IMPROVEMENT OF HARDSTANDING AND MISC WORKS TO AIR DISPERSAL AREA AND ADDITION ALTERATION TO 747 SQN OFFICERS PANTRY AT CGAE KOCHI

M & L Racking out of old existing sealant compound and back up rod of the existing Dummy joints by special tools like cutting blades/machines, widening of joints by 2 mm by using joint cutting blades of appropriate size straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil vegetation and other debris Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before pacing the backup rod and pouring the sealant. Thereafter filled with closed cell, medium density, cross linked polyethylene foam backup rod of 8 mm dia fo complete length of the joint, over it to be filled with polyurethane joint sealant meeting the requirements mentioned in BS-5212, BS 4254 and EN-141875- 2003 with minimum movement accommodation factor (MAF) of+/- 30% complete all as specified and directed by Engineer-in-Charge.

M & L Racking out of old existing sealant compound and back up rod of the existing construction joints by special tools like cutting blades/machines, widening of joints by 2 mm by using joint cutting blades of appropriate size straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil vegetation and other debris . Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before pouring the sealant Thereafter filled with closed cell medium density, cross linked polyethylene foam backup rod of 12 mm dia for complete length of the joint, over it to be filled with polyurethane joint sealant meeting the requirements mentioned in BS-5212 , BS 4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of+/- 30% complete all as specified and directed by Engineer-in-Charge.

M & L Racking out of old existing sealant compound, back up rod and filler board of the existing expansion joints by specia tools like racker/cutting blades/machines , widening of joints by 2 mm by using joint cutting blades of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the filler board and pouring the sealant Thereafter filled with pre-molded 25 mm thick compressible polyethylene closed cell type filler board as specified , over it filled with closed cell medium density, cross linked polyethylene foam backup rod of 30 mm dia for complete length of the joint. Finally filled with polyurethane joint sealant meeting the requirements mentioned in BS-5212, BS 4254 and EN-141875-2003 with minimum movement accommodation factor MAF of+/- 30% complete all as specified and directed by Engineer-in-Charge.

Preparing and cleaning of broken edges of concrete pavement joints of any type and shape free from loose particles, grease, oil, demolding agents etc., cutting and chiseling the existing damaged portion of edges of joints to provide a regular prismatic cavity as directed and cleaning by using blower etc and washed with acid solutions if required and applying primer coat of epoxy ( 100 parts of epoxy resin with 50 parts of epoxy hardner by weight proportion) and filling the cut portion with epoxy mortar of Make: Huntsman (with 100 parts of epoxy resin, araldite with 50 parts of epoxy hardner, Aradur mixed with 800 parts of quartz sand by weight) including provision of temporary wooden strips or metal strips as formwork to edges of expansion/contraction/dummy joints and trowelling the mixture to level with the adjoining surface all as per manufacturers instructions complete all as specified. .

Demolition of brick work or stone masonary built in cement mortar including all quoins, arches, pillars etc.complete all as specified and directed

M&L for precast Solid Block Masonry type 1:3:6 type C1 (20 mm Aggregate) set in cement mortar 1:6 all as specified and as directed by engineer in charge

M & L for precast cement concrete solid building blocks or slabs 10cm thick (with plain or interlocking joints as directed)1:3:6 type C1,setting in CM 1:6 mortar,complete, in walls

Taking down cement plaster alongwith tiles on brick or stone wall surfaces including raking out joints, hacking for key and scrubbing down with water complete all as specified and directed by Engr-in-charge.

M&L for rendering 15mm thick in cement mortar 1:4 on other than fare face of brick work or concrete surfaces and finishing the surface even & smooth without using extra cement on any height complete all as specified and directed by Engr-in-charge.

M&L for applying two coat of exterior Acrylic emulsion paint (100% acrylic having VOC less tan 50gm/ltrand UV resistant as per IS 15489;2004) akali & fungal resitantance exterior paint of approved colour and shade over one coat of primer and 1 to 2mm thick putty punning including preparation of new plastered surface complete all as specified and as directed by Engineer-in-charge. Make-Asian (Apex Ultima) paints/Berger (Whether coat long life) including necessary scaffolding .