Special Repairs to Existing Foot Over Bridge over 9 IRSD Area Channel near Pallava Park and Provision of Storage Shed at CE Navy Complex, Visakhapatnam

Amount

Demolition of Unreinforced Cement Concrete in ground floors and Pavings not exceeding 15cm thick [below or above ground level] and removing rubbish to a distance not exceeding 1.50 KM complete all as specified and as directed.

Demolition of Reinforced Cement Concrete as in Roof, Floors [other than ground floor], beams, staircase, landing, Chajjas and similar suspended work including reinforcement cut as required to facilitate demolition and removing rubbish to a distance not exceeding 1.50 KM complete all as specified and as directed.

M & L for Cutting / Chipping the spalling concrete surfaces of Slabs, Beams, Columns, Fins, Facias, Parapets & Chajjas etc. and trimming, cleaning the surfaces of any thickness to receive Guniting / Plastering, preparing surfaces and applying a coat of Zinc rich epoxy primer to all steel surfaces as antirust agent and welding steel wire Fabric / Mesh of size 75X25mm of weight not less then 3.0KG per Sq.m to existing reinforcement, applying a coat of Nito Bond AR of M/s. Fosroc Chemicals or equivalent approved bonding agent in M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. as per manufacturer's instructions and providing pressure Guniting averaging 25mm to 40mm thick at a pressure of not less than 6 KG / Sq.cm in Cement Mortar 1:3 duly modifying the mortar with and including suitable bonding agent of M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. @ 5% of weight of cement for sides and soffits of Slabs, Beams, Columns, Fins, Parapets Facias & Chajjas etc., finishing the top surface even and smooth without using extra cement conforming to proper geometrics including providing double scaffolding and safety measures as required and removal of the same on completion and disposal and depositing the demolished material out of MD land complete all as specified and as directed.

M & L for Cutting / Chipping the spalling concrete surfaces of Slabs, Beams, Columns, Fins, Facias, Parapets & Chajjas etc. and trimming, cleaning the surfaces of any thickness to receive Guniting / Plastering, preparing surfaces and applying a coat of Zinc rich epoxy primer to all steel surfaces as antirust agent and welding steel wire Fabric / Mesh of size 75X25mm of weight not less then 3.0KG per Sq.m to existing reinforcement, applying a coat of Nito Bond AR of M/s. Fosroc Chemicals or equivalent approved bonding agent in M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. as per manufacturer's instructions and providing pressure Guniting averaging 50mm thick at a pressure of not less than 6 KG / Sq.cm in Cement Mortar 1:3 duly modifying the mortar with and including suitable bonding agent of M/s. Sika India Pvt. Ltd. or M/s. STP Ltd. or M/s. Choksey Chemicals Pvt. Ltd. or M/s Bostik India Pvt. Ltd. @ 5% of weight of cement for sides and soffits of Slabs, Beams, Columns, Fins, Parapets Facias & Chajjas etc., finishing the top surface even and smooth without using extra cement conforming to proper geometrics including providing double scaffolding and safety measures as required and removal of the same on completion and disposal and depositing the demolished material out of MD land complete all as specified and as directed.

M & L for RCC M-20 Design Mix, using 20mm graded stone aggregate as in Beams, cantilevers, bressummers, lintels over 1.5m span etc. complete all as specified and as directed.

M & L for RCC M-20 Design Mix, using 20mm graded stone aggregate as in Slabs supported on walls, beams, columns, landings, shelves and the like complete all as specified.

Use and removal of steel formwork to sides and soffits of floor or roof beams, beam launchings, girders, bressummers, lintels, cantilevers, shelves including supports, overhangs, etc, splays between floors and beams and similar works for fair finished surfaces of concrete complete all as specified and as directed.

Use and removal of steel formwork to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work not exceeding 200mm thick [horizontal or sloping] including fair finished surfaces complete all as specified and directed.

Taking down Cement Plaster of any description on brick or stone walls or concrete surfaces etc including raking out joints, hacking for key scrubbing down with water etc and removing rubbish to a distance not exceeding 1.50 KM complete all as specified and as directed.

M & L for cutting holes into or through cement concrete Slabs, Chajjas, Beams, Columns etc. reinforced or otherwise for superficial area exceeding 100 Sq.cm and not exceeding 250 Sq.cm complete all as specified and as directed.

M & L for Plain / Reinforced cement concrete Type C1 [Nominal Mix] 1:3:6 using 20mm graded stone aggregate cast in situ in lintels up to 1.5m span, Cills, steps, seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings up to 60 cm in height, copings, kneelers, apex stones, bed plates including weathering, slightly rounded or chamfered angles and throating as directed including use and waste of form work, complete all as specified and as directed.

M & L for brick work with Fly Ash bricks, straight or curved on plan exceeding 6 m mean radius built in Cement Mortar 1:6 complete all as specified and as directed.

S & F Reinforcement using High Strength Corrosion Resistant Deformed TMT Bars of Grade Fe–500D of 10mm dia and over, cut to length, bent to shape required including cranking, bending, spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded complete all as specified and as directed.

S & F Reinforcement using High Strength Corrosion Resistant Deformed TMT Bars of Grade Fe–500D of 6mm to 8mm dia, cut to length, bent to shape required including cranking, bending, spirally for hooping, hooking ends and binding with annealed mild steel wire not less than 0.9mm dia or securing with clips or welded complete all as specified and as directed.

M & L for 100 mm thick, PCC 1:2:4, Type B-2, using 40mm graded stone aggregate as in Floors / Hard standing / Path etc., surface finished fair and even complete all as specified and as directed.

M & L for 25 mm thick, PCC 1:2:4, Type B-0, using 10mm graded aggregate as in Sub base for flooring complete all as specified and as directed.

M & L for Glazed Polish finished coloured Chequered Cement Concrete Tiles of thickness 23 to 25mm, made with M-25 Grade Precast Cement Concrete, Hydraulically pressed of size not less than 300 X 300 mm, of approved shape, colour and pattern, set, jointed and pointed in neat cement slurry to match including screed bed or bedding layer of mortar 20 mm thick in Cement Mortar 1:4 complete all as specified and as directed.

M & L for rendering to brick / concrete surfaces, 15 mm thick in Cement Mortar 1:4 and finishing the top surface even and smooth without using extra cement complete all as specified and as directed.

M & L for rendering 5 mm thick in Cement Mortar 1:3 on fair faces of concrete surface of ceiling surfaces finished even and smooth without using extra cement complete all as specified and as directed.

M & L for preparing newly plastered ceiling surfaces and applying three coats of white washing complete all as specified and as directed.

M & L for preparation of old plastered or unplastered surfaces including brooming down or steel wire brushing and applying two coats of white wash on ceilings complete all as specified and as directed.

M & L for preparation of newly plastered wall surfaces and applying two coats of Cement Based paint over a coat of Alkali Resistant Primer complete all as specified and as directed.

Dismantling of Mild Steel or Wrought Iron Work of any description not otherwise provided for complete all as specified and as directed.

S & F Stainless Steel Railing made with Stainless Steel Pipes of wall thickness not less than 1.6mm, of Grade AISI 304, standard quality, bright polish finish, using 50mm dia pipes for hand rail, 25mm dia pipes for vertical supports / balusters and 25mm dia pipes as in tie bars in three layers, SS tubes shall be welded at the turnings and junctions, welded portions shall be completely grinded and brought to bright and smooth finish including all bends, elbows, making holes in the floor / steps, grouting with epoxy to achieve full strength of railing complete all as specified and as directed.

Surface excavation not exceeding 30 cm deep and averaging 15 cm deep and getting out in Soft / Loose soil complete all as specified and as directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 10 Sq.m on plan area and not exceeding 1.5m deep in Soft / Loose soil complete all as specified and as directed.

Removal of excavated material [Soil] to a distance exceeding 250m and not exceeding 500 m and depositing where directed at a level not exceeding 1.5 m complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm thick of excavated soil complete all as specified and as directed. Note: A deduction of 10% shall be made from total computed volume of filling to cater in bulk irrespective of machinery used for ramming.

Excavation in post holes each not exceeding 0.5 Cu.m, getting out in Hard / Dense soil, including returning, filling in and ramming earth or broken rubble mixed with earth around in layers not exceeding 25cm thick, watering and removing surplus soil to a distance not exceeding 50m and making good surface complete all as specified and as directed.

M & L for PCC 1:2:4, Type B-1, using 20mm graded stone aggregate as in Foundation, Fillings, Mass concrete, Footings etc complete all as specified and as directed.

M & L for PCC 1:4:8, Type D-2, using 40mm graded stone aggregate as in Foundation, Fillings, Mass concrete, Footings etc complete all as specified and as directed.

M & L for Hardcore of gauge not exceeding 63mm of broken stones or boulders, deposited, spread and levelled in layers not exceeding 15 cm thick watered and rolled with power road roller of 8 to 12 ton capacity and consolidated to required gradient and camber complete all as specified.

M & L for 100 mm thick, PCC 1:2:4, Type B-1, using 20mm graded stone aggregate as in Sub base for flooring complete all as specified and as directed.

M & L for Sand Filling under floors or in foundations including watering and consolidation complete all as specified and as directed.

M & L for Inter Locking Paving Blocks of 80mm thick, made with M40 Grade cement concrete using 20 mm graded stone aggregate, Hydraulically pressed of approved colour and pattern, shape and size conforming to IS - 15658 set in floors complete all as specified and directed.

S & F for Pre-Painted Galvalume steel sheets of Trapezoidal profile having pitch 190mm, depth 29mm or Tiled Profile and thickness 0.50mm [Galvalume base-PPGL trapezoidal profile sheets], having tensile strength of 550 MPa, fixed with aluminium self tapping screws, neoprene and EPDM washers of suitable size in roof covering complete all as specified and as directed. Note: Overlap shall be provided as specified by the manufacturer.

S & F Mild Steel work as in Tubular Trusses, Posts etc. including special shaped washer etc. complete using ERW or induction butt welded tubes conforming to IS - 1161, Grade YST - 240, Medium Grade of any dia complete all as specified and as directed.

M & L for two coats of Synthetic Enamel paint over one coat of Red Oxide / Zinc Chrome Primer on new steel surfaces over 10cm width or girth including preparation of surfaces complete all as specified and as directed.

M & L for preparing newly plastered wall surfaces and applying three coats of white washing complete all as specified and as directed.

S R CONSTRUCTIONS