ET-1720

Earth work in excavation for foundations. Plinth beams, trenches, pipe lines, inspection Chambers etc. in all types of soils, mixture of gravel and disintegrated rock other than hard rock up to a depth of 4.00 m including shoring, strutting, bailing and pumping of water, leveling and ramming the bottom of excavation, refilling with selected materials in the sides of the foundation, in layers and consolidating and disposal of surplus materials at places as directed within a lead of 50 meters all as per specifications.

Providing and laying 230mm thick rubble soling with 230mm size hard basalt quarried soling stones and gapes & voids to be filled up with cleaned river bad sand, Granuals and quarry waste including supplying and filling voids with 75mm to 115mm size hard basalt metal, murram, watering, compacting by hand etc. complete all as per specifications.

Providing and casting in situ concrete of grade 1:3:6 using stone of max. size 20 mm including form work, mixing, transporting, placing as base course, consolidating, curing and finishing smooth all exposed faces for all in situ items as per drawings and specifications(The rate quoted shall be inclusive of formwork required if any). NOTE: (i) Min. Consumption of cement is assumed at 220 kgs./Cum (ii) Bidder shall consider cost of shuttering while quoting the rate.

Providing and casting in situ RCC of grade M - 30 conforming to IS 456-2000 using stone of max. size 20mm including form work, scaffolding, mixing, adding Admixture, transporting, placing at all lifts, vibrating, consolidating, curing and finishing smooth all exposed faces for all in situ items including Hatch Cover as per drawings and specifications.(The rate quoted shall be exclusive of reinforcement but inclusive of formwork, Admixure etc. ) NOTE: (i) Min Consumption of cement is assumed at minimum 350 kgs./ CuM (ii) Design Mix preparation shall be obtained from reputed NABL approved Concrete Testing Laboratory & to be submitted to EIC before start of the work. (iii) Addition of admixture to accelerate, retard setting of concrete/ to improve workability without impairing strength and durability of concrete as per IS: 9103. (iv) No additional payment shall be made for either Admixture or additional cement used.

Providing and casting 50mm thick Precast cover of RCC grade M - 30 using stone of max. size 20mm including form work, scaffolding, mixing, adding Admixture, transporting, placing at all lifts, vibrating, consolidating, curing and finishing smooth all exposed faces for all in situ items including making perforated as per drawings and specifications. NOTE: (i) Min. Consumption of cement is assumed at 350 kgs./ CuM (ii) Design Mix preparation shall be obtained from reputed NABL approved Concrete Testing Laboratory & to be submitted to EIC before start of the work. (iii) Addition of admixture to accelerate, retard setting of concrete/ to improve workability without impairing strength and durability of concrete as per IS: 9103. (iv) No additional payment shall be made for either Admixure or additional cement to use v) Gantry crane will be provided by the department for placing the precast covers at free of cost subject to its availability

Providing, straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement TMT bars of Fe500D grade steel conforming to IS:1786 - TATA / SAIL / VIZAG / JINDAL make' and tying with approved annealed binding wire of 1.6mm dia in all reinforced cement concrete work at all lifts including cost of supplying and fixing the spacer/cover blocks (As per Drawing) in cement mortar 1:2 and binding wire complete all as per specification and as directed by Engineer-in-Charge at all lifts. Note: The rate shall be including the cost of reinforcement steel. The reinforcement steel will be procured from dealers with a test certificate as approved by the department.

Filling in foundations and plinth with Coarse aggregate (20 mm and below up to 10mm) with all cost of leads in layers of not more than 150mm thick each layer well rammed and consolidated including watering etc. complete

Supplying, fabricating and fixing stainless steel sections like 6,12,20mm thick S S Plate, 20mm Dia. S S Rod, 80 nb S S pipes with threaded cap, paddle flange etc. made out of SS 304 material including cutting, grinding, welding, buffing (gloss/matt finish),DPT, transporting etc. for making S S tanks, lifting hook etc. including making hole, cutting to required size and shape, fixing in line with suitable anchors etc. complete as per drawing. Note : The welding of these shall be carried out by qualified procedure using qualified welder & to ensure the GTAW / SMAW 6MM full weld quality,10% DPT w.r.t. total nos. of hook will be done in presance of QA representative as directed by Engineer.

Providing 15 mm thick Water proof cement plaster in cement mortar 1:3 mixed with water proofing compound @ 0.20% of cement used including finishing with a floating coat of neat cement, scaffolding, curing all as per specifications.

Supplying & fixing with 1.5mm thick EPDM membrane as per following procedure. 1. Covering the area with Firestone Rubber Gard - EPDM / Similar product of SIKA / FOSROC / CONCARE / CHOKSEY / PIDILITE membrane water proofing system, pasting with Quick Seam Prime Plus of Fire stone / Similar product of SIKA / FOSROC / CONCARE / CHOKSEY/PIDILITE (1.14 mm Thick, Weighing 1.4 Kg/Sq Mt) Note: a) Membrane shall be applied after 7 days of freshly laid Kotastone / concrete (so that it becomes sufficiently dry after curing period). b) Shoulder width on either side of joint shall be as per manufacturer's specifications. c) The Area of treatment shall be provided over box type water proofing over kotastone (kota stone shall be paid in seperate item) as external waterproofing below the base slab and external surface of outer wall. The sheet shall extended up to top level. d) Item includes material, labour, Tools and tackles etc. complete as approved by Engineer and as per manufacturer's specifications. e) Pond test will be performed on treated area at Bidder's cost. f) Payment will be done for the area on which membrane is applied. g) Adhesion is required to be applied on total area to be treated.