Mtc. Of the Roof of the Academic Building of Gomati District Polytechnic, Fulkumari, Udaipur, Gomati Tripura

Demolishing cement concrete manually / by mechanical means including disposal of material with all lifts and upto 50 m lead etc. complete as per direction of the Engineer- in-charge:- Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for re-plastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc.complete as per direction of the Engineer- in-charge.

Grading roof for water proofing treatment complete as required as per direction of the Engineer-in-charge with : Cement concrete 1:2:4 (1 cement : 2 fine sand : 4 graded stone aggregate 20 mm nominal size)

Providing and applying fibre reinforced elastomeric liquid water proofing membrane with resilient acrylic polymers having Sun Reflectivity Index (SRI) of 105 on top of concrete roof in three coats @10.76 litre/ 10 sqm. One coat of self-priming of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and two coats of undiluted elastomeric waterproofing liquid (dry film thickness of complete application/ system not less than 500 microns). The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-Charge.

Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and as per direction of Engineer-In-charge complete in all respect. Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make

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

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 grams/ litre, of approved brand and manufacture to give an even shade [Payment shall be made after submission of Test Certificate issued by the Manufacturer] :New work ( two or more coats) over and including water thinnable priming coat with cement primer.

Distempering with 1st quality washable acrylic distemper of approved brand and manufacture and of required shade on old work ( one or more coats ), to give an even shade as required complete as per direction of the Engineer in charge.

Providing and fixing on wall face unplasticised - PVC moulded fittings/ accessories for unplasticised Rigid PVC soil, waste & vent pipes conforming to IS : 13592 Type A including jointing with seal ring conforming to IS : 5382 leaving 10 mm gap for thermal expansion: (i) Coupler110 mm

(ii) Bend 87.5°110mm