Repair and water proofing treatment of part terrace slab at Second Floor and damaged RCC gutter to restrain rain water seepage in Old CTO Building Jabalpur. MP

Amount

Extra for providing and mixing water proofing material in cement concrete work in doses by weight of cement as per manufacturer’s specification.

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

163 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.

110 mm bend Bend 87.5°

163 mm bend Bend 87.5°

110 mm Shoe Shoe (Plain)

Cement plaster 1:3 (1 cement: 3 coarse sand) finished with a floating coat of neat cement.

12 mm cement plaster

Finishing the surface with 20 mm thick jointless cement mortar of mix 1:4 (1 cement :4 coarse sand) admixed with water proofing compound conforming to IS : 2645 and approved by Engineerin- charge including laying glass fibre cloth of approved quality in top layer of plaster and finally finishing the surface with trowel with neat cement slurry and making pattern of 300x300 mm square 3 mm deep. The Operation include cleaning on under surface with wire brush and raking joints and repaing damaged brickbats with new one.

The whole terrace so finished shall be flooded with water for a minimum period of two weeks for curing and for final test. All above operations to be done in order and as directed and specified by the Engineer-in-Charge :

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.

Disposal of building rubbish / malba / similar unserviceable, dismantled or waste materials by mechanical means, including loading, transporting, unloading to approved municipal dumping ground or as approved by Engineer-in-charge, beyond 50 m initial lead, for all leads including all lifts involved.

Grading roof for water proofing treatment with

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

Repair of water dampness/leakage in sunken/ plain/horizontal/vertical portion of roof slab, wall etc over terrace by applying cement slurry mixed with water proofing compound of pidilite URP 301 or equivalent consisting of following operations : (a)surface cleaning/scrapping by applying coir brushes etc including removal of all loose partical,dirt,dust,algae from damaged surface by manually. (b)the cracks in joints or else to be widen upto 5mm including removing all loose materials and clean the entire area by water.(c)remove the damaged/swelled portion of plaster and clean the surface before plastering. (d)after surface preparation, mix the cement slurry and URP301 or equivalent compound, in the ratio of 1 kg of URP301 with 1.5 kg of cement without using water and then applying/filling in the crack properly.This layer will be allowed to air cure for 4 hours.

(e)after drying the all above, applying Ist coat of cement slurry and URP301 or equivalent compound, in the ratio of1 kg of URP301 with 5 kg of cement without using water with brush over the repaired portion. (f)after proper drying time applying the second coat of cement slurry and URP301 or equivalent compound, in the ratio of 1 kg of URP301 with 5 kg of cement without using water with brush over the Ist coat.the all above operation shall be carried out in all respect as per the direction of Engineer-in-Charge. (For the purpose of measurement the entire treated surface area will be measured.) (The contractor shall furnish Guarantee Bond in the enclosed format. The Guarantee Period shall be for 5 (Five) years)

M/s K.K.Sutrakar (BID ID -845344)