Jointing. The socket and spigot ends of the pipes shall be brushed and cleaned. The chamfered surface and the end of the spigot shall have to be coated with a suitable lubricant recommended by the manufacturer of the pipes. Oil, petroleum bound oils, grease or other material which may damage the rubber gasket shall not be used as lubricant. The rubber gasket shall be inserted into the cleaned groove of the socket. It has to be checked for correct positioning. The two pipes shall be aligned properly in the pipe trench and the spigot end shall be pushed axially into the socket either manually or with a suitable tool specially designed for the assembly of pipes and as recommended by the manufacturer. The spigot has to be inserted up to the insertion xxxx on the pipe spigot. Deflection of the Pipe at the Joints Deflection of the pipe, if any, shall be made only after the lengths have fully been assembled. The deflection shall not exceed 75 % of the values recommended by the pipe manufacturer. Anchoring of the Pipeline Thrust blocks shall be provided at each bend, tee, taper, end piece to prevent undue movements of the pipeline under pressure. They shall be constructed as per design of the Employer’s Representative according to the highest pressure during operation or testing of the pipes, the safe bearing pressure of the surrounding soil and the friction coefficient of the soil. This item shall be separately payable as per the provisions under BOQ. Measurement and Payment The net length of pipes as laid or fixed shall be measured in running meters correct to a cm including the length of specials. The portion of the pipe at the joints (inside the joints) shall not be included in the length of pipe work. Payment for supply and laying, jointing shall be on length basis as measured above, and as stated below Thrust, Anti-floatation and Anchor Blocks The Contractor shall construct thrust, anti-floatation and anchor blocks, as per the enclosed drawing or as and where directed by the Employer’s Representative as an acceptable means of pipe restraint. Plain concrete of Class M 15 shall be used for such blocks.
Jointing. Where it is necessary to break out or connect to an existing sewer during construction, only new pipe having the same inside diameter will be used in reconnecting the sewer. Where joints must be made between pipes with a mismatched wall thickness, the contractor shall use flexible gasketed coupling, adapter, or coupling-adapter to make a watertight joint.
Jointing. Soil waste vent and rainwater pipes shall be jointed with refined pig lead conforming to IS 27-1977. A sufficient skein or jute rope shall be caulked to leave a minimum space for the pig lead as given in PWD Specifications /CPWD Specifications to pour in. After pouring the lead shall be caulked in the joint with request caulking tool and hammer. All surplus lead shall be cut and joint left 460 with rim of the socket neatly.
Jointing. After setting out the pipes the collar shall be centered over the joint and filled in with tarred xxxxxx, so that sufficient space is left on either side of the collar to receive the mortar. The space shall then be filled with cement mortar (1 cement: 2 fine sand) and caulked by means of proper tools. All joints shall be finished at an angle of 45 degrees to the longitudinal axis of the pipe on both sides of the collars neatly.
Jointing. Jointing and fixing for polythene pipes shall be made as per manufacturer’s specifications but generally by means of butt welding or detachable nuts or flanged joints or screwed joints. The type of joint shall be used as per the site conditions. The ultimate finish of pipe shall be complete as directed by the Independent Engineer.
Jointing. The smaller sizes (½ to 2) shall be available with couplings or fusion outlets whereas larger sizes (3, 4, 6, and 8) shall be equipped with fusion outlets only. Butt fusion fittings shall comply with ASTM D3261; socket type fittings shall comply with ASTM F1924.
Jointing. 3.1 Jointing equipment shall be provided on the Cable Ship, together with trained and qualified personnel, to enable it to perform jointing on all cable types used in the Owner's System. Such jointing equipment shall employ Universal Jointing (UJ) technology and subject to the agreement of the Owner regarding the Covered System, Millennia Jointing (MJ) technology. Sufficient sets (in no case no fewer than two sets) of jointing equipment shall be provided on board the Cable Ship to ensure 100% availability at sea.
Jointing. The face of a construction joint shall have all laitance removed and the aggregate exposed prior to the placing of fresh concrete. The laitance shall wherever practicable be removed by spraying the concrete surface with water under pressure and brushing whilst the concrete is still green. Where the laitance cannot be removed whilst the concrete is green, the whole of the concrete surface forming part of the joint shall be hacked to expose the aggregate. Where aggregate is damaged during hacking, it shall be removed from the concrete face by further hacking. All loose matter shall be removed and the exposed surface thoroughly cleaned by wire brushing, and washing down, and the surface to which fresh concrete is applied shall be clean and damp. Expansion joints : Expansion joints are defined as joints intended to accommodate relative movement between adjoining parts of a structure special provision being made where necessary for maintaining the water tightness of the joint.
Jointing. The surface of set concrete shall not be disturbed and concrete shall be placed against the dry finished surface.
Jointing. Make joints to conceal shrinkage; miter exterior corners; cope interior corners, miter or scarf end-to-end joints; install trim pieces as long as possible, jointing only where solid support is obtained. Make no joints closer than 4 feet to corners.
