SPL REPAIR TO OFFRS LIVING ACCN BLDG NO NP-174 AND OR MD ACCN BLDG NO T-241 AT MES DHARAMPORE COLONY AT KANCHRAPARA MIL STN UNDER GE BARRACKPORE

M&L for anti termite treatment of soil under existing floors using emulsion @ one litre per hole, 300mm apart including drilling and plugging 12mm dia holes with cement mortar 1:2 (1 cement: 2 coarse sand) to match the existing floors etc complete all as specified and as directed.

M&L for providing and injecting chemical emulsion for Post Constructional Antitermite treatment along external wall where the apron is not provided using chemical emulsion at the rate of 7.5 litres per sq.m of the vertical surface of the sub-structure to a depth of 300mm including excavating channel along the wall and rodding etc. etc complete all as specified and as directed.

Demolition of plain cement concrete in ground floors and pavings not exceeding 15 cm thickness (below or above ground level) complete all as specified and as directed.

Demolition of plain cement concrete in ground floors and pavings exceeding 15 cm thickness (below or above ground level) complete all as specified and as directed.

M&L for hard core with broken bricks of gauge not exc 63 mm, deposited , spread and levelled in layers n. exc 15 cm thick, watered and rammed to a true surfaces complete all as specified and as directed.

M&L for 75 mm thick PCC 1:4:8 type D2 (using 40mm graded crushed stone aggregate) as in sub base complete all as specified and directed.

M & L for 75mm thick PCC 1:3:6, type C2 (using 40mm graded crushed stone aggregate) as in plinth protection, etc finished the surface even and smooth without using extra cement including provision of joint of size 10 mm wide & 10 mm deep and filling with bitumen mastic joint filling at every 3m length and at corners complete all as specified and as directed.

M & L for 25mm thick PCC 1:2:4, type B0 using (12.5 mm graded crushed stone aggregate) as in floors to receive tiles complete all as specified and as directed.

Taking down all existing roof treatment and demolition of cement concrete padding/levelling course (any thickness as available in site) including wire brushing and cleaning loose dust etc from surfaces of RCC roof including flashing and junction of parapet complete all as specified and as directed.

M&L for applying two component structural grade Shorter Chan Nano Base and Catalyst based polymer modified reinstatement mortar, where local spalling has taken place or shuttering is not possible. The mortar can be applying in layers not exceeding 6mm thick in each layer in and upto any thickness in smaller vertical pockets and upto any thickness in horizontal applications. The mortar should have a minimum compressive strength 12N/mm2 in 1 day and 45N/mm2 in 28 days. Minimum flexural strength should be 8 N/mm2 in 28 days. A modified styrene butadiene emulsion for use as a bonding aid and gauging liquid for cementitious system to be mixed with cement slurry before the application of modified polymer mortar. The bonding agent should have minimum compressive strength 24N/mm2. Minimum tensile strength 3.5N/mm2, minimum flexural strength 6.5N/mm2 upto 25 mm average thickness complete all as specified and as directed. Note : Surface area shall be measured and paid for each 6mm thick layer