Addition/ alteration of retro fitting at Dwarka accn

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height 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. staircase 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 uilding etc wherever required for inspection of work at required locations 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.

Providing, erecting, maintaining and removing temporary protective screens made out of specified fabric with all necessary fixing arrangement to ensure that it remains in position for the work duration as required by the Engineer-in-charge. Wooven PVC cloth

Removing/chipping and cleaning of existing Pebble dash plaster carefully by low impact high frequency hammer without damaging the existing concrete/ Brick work or by control tools etc. and cleaning the exposed concrete surface wth wire brush, water,treatment with biocide if required, complete as per direction and satisfaction of Engineer-in- charge.

Drilling and fixing injection packers in RC members including,Drilling Holes: Drilling 14 mm dia., D/2 mm (or more as per need) deep holes in structural members at the intervals of 350 mm c/c horizontally and D mm c/c vertically in staggered manner at an angle of 45 degree or as per recommendation of manufacturer and direction of engineer in charge.(D is the section thickness) Cleaning of holes: Clean the holes by air blower prior to fixing nozzles. Fixing of Packers: Insert 12 mm dia., 50~75 mm long NRV packers in cleaned holes with structural grade epoxy adhesive like Sikadur-31 or equivalent. Cutting of Packers: Cut the packers by cut of wheel after completion of grouting without damaging structural elements.

Supplying and injecting Low viscous injection grouting epoxy of Fosroc Conbdextra EP-10 or equivalent as per direction of Engineer-in-charge.

Providing and applying plaster with polymer cement mortar (1:4) admix with Fosroc Nitobnond SBR /Sika Latex/AP Smartcare Repair Polymer @ 1-2% of cement and polypropylene fibre@ 100gms/ bag of cement and finish smooth.It should be applying over a neat coat of acrylic based chemical like Nitobond AR of Fosroc/ STP/Sika/BASF or equivalent as a bond coat. Providing hexagonal wire mesh before plaster to control the cracks at all brick & concrete joinery of 12 to 15 mm average thickness.

15 to 25 mm average thickness in 2 layers

25 to 50 mm average thickness in 3 layers.

Providing and applying plaster of paris putty of 2 mm thickness over plastered surface to prepare the surface even and smooth complete

Finishing walls with Acrylic Smooth exterior paint of required shade,New work (Two or more coat applied @ 1.67 ltr/10 sqmover and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

ALL Blocks All Column Strengthening & Retrofitting from Footing Demolishing cement concrete manually/ by mechanical meansincluding disposal of material within 50 metres lead as per direction of Engineer - in - charge.Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Earth work in excavation by manual means over areas (exceeding 2.1 m in depth, 2.0 m in width as well as 10 sqm on plan) including getting out and disposal of excavatedearth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-incharge. At stilt area columns

Demolishing brick work manually/by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge.

Removing/chipping and cleaning of existing Loose/ Concrete or plaster carefully by low impact high frequency hammer without damaging the existing concrete/ Brick work or by control tools etc. and cleaning the exposed concrete surface wth wire brush, water,treatment with biocide if required, complete as per direction and satisfaction of Engineer-in- charge.

Supplying and applying a coats of alkaline rust remover primer of Fosroc Reebacleen RR or Sika rust off 100 or equivalent (Cleaning existing reinforcement with wire/ rotary wire brush, making the surfaces free from loose material, dirt etc. complete) on the rebars, including cleaning the reinforcement , wire brushing to remove loose rust spalls, clean all rust with water as per the recommendation of manufacturer, complete as per direction of Engineer-in-charge.

Providing & fixing Steel reinforcement including straightening, cutting, bending, placing in position and binding with 18 gauge GI wire all complete as site design requirement TMT bars without mixing the grade of reinforcement..

8mm x 80mm

10mm x 100mm

12mm x 120mm Shear Connectors

16mm x 160mm

20mm x 200mm

Centering and shuttering including strutting, propping etc. and removal of form for :( Note :- For pouring micro concrete special water proff shuttering will be used and joint will be sealed with the help of tape & POP putty rate of the shuttering shall be inclusive of all above and nothing Shall be paid extra for making special arrangement for pouring micro concrete in RC members)

Providing and laying microconcrete thickness as per the drawing by consultant on the designated area to the prepared slurry tight shuttering with proper shear connector and bonding agent where ever necessary,The fluid micro-concrete repair material shall be a single component, cement based, Fosroc Renderoc RG/Asiian Paint/ Sika SikaRep micro-concrete or equivalent to which only the site- addition of clean water ( and approved graded coarse aggregates where specified) shall be permitted. The microconcrete shall contain no metallic aggregates, or chlorides and shall be shrinkage compensated in the plastic state.The micro concrete in the flowable consistency should achieve a compressive strength of 50 N/mm2 after 28 days at 30C. The unrestrained expansion shall be between 1 - 4%. The flexural strength shall not be less than 5 N/mm2 @ 28 days. The mixed density of microconcrete shall exceed 2100 kg/m3 at 27C.strictly following manufacturer instruction direction of ENgineer- in-charge. cost including, suppling, laying,labour, mixing.

Curing Compound application by brush/ sprey of High efficiency Polymer based film forming curing agent, Fosroc Concure WB White Std or Sika Antisol or equivalent concrete curing compound is polymer based continuous film forming curing compound and is supplied in various pigmented grades.Clear : Straw liquid curing to a clear film ,Blue : As clear grade but with blue fugitive dye, Specific Gravity : 0.82 - 0.85, When first applied to a fresh cementitious surface the product, forms a continuous,non-penetrating coating.This coating, dries to a form a continuous film which provides a barrier to moisture loss ensuring more efficient cement hydration, improved durability and reduced shrinkage. Finish as per the manufacturer's specification (Including Centering and Shuttering)

Disposal of moorum/building rubbish/ malba/ similar unserviceable, dismantled or waste material by mechanical transport including loading, transporting, unloading to approved municipal dumping ground for lead upto 10 km for all lifts, complete as per directions of Engineer-in-charge.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: 6.1.1 Cement mortar 1:4 (1 cement : 4 coarse sand)

Providing and laying in position ready mixed or site batched design mix cement concrete for plain cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana/Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering and finishing as per direction of the engineer-in-charge; for the following grades of concrete Concrete of M20 grade with minimum cement content of 270 kg /cum

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