Repair and repainting of Corridors of Computer Science Department (H. Block) along with projects lab ((HWS 201, HWS 202, HWS 203, HWS 204, HWS 205, HWS 206, HWS 207, HWS 208, HWS 209, HWS 210, HWS 211 along with lab corridors)

Amount

Roof Waterproofing

Dismantling tile work in floors and roofs laid in cement mortar including stacking material within the campus as directed by Engineer in Charge. For thickness of tiles above 25 mm and up to 40 mm

Providing and laying water proofing treatment on roofs of slabs by applying cement slurry mixed with water proofing cement compound consisting of applying:

(a) after surface preparation, first layer of slurry of cement @ 0.488 kg/ sqm mixed with water proofing cement compound @ 0.253 kg/sqm. (b) laying second layer of Fibre glass cloth when the first layer is still green. Overlaps of joints of fibre cloth should not be less than 10 cm. (c) third layer of 1.5 mm thickness consisting of slurry of cement @ 1.289 kg/sqm mixed with water proofing cement compound @ 0.670 kg/sqm and coarse sand @ 1.289 kg/sqm. This will be allowed to air cure for 4 hours followed by water curing for 48 hours. The entire treatment will be taken upto 30 cm on parapet wall and tucked into groove in parapet all around. (d) fourth and final layer of brick tiling with cement mortar (which will be paid for separately. For the purpose of measurement the entire treated surface will be measured.

Grading roof for water proofing treatment with

(a) Cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size)

Expansion Joint

Expansion Joints Treatment with Sikadur Combiflex System

Step-1. Removal of extra topping between the expansion joint area: Preparation of Expansion Joint edge by grinding and removal of all loose particles, dirt, dust etc to make the surface clean including scaffolding , tools tackles etc all complete Step-2. Providing and Mixing of epoxy adhesive sikadur 31 C (2:1) by mechanical mixture and apply on the 50 mm surface of both sides as per the manufacturer specification including tools, labour, machines etc all complete Step-3. Providing and Fixing of Hypalon based Sikadur Combiflex SG strip (200 mm width x 2mm thickness on the expansion joint as per the manufacturer specification including tools, labour, machines scaffoldings etc all complete Step-4. Finally Providing and Mixing of epoxy adhesive sikadur 31 C (2:1) by mechanical mixture and apply on the 50 mm surface of both sides as per the manufacturer specification including tools, labour, machines etc all complete as a protective coating

Providing and fixing sheet covering over expansion joints with stainless steel screws as per design to match colour/shade of wall treatment -Aluminium fluted strips 200mm wide 2.00 mm thick.

Damp proofing in walls

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

Step-2 Providing and applying Koster Polysil TG 500 / Dr. Fixit or equivalent primer on the prepared surface as per manufacturers specifications, including cost of materials, labour, consumables, tools and tackles, etc., complete.

Step-3 Providing and applying Talrak Flexeal Elastic/ Dr. Fixit Pidicrete URP or equivalent waterproofing coating on the primed surface in two coats, as per manufacturers specifications, including cost of materials, labour, consumables, tools and tackles, etc., complete.

12 mm cement plaster of mix :1:4 (1 cement: 4 fine sand)

Removing white or colour wash by scrapping and sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete

Providing and applying white cement based putty of average thickness 1 mm, of approved brand and manufacturer, over the plastered wall surface to prepare the surface even and smooth complete.

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gram/litre, of approved manufacturer and of required shade and colour all complete to achieve even shade and colour : New work (two or more coats) over and including water thinnable priming coat with cement primer having VOC content less than 50 gram/litre

Applying priming coat: With ready mixed red oxide zinc chromate primer of approved brand and manufacture on steel galvanised iron/ steel works

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture

Finishing walls with Acrylic Smooth exterior paint of required shade

New work (Two or more coat applied @ 1.67 ltr/10 sqm over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm)

Providing and fixing on wall face unplasticised Rigid PVC rain water pipes conforming to IS : 13592 Type A, including jointing with seal ring conforming to IS : 5382, leaving 10 mm gap for thermal expansion, (i) Single socketed pipes

110 mm diameter

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer-in-charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note: - This item to be used for maintenance work judicially, necessarydeduction for scaffolding in the existing item to be done.

Providing gola 75x75 mm in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 (1 cement : 3 fine sand) as per standard design :

In 75x75 mm deep chase

MANTU KUMAR PATHAK (BID ID -3195700)

MAHALAXMI ASSOCIATE (BID ID -3194732)

BRAHMAPUTRA CONSTRUCTION AND CONSULTANCY (BID ID -3195917)

DHIRAJ THAKURIA (BID ID -3195934)

Swastika Teleservices (BID ID -3195912)