Specifications include, but are not limited to: GLASS REINFORCED PLASTIC (GRP) ULTRAVIOLET LIGHT (UV) CURED IN PLACE PIPE (CIPP) LINER: This work consists of rehabilitating existing drainage culverts by furnishing and installing Glass Reinforced thermosetting Plastic (GRP) Cured-in-Place Pipe (CIPP) liners using Ultraviolet (UV) cure methods.; A. Tube Liner: Tube liner will consist of at least two separate tubes made of corrosion resistant (E-CR or equivalent) glass fibers according to ASTM D578 and ASTM F2019. Provide flexible liner tubing that exhibits the following characteristics.; • Constructed to withstand pulling and installation forces.; • Fabricated to a size that when installed, conforms to the internal circumference and length the of host pipe.; • Includes an impermeable inner and outer foil layer to contain resin migration and contamination.; • Do not include any material in the tube that may cause delamination in the CIPP.; • After installation the wall color of the interior pipe surface of CIPP is a light reflective color.; • Maximum cured thickness of liner not to exceed ½ inch for host pipes of 48” diameter and less.; B. Resin: Resins will meet the requirements of ASTM F2019, Section 5 for UVlight cured.; C. Slide Foil: A continuous heavy gauge plastic sheet for the purpose of covering the lower portion of the host pipe, protecting the liner during the pull in process.; CLOSED-CIRCUIT TELEVISION (CCTV) CAMERA: The CCTV camera will be mounted on a crawler. The crawler will be capable of traveling the entire length of the pipe culvert. If unable to travel through the pipe culvert due to an obstacle or large void, then the CCTV camera will be run from both ends of the pipe culvert as far as possible.; The CCTV camera will travel through the pipe culvert at a speed not exceeding 30 feet per minute.; Pipe culverts may need to be dewatered to allow for CCTV inspection.; The CCTV camera will be equipped with an accurate working footage counter that shows accurate distances on the video recordings.; The CCTV camera will have the ability to pan and tilt. Lighting for the CCTV camera will be suitable to allow a clear picture of the entire periphery of the pipe. The CCTV monitor and other components of the CCTV system will be capable of producing a clear color picture/CCTV image.; CONSTRUCTION REQUIREMENTS: Field verify pipe inside diameter(s) throughout the pipe, length(s), alignment, material and condition of the host pipe prior to ordering liner material and construction. Handle and store all liner material to ensure that the material is not torn, cut, exposed to direct sunlight or otherwise damaged.; The host pipe will be thoroughly cleaned using a high-pressure water jet or hydromechanical methods. The cleaning method will produce a clean, sound surface that demonstrates no evidence of loose material, debris or contaminates. The host pipe will be cleaned just prior to insertion of the CIPP liner. The Contractor will implement appropriate sediment control measures prior to cleaning in order to prevent discharges from the project boundaries to comply with the Storm Water Permit.; Material removed from the pipe culverts will become the property of the Contractor for disposal.; Host pipe inspection will be completed with a CCTV camera. A DVD recording (or other Engineer approved method) of the inspection will be provided to the Engineer. The inspection will determine the suitability of the liner for the host pipe including such items as the horizontal and vertical alignments, location of gaps in the joints and pipe damage. The Engineer will be notified if any pipe sections are impassible, or the pipe cannot be lined.; Any intrusions into the pipe will be cut or ground off flush with the host pipe interior wall before installing the liner. Cut off existing pipe tie bolts flush with the nut or as per the manufacturer’s recommendation, if manufacturer’s recommendations are more stringent.; Control groundwater infiltration that will interfere with installation of the CIPP liner. Dewatering may be necessary. Host pipe will be in a dry condition as prescribed by the CIPP liner manufacturer.; Prior to inserting the CIPP liner, a slide foil protector will be pulled into the host pipe to protect the CIPP liner from damage, during the pull in process.; Installation of the liner into the host pipe will be in accordance with ASTM F2019.; CCTV camera will be located on the ultraviolet light assembly to view that the liner is properly inflated and identify any liner problems before curing begins.
