Improvements and providing Damp Proof treatment to the Roof Slab and walls of the Generator room at BIRRD Hospital Tirupati

Demolishing and disposal of unserviceable materials within 100 metres lead in unreinforced cement concrete up to 150 mm thick.

Cement Concrete (1:4:8) using 40mm (0.54 cum) and 20mm (0.27 cum) and 12mm (0.09 cum) nominal size hard broken granite crushed metal from any source conforming to the relevant ISI standards for foundations etc., laid in layer of not more than 15cm thick well compacted including curing machine mixing, cost and conveyance of all materials etc., complete.

Cement Concrete (1:2.5:5)-M15 grade using 20 mm ( 0.54 cu.m) and 12 mm (0.36cu.m) nominal size hard broken granite crushed metal from any source conforming to the relevant ISI standards for foundations etc., laid in layers of not more than 15 cm thick well compacted including curing, ,machine mixing, cost and conveyance of all materials etc., complete. Note: Measurement boxes shall be used for measuring the quantities of cement, aggregate and water required for the given concrete mix.

Supply and placing of the M-20 Design mix using 10mm HBG crushed metal 0.480 Cum 6mm HBG crushed metal 0.320 Cum sand 0.400 Cum and cement 350 kgs with water cement ratio of 0.53 (185.50 Cum of CC ) etc., from any source conforming to the relevant ISI standards including cost and conveyance of all materials like cement, fine aggregate (sand) coarse aggregate, water etc., to site and including including all operational, incidental and labour charges such as machine mixing, vibrating, laying concrete, curing , etc.,complete with minimum cement content as per IS code from standard suppliers approved by the department but excluding cost of steel fabrication charges centering charges shuttering charges for finished item of work. ( APSS No.402).

..do..for 40mm thick precast slabs using 10 mm graded aggregate of HBG crushed metal from any approved quarry with necessary reinforcement excluding cost of steel and tying of grills, but including cost of necessary form work and cost and conveyance of all materials curing as directed by the department.

Providing High Yield Strength deformed (HYSD)/ Thermo mechancially treated (TMT) steel bars of specified grade (as per IS 1786 - 2008) of different diametres for RCC works, including labour charges for straightening, cutting, bending to required sizes and shapes, placing in position with cover blocks of approved materials and size and tying and lap splicing with binding wire of 18 SWG, forming grills for reinforcement work as per approved designs and drawings, including cost and conveyance of steel bars including all wastages such as over laps, couplings, chairs, spacer bars including cost and conveyance of binding wire, cover blocks and all incidental, operational, labour charges such as cutting, bending, placing in position, tying including sales and other taxes on all materials etc., complete for finished item of work in all floors. (APSS NO.126) (In the absence of 18G binding wire,2 nos of 20G binding wire in tandem are to be strictly adhered). -do- High yield strength deformed bars below 36 mm Fe 415.

Repair to damaged concrete (ceiling / Beams/ columns)

The following procedure is to be adopted to repair the damaged concrete on ceiling/ Beams/ columns.

1) Temporary and adequate support by properly designing, staging and shuttering consisting of steel/ wooden props from the floor is to be provided. 2)(a) The damaged/ loose/ spalled/ friable concrete is to be removed by wire brushing, Scraping etc., to expose rusted reinforcement. (b) If the existing reinforcement is not damaged in terms of its size, strength, bonding properties etc., then step (4) is to be followed. (c) If the existing reinforcement (mild or tor steel) is damaged, then the same is to be replaced with new bars similar to the existing bars and then step (4) is to be followed. 3) All loose scale and corrosion deposits on the reinforcement shall be removed by Wire brushing, scraping or other mechanical means. 4) Two coats of Anti corrosive coating for steel are to be applied to avoid future rusting. 5) The exposed surface is to be finished neatly, by cement mortar duly adding suitable Polymer modifier bonding agent. 6) Curing is to be done by using a water based concrete curing compound.

The following materials are to be used depending upon the manufacturer

MAKE ANTI-CORROSIVE AGENT

a) Dr.FIXIT DR.Fixit Rust remover

b)FOSROC Nitozinc Primer Chemicals(Ind.) Pvt. Ltd.

MAKE BONDING AGENT

a)Dr.FIXIT DR.Fixit Micro concrete

b)FOSROC Nitobond SBR Chemicals(Ind.) Pvt. Ltd.

MAKE CURING COMPOUND

a) Dr.FIXIT Water

b)FOSROC Concure WB Chemicals(Ind.) Pvt. Ltd.

NOTE: 1) The rate is excluding cost of scaffolding and plastering.

2) The rate does not include the cost of the new reinforcement replacing the existing reinforcement. If the new reinforcement is placed, the cost of the same is to be paid separately.

Conveyance of Excavated Earth / debris dismantling meterials ect., with a lead of 5 kms from work site including loading unloading complete as directed during execution.

Providing weather proof course with Screeding concrete in CC(1:2:4), 25mm average thickness using 6 to 10mm nominal size HBG crushed metal chips, screeding duly embedding 24G chicken mesh with necessary overlap etc.., and finishing the surface neatly and rounding the edges at parapet walls, columns etc., including cost of chicken mesh, including cost of all materials and conveyance of all materials etc., complete as directed during execution.- In Second floor

Providing impervious coat to exposed RCC roof slab surface with CM (1:3), 20mm thick with 500 ml of liquid concentrated micronized cement water proof compound/ 100 ml of Integral cement water proofing admixture complies with IS:2645-2003 of approved make per 50 kg bag of cement laid over roof when it is green including cost of all materials, conveyance charges of materials and all operational, incidental and labour charges for mixing mortar, laying, rendering smooth and thread lining, curing, rounding off junctions of wall and slab etc., complete for finished item. - In Second floor.

Construction of Brick Masonry in CM(1:5) using well burnt Bricks 2nd class or ground moulded (Non- modular or traditional size) (230 x 110 x 70 mm) including curing, cost and conveyance of all materials as directed during execution and complying with standard specifications etc., complete.

Construction of 110 mm thick Brick partition walls in CM (1:4) using well burnt brick 2nd class or ground moulded (Non modular or traditional size) bricks (230X110X70 mm) including curing, cost and conveyance of all materials etc., complete.

Plastering in Cement mortar C.M (1:5) 20mm thick using best river sand from approved quarry including cost and conveyance of all materials, screening, curing, rounding of corners, incidental charges as directed during execution complying with standard specifications etc., complete for the following proportions

Plastering in Cement mortar C.M (1:5) 12mm thick using best river sand from approved quarry including cost and conveyance of all materials, screening, curing, rounding of corners, incidental charges as directed during execution complying with standard specifications etc., complete for the following proportions.

Plastering in Cement mortar C.M (1:3) 12mm thick using best river sand from approved quarry including cost and conveyance of all materials, screening, curing, rounding of corners, incidental charges as directed during execution complying with standard specifications etc., complete for the following proportions.

Providing Unplasticized 110 mm dia PVC pipe with wooden block of size 150mmx50mmx50mmPVC SWR Rain water downfall pipes for the following dia with ISI:13592 Type -A mark with necessary shoes, bends, collars etc., including making holes in walls, RCC slabs, beams, columns, including fixing with necessary wooden plugs (where it is required pipe clear of wall, wooden blocks of size equal to that of ears of the pipe shall be used), screws, iron clamps of 18 G and making good the same including cost and conveyance of all materials and incidental charges etc., complete as directed during execution.

Supply of Medium Teak wood scantlings up to 2 mts and Labour charges for wrought and put-up for wood scantlings.

Supply of Medium Teak wood Planks any thickness and Labour charges for wrought and put-up for wood scantlings.

Supply of 18mm thick MEDIUM DENSITY FIBRE BOARD. INTERIOR GRADE ONE SIDE LAMINATED and Labour charges for wrought and put up including fixing in Windows Framed and Planked etc., complete.

Labour charges for wrought and put up including fixing in position frames of any size, shutters for doors, windows, ventilators including fixing all necessary fixtures etc. for Teak wood Windows panelled including outer frame and shutter frame

Supplying and fixing in position 30 mm thick Flush Door Shutters, solid bond wood block board type with commercial ply on both faces of standard make Conforming to IS :2202 of standard make with hot pressed bonded with liquid phenol formaldehyde with rebate cutting, Single leaf using Best Indian Teak wood frames of size 75mm x 100mm without threshold plate, including cost of M.S "Z" Hold fasts of 230 x 50 x 6mm, M.S Powder coated Butt hinges of 125 x 65 x 2.12mm, screws, nails, etc., complete, (excluding cost of other fixtures which will be paid separately but including labour charges for fixing the fixtures).

Supply of Anodised Aluminum Aldrop 16mm dia x 300mm long with ISI mark IS 2681

Supply of Anodised Alluminium Door handles IS 208 150 mm long

Supply of Anodised Alluminium tower bolts 10 mm x 200 mm lomg with ISI mark IS 204

Providing weld mesh enclosures made out of M.S ' L ' angles of size 25 x 25 x 5mm for outer frame, M.S. ' T 'section of size 25 x 25 x 5mm for central vertical mullion and fixing the 6 G x 10 G weld mesh with openings of size 75mm x 25mm to the frame by using M.S. flat of size 25 x 5mm by means of M.S. bolts and nuts including fixing the frame in position by making holes in walls / R.C.C. fin walls and making good the same and finishing smooth etc., complete as directed during the execution.

Supply & fixing in position of M.S. Tubes & pipes of all diametres as per IS-1161 including Labour charges for fabricating all heavy steel works like Trusses, Stanchions, Heavy Beams and Girders including cost of welding rods, power charges, etc and Labour charges for fixing heavy iron grills, Trusses, Stanchions, Heavy Beams and Girders erecting in position and fixing by using chain pulley blocks, Derek pole arrangements and cranes etc., complete in position with two coats with synthetic enamel paint Garde-I over a primary coat (Red oxide metal primer) (total three coats) of approved make and colour and make including brushes to have an even shade including cost and conveyance of all materials as directed during execution complying with standard specifications etc., complete.

Supply and fixing of Galvalume sheet Pre-painted Galvalume Trapezoidal Profile Roofing sheets with 0.47mm thickness, Coating: Alu-Zinc coating AZ150 GSM. Tensile Strength: 550 MPA. Paint coating: Regular Modified Polyester painting. Painting thickness (Top): 18 to 20 Microns, (Bottom): 5 to 7 Microns. Sheet Width: 1.020, Length: Maximum 12 Meters with Regular Range Colours with minimum end lap of 15 cms etc.,complete as directed during execution.

Painting two coats for Old external walls with Acrylic Emulsion paint exterior grade having VOC (Volatile Organic Compound) content less than 50 grams/liter of approved brand and shade after thoroughly brushing the surface to remove all dirt and remains of loose powdered materials, including cost and conveyance of all materials to work site and all operational, incidental, labour charges etc., complete for finished item of work as per SS 911 for external walls.

Painting two coats for Old internal walls with Acrylic Emulsion paint interior grade having VOC (Volatile Organic Compound) content less than 50 grams/liter of approved brand and shade after thoroughly brushing the surface to remove all dirt and remains of loose powdered materials, including cost and conveyance of all materials to work site and all operational, incidental, labour charges etc., complete for finished item of work as per SS 911 for internal walls.

Painting with Ready mixed Synthetic Enamel paint in all shades Grade-I having VOC (Volatile Organic Compound) content less than 50 grams/liter approved colour and make including brushes to have an even shade including cost and conveyance of all materials as directed during execution complying with standard specifications etc., complete. -do- Two coats for old wood work or old plastered surface.

'-do- Two coats for old iron work or old plastered surface.

-do- Two coats for new plastered surface over primer coat (total three coats)

Supply of 2nd class semi-skilled workmen /Carpenter as directed during execution.

Supply of unskilled workmen (Man mazdoor / woman mazdoor) for helpers etc,.as directed during execution.

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TO THE TERRACE WITH FOLLOWING SPECIFICATION.

Providing and laying five layer water proofing cum heat insulation treatment (MIX GUARD HR5) over existing roof slab, all as directed by Engineer-in-charge and as per the following specification:

A. Surface preparation – Cleaning the whole area with wire brush. Chipping all loose/dead mortar thoroughly. Cleaning the entire area with high pressure water jetting to remove all loose particles/grease/oil/dust/dirt/curing compound etc. Surface cracks must be filled with Mix Build GP and wide cracks must be cut and repaired with Mix build SR polymer modified repair mortar. B) Application of Mix Guard HR5 – five layer system with brush.

1. First layer – MIX PRIME AC-100

Apply base prime coat using Mix Prime AC100 compound which is produced by mixing Mix Prime AC-100 with water and cement at the ratio 2:1:3 (Mix prime AC 100 : water : cement) by volume with a slow speed drill with paddle. This compound shall be applied with sufficient thickness to cover the holes/pores/cracks @ 1 lit/sq.m area (0.35 Lt of MIX Prime AC100/sq.m)

2. Second Layer – MIX MAT GFM 70/50

Mix mat GFM70/50 Synthetic fibre reinforced mesh shall be spread on the top of the primer/in mix with Mix prime AC100 in the wet condition and allow to dry for a period of 6 to 8 hours. A minimum overlap of 100 mm to be provided at the joints i.e. at 1.10 sq.m/sq.m. The Mix mat GFM Mesh shall confirm to the technical specification as per the manufacturers data sheet.

3. Third Layer – MIX PRIME AC

Apply one coat of Mix Prime AC water based acrylic primer (with undiluted material) over the MIX mat GFM mesh @ 0.25 Kg/sq.m as a water tight primer in white colour and allow to dry for a period of 6 hours.

4. Fourth layer – MIX GUARD HR (Base Coat)

Apply one coat of Mix Guard HR acrylic based water proof and weather proof coating in white colour (with undiluted material) @ 0.50 kg/sq.m as a membrane on top of Mix prime AC and allow to dry for a period of 6 hours.

5. Fifth Layer – Mix Guard HR Extra (Top Coat) Apply one coat of Mix Guard Hr Extra acrylic based fibre reinforced water proofing and heat reflective membrane in white colour on top of Mix Guard HR base coat (With undiluted material) @ 0.50 kg/sq.m. And allow to dry the system for period of 24 hours to allow foot traffic.

Note: All the materials namely Mix Prime AC100, Mix Mat GFM70, Mix Prime AC, Mix Guard HR and Mix Guard HR Extra shall be procured for the entire work order quantity based on the consumption/coverage area as specified in the specification and shall be ensured by Engineer-in-charge. The Mix Guard HR5 layer system shall be carried out as per FAB Specifications.

Tensile strength : 6.00 N/mm2 (ASTM D412 – 87) Adhesion to substance : > 1.5 N/mm2 (ASTM D4541) for MIX PRIME AC100 slurry with HP tiles, cementitious substrate and subsequent layers. Appearance: White/Grey/Terracotta liquid components Dry film apperance : Joint free membrane Density : 1.3 gm/cc

Tear strength : > 17 N/mm2 (ASTM D1004-76) Elongation at break : 200% for the system (ASTM D638) DFT of cured membrane : 1500 to 1700 microns Total Solids content: 68% + 2% . Water penetration : No leak at 7 bars +ve side (DIN 1048) Application temperature : 5 deg C to 50 deg C Touch dry: 2 hrs at 25 deg C Recoatable : 6-8 hrs at 25 deg C Full cure: 7 days.

Total (Rupees Sixteen lakhs sixty four thousand four hundred twenty one and paise seventy two only)