Laying. The block shall be slightly wetted before and during laying in the blocks shall be laid with mortar joints completely filled without any void left in the masonry. The thickness of the horizontal and vertical joints shall not exceed 10 mm. The 1/2, 1/3 and 2/3 blocks joints shall be used for breaking the joints, The face joints shall be raked to depth of 1 cm by raking tool during the progress of the work when the mortar is still green, so as to provide proper key for plaster or to facilitate pointing to be done later. Where plaster or pointing is not required the joints shall be struck flush and finished side by side.
Laying. The stone shall be laid by hand closely together. The stone shall be carefully bedded and tightly wedged with suitable spalls. The base of the stone shall alternate with the apex in all directions or as directed by the Engineer. The layer shall be proof rolled with a loaded scrapper or truck with a minimum axle load of 8 tonnes in the presence of the Engineer who shall approve of its stability before compaction.
Laying. All pipe, fittings, valves, and fire hydrants shall be carefully lowered into the trench in a manner as to prevent damage to pipe materials and protective coatings and linings. Under no circumstances shall materials be dropped or dumped into the trench. The pipe and fittings shall be inspected for defects prior to installation. All lumps, blisters and excess coating shall be removed from the xxxx and spigot end of each pipe, and the outside of the spigot and the inside of the xxxx shall be wire brushed and wiped clean and dry and free from debris and lubricants before the pipe is placed in the trench. Every precaution shall be taken to prevent foreign material from entering pipe while it is being installed. After placing a length of pipe in the trench, the spigot end shall be centered in the xxxx and the pipe forced home and brought to correct line and grade. The pipe shall be secured in place with bedding material tamped under it. Precautions shall be taken to prevent dirt from entering the joint space. When pipe laying is not in progress, the open ends of pipe shall be sealed with a sanitary watertight plug or sanitary other means approved by the District. If water is in the trench when work resumes, the seal shall remain in place until the trench is pumped completely dry. The cutting of pipe for inserting valves, fittings or closure pieces shall be done in a neat and workmanlike manner without damage to the remaining pipe, coating or cement mortar lining so as to leave a smooth end at right angles to the axis of the pipe. Pipe shall be laid with xxxx ends facing in the direction of the laying, unless otherwise approved by the District. No pipe shall be laid in water, or when, in the opinion of the District, trench conditions are unsuitable. Wherever it is necessary to deflect pipe from a straight line, the amount of deflection allowed shall not exceed one-half pipe manufacturers' recommendations for mechanical, restrained and push-on joints.
Laying. (i) All cast iron pipes and fittings shall be joined with best quality soft pig lead, which shall be free from impurities. In wet trenches joints shall be made from lead wool. Nothing extra shall be paid for lead wool joints. Depth of the pig lead and weight for joints shall be as given in this section above. · The spigot of pipe fittings shall be centered in the adjoining socket by caulking. Sufficiently turns of tarred xxxxxx will be given to leave unfilled depth of socket for depth of 45mm when the xxxxxx has been caulked tightly barrel and against the face of the socket. Molten pig lead shall than be poured to fill the remainder of the socket. The lead shall then be solidly caulked with suitable tools and hammer weighting not. · For lead wool joints the socket shall be caulked with xxxxxx xxxxxx, as explained above. The lead wool shall be inserted into the sockets and tightly caulked home skein with suitable tools and hammer of not less than 2 kg weight until joint is filled. Testing: All cast iron pipes for drainage shall be tested to a hydraulic test of 3- meter head. Test for straightness shall be same as for stoneware pipe. A test register shall be maintained which shall be signed and dated by the Concessionaire, and representative of the Independent Engineer.
Laying. (i) All cast iron pipes and fittings shall be joined with best quality soft pig lead (conforming to IS 279-1977) which shall be free from impurities.
Laying. No turf shall be laid until the soil preparation has been satisfactorily completed by being brought to an even tilth and firmness. Turves from the stack shall be wheeled to turf layers on planks laid closely side by side. Adequate timber planks shall be used to support operatives and xxxxxxx, and provide access. The turves shall be laid in consecutive rows with broken joints (stretcher bond), closely butted and to the correct levels. The turf shall be laid off planks working over turves previously laid. Where necessary, the turves shall be lightly and evenly firmed with wooden beaters, the bottom of the beaters being frequently scraped clean of accumulated soil or mud. A dressing of finely sifted topsoil shall be applied and well brushed into the joints. Any inequalities in finished levels owing to variation in turf thickness or uneven consolidation of soil shall be adjusted by raking and/or packing fine soil under the turf. A roller shall not be used. The finished levels of the turf shall conform to the levels indicated, allowing for final settlement. Turf edges and margins shall be laid with whole
Laying. The interlocking paver shall be laid dry, bedded and laid over and including 25mm thick and (compacted thickness) over sub base as specified here-in-before. The gap between paver blocks shall be filled with sand. Sides of paver blocks shall be grouted with PCC 1:2:4 type B0 to made straight line. The design, shape size and colour of PCC coloured interlocking paver shall be got approved from GE in writing before procurement/incorporation in the work.
Laying. Sub grade concrete or R.C.C. slab on which marble is to be laid shall be cleaned, wetted and mopped. The bedding for the marble shall be lime mortar 1:2 ( 1 lime: 2 coarse sand) or cement mortar 1:4 (1 cement : 4 coarse sand) as mentioned in the Bills of Quantity.
Laying. The risers or steps and skirting shall be set, in grey and white cement with an admixture to match the shade of stones, and with the line of slab at an average distance of 12 mm from the wall but not less than 10 mm. If necessary, the slabs shall be held in position, by temporary X.X. xxxxx at suitable intervals. The rear of the skirting or riser slab shall be packed with cement mortar 1:3 (1cement: 3 coarse sand). The fixing hooks shall be removed after the backing mortar is set. The joint shall be very fine (almost invisible).