Repair to floor waterproofing of roof walk way in WD and repair to floor of beta light shop at OFCD

Amount

Demolition of reinforced cement Concrete of any description and in any position not otherwise specifically provided.

Demolition of PCC Concrete of any description and in any position not otherwise specifically provided for.

M/L for Formwork to sides of concrete foundations, footings, bases of columns, raft and raft beams,sides and soffits (if any) of foundation and plinth beams; and similar work; vertical or to batter rough finished surfaces of concrete flat surface.

M&L REINFORCED READY MIXED CEMENT CONCRETE (DESIGN MIX) Foundation, including raft footings, foundation beams, plinth beams, bases for column etc., basement slabs, underreamed piles and mass concrete M 25 (OPC 53 Grade cement)

S&F of TMT Bars 6 to 8 mm dia and over cut to length,bent to shape required, including cranking bending spirally for hooping for columns,hooking each, binding with and including mild steel wire(annealed) n.less than 0.9mm dia or securing with clips.

M&L for cement concrete Type A, 1:1.5:3 ( M20), 12.5 mm graded aggregate.

Dismantling wrought iron or mild steel work of any description not otherwise provided for.

S&F rolled sections as in framing for cladding, glazing and the like fixed with angle cleats and connecting plates, etc. Fe-410- W(Gde- E-250) quality- A

Erection and fixing only rolled sections as in framing for cladding, glazing and the like fixed with angle cleats and connecting plates, etc.

S&F for Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment with riveted, bolted or welded attachment.Fe- 290 (Gde E- 165)

M&L for Steel rolling shutters, with ball bearing, as specified including top cover, anchoring rod, hasp and staple and one shop coat of primer; erected in position as indicated, complete: gear operated type with bevel gear box and crank handle ® thickness of lathes is 1.25 mm

M&L for preparing new steel surfaces, apply one coat of red oxide/ zinc chrome, synthetic enamel(ordinary/ tint) painting two coat Surfaces of any description, not otherwise descri-bed, over 10cm width or girth steel based surface (Asian paints / Nerolac/ Berger).approved by OFCd.

M&L for preparing old steel surfaces, apply synthetic enamel(ordinary/ tint) painting two coat Surfaces of any description, not otherwise descri-bed, over 10cm width or girth steel based surface (Asian paints / Nerolac/ Berger).approved by OFCd.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing), removing serviceable tiles to store and rubbish off the premises.

Taking down cement or cement lime plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc.

M&L rendering 15mm thick on fair faces of brick work or concrete surfaces1:6 cement plaster and rendering is to be finished even and smooth (without using extra lime or cement)®

M&L for Glazed ceramic tiles in vertical surface 350x 250x 7 mm/ 450X 350X 7mm thick set and jointed in neat cement slurry and pointed in white or colour cement to match colored tiles.( make: kajaria, jonson, Nitco) Shade / design as approved by EIC at the time of execution.

M&L for 3mm thick wall care putty on wall.

Dismantling Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings.

M&L for Roughening surfaces of old concrete floor by picking, sweeping clean and washing down with water to remove dust, etc, Brushing neat cement slurry with 3.0kg of cement per sq. metre®and Screed bed or bedding layer of mortar 20 mm thick for laying floor finishes (1:4).

M&L for brushing neat cement slurry with 3.0 kg of cement per sq.m & rendering 20mm thick cement plaster 1:4 on wall.

Fixing only Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering /cladding to wall, fixed with self tapping screws as specified.

M&L taking down loose ceiling cement plaster including raking out joint hacking ,scrubbing down with water, Dubbing out average 10mm thick on irregular face of walls (when specifically ordered in writing) In 1:4 cement plaster.brushing neat cement slurry with 3.0 kg of cement per Sq.m & Rendering 15mm thick on fair faces of brick work or concrete surfaces of 1:3 cement mortar in ceiling.rendering is to be finished even and smooth (without using extra lime or cement. Upto height of four storeys including proper scaffolding and safety.

Cutting grooves in brick wall, 75 mm wide and 65 mm deep and shaping horizontal face of groove with cement mortar 1:3.

M&L for cement concrete Type A,1- 1:1.5:3 ( M20), 20 mm graded aggregate.

Removing building materials etc. to a distance of 100m or under, beyond the lead included in the rates, including loading, unloading and stacking at the destination

S&F of PVC SWR bend110mm.

S&F of PVC SWR bend75mm.

S&F PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors(75mm)

S&F PVC (SWR) pipes single socketed, in any length with rubber ring joints, laid in trenches or in floors(110mm)

M&L for (A) Surface Preparation: The substrate must be load bearing, fine pored and freefrom contamination and dust. Unevenness and ridges must be thoroughly eliminated. Surface voids or hollows greater than 5 mm which have not been closed off such as mortar pockets or defects are also to be repaired with mortar before application of screed. Furthermore, the surface should be free from gaping, cracks and adhesion inhibiting materials such as oil, paint, laitance and loose components. Thoroughly strip off laitance layers mechanically from the base slab back to a sound core, in order to ensure a high bond strength. As a vulnerable and sensitive area, the transition between the base slab and wall is to be pre-treated with suitable treatment. (B) Providing and installing FloArm Screed Eco of MYK Arment or admixure by sika/Fosroc or equivalent by admixed 120 ml to 50 Kg Grey OPC 53 Grade cement, with a Cement/sand ratio in 1:5 v/v, and the sand should be 0-8mm as per sieve analysis recommendation which can be obtained on request & 40% gravel of 8 or 10 mm down according to DN 10452, Mixing with water @0.5 W/C Ratio by mechanical means, FloArm Screed Eco is a screed refining agent and additive, including installing level buttons, spreading the screed using straight edge, compacting at required thickness over the wet bonding slurry, continuing the day end joints or joints due to delay by applying bonding slurry, etc and complete as per manufacturer's specification. (make: MYKarment, fosroc or equivalent)

M&L for (i) Surface preparation: The concrete substrate must be sound and of sufficient compressive strength (minimum 20 N/mm2) with a minimum pull off strength of 1.5 N/mm2 for durable and lasting flooring. The substrate must be level, clean, dry and free of all contaminants such as dirt, oil, grease etc. All previous floor coating if any must be mechanically removed to the maximum extent possible. It is acceptable to relay on floor coating that has a firm bond (pull out strength of 1.5N/mm2). Concrete substrates must be prepared mechanically using abrasive blast cleaning, scarifying or grinding equipment to remove cement laitance and achieve an open textured surface. Weak concrete must be re moved and surface defects such as blowholes and voids must be fully exposed.Repairs to the substrate, filling of blowholes/voids and surface leveling must be carried out using appropriate repair product. The concrete or screed substrate has to be primed or leveled in order to achieve an even surface. High spots must be removed by grinding. (make: MYKarment, fosroc or equivalent) (ii) Providing and installing Myk Arment 6mm thick Polyurathene flooring using FloArm Top HPU 6 , 4 components with outstanding wearing properties self smoothing heavy duty polyurethane flooring, mixing 4 components by mechanical means,mixed screed FloArm Top HPU 6 (Thickness 4.0 mm) over completely dried coats of FloArm HPU Sc as Scratch coat etc spreading the mix using trowel, including surface roughening, groove cutting, cleaning, groove filling using FloArm Top HPU 6 allowing it to dry completely, etc and complete as per manufacturer's specification. The parameters for FloArm Top HPU 4 are as follows: Compressive strength (IS9162-1979) Approx. 53 N/mm² (BS6319) Tensile strength (IS9162-1979) Approx. 7 N/mm², Flexural strength (IS9162-1979) Approx. 12 N/mm², Adhesive pullout bond strength in N/mm² (ASTM D 4541-2002) > 1.5 N/mm² (concrete failure) Taber abrasion resistance (1000 g, 1000cycles) (ASTM D4060) weight loss, mg CS17 wheel: 125, H22 wheel 1500, Shore D Hardness 75 Slip resistance (under BS 8204: Part 2: 2002(9),wet and dry ) Satisfactory Impact resistance (under BS 8204: Part 1: 1999) Satisfactory Water absorption 0 ml, Surface spread of flame (BS 476: Part 7) Class 2 Foot traffic @ 30degC After 36 hrs, Light traffic @ 30degC After 48 hrs, Full traffic @ 30degC After 60 hrs, Full cure @ 30degC After 7 days (make: MYKarment, fosroc or equivalent). The laying of matrial shall be got done through the authorized applicator of the maunfacurer. OFCd will verify the same while execution of work. (iii) Providing and cleaning of pot holes with wire brush and cut the groove of damange portion and fill it with MYK ERM (Epoxy Repair Mortar) FloArm ERM is a three-component filled epoxy (make: MYKarment, fosroc or equivalent)

Supply and apply of Resin mortar with the following properties:  Solvent free  High compressive and flexural strength  High resistance to mechanical loading Repair of Damage and Voids in Concrete:Apply FloArm ERM to the voids over the wet primer in one application, compact and strike off level with thesurface (make: MYKarment, fosroc or equivalent)

Taking down old tarfelt & cleaning the bitumen surface by wire brushing, washing down & disposing the pealed off tarfelt muck, removing grass, small trees with uprooting etc. from roof.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of acoat of bitumen primer for bitumen membrane @ 0.40 litre/sqm of the same manufactures as membrane of density at 25°C, 0.87-0.89 kg/litre and viscocity 70-160 cps. Over the primer coat the layer ofmembrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/ 5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through theauthorised applicator of the manufacturer of membrane Make- STP,IWL,TATA.

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