ADDITION / ALTERATION IN WET CANTEEN (BUILDING NO.82) AT DEFENCE LABORATORY JODHPUR (SPECIAL WORK)

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in charge.Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix)

Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, piers, abutments, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets, sunken floor etc., up to floor five level, excluding the cost of centering, shuttering and finishing: 1:1½:3 (1 cement : 1½ coarse sand (zone-III) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources).

M&L for Screed bed or bedding layer of mortar 10 mm thick for laying floor Finishes in 1:3 cement mortar completed all as specified and directed by Engineer-in-Charge.

(i) Surface prepration : The surface to be treated should be sound and free from all types of dirt, dust and debris. Clean surface by brushing, scraping or chipping to eliminate all defective materials and foreign matter. Proper surface preparation needs dry mechanical grinding to expose base Substrate. Making of angle fillets(75mm*75mm) all around the periphery of the wall with polymer modified mortar using SBR Latex Plus. (ii) Construction joints : All construction joints and cracks >1mm shall be treated by cutting V groove and filling with polymer modified SBR Latex and reinforced with geotextile membrane dipped in PU liquid Membrane before the 1st coat application. (iii) Water proofing membrane : S&F Waterproofing membrane:Supplying and applying water-based ,single component UV resistant elastomeric PU liquid membrane coating applied with brush/roller having SRI >109 with an elongation of >400% and tensile strength of 1.4 MPa as per ASTM D 412, 80 % Solid Content, shore A Hardness of min. 50 as per ASTM D 2240. The system includes final base preparation as per note given below, applying Home Sheild PU ELASTOSEAL BTD or approved equivalent in three coats at 2.8 kg per Sqm providing 1.5 mm DFT , complete as per Manufacturer specifications . Waterproofing membrane to be terminated on parapet wall in a V groove of size 25 mm x 25 mm atleast 300 mm above FFL which should be sealed with Polymer Mortar Complete all as specified and directed. The application will be executed by company authorised applicator upon verification from the company. Make : Berger, Sika, Fosroc.

Providing and fixing tiled false ceiling of specified materials of size 595x595 mm in true horizontal level, suspended on inter locking metal grid of hot dipped galvanized steel sections ( galvanized @ 120 grams/ sqm, both side inclusive) consisting of main "T" runner with suitably spaced joints to get required length and of size 24x38 mm made from 0.30 mm thick (minimum) sheet, spaced at 1200 mm center to center and cross "T" of size 24x25 mm made of 0.30 mm thick (minimum) sheet, 1200 mm long spaced between main "T" at 600 mm center to center to form a grid of 1200x600 mm and secondary cross "T" of length 600 mm and size 24x25 mm made of 0.30 mm thick (minimum) sheet to be interlocked at middle of the 1200x600 mm panel to form grids of 600x600 mm and wall angle of size 24x24x0.3 mm and laying false ceiling tiles of approved texture in the grid including, required cutting/making, opening for services like diffusers, grills, light fittings, fixtures, smoke detectors etc. Main "T" runners to be suspended from ceiling using GI slotted cleats of size 27 x 37 x 25 x1.6 mm fixed to ceiling with 12.5 mm dia and 50 mm long dash fasteners, 4 mm GI adjustable rods with 959 SUB HEAD : 12- ROOFING galvanised butterfly level clips of size 85 x 30 x 0.8 mm spaced at 1200 mm center to center along main T, bottom exposed width of 24 mm of all T-sections shall be pre-painted with polyester paint, all complete for all heights as per specifications, drawings and as directed by Engineer-in-charge.GI Metal Ceiling Lay in perforated Tegular edge global white color tiles of size 595x595 mm and 0.5 mm thick with 8 mm drop; made of GI sheet having galvanizing of 100 gms/sqm (both sides inclusive) and 20% perforation area with 1.8 mm dia holes and having NRC (Noise Reduction Coefficient ) of 0.5,electro statically polyester powder coated of thickness 60 microns (minimum),including factory painted after bending and perforation, and backed with a black Glass fiber acoustical fleece. Note :- False ceilging should be Metallic false ceiling as approved by Engineer-in-charge.

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within 50 metres lead.For thickness of tiles 10 mm to 25 mm

Providing and laying Vitrified tiles in floor in different sizes (thickness to be specified by the manufacturer) with water absorption less than 0.08% and conforming to IS:15622, of approved brand & manufacturer, in all colours and shade, laid on 20 mm thick cement mortar 1:4 (1 cement: 4 coarse sand) jointing with grey cement slurry @3.3 kg/sqm including grouting the joints with white cement and matching pigments etc. The tiles must be cut with the zero chipping diamond cutter only . Laying of tiles will be done with the notch trowel, plier, wedge, clips of required thickness, leveling system and rubber mallet for placing the tiles gently and easily. Double charge vitrified tile polished finish of size SUB HEAD : 11- FLOORING 850 Size of Tile 600 x 1200 mm

Providing and fixing Ist quality ceramic glazed wall tiles conforming to IS: 15622 (thickness to be specified by the manufacturer), of approved make, in all colours, shades except burgundy, bottle green, black of any size as approved by Engineerin-Charge, in skirting, risers of steps and dados, over 12 mm thick bed of cement mortar 1:3 (1 cement : 3 coarse sand) and jointing with grey cement slurry @ 3.3kg per sqm, including pointing in white cement mixed with pigment of matching shade complete.

Providing and laying Vitrified tiles in different sizes (thickness to be specified by manufacturer), with water absorption less than 0.08 % and conforming to I.S. 15622, of approved make, in all colours & shade, in skirting, riser of steps, over 12 mm thick bed of cement mortar 1:3 (1 cement: 3 coarse sand), jointing with grey cement slurry @ 3.3 kg/ sqm including grouting the joint with white cement & matching pigments etc. complete.Size of Tile 600x600 mm

Painting on wooden surfece with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : One or more coats on old work