Public Works Department Tender

4.8 :- Providing and laying six course damp proof treatment in basement, sump, reservoir etc. consisting of first, third, fifth course of blown type petroleum bitumen of IS grade 85/25 hot @ 1.6kg/ sqm and 2nd & 4th course of self finished bitumen tar felt with priming coat with bitumen solution applied at the rate of 0.25 litre per sqm and sixth and final course of stone grit 6mm and down pea sized gravel spreaded at 0.008 cum per sqm including preparation of surface by grouting cracks, providing C.C. fillets, rounding of corners and cleaning and drying of the surface before priming coat is applied complete. 4.8.1 :- With bitumen felt of type 2, grade 2 (Fibre base) in 2nd and 4th course.

4.22 :- Providing Water proofing treatment over Roof, Wall, Chhajjas, Balcony with Diamond Shield and Sealer coat or equivalent at leakage/ seepage area consisting of the operation: (i) Surface preparation roughening of surface, opening of cracks in ‘V’ groove in size of 5mm x 10m (WxD), filling of cracks with putty of Diamond shield 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 diamond shield or equivalent compound (having two component dry powder 80% Chemical 20% (chemical having 30% solid contents) making flexible waterproof and protective modified mortar with minimum thickness 70-80 micron after proper mixing of both the parts of compound along with laying of fiber glass mesh (of weaving size of 10x10 yarn/inch duly coated with alkaline resistant polymer). Allow the coating to set in natural air for minimum 2 Hrs. After 1st coat apply 2nd coat with minimum thickness 100 micron of the same compound. Allow the 2nd coat to set in natural air for minimum 4 Hrs. Total consumption of the diamond shield or equivalent in both coat should be @ 17.90 kg for 10sqm area. (iii) Over the above layers providing and applying 1st coat of sealer compound (Single component High Build elastomeric, flexible, pure acrylic waterproofing membranes having solid content of 65%) minimum 50-60 micron and allow it to set in natural air for minimum 2 Hrs. After 1st coat apply 2nd and final coat 120-140 micron of sealer compound and allow it to set in natural air for minimum 4 Hrs. Consumption of Sealer compound should be @ 5.40 kg per 10 sqm area. The final area appearance of the coating will be milky white. (iv) The treated area should be cure with water for 48 hrs by flooding the surface. All above operations to be done in order.

Repairs to plaster in patches of area 2.5 sq. metres and under including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls with cement mortar 1:4 (1 cement : 4 fine sand) complete including disposal of rubbish to the dumping ground within 50metres lead : 17.1.1 :- Thickness upto 15mm

17.1.2 :- Thickness more than 15mm and upto 20mm

14.12 :- Applying one coat of cement primer on wall surface (applied @ 0.80 litrs/10 sqm) complete.

14.13 :- Providing and applying 2mm thick ready mix exterior grade approved make putty (like Birla wall care, Alltek Superfine W/R of (NCL), Asian, ICI, Nerolac, J.K. wall putty) on walls to make the surface smooth and even.

14.11 :- Wall painting with acrylic luxury emulsion (plastic) paint of required shade to give an even shade. 14.11.1 :- On new work (two or more coats)

16.41 :- Dismantling precast concrete or stone slabs in walls partitions etc. including stacking within 50 M lead. 16.41.1 :- Thickness up to 38mm

16.43 :- Demolishing cement concrete including disposal of material within 50 metre lead. 16.43.1 :- 1:4:8 or leaner mix

3.2 :- Providing and laying nominal mix reinforced cement concrete with crushed stone aggregate using concrete mixer in all works upto plinth level excluding cost of form work. 3.2.1 :- 1:1½:3 (1 cement : 1½ coarse sand : 3 graded stone aggregate 20mm nominal size).

3.12 :- Providing and placing in position reinforcement for R.C.C. work including straightening, cutting, bending, binding etc. complete as per drawings including cost of binding wire in foundation and plinth all complete: 3.12.1 :- Thermo-Mechanically treated bars FE 415

11.2 :- Providing and making 12mm thick cement plaster of mix: 11.2.2 :- In Cement Mortar 1:4 (1 cement : 4 fine sand)

11.5 :- Neat Cement punning.

Sub Engineer