Western Coalfields Limited Tender

Granular Sub-base with Well Graded Material (CBR30 or more) (Table:- 400-1 & Table 400-2) Construction of granular sub-base by providing well graded material like natural sand crushed gravel or crushed stone having CBR 30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. Plant Mix Method For Grading-III Material.

Dry Lean Cement Concrete Sub- baseConstruction of dry lean cement concrete Subbase over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, cement content not to be less than 150 kg/ cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, laid with a paver with electronic sensor, compacting with 8- 10 tonnes vibratory roller, finishing and curing as per clause 601 of specification complete in all respect.

Cement Concrete Pavement Construction of un-reinforced, dowel jointed, plain cement concrete pavement M-40 grade concrete over a prepared sub base with cement , coarse and fine aggregate conforming to IS 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, admixtures as approved, curing compound, finishing to lines and grades as per drawing as per IRC 15 2011 and as per relevant clauses of section 602 of specifications complete but including cost of steel in dowel bar & tie rods etc.

Complete design, supply and installation of automatic wheel wash system of heavy duty coal transportation trucks of capacity 65 Metric Tonnes consisting of the following 1. Hot Dip Galvanized wash bay 4.20 mtr. with stainless steel nozzle 1 set 2. Side spray panels 4.200 mtr. (L_) x 1 (H) mtr. - plate 1mm thick with 50x50x6mm angle support-1 each at LHS & RHS - total 2 Nos. 3. Wash water pump 25 Hp/1800 LPM - 2 set 4. Automatic vehicle entry sensing - 1 set. 5.Control panel 1 set 6.Oil skimmer - 1 Set 7.Flocculent dosing pump 3 Hp - 1 Set 8. RCC tank of 40 cum with clear and raw water separation sludge and oil grease collection chamber RCC platform of size 9.00 mtr. x 3.30 mtr. with ramp on both side and wash bay area above 0.45 mtr on either side CC road top level with required slope and shape 9.Requried pipe line network including 80 to 100 Nos. stainless steel nozzles the nozzles shall be placed for complete vehicle wash including side and bottom spray 10.Covered shed for control panel and pump set 11.Side ralling of 40mm dia MS pipes including transportation handling charges etc. all complete, the complete system shall be given with warranty period for one year. The design shall be approved by the Engineer-in-charge.

Earth work in excavation by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1.5 m in width or 10 sqm on plan), including dressing of sides and ramming of bottoms, lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil..

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources: 4 graded stone aggregate 20 mm nominal size derived from natural sources).

Structural steel work in single section, fixed with or without connecting plate, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS:277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete upto any pitch in horizontal/vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade : Two or more coats on new work

Supplying and filling in plinth with sand under floors,including watering, ramming, consolidating and dressing complete.

Total impact of GST for the purpose of CTC