GAIL (India) Limited

43showing the thickness of each brick course including joint shall be used. Bricks shall be laid with frogsupwards.c) The walls of a structure shall be carried up regularly and nearly at one level and no portion of the workshall be left more than 3 ft. below the rest of the work. Where this is not possible the work shall be rakedback according to bond (and not left toothed) at an angle not exceeding 45°.d) All iron fixtures pipes, outlets of water, holdfasts of doors and windows, etc., which are required to bebuilt in walls, shall be embedded in cement mortar or in cement concrete as specified, in their correctpositions as the work proceeds. Nothing extra shall be paid for such extra cement mortar or of the naturestated above.6.1.6. JOINTS:-Bricks shall be so laid that all joints are quite full of mortar. The thickness of the bed joints shall in nocase exceed 3/8”, unless otherwise specified. The face of joints shall be raked to a minimum depth of 0.5”by raking tool daily during the progress of work when the mortar is still green, so as to provide proper keyfor the plaster or pointing to be done. Where plastering or pointing is not required to be done, the jointsshall be struck flush and finished at the time of laying. The face of brick work shall be cleaned daily andall mortar droppings removed6.1.7 BRICK-IN-EDGE COPINGThe top course of all plinths, parapets, steps and tops of walls below R C.C. slabs or beams shall be laidwith brick on edge, unless otherwise specified Proper care shall be taken that the bricks forming the topcorners and ends of walls shall be properly radiate and keyed in to position.6.1.8. CURING:-Green Work shall be protected from rain by suitable covering Brick Masonry with cement or compositemortar shall be kept constantly moist on all faces for a minimum period of 7 (Seven) days. In case of fatlime mortar, curing shall commence two days after the laying of masonry and shall continue for 7 (seven)days6.1.9 SCAFFOLDING:Double scaffolding having two sets of vertical supports shall be provided The supports shall be sound andstrong Tied together with horizontal pieces over which the scaffolding planks shall be fixed. In buildingup to two stories, single scaffolding shall be allowed In this case, the inner end of the horizontalscaffolding pole shall rest in a hole provided in the header course only. Only one header or each pole shallbe left out. The holds left in masonry work for supporting the scaffoldings shall be filled and made good,before plastering. The Contractor shall be responsible for providing and maintaining sufficiently strongscaffolding so as to withstand all loads likely to come upon it.6.2 HALF BRICK AND THREE INCH THICK MASONRY:-6.2.1. The work shall be done exactly similar to the specification ‘BRICK WORK’ except that all courses shallbe laid with stretchers.6.2.2 Cement Mortar 1:4 (1 cement: 4 sand) shall be used unless otherwise specified in the description of theitem.6.2.3 The description of the item shall mention whether or not, reinforcement is to be provided, when the brickwork is to be reinforced, hoop iron band 1” x 1/16” (2.5 c.m. x 1.6. mm) shall be embedded in the cementmortar at every fourth course or as described in the description of the item. The hoop iron shall be hooked(given a doubel lap) with minimum of 9” hooks at all angles and junctions. At either end of the wall, 2” (5c.m.) lengths of the hoops shall be bent up or down so as to take a firm grip of the brick work. When hoopiron is not available. The Consultant may allow equivalent reinforcement in the form of mild steel.