CHR GP 168/2024 Vennicode anganwadi samskarika nilayam maintenance

Amount

Anghanvadi Maintenance

26.28.3:Chipping of unsound/weak concrete material from slabs, beams, columns etc. with manual Chisel and/ or by standard power driven percussion type or of approved make including tapering of all edges, making square shoulders of cavities including cleaning the exposed concrete surface and reinforcement with wire brushes etc. and disposal of debris for all lead and lifts all complete as per direction of Engineer-In-Charge25 mm average thickness

15.56:Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 metres lead.

26.29.2:Cleaning of reinforcement from rust from the reinforcing bars to give it a total rust free steel surface by using alkaline chemical rust remover of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly washing with water and allowing it to dry, all complete as per direction of Engineer-In-Charge.Bars above 12 mm diameter

OD58718/2023-2024:Cleaning of reinforcement from dust from tha reinforcing bars to give it a total rust free steel surface by applying a coat of passivating zinc rich primer,CERA ZINC ZR OR LIKE of approved make with paint brush and removing loose particles after 24 hours of its application with wire brush and thoroughly wasing with water and allowing it to dry,all complete as per direction of engineer-in-charge.bars upto 12 mm diameter

26.35.1:Providing and injecting approved grout in proportion recommended by the manufacturer into cracks/honey-comb area of concrete/masonry by suitable gun/pump at required pressure including cutting of nipples after curing etc. complete as per directions of Engineer-in-Charge.<br> (The payment shall be made on the basis of actual weight of approved grout injected.)Stirrer mixed Acrylic Polymer of approved make @ 2% of weight of cement used) modified Cement slurry made with non shrink compound in concrete/ RCC work

5.9.5:Centering and shuttering including strutting, etc. and removal of form for:Lintels, beams, plinth beams, girders bressumers and cantilevers

26.31.1:Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.SBR Polymer (@10% of cement weight) modified cementitious bond coat @2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer

26.31.2:Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect.Epoxy bonding adhesive having coverage 2.20 sqm/kg of approved make

OD76676/2023-2024:providing,mixing and applying SBR polymer 9of approved make) modified cement mortar in propotion of 1;2(1cement:2graded coarse sand with polymer minimum 2% by wt of cement used) add fibre @900 gm/m3 of cement mortar as per specificatios and direction of engineer in charge.NOTE measurement and payment;the pre measurement of thickness shall be done just after the surface preparation is completed aand payment under this item shall be made only after proper wet curing has been satisfactorily evaluated by sounding/taping with a blunt metal instrument and /or the 75mm size cube crushing strength at the end of 28days to be less than 30N/sqmm2 25mm average thickness in 2 layers.

OD77691/2023-2024:providing,mixing and applying SBR polymer (of approved make)and crystalline integral modified cement mortar in propotion of 1:4 (1 cement 4 graded coarse sand with polymer minimum 2% by wt of cement used)as per specifications and directions of engineer in charge

5.22.6:Steel reinforcement for R.C.C work including straightening, cutting, bending, placing in position and binding all complete upto plinth levelThermo - Mechanically Treated bars of grade Fe-500D or more

OD76585/2023-2024:Applying ferrocement with hexagonal wire mesh of wire spacing of 20mm in one layer with a skeletal steel of 8mm dia. wherever necessary at a spacing of minimum 200mm c/c in both directions with rich cement mortar of mix 1:3, by volume, with SBR polymer minimum 2% by wt.of cement used, superplasticiser-cum-bipolar corrosion inhibiting admixture @ 0.80% by weight of cement and polypropylene construction fiber @ 0.2% of weight of cement finishing the face with neat cement, curing, etc. complete as per the specifications and directions of site engineer in-charge - 25mm thick (steel reinforcement to be measured and paid separately)

OD58721/2023-2024:micro concreting using high strength non shrink pourable/pumpable grout with 10mm down size aggregate with water binder ratio 0.135

13.1.2:12 mm cement plaster of mix:1:6 (1 cement : 6 fine sand).

14.72:Providing and fixing double scaffolding system (cup lock type) on the exterior side, upto seven story hight made with 40 mm dia. M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staricase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after. The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required location with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in Charge. The elevational area of the scaffolding shall be measured for payment purpose. The payment will be made once irrespective of duration of scaffolding. Note:- This item to be used for maintenance work judicially, necessary deduction for scaffolding in the existing item to be done .

OD79335/2023-2024: Consolidating and stabilizing the soil around and under the foundation of the building by excavating to the required depth and refilling layer by layer using cement, organosilane nano chemicals, polymers and non shrink chemicals and adding sufficient quantity of water to make the mix flowable and then applying the grout by gravity or by using a suitable pump to the refilled earth.

G SURENDRAN NAIR

RAVEENDRAN NAIR S

Bidder Name

G SURENDRAN NAIR

PRADEEP

RAVEENDRAN NAIR S