Repairing of Cable Trench, Construction of CB steps and Waterproofing work of Control Room at 400 KV S/s Katni.

400 KV S/s Katni

14.64, 3013262. Chipping, Removing, Carefully loose plaster and Concrete work by low impact Hammer, Breaker without damaging the structure as Instructed by Engineer-in-Charge.

22.22, 3014527.Water proofing treatment over Roof, Wall, Chajjas. Balcony with fibre glass mesh and Sealer coat at leakage/ seepage area consisting of (i) Surface preparation roughening of surface, opening cracks in 'V' groove in size of 5mmX10mm (WXD), filling of cracks with putty with laying fiber glass mesh, Cleaning of surface by scrubbing with steel wire/Nylon brush. Removing all dust particles and washing with adequate water to clean completely. (ii) Providing and applying 1st coat of fibre glass mesh (minimum thicknes 70-80 micron) and two component flexible waterproof and protective modified mortar, dry powder 80%chemical 20% acrylic resin having 30% solid contents) with mix proportion of part 1 and 2 with proper mixing with laying of fiber glass mesh (of weaving size of 10X10 yarn/inch duly coated with alkaline resistant polymer). Allow the coating to air cure for minimum 2 Hrs. After two hours of 1st coat applying 2nd coat (minimum thickness 100 micron) of fibre glass mesh of with mix proporation of part 1 and 2 with proper mixing. Allow the coating to air cure for minimum 2 hrs. Consumption of two component should be acrylic resin @17.90 kg for 10 sqm area or as per manufacture instructions. (After two coats of diamond shield, surface is to be cured properly minimum for 4 hrs. before application of third coat). (iii) Providing and applying 1st coat of sealer coat 50-60 micron (single component Hight build elastomeric, fixable pure acrylic waterproofing membrane having solid content of 65%) and allow it to air cure for 4Hrs.minimum. After two hours minimum of 1st coat applying 2nd and finals coat 120-140 micron of sealer coat and allow it to air cure for 4 Hrs mimimum. Consumption of Sealer coat should be @ 5.40 kg per 10 sqm area. (iv) The treated area should be cure with water for 48 hrs. by flooding the surface. (v) The final appearance of the coating will be milky white. All above operations to be done in order.(five years guarantee)

2.6, 3011472. Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30cm in depth. 1.5m in width as well as 10 sqm on plan) including dressing of sides and ramming of bottom disposal of excavated earth, lead up to 50m and lift up to 1.5m, disposed earth to be levelled and neatly dressed. (No extra lift is payable if work is done by mechanical means) All kinds of soil

4.1.2.3, 3011580 "Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work upto plinth level :..With 40mm nominal size graded stone aggregate..M-7.5 Nominal Mix -1 Cement : 4 sand : 8 graded stone aggregate...."

4.3.1, 3011589. "Centering and shuttering including strutting, propping etc. and removal of form work for :..Upto plinth: Foundations, footings, bases for columns, plinth beams, curtain walls, columns below plinth."

4.2.1.2, 3011584. "Providing and laying cement concrete in retaining walls, return walls, walls (any thickness) including attached pilasters, columns, pillars, posts, struts, buttresses, string or lacing courses, parapets, coping, bed blocks, anchor blocks, plain window sills, fillets etc. upto floor two level, excluding the cost of centering, shuttering and finishing :..With 20mm nominal size graded stone aggregate..M-20 - Grade concrete."

5.16.6, 3011694 "Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding including cost of binding wire all wastages and overlaps, couplers (overlaps shall be provided as per requirement of IS 13920 for ductile detalingIS 456 RCC Design & SP 34 Reinforcement detailing ) etc. complete . (Note:- 1. Spacer bars (chairs) shall be paid separately as shown in the drawing and as per direction of engineer in charge. 2. No extra payment shall be done for overlaps and/or couplers. 3.Couplers shall be conforming to IS code on "Reinforcement Couplers for Mechanical Splices of Bars for Concrete Reinforcement - Specification")..Thermo-Mechanically Treated bars.FE 500 D or more conforming to IS 1786.."

4.3.3, 3011591. "Centering and shuttering including strutting, propping etc. and removal of form work for :..Above plinth: Columns, pillars, posts and struts."

308NSOR, 3018353, Chequered plate cover for cable trench C Type Construction of civil work as per standard drawings and details mentioned in SMB vide page No. Vol-II/P-67