Upgradation Work of New Primary School Palma under Chalkusha Block. District - Hazaribag

Labour for site clearance and scrapping old paint etc.

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 : 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

Centering and shuttering including strutting, propping etc. and removal of form for Weather shade, Chajjas, corbels etc., including edges.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture 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 650/ 450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. 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 : 3 mm thick.

Dismantling old plaster and pointing in cement or lime and raking out joints to 15mm depth, watering and disposal of unserviceable materials with all leads all complete as per direction of E/I.

Providing 6mm cement plaster (1:4) in celling with clean coarse sand of F.M. 1.5 including screening, curing with all leads and lifts of water, scaffolding taxes and royalty all complete as per building specification and direction of E/I.

Providing 12mm cement plaster (1:6) with clean coarse sand of F.M. 1.5 including screening, curing with all leads and lifts of water, scaffolding taxes and royalty all complete as per building specification and direction of E/I.

E/W in excavation in foundation trenches in ordinary(vide classification of soil item- A )and disposal of excavated earth as obtained to a distance upto 50m including all lifts wuth levelling, ramming the foundation trenches removing roots trees shrubs all complete job as per approved design, buiding specification and direction of E/I.

Earth work in excavation in foundation trenches in hard soil (vide classification of soil item - A+B) and disposal of excavated earth as obtained to a distance up to 50M including all lifts with leveling, ramming the foundation trenches, removing roots of trees, shrubs all complete as perbuilding specification and direction of E/I.

Earth filling in foundation trenches and plinth in layers not exceeding 150mm thick well watered, rammed, fully compacted and finally dressed with earth obtained from excavation of foundation trenches with a lead of 50m and lift of 1.5m all complete as per building specification and direction of E/l.