loose concrete. By specifying the standards and methods for scarification, the clause ensures the longevity and structural integrity of the rehabilitated bridge deck, addressing issues of adhesion and surface preparation.
POPULAR SAMPLE Copied 1 times
Scarifying Bridge Deck. Removal of any asphalt wearing surface from the bridge deck and scarification of the concrete deck to remove the entire concrete surface of the deck to a uniform depth within ½” of the plan overlay thickness, but not less than ½” inch above the top mat of reinforcing steel. It will be the Contractor’s responsibility to determine amount of cover for the reinforcing steel. Use a pachometer or other approved device, as directed by Engineer, prior to scarification. Readings shall be read and recorded in the presence of the Engineer. Readings shall be recorded for each span at 1/5 points longitudinally and 1/3 points transversely. The cost for this work will be considered incidental to the cost of hydro-demolition of the bridge deck. The above top mat cover dimensions are an estimate based on the best available information. Calibrate scarifying equipment in order to avoid damaging the reinforcing steel in the bridge floor or the approach slab. If reinforcing bars or bridge drainage devices are pulled up or snagged during scarification operations, then cease work and consult with the Engineer to determine any necessary adjustments to the roto-milling operation. Remove and dispose of all concrete and asphalt, and thoroughly clean the scarified surface. In areas where reinforcing steel is located in the depth to be scarified, use another method with the Engineer’s approval.