Water proofing treatment work on roofs and repair of expansion joint treatment work at Kameng hostel in IITG Campus

Amount

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

Water proofing treatment on roof

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

Polysulphide sealant in Expansion joints

(a) Surface preparation: preparing the surface by chipping & cleaning the surface with wire brush and free from all contamination. Wash it thoroughly with high jet water.

(b) Providing and laying of polysulphide sealant after application of priming coat over the prepared surface.

Half brick masonry with common burnt clay F.P.S. (non modular bricks of class designation 7.5 in superstructure above plinth level up to floor V level.

Cement mortar 1:4 (1 cement :4 coarse sand)

Centering and shuttering including strutting, propping etc. and removal of form work for:

Foundations, footings, bases for columns

Restoration work

After surface preparation, proper applications to be done with Dr. Fixit rust remover over the effected bars, after removing the rust from the surface with sand paper wash it throughly and apply Dr. Fixit epoxy zinc primer over the clean bar to regainits thickness. Application polymer coating and polymer modified mortar over the minimum thickness area in case of major affected area apply Dr. Fixit Epoxy Bonding agent over the saturated dry surface as a old and new concrete bonding agent over the entire dismantled surface then apply polymer modified concrete to repair of damage reinforced concrete like beams, slabs etc of apply Dr. Fixit microconcrete where acess is restricted and compaction is not possibe (whwnever necessary)

Reinforced cement concrete work in walls (any thickness), including attached pilasters, buttresses, plinth and string courses, fillets, columns, pillars, piers, abutments, posts and struts etc. above plinth level up to floor five level, excluding cost of centering, shuttering, finishing and reinforcement:

1:1.5:3 (1 cement : 1.5 coarse sand(zone-lll) derived from natural sources : 3 graded stone aggregate 20 mm nominal size derived from natural sources)

steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete above plinth level.

Thermo-Mechanically Treated bars of grade Fe-500D or more.

Kota stone slab flooring over 20 mm (average) thick base laid over and jointed with grey cement slurry mixed with pigment to match the shade of the slab, including rubbing and polishing complete with base of cement mortar 1 : 4 (1 cement: 4 coarse sand):

25 mm thick

Providing and fixing sheet covering over expansion joints with iron screws as per design.

Aluminium fluted strips 2 mm and thick 200 mm wide

15 mm cement plaster on the rough side of single or half brick wall of mix :

1:4 (1 cement: 4 fine sand)

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

NARAYAN DEKA (BID ID -3317889)

M/S MADONA AND CO (BID ID -3318158)