Tender For Improvement Of Golamarajore Irrigation Scheme Within Block- Purulia-Ii, Dist-Purulia.Civil Works - 1 Cutting uprooting and clearing jungles including shrubs, water weeds, bushes, trees, plants, upto 30 cm. girth including removing as directed by Engineer-in-charge 2 Labour for Chipping of concrete surface before taking up Plastering work. 3 Cleaning the concrete surface by removing dirt and debris, marking defective locations and removing loose concrete by careful stripping untill hard surface is exposed, cutting the concrete to regular shape, wire brushing the exposed surface and removing debris from site complete as per direction of the Engineer - in - Charge. 4 Applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per Manufacturers specification [Cement to be supplied by the Department] 5 Extra rate for using water proofing and plasticising admixture @ 0.2% by weight of cement (or at manufacturers specified rate) for concrete of various grades 6 Providing and inserting nipples with approved fixing compound after drilling holes for grouting as per Technical Specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy 7 Sealing of crack / porous concrete by injection process through nipples complete as per Technical Specification. (A) Cement Grout 8 Excavation for StructureEarth work in excavation of foundation of structures as per drawing and technical specification, including setting out, removing, spreading or stacking of spoils within a lead of 150 m. as directed and including trimming the sides of the trenches, leveling, dressing and ramming the bottom, and backfilling with approved material complete as per direction of the Engineer-in-Charge .I. In all sorts of soil excluding marshy soil & rocks (soft or hard) by manual means.a)upto 3 m depth (i) With pumping out water including shoring as required. 9 Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement, if any, in ground floor as per relevant IS codes, including supply and carriage of all materials to site in all leads and lifts, curing, vibrating, placing etc. complete. a) Pakur Variety 10 Hire and labour charges for Shuttering with orwithout staging upto 4.0 m height using approved stout props with wooden planks/ply wood/steelsheet plate with required bracing for any kind of plain or reinforced concrete works in all sorts of minor structure including culvert, box culvert, cross-drain etc. The rate is inclusive of fitting, fixing and striking out after completion of work as perspecification and direction. (b) Where staging is not required. 11 Supply of Stone/Laterite Boulder at Site (Quarries from Pachami) including cost of material, loading, unloading and carriage and including all incidental charges like royalty complete (Royalty certificate in original from concerened authority are to be submitted along with the bill)a) Pachami source (Each weighing 25 kg & above) 12 Labour charge for dumping / laying of Laterite / Stone Boulders / Shingles / Brick Bats, from stack of worksite with all leads and lifts in water or spreading the same on the slope of the bank of River/Sea or the slope of the embankment or in the River/ Sea bed to an uniform thickness as per direction of the Engineer-in-charge including cost of all accessories and other incidental charges.(a) Boulder 20kg & above where boats are not necessary. 13 R.C. Guard postSupplying fitting and fixing R.C. guard post 1.37m long with C.C. 1:2:4 with graded stone chips of13.2mm down casting , curing complete including cost ofproviding 4nos.of 12mm dia. rod of length 1.54m as main reinforcement and 6 nos. of round shaped 8mm dia rods used as binders; the placing of the first binder should be at 75mm below the top finished surface and the other 5 nos of binders should be placed at 245mm c/c ; the guard post is of octagonal section with inscribed circle of dia 24cm at the base tapering to corresponding dimensions of 16cm at the top including two coats of painting with best quality synthetic enamel paint of approved make and grade to form 6 nos. horizontal alternate bands in white/tannery yellow and black to 90 cm length standing up above ground after mending good damages if any during striking off shuttering, making hole in ground of 47cm depth and 30cm. minimum dia, fixing the guard posts in the same holes and repacking the earth properly so as to keep the guard posts standing properly erect in correct position true to line and length including carriage of R. C. Guard Post with due care to the site including loading into the truck and unloading at site complete in all respect. With Pakur variety stone chips 14 Earthwork in excavation in the canals / drainage channels / borrow pits / River bed / slope of bank as noted below as per designed section & throwing the spoils in layers of 25 cm. for making banks as per profile or to deposit the same in any other place within an initial lead of 30 metre and initial lift of 1.5 metre including breaking clods, rough dressing etc. complete as per direction of the Engineer-in-charge. (a) Ordinary soil / local soil / soil mixed with moorum or kankar / silt, dry or moist / slushy silt / sticky soil. 15 Extra rate over Item Nos.1.01, 1.02 & 1.03 for all kinds of soil for every additional lift of 1.50 metre or part thereof beyond the initial lift of 1.50 metre. 16 i) One extra lift. 17 ii) Two extra lift. 18 Painting block letters or digits in black japan or any approved paint as per direction. 19 e) Size above 7.5 cm. and upto 10 cm 20 c) Size above 4 cm. and upto 5 cm. 21 Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation with water, ramming complete including the cost of supply of sand. (payment to be made on measurement of finished quantity) (B)by fine sand 22 Guniting concrete surface with cement mortar (25 mm nominal thick) applied with compressor after cleaning surface and spraying with epoxy complete as per Technical specification. 23 “Cast-in-situ cement concrete blocks or lining units as per designed section and specification, in nominal mix proportion 1:1.5:3 (corresponding M20 Grade) with well graded 20mm down stone metal aggregate, laid in position by casting in alternative panels or otherwise to keep a gap of 12mm between the adjacent units, over a layer of polythene sheet of thickness not less than 100 µm to act as a separator between thebottom surface of the block and the sand cushion / filter material laid below the blocks, including dressing, ramming, shuttering, finishing the exposed surface by trowel without adding any additional cement and sand mortar, curing and filling the gaps between the adjacent units by by 5.6mm down coarse aggregate to be compacted properly, with all leads and lifts including supply and carriage of all materials, complete, without the cost of sand cushion / filter. (The rate is exclusive of the cost of stone aggregate and its carriage upto site. Construction wing has to add the cost of same from the SoR of PW (Roads) to derive the consolidated rate. Consumption chart of the USoR may be used for assessing the quantity of coarse aggregates per cum of concrete).per cum of concrete).Stone aggregatesl Pakur or Rajmahal or broken stone of North Bengal varities.varieties) 24 “Precast cement concrete blocks or lining units as per designed section and specifications, in nominal mix proportion 1:1.5:3 (corresponding to M20 Grade) with well graded 20mm down stone metal aggregate, including dressing, ramming, shuttering, finishing the surface by trowel without adding any additional cement and sand mortar, curing, transportingand laying the blocks or lining units at worksite in position, over sand cushion / filter layer, with cold (paper) joints between the adjacent units, having gap varying from 0 to 5mm as tolerence, with all leads and lifts, including supply and carriage of all materials complete.(The rate is exclusive of the cost of stone aggregate and its carriage upto site. Construction wing has to add the cost of same from the SoR of PW (Roads) to derive the consolidated rate. Consumption chart of the USoR may be used for assessing the quantity of coarse aggregates per cum of concrete).per cum of concrete).Stone aggregatesl Pakur or Rajmahal or broken stone of North Bengal varities.varieties) 25 Making rectangular sausage cage with 10 SWG galvanized iron wire of 125mm. x 125mm. mesh wire netting with proper lapping of minimum 150 mm. including sewing the joints with 12 SWG G I wire and supply of all materials and equipments including placing the sausage cage in position, filling the same with boulder or lump agreegates complete as per direction of the Engineer-in-charge but excluding the cost of boulder / lump aggregates and its carriage upto site.(Cost is excluding the cost of end pieces )d) 0.90 metre x 0.60 metre nominal section 26 Supplying, fitting, fixing end pieces for rectangular / square / circular sausages at the ends, with 10 SWG / 8 SWG G I wire net of different mesh sizes tying & sewing the same maintaning a lap langth of 150 mm all around with 12 SWG G I wire complete, including the cost of supply of wire netting,fitting etc, complete as per direction of the Engineer - in - chargeb) Mesh size 125 mm x 125 mm with 10 SWG wire
