Name of Work: CERTAIN REPAIR TO HARD STANDING AND OTHER ASSOCIATED WORK AT AF STN HALWARA
Sl. No.
Item Description
1
Demolition of cement concrete of any description and in any position not otherwise specifically provided for, & removal of rubbish out side MoD Land, complete all as specified and directed.
2
M&L for cement concrete type D-2 1:4:8 using 40mm graded stone aggregate as in foundations, filling and mass concrete, complete all as specified and directed.
3
M&L for ready mix concrete (RMC) M-25 (Using 20 mm gradeded stone aggregate) concrete including necessary form work, complete all as specified and directed.Note :- Construction joints, dummy joints (contraction Joint) and expansion joints shall be measured and paid seperately under respective items.
4
M&L for brooming to surfaces or making impressions of expanded metal while concrete is green, complete all as specified and directed.
5
M&L for forming 25mm thick expansion joints in concrete slab for full depth of concrete slab, joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vaccume cleaned and free of dirt, oil, vegetation and other debris. The joint then filled with pre-molded 25mm thick compressible polythylene closed cell type filler board as specified, thereafter application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant, placing of closed cell medium density, crossed linked polyethylene foam backup rod 30mm dia over filler board and top 20mm filed with polyurethane based sealant as per method specified by the manufacturer, complete all as specified and directed.
6
M&L for forming 10mm wide construction joints by cutting upto 2/3 depth of total thickness filled with polyurethane joint sealant compounds using mechanical means including 2 coats of primer and fixing approved quality of backup rod 12mm dia polyethylene rod in position as required complete as per manufacturers instructions using marking taps to avoid slippage on sides, complete all as specified and directed.
7
M&L for repair to concrete slab surface (Depressed portion / cracked portion) by cutting damaged/ spilled portion to required depth and removing useless / worthless all loose and foreign materials etc to a distance exceeding 500m but not exceeding 1000m. Cleaning the surface thoroughly with brushes and finaly with compressed air, filling and levelling the surface with surface with epoxy mortar after priming including formwork, complete all as specified and directed.
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