REPAIR AND MAINT OF PQC SLAB AND ASSOCIATED WORKS IN TAXI TRACK LINKS TARMAC AND DISPERSAL OF RUNWAY UNDER GE AF TECH AREA AGRA

Amount

M&L for chipping/cutting of crcked/brocken edges of cement concrete pavement by cutting rectangular, sectios by diamond cutters, removing loose particle, unsound material and cleaning the surface by the air compressor and removal of demolished materials/ debris to a distance out side of AF Station and appplying one tack coat of primer of epoxy and there after at an interval of 30 to 45 minutes pits shall be filled with the epoxy mortar consisting of the following ratio / composition complete all as specified or all as per manufacturers instructions :-. (a) Epoxy resin primer :- (i) Epoxy resin (Araldite) Gy-250 : 100 Part each by weight. (ii) Aradur 140 : 50 part each by weight (b) Epoxy mortar :- (i) Aradur 140 : 50 part each by Weight (ii) Araldite of Gy 250 : 100 Part each by weight. (iii) Silica sand M-12 grade : 600 Part each by weight..

Demolition of un-reinforced cement concrete of any description and in any position not otherwise specifically provided for complete all as specified and as directed

Removing demolished material of concrete to a distance of 40 to 42 km including loading, unloading and stacking at the destination complete all as specified and as directed. Note:The necessary permission for dumping the excavated soil/ demolished materials from AFS Agra shall be taken by the contractor /bidder from the respective Municipal Corporation / Nagar Panchayat /Gram Panchayat /Nagar Nigam / Development Authority etc. as the case may be. The quoted rates shall deemed to be included for the charges of disposal as decided by the above agency. Nothing extra shall be paid to the contractor for the same.

M & L for Dry lean concrete (DLC) of average thickness 150mm, M15 type B1 with minimum cement content of 250 kg per cum using 20mm graded stone aggregate or as per design mix, spread, rolled and cosolidated to required gradient and camber complete using necessary machenical sensor paver, tandem vibratory roller of capacity exceeding 8 tonne but n.exc 12 tonne capacity complete all as specified and as directed. Note:- (a) No price adjustment shall be applicable if excces quantity of cement is used than the minimum is required as per approved mix design in the execution of work under this item. (b):- DLC shall be as per MORTH specification as detailed in particular specification

Supply and laying dry clean sand spreading, leveling in layers 10mm thick consolidated complete all as specified and directed. Note: Sand for filling shall 1.18mm single size and sand shall pass 100% through 2.36mm sieve and shall be 100% retain on 600 micron sieve

M & L for Polythene film (transparent colour) in single layer of 400 micron thickness, virgin quality as per ASTM D2103/IS 2508 laid over sand layer with side and end overlapping not less than 150mm complete all as specified and as directed. Note:- (a) Measurement shall be taken for net area and unit rate quoted shall deemed to include for over lapping. (b) Sand layer will be measured and paid separately under relevant item of this schedule

M&L for Pavment Quality cement concrete (PQC) work in pavemnt of flexural strength 44 kg/sqcm (lower control limit-LCL) in field using minimum 400kg of cement per cubic metre or as per design mix, mixed with and including triangular/ Non circular synthetic polyster fibre reinforcement @ 0.25% by weigth of cement, spread and compacted by using slip form paver, thickness of concrete 200mm to 330mm as per site requirement all as specified including necessary form work, finishing by brooming / belting, curing etc complete all as specified and directed. Note:- (a) Construction joints / dummy joints and expansion joints shall be measured and paid separately under respective items here in after . (b) No price adjustment shall be applicable if excess quantity of cement than the minimum is used / approved based on mix design in the execution of work under this item. (d) Cost of admixtures fibers to maintain as required by design mix is deemed to be included in the quoted rate (Triangular/ Non circular synthetic polyster fibre reinforcement shall be measured and paid separately as supply only under relevant item herein after)

Supply only polyster non circular/ trangular synthetic fibers 6/12mm long with circum circle diameter 30-35 micron designed for melting point 240-260 degree celcius and having specific gravity of 1.34 to 1.4 recon complete all as specified and as directed.

M & L for forming 25 mm wide expansion joint filled with compressible synthetic filler board for complete depth of joint, i.e. for the 330 mm thickness of slab, provision of closed cell backup rod 30 mm dia, filled with polyurethane sealent (Min depth of Sealent above backup rod shall be of 12 mm) complying with BS 5212, BS 4254, and EN 41875-2003, priming the sides min MAF + 30% with ten years performance guarantee and applying masking tape on edge of joint to prevent accidental spillage of Sealent on top surface to give neat finish to sealent and removing the masking tape after sealent is applied by mechanical means all as specified and as directed.. Note : (a) The make of polyethylene rod shall be of brand " DURA board HD 100" manufactured by M/S Supreme Industries Ltd or equivalent of makes listed here in after (b) The polyethylene rod shall be of desired diameter having minimum density of 22 Kg/Cum and compression strength of 0.40 Kg /Sqm 25% greater than the joint width of white colour (c) Primer to be used before sealant filling (d) Edge shall be bevelled and jointed cut within 24 hours using diamond bit cutters of Bosch or equivalent used for cutting green concrete.

M & L for forming contraction joint(Dummy joint) for 330 mm thick slab, 1/3 of depth of slab and top 27 mm , 10 mm wide to receive PU and remaining 3 mm wide (using diamond cutter) Providing polythene backup rod 12 mm dia and sealed with polyurethane sealant (Min depth of sealant 12 mm) comblying with BS 5212, BS 4254, and EN 41875-2003, priming the sides min MAF + 30% with ten years performance guarantee and applying masking tape on edge of joint to prevent accidental spillage of Sealent on top surface to give neat finish to sealent and removing the masking tape after sealent is applied by mechanical means all as specified and as directed. Note:- (a) The make of polyethylene rod shall be of brand " DURA board HD 100" manufactured by M/S Supreme Industries Ltd or equivalent of makes listed here-in- after. (b) The polyethylene rod shall be of desired diameter having minimum density of 22kg/cum and compression strength of 0.40kg/sqm 25% greater than the joint width, of white colour (c) Primer to be used before sealant filling ( d) Edge shall be bevelled and jointed cut within 24 hours using diamond bit cutters of Bosch or equivalent used for cutting green concrete. The contraction/ Dummy joint Ist cut is to be done after 24 hours of casting. Final cut withing 72 hours of casting. Blade of cutting to be replaced after every 32 meter of cut complete as as specified.

JEE JEE BUILDERS

Rakesh Kumar

deva engineers

R K SINGH AND CO

M/S Vindhya Infraventures

M/S SINGH ELECTRIC CO