Rehabilitation work of High and Medium Level of Criticality at Rajasthan High Court Building, Jodhpur

Thorough Inspection of RCC structure by hammer tapping for identifying hollow, delaminated, or defective concrete. The inspection includes systematic tapping on the surface (beams, slabs) to detect hollow sounds or defects, marking the defective areas for further assessment, and providing a summary report with recommendations. Concered areas must be marked. Including movable scaffolding / shuttering, removing & refixing accoustic false ceiling, gypsum ceiling if required and all arrangments required for the above.

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 building 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.

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-Charge 50 mm average thickness

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

Carriage of Building Rubbish ( Lead 10 Km)

Excavation work by mechanical means (Hydraulic excavator) / manual means in foundation trenches or drains not exceeding 1.5 m in width or 10 sqm on plan including dressing of sides and ramming of bottoms lift upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed with a lead in a 50 meter including stacking of useful material if available : For Hard rock

Corrosion inhibitor through nozzle, Inject migrating corrosion inhibitor of Make Fosroc / Sika / MYK Arment / IPSS or equivalant as approved by EIC in all the nozzles fixed in grid fashion through all RCC members. The rate including scaffolding/ working platform/safety nets, drilling and Nozzles. etc. which are required.

Providing and injecting low viscosity Solvent free Epoxy grout of Make FOSROC / IPSS / Monopol of Krishna conchem or MYK Arment ArmGrout inject EP-LV / SIKA & equivalent in the ratio of resin and hardener by grouting pump at a pressure @ 3- 6 Kg/cm2 or as instructed by EIC etc complete. After grouting is completed after 24 hours, cut the nipples and seal it with polymer-modified mortor of Make FOSROC / IPSS / Krishna conchem or MYK Arment / SIKA & equivalentas per specifications given above. Approximate No. of NRV with MS packers Nozzles. Considering 600 x 600 mm grid at honeycomb area and 150 mm c/c along the crack.(depth of drilling should be 200 mm). The rate including scaffolding/ working platform/safety nets etc. which are required/Alcofine microfine cement, cost of drilling and Nipples.

Providing and injecting Cement grout of Make FOsroc/ MYK Arment /SPT / SIKA or equivalent with cement In the ratio as per specifications with grouting pump at a pressure @ 1.5 to 3.5 Kg/cm2 or as instructed by EIC etc complete. After grouting is completed after 24 hours, cut the nipples and seal it with Make Fosroc/ MYK Arment Fis 10/SPT / SIKA or & equivalent as per specifications given above. Approximate No. of Nozzles Considering 600 x 600 mm grid on RCC members and 150 mm C/C along the crack. The rate including scaffolding/ working platform/safety nets etc. which are required/Alcofine microfine cement, cost of drilling and Nipples.

Providing and laying in position Ready mix concrete manufactured in fully automatic Batching Plant and transported to site in transit mixer for having continous agitated mixer, manufactured as per approved mix design of specified grade of RCC work including pumping of R.M.C. from transit mixer to site of laying , exculding the cost of centering, shuttering and reinforcement with all lead and lift including cost of admixtures in recommended portion as per IS 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer in charge. All works upto floor V floor M20 grade Design Mix by using cement as per codal provision.Providing M- 40 grade concrete by using cement as per codal provision instead of M-20 grade design mix.