GENERAL-Maintenance of RCC Ceiling and allied works of Annex building - Rest House Kollam -Maintenance of RCC Ceiling and allied works of Annex building - Rest House Kollam-General Civil Wor

26.28.2: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-Charge50mm average thickness

OD252368/2024-2025:Applying chemical rust remover to rebars after removing loose rust by mechanical means, such as wire brushing, using sandpaper etc. along with the cost of all necessary materials etc complete.

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

26.32.3:Providing, mixing and applying SBR polymer (of approved make) modified Cement mortar in proportion 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. Note: Measurement and payment: The pre-measurement of thickness shall be done just after the surface preparation is completed and Payment under this item shall be made only after proper wet curing has been done and surface has been satisfactorily evaluated by sounding / tapping with a blunt metal instrument and/or the 75mm size cube crushing strength at the end of 28 days to be not less than 30 N/Sqmm2).50 mm average thickness in 3 layers.

13.7.2:12 mm cement plaster finished with a floating coat of neat cement of mix:1:4 ( 1 cement : 4 fine sand)

OD229518/2024-2025:Finishing roof surface with water proofing Dr.Fixit Roof seal over new priming coat including labour etc all

OD251612/2024-2025:Removing the existing pointed white cement, cleaning and applying silicon sealant in gaps between wall tiles and floor tiles, floor tiles etc complete with all other related cost

13.43.1:Applying one coat of water thinnable cement primer of approved brand and manufacture on wall surface:Water thinnable cement primer

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