Spl repair to roof treatment work of bldg No P-42A Or Mess and P-57 Coy HQ Of 312 network signal Coy (31 NSR) and other sanction works under AGE B/R-II Of GE (EAST) Jalandhar Cantt

Demolition of brick tiles single layer as in roof covering, complete all as directed by Eng-in-charge.

Demolition of mud in roofs any thickness including plastering and leeping (whether full thickness removed or only a part thereof), complete all as directed by Eng-in-charge.

M&L for PCC (1:2:4) type B-0 (using 20mm graded crushed stone aggregate) as in benching, roof padding, roof kerbs or mud stops, coping etc rounded or chamfered on edges, complete all as specified and as directed.

M&L for 10mm thick cement plaster in cement mortar (1:3) mixed with integral water proofing compound in the proportion recommended by manufacturer, on concrete roof surfaces finished even and fair, including cleaning the roof top by scraping down with water etc, complete all as specified and as directed. (WPC shall be measured and paid separately under appropriate item of this BOQ).

Cleaning the surface and made free of dirt, foreign particle, laitance followed by grinding all all protrusion to make surface modulated. Thereafter, inspection for cracks on the surface caused by thermal expiation contraction. Cutting the grooves with suitable cutter machine in V-groove filled with repairs mortar/ microconcrate/ general purpose grout as recommended proportionally as per recommendation of manufacture. Making of Gollas at all the corners with polymer modified mortar (1:4) cement sand with 3.5% acylic of cement weight, complete all as directed by Eng-in-charge.

Supply and applying high build elastomeric waterproofing coating based on pure hydrophobic polyurethane cold applied of spray/brush applied, membrane with an elongation of 280% and tensile strength of 2.7N/mm2 as per ASTM D 2370, crack bridging ability of 3mm, no leakage upto 5 bars of water pressure as per DIN 1048, min 88% solid content. The system includes final base preparation, epoxy primer 1:1 (Resin; harder) application with 100% water dilution and Pure polyurethane application in 2 coats with a total min consumption of 1.25 kg per Sqm. Application should be done with Graco sprayer by a company authorised applicator”, complete all as specified and as directed.

Demolition of brick work as in walls/parapet wall,s removing grass fungus weed, roots of trees completely, grown on roof/wall surfaces, complete all as directed by Eng-in-charge.

M&L for brick work with sub class 'B' old size bricks straight or curved on plan exc 6 M mean radius built in CM (1:6), complete all as specified and as directed.

Taking down cement plaster of any description thickness including raking out joints hacking for key scrubbing down with water, complete all as directed by Eng-in-charge.

M&L for 15mm thick cement plaster on brick or concrete surfaces in cement mortar (1:4) mixed with integral water proofing compound in the proportion recommended by manufacturer, surfaces finished fair and even, complete all as directed by Eng-in-charge. (WPC shall be measured and paid separately under appropriate item of this BOQ).