COMPREHENSIVE REPAIR AND MAINT TO OTM ACCN FOR B/R and E/M WORKS NEAR CP-3 UNITS UNDER GE (NORTH) BINNAGURI

Demolition of cement concrete (unreinforced) including existing treatment of any description and in any position not otherwise complete all as specified and directed

M&L for water proofing treatment to sunken floor with the following course of treatment / specification :- (i) Cleaning top surface of floors / slabs and laying 50mm thick (avg) PCC of (1:3:6), 20mm graded stone aggregate (Nominal mix), mixed with WPC as per manufacturer's instruction laid in slope 1:20 towards spouts including coveting corners. (ii) 15mm thick plastering in CM (1:4) on sides mixed with WPC as per manufacturers instruction. (iii) Applying 1st layer of slurry @ 0.488 kg/ sqm mixed with acrylic based polymer modified cementious compound @ 0.253 kg / sqm , this layer shall be allowed to air cured for 4 hrs . ( iv) Applying 2nd layer of slurry @ 0.242 kg/ sqm mixed with acrylic based polymer modified cementious compound @ 0.126 kg / sqm , this layer shall be allowed to air cured for 4 hrs followed with water curing for 48 hrs. (v) Applying a coat of industrial bitumen 85/25 penetration @ 1.50 kg/sqm on plastered and concrete surfaces. (vi) Providing 150 micron thick polyutethene paint in two coats ( each of 75 micron measured dry surface over a coat of PU primer including preparation. (vii) 2 Nos 32mm bore GI medium grade 450mm long spout ,to be provided through external wall to drain out accumulated water. (viii) Sunken floor shall be tested for water tightness by filling water for 72 hrs before and after treatment work is carried out and ensure that no leakage / seepage exists. (ix) Sunken portion shall be filled with lean concrete of (1:5:10) type E-2 (Note : (i)Treatment shall be carried out by authorised applicator approved by the manufacturer., (ii) Only floor area should be measured for payment)

Material and labour for 75mm thick PCC (1:3:6), type C-2(using 40 mm graded crushed stone aggregateplain cement concrete 1:4:8 type D2 using 40 mm graded crushed stone aggregate) as in plinth protection; etc laid in bays/panels not exc. 2.00 Sqm each including construction joints at suitable interval and each corner and filled with bituminous mastic filling (1 partbitumen & 3 part sand) and finished the surface even and smooth without using extra cement complete all as specified.

M&L 75 mm thick PCC as in sube base of floor/paving finised even and rough using type C-2, (1:3:6) 40mm graded stone aggregate all as specified and directed.

Providing and laying 80mm thick factory made chamfered edge cement concrete paver block of M-40 grade with approved colour, design & pattern as in footpath, parks, lawns, drive ways or light traffic parking etc. of required strength, thickness & size/ shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50mm thick compacted bed of coarse sand, compacting and proper embedding/ laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with fine sand and cutting of paver block as per required size and pattern, finishing and sweeping extra sand; complete all as specified and directed.

M&L 300x300x 25 mm thick prepolished chequered tiles set and jointed in neat cement slurry including 15mm thick screed bed in Cement Mortar 1:6 and pointed in white or coloured cement mixed with mixture of pigments to match with the colour of tiles including demolition of existing floor tiles complete all as specified and as directed.

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5 mm), including making drainage opening wherever required complete all as specified and as directed.

Dismantling floor, hearth or wall tiling including cement mortar bedding (but not backing),including removing the rubbish off the premises complete all as specified and as directed.

M&L Vitrified Ceramic tiles light shade 9 mm thick (square/ rectangular) polished, area of each tiles exceeding 0.18 sqm but n.exc 0.36 sqm, in skirting etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match the shade of tiles as in floor over and including cement screed bed / backing layer of 15mm thick in cement mortar (1:6) complete all as specified and as directed. Note:- Design and pattern shall be approved by Engr-in-charge /GE at the time of execution of work.

M&L Vitrified Ceramic tiles light shade 8-9 mm thick (square/ rectangular) polished, area of each tiles exceeding 0.42 sqm but n.exc 1.00 sqm, in floors etc. set and jointed in neat cement slurry and pointed in white or coloured cement to match the shade of tiles as in floor over and including cement screed bed / backing layer of 15mm thick in cement mortar (1:6) complete all as specified and as directed. Note:- Design and pattern shall be approved by Engr-in-charge /GE at the time of execution of work.