Art. 590.01 Epoxy Crack Injection All bridge relief joints shall be filled with sufficient sealer compound so that the top of the seal is flush with the top of the finished deck or wearing surface. Any sealing compound that is not bonded to the relief joint wall or face 24 hours after placing shall be removed and the joint shall be cleaned and resealed.
588.04 Basis of Payment. This work will not be paid for as a separate item,
but shall be considered as included in the unit price bid for the major item of construction involved. SECTION 589. RESERVED SECTION 590. EPOXY CRACK INJECTION
590.01 Description. This work shall consist of injecting cracks in structural
concrete with an epoxy bonding compound, or as designated in the contract.
590.02 Materials. Materials shall be according to the following.
Item Article/Section
590.03 General. Only cracks or portions thereof that are 0.007 in. (0.2 mm) or
wider shall be injected. The areas for epoxy crack injection shall be prepared by removing all dust, debris, or disintegrated material from the crack by the use of oil-free compressed air and/or vacuuming. Any cracks holding oil or grease shall be chipped out to clean concrete. Horizontal and vertical cracks shall have suitable one-way injection ports installed every 6 to 18 in. (150 to 450 mm) or as required, depending on the width of crack, the horizontal or vertical location, and the dimensions of the member. The surface of cracks between the injection ports shall be sealed with a suitable sealing compound recommended by the supplier of the epoxy bonding compound. When the sealing compound is cured, mechanical pressure equipment shall be used to inject the epoxy bonding compound into the cracks. Injection shall begin at the bottom and progress upward when applicable. The injection pressure and epoxy bonding compound flow characteristic shall result in 90 percent penetration of the epoxy bonding compound. Injection shall continue until refusal, and without damage to the structural concrete. Pressure injection shall not exceed 500 psi (3450 kPa). When the epoxy bonding compound is cured, the injection ports and sealing compound shall be removed and the surface smoothed by stoning or grinding. Geocomposite Wall Drain Art. 591.03
590.04 Method of Measurement. This work will be measured for payment in
place in feet (meters).
590.05 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for EPOXY CRACK INJECTION. SECTION 591. GEOCOMPOSITE WALL DRAIN
591.01 Description. This work shall consist of furnishing and installing
geocomposite wall drain on the soil side of abutment walls, wing walls, retaining walls, and culvert sidewalls.
591.02 Materials. Materials shall be according to the following.
Item Article/Section
591.03 General. Geocomposite wall drain shall be constructed in horizontal
courses with the first course resting on the top of the footing. The geocomposite shall be in direct contact with the wall and secured with concrete nails not less than 2 in. (50 mm) long with approved washers not less than 9 sq in. (5800 sq mm) in area. The spacing of the concrete nails shall be as directed by the Engineer but shall not be more than 3 ft (1 m) apart, both horizontally and vertically. There shall be at least one horizontal row of nails in each course. Horizontal seams shall be formed by a 4 in. (100 mm) flap of geotextile extending from the upper course and lapping over the top of the lower course or by a 12 in. (300 mm) wide continuous strip of geotextile centered over the seam and securely fastened to the upper course with continuous 3 in. (75 mm) wide plastic tape. The overlapping flap or strip shall be fastened to the lower course intermittently as directed by the Engineer, but the spacing shall not exceed 2 ft (600 mm). Vertical splices shall be formed by a 4 in. (100 mm) flap of geotextile extending from one or the other abutting pieces or by a 12 in. (300 mm) wide continuous strip of geotextile centered over the splice. Vertical splice flaps or strips shall be continuously fastened to the geocomposite with continuous applications of contact adhesive or 3 in. (75 mm) wide plastic tape. The bottom, side, and top edges of the geocomposite shall be covered with a suitable cap formed by folding a 6 in. (150 mm) flap or a 12 in. (300 mm) wide strip of geotextile over the edge and securing it in place with a continuous application of contact adhesive or 3 in. (75 mm) wide plastic tape. All seams, splices, bottom caps, top caps, and end caps shall be constructed so that backfill material cannot enter the geocomposite during or after construction. Connection to pipe outlet systems shall be as shown on the plans. Outlet fittings shall be fastened to the wall drains as directed by the manufacturer and so that backfill materials cannot enter the system during or after construction. If necessary, to facilitate the rapid and complete flow of water from the wall drain into the pipe
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