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地下grp管道施工方案(專業(yè)版)

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【正文】 direct sunlight, and should be stored in a dry area and less than 65% humidity in order to avoid surface condensation when used in warmer conditions outside. Lamination on the pipe jointDetails see attachment A: Field Butt amp。 wrap joint laminationACWDGAANA4”Butt amp。 Portable water station can be used for eyewash.Wear resistant gloves such as: polyvinyl alcohol, butyl rubber, nitrile or neoprene. wear normal work clothing covering arms and legs. Hazard OF MATERIALS:All chemical materials must be used carefully with PPE. RESIN: Cause severe eye and skin irritation. Aspiration of material into the lungs can cause chemical pneumonitis, and other lung injury.ACCELERATOR: Do not breathe vapours and avoid contact with skin. It can cause lung damage if swallowed and cause cancer. Flammable.CATALYST: Risk of explosion by shock, friction, fire or other sources of ignition, may cause fire, Harmful if swallowed, Caused burns. Keep away from reducing agents, acids, alkalies and heavy metal pounds. Do not mix with peroxideaccelerators or reducing agents. Use only stainless steel 316, PVC, polyethylene or glasslined equipment.Mat amp。 Wrap Joint Procedure Page 8 to 11 LAMINATION ON THE PIPE JOINT of and attachment B: Installation and Handling Instructions For Rigid Joint Pipe Page 5 to 6.1 Enough catalysted resin should be prepared for about 20 –30 minutes gel time and thorough mixing it.2 Spread a thin layer of catalysted resin directly on the surfaces of the pipe joint laminating area.3 Place of chopped strand mat on the surface of wet out area smoothly and wet it out with the paint wooly roller.4 Continue building by alternating chopped strand mat and woven roving and plete wetting out each one before applying the next ply. No more than 5 plies in one layer. Covered with chopped strand mat.The paint roller roll out over the plies to release big air cavities and any excessive resin. Avoid air getting into the laminate by using steel grooved roller slightly pressed to remove out the air bubbles. The angle of groove roller shall be changed time to time in order to remove the air bubbles in all directions. Keeping in consideration that very limited time has left for the resin to start getting gel, make sure all air bubbles have been taken out prior to start the plies to bee hard. Stop rolling as soon as the resin begin to gel. 5 Continue this procedure until all the sections of the first layer been applied. Make sure that each section overlap with the others at least 5 cm. Let this layer layup cure and cool until it is fortable to touch with the bare hand.Continue using the same procedures with the remaining layers as attachment C: Field lamination( process sheet). Make sure that the last plies of the total layup are chopped strand mat.CAUTION :1 Any kind of movement of pipe section could reduce the bond strength of the initial layup plies have not cured. While the jointing is under progress, the pipes must be restrained before moving.2 Remove the layup if not properly bonded to the pipe, and wash the area with solvent and not to run solvent into uncured. Before applying the layup on this area, insure all solvent has pletely evaporated. Never allow spilled chemical on the pipe surface. This may cause damage to the pipe.3 Each joint lamination team should be formed by at least two workers, t
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