Urgent Repairs to the Sakhi Biwas NTR CSD & EW, Tirupati Padmavati Puram Panchayat at Tiruchanur, in Tirupati District

Cleaning of the Roof surface : For Waterproofing treatment If the surface is sound & hard Condition ) The surface must be cleanand sound duly removing of exisiting tretaments clean from dirt, dust and other contaminations by power grinding wire brushing , air blower & jetwater cleaing.

SPECIALISED FIVE LAYER SYSTEM OF WATERPROOFING TREATMENT TOTHE TERRACE Providing and laying five layers waterproofing cum heat reflective treatment over the old / new roof slab/ terrace, all as directedby Department Engineer-in-charge with the following specification and should be complain with the following technical parameters for the system - Density: 1.3 Gm/cc, Solids content: 68% ± 2% byweight, Elongation at break ASTM D 638: 200% (for the system), Adhesion to substrate ASTM D 4541: >1.5 N/mm2, Water penetration DIN 1048: no leak at 7 bars, Tear resistance ASTM D 1004-76: 17N/mm2, Tensile strength ASTM D 412- 87:6.0N/mm2

Supplying and fixing of MS Grill to Openings of of size 1400mm x 2550mm using 25mm x 6mm MS flat alround and 10mm MS square bars both horizontally vertically at 100mm centre to centre including fixing with 4 Nos of MS Z holdfasts (2 on each side) duly making cutting brick masonry, fixing and making to original surface neatly and painting grill with one coat of red oxide primer including cost all taxes and conveyance of all materials including cutting, bending, welding including all operational charges and all labour charges etc., complete for finished item of work.

Providing & Fixing of Mesh windows made of pre-painted steel (Base Steel as per IS 513 of 0.58mm thick galvanized as per IS 277 with zinc of 120 GSM), primer coated with epoxy primer of 5-7 microns thick, finish painted with a polyester paint of 12-16 microns thick and back coated with 5-7 microns thick alkyd backer, section for outer frame of 47 x 36 mm, centre mullion of 60 x 36 mm, section mesh beading 18 x 6 mm and Fly mesh shutter section of 20 x 40 mm, the sections cut to length meter joined with corner bracket and centre mullions fixed with mullion cap, handles, latch, 2 Nos of heavy duty stainless steel pivot hinges per S.S. Mesh for fly mesh shutter (304 grade) including fixing the frames in the concrete/masonry wall by means of self expanding screws complete for finished item of work.

Providing and fixing factory made polyvinyl chloride (PVC) Door Frame of the size 50 x 47mm with a wall thickness of 5mm, made out of extruded 10 mm rigid PVC foam sheet, mitre cut at two corners and joined with 2nos. of 150mm long brackets of 15x15mm M.S. square tube. The two vertical door profiles are to be reinforced with 19x19mm M.S. Square tube of 19 gauge. The door frame shall be fixed to the wall using 65/100mm long M.S. Screws through the frame by using PVC fasteners. A minimum of 4nos. of screws to be provided for each vertical member & minimum 2nos. for horizontal member etc. complete as per manufacturers specification and direction of Engineer-in-Charge for finished item of work

Providing and fixing 30mm thick factory made solid single side prelam panel PVC door shutter consisting of frame made out of MS. Tubes of 19 gauge thickness and size of 19mm x 19mm for stiles, and 15mm x 15mm for top and bottom rails. The MS frame shall have a coat of steel primers of approved make and manufacture. MS frame covered with 5mm thick heat moulded “Rajshri” single side Prelam Pac ‘C’ channel of size 30mm x 50mm to form stiles.5mm thick& 75mm wide single side prelim Pac sheets shall be for the top, bottom and lock rails. Panelling of 5mm thick one side Pac sheet to be fitted in the MS frame and sealed to the front (prelam side) stiles and rails (which should have a 5mm 45 bent portion as beading) and attached to the back(white/ivory) stiles and rails which should have a 10mm 900 bent portion as beading) using 2nos. 15mm wide x 5mm thick Pac sheet beading inside the 90 bent beading. All stiles, rails and beadings are to be joined to the panel using solvent cement etc. an additional 5mm thick Pac strip of 20mm width to be stuck on the interior side of the ‘C” channel using Pac solvent cement adhesive and 10mm(5mmX2) thick, 20mm wide cross Pac sheet to be fitted as gap insert for top and bottom rail etc., complete as per direction of Engineer –in-Charge, manufacture specification and drawing including ISI marked Aluminium fixtures 3 Nos. butt hinges (IS:205) of 150mm long, 1 No. aldrop (IS:2681) 250 mm long, 1 No. tower bolt (IS:204) of 150 mm x 10mm dia, 2 Nos. 125mm long handles (IS:208),1 No. Rubber / Nylon door stop bushes including labour charges for fixing the shutter to frame etc., including overheads & contractors profit complete for finished item of work (0.8m x 2.1m)

Flushing of Borewell of dia 165/150mm with Power rig at an average pressure of 150 PSI, including Crew charges, completely done to the satisfaction of the department including detachable of all accessories and refix all materials as per the original condition including all labour charges, but excluding cost of materials and excluding taxes etc., completely.