Water proofing treatment to T.E building Manifit (BA - Jamshedpur)

Amount

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 :

a) 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).

b) 1:3:6 (1 cement : 3 coarse sand derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources).

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

a) Dowel Columns

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

a) In 75x75 mm deep chase

Making khurras 45x45 cm with average minimum thickness of 5 cm cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate of 20 mm nominal size) over P.V.C. sheet 1mx1mx400 micron, finished with 12mm cement plaster 1:3 (1 cement :3 coarse sand) and a coat of neat cement, rounding the edges and making and finishing the outlet complete.

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.

(a) 110 mm diameter

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for 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.

(a) Bend 87.5° (i) 110 mm bend

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

a) 1:6 (1 cement: 6 fine sand)

15 mm cement plaster on rough side of single or half brick wall finished with a floating coat of neat cement of mix :

a) 1:3 (1 cement: 3 fine sand)

6 mm cement plaster of mix :

a) 1:3 (1 cement: 3 fine sand)

Neat cement punning

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge.

a) With cement mortar 1:4 (1cement: 4 coarse sand).

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the samemembrane manufactured of density at 25°C, 0.87 - 0.89 kg/litre and viscocity 70 - 160 cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :

a) 3 mm thick

Removing deteriorated tarfelt i/c cleaning of roof surface with brushes and finally with a piece of cloth lightly soaked in kerosene oil etc. and removal of rubbish from out side the campus as per direction of E-I-C.

Supplying and providing water proofing material Dr. fixiti, 301 Pedicrete URP or equivalent in cement conrete, RCC, plastering etc. in doses as per manufacturer’s specification.

Cutting tree branches by manual labour for which spread on roof side as per direction of E-I-C.

Removing tree on wall/roof by cutting and providing chemical/ acid, hing and salt to prevent regrowth including cutting and making good the wall etc. as per direction of E-I-C. (Cement concrete & Plaster used for repairing to be paid seperately)

Removing collapsed RCC water tank platform from terrace roof including disposal of rubbish from out side the campus as per direction of E-I-C.

Providing and fixing bamboo scaffolding system on the exterior side, up to four story height with 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, necessary deduction for scaffolding in the existing item to be done.

Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge

50mm average thickness

Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge.

Bars up to 12 mm diameter

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.

SBR Polymer (@10% of cement weight) modified cementitious bond coat @2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer

Reparing of damage RCC walls, columns, pillars,pilasters,string courses, beams, Suspended floors,roofs,landings,Shelves,Chajjas,Lintels, balconies,window sill, Stair cases.vertical and horizontal fins individually or forming box louvers, facias and eaves boards etc.upto floor five level i/c cost of Centering Shuttering with Cement concrete 1:1:2 (1 Cement : 1 Coarse sand : 2 Stone aggregate 12.5 mm to 6 mm nomoial size) and top finishing with 6mm Cement plaster 1:3 (1 Cement : 3 Fine sand) excluding the cost of scaffolding as per direction & satisfaction of E-in-C.

50 mm average thickness of repairing

Deduction for using scaffolding

a) Repairs to plaster of thickness 12 mm to 20 mm in patches

b) Applying bonding coat..

Rishi kumar (BID ID -896571)