REPAIR TO JOINT FILLING EPOXY ELASTOMERIC CONCRETE OF ORA PTT DISPERSAL TAXI LINKS FOR SOUTH LOOP AND NORTH LOOP AT AF STN JAISALMER

M&L for pouring of elastomeric compound on runway/dispersal/raxi track etc all as per the following specifications, complete all as specified & directed:- (a) Cutting/Chipping of existing cracked concrete/Bituminous surface not less than 100mm wide and 40mm deep with concrete cutter in proper alignment, removing all loose concrete/dust etc by air blower and carefully cleaning the surface to receive new material. (b) Appliying primer to old surfaces using pump sprayer or brush covering all the area as directed.make of primer RDL 942 or equivalent. The primer shall be allowed to dry before pouring the elastomeric compound. (c) Pouring of elastomeric compound mixed with all ingradient and pouring the mix in the affected area trowelled to acheive grooved or textured finish including all necessary forwork all as directed and specified. Note : (i) The rate shall be inclusive of providing masking tape at joints and formwork required if any at spalled joints edges. (ii) The quoted rate deemed to be inclusive of making good to disturbed joint filling around the area where material is applied. (iii) Removal of debris from the site as directed by Engineer-in-charge.

M&L for cutting existing loose patches/spalled edges/widening of existing cracks of concrete pavement in geometrical shapes to average depth of 20 to 25mm using diamond cutters operated with generator sets,cleaning the surface with air compressors and all as specified and directed.

M&L for applying Epoxy mortar with following specification up to depth of 20 to 25mm & including primer @ 0.45Kg/Sqm. Mixing ratio or ingradients of Epoxy Mortar:- 1. Araldite 250-100 parts by weight (Rasine). 2. Araldite 140-50 parts by weight (Hardner) 3. Quartz sand 10 No - 500 Parts. Note : (i) The rate shall be inclusive of providing masking tape at joints and formwork required if any at spalled joints edges (ii) The quoted rate deemed to be inclusive of making good to disturbed joint filling around the area where material is applied

M&L for racking out the existing sealing compound and back up rod of existing Expansion Joints by special tools like racker, cutting blades and machines, cleaning joints thoroughly by air compressor, making the joints dry, vaccum cleaned and making free of dust, dirt, oil, grease, vegetaion and other debris and applying two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes over closed cell medium density, cross linked polyethylene foam backup rod of minimum 30mm dia before pouring sealant for complete length of joint; finally filling joints with polyethitranbne joint sealant (10 to 12mm depth) over and including backup rod meeting the requirements of BS 5212, BS4254 and EN-141875-2003 with minimum movement accommodation factot MAF (+/-)30% and removal of debris from site complete all as specified and directed.

M&L for racking out the existing sealing compound and back up rod of existing Dummy/Contraction Joints by special tools like racker, cutting blades and machines, widening joints by 2mm by cutting joint with blades of appropriate size , making joints straight and smoothening edges of the joints, cleaning joints thoroughly by air compressor, making the joints dry, vaccum cleaned and making free of dust, dirt, oil, grease, vegetaion and other debris and applying two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes over closed cell medium density, cross linked polyethylene foam backup rod of minimum 8mm dia before pouring sealant for complete length of joint; finally filling joints with polyethitranbne joint sealant (10 to 12mm depth) over and including backup rod meeting the requirements of BS 5212, BS4254 and EN-141875-2003 with minimum movement accommodation factot MAF (+/-)30% and removal of debris from site complete all as specified and directed.

M&L for racking out the existing sealing compound and back up rod of existing Consruction Joints by special tools like racker, cutting blades and machines, widening joints by 2mm by cutting joint with blades of appropriate size , making joints straight and smoothening edges of the joints, cleaning joints thoroughly by air compressor, making the joints dry, vaccum cleaned and making free of dust, dirt, oil, grease, vegetaion and other debris and applying two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes over closed cell medium density, cross linked polyethylene foam backup rod of minimum 12mm dia before pouring sealant for complete length of joint; finally filling joints with polyethitranbne joint sealant (10 to 12mm depth) over backup rod meeting the requirements of BS 5212, BS4254 and EN-141875-2003 with minimum movement accommodation factot MAF (+/-)30% and removal of debris from site complete all as specified and directed.