Public Works Department Tender

Repair to damaged RCC slabs, beams and columns etc for strengthening with cement mortar 1 : 2 in following steps :- Choping losse and cracked concrete to required depth, cleaning the exposed surface of steel and concrete with wire brush and sand papering , cleaning of concrete surface with water as necessary and getting dried.Applying Epoxy primer on the exposed steel bars. Applying Epoxy hardener and resin mix (as per manufectured's specification) on concrete and steel bars with brush. Speading dry cement mortar 1 : 2 mix over epoxy treated wet surface and allow it to dry for one day. Plastering the surface with cement sand mortar 1 : 3 upto depth of 30mm complete. Cure the plastered surface for 15 days, All work including scaffolding etc. complete in all respect.

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3mm thick water proofing membrane, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membran @ 0.40 Itr/sq.mt. by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ltr and viscosity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under Joint strength in longitudinal and transverse direction at 23°C as 650/450N/5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D-5147. The laying of membrane shall be got done through the authorized applicator of the manufacturer of membrane. 3 mm thick

Applying one coat of Cement primer of approved brand and manufacture on wall surface including all scaffolding:

Providing gola 75x75 mm in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 10mm and down gauge) including finishing with cement mortar 1:3 (1 cement : 3 fine sand) as per standard design :

Add Extra for each additional floor over item no 13.30

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer-in-charge. 1: 3: 6 or richer mix.

Plaster on new surface on walls in cement sand mortar 1:4 including racking of joints etc. complete fine finish : 25 mm thick.

Carriage of Building Rubbish Stone Metal, Grit and Ballast etc. including loading and unloading complete with all lead (G-4/4.2.13)

Replacement of stone Chajja with sriwan in damaged portion as per existing thickness and width in CM 1 : 3 with removal of old damaged pieces of chajja including top plaster of chajja and bottom pointing in CM 1 : 3 with scoffolding upto Ground floor level as per direction of Engineer in charge

Providing and fixing double scaffolding system on the exterior side, upto five story made with 4" wooden member 1.5 m c/c horizontal and vertical direction joining with rassi, clamps, challies. The scaffolding system shall be stiffened with bracing, runner, connection of building if necessary with all essential safty features for the workmen etc complete as per direction of EI.The lavation area of the scaffolding shall be measured for payment. The payment will be made once irrespective of duration of scaffolding. Note : This item to be used for maintence work judicially

Painting exterior surface of Wall with 100% acrylic exterior paint of approved brand and manufacture to give an even shade with two or more coats including prepartion of base with sand papering, primer, putty, etc complete in all respect including scaffolding and safety provision New Work

Repair to damaged cement plaster of stone chajja with CM 1 : 3 of required thickness on top & bottom as per existing pattern and making patta etc complete up to three floor level as per direction of Engineer in charge including all necessary scoffolding etc