REPAIR TO PARAPET, CHAJJA, FACIA AND EXPOSED SURFACES OF STRUCTURE UNDER AGE B/R-I AT MIL STN JAISALMER

M & L for MS props erecting for temporary supports to the structural members like beams, slabs etc. to relieve the load on the members during breaking of damaged concrete, removal guniting, excavation or any dismantling work as per the instruction of engineer in-charge. These supports shall be provided either in the form of props or trestles fabricated using structural steel as per the site requirements complete all as specified and directed by Engineer-in-charge.

M & L for Chipping of slab /columns/ beams/ chajjas/ parapet/ roof projection/ balcony/ staircase and removing loose mortar with chisel hammer without much impact on concrete surface, clean the surface by sand blasting the surface using river sand with minimum of 6 kg pressure at the nozzle or air blow by electric pressure blower by mechanical compressor, cleaning the exposed reinforcement with wire brushes etc and disposal of debris for all lead and lifts,complete all as specified and directed by Engineer-in-charge.

M & L for Cleaning & applying rust remover (Sika rustoff100) in two coats over rusted reinforcement surface and providing anti corrosive coating with two component epoxy based zinc rich primer/Rust passivation Inhibitor coat at the rate of 6-8 sq. mtr/ltr not less than 50 microns dft with Sika friazinc R or equivalent to reinforcement surface as per manufacturer’s instructions including all scaffolding, machinery, tools tackles and clearing of debris complete all as specified and directed by Engineer-in-charge.

M & L Mild steel TMT bars 10mm dia and over, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed by Engineer-in-charge. Note : Additional Reinforcement: Check the diameter of the existing rebars and if the diameter is less than 30% of the original diameter, provide additional reinforcement. Cut 12mm dia bars as main reinforcement to the required length with proper development length. Tie them to the prefixed shear connectors so that the additional rebar acts monolithically with the existing ones and core concrete.

M & L Mild steel TMT bars 5mm dia and over upto and including 10mm dia in stirrups, spacers and binders , cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed by Engineer-in-charge. Note : Additional Reinforcement: In the case of the shear reinforcement also, if the diameter of the rebars are reduced, provide 8mm dia stirrups in the form of 2 "U" shaped bars. Tie them properly so that it has a tight contact with the main bars.

M & L for Hard drawn steel wire fabric n exc 4Kg/Sqm cut to lengths, bent to shape required and tying with and including mild steel wire (annealed) not less than 0.9mm in dia supplied and fixed in reinforcement complete all as specified and directed by Engineer-in-charge.

M&L for providing leak proof shuttering in any position cut to length and providing including runners supports as per manufacturer’s instructions and including all necessary scaffolding, machinery, tools tackles and men materials complete all as specified and directed by Engineer-in-charge.

M&L for providing Sikacrete®-145 IN is factory designed pourable, shrinkage compensated, free flowing and self-compacting superior performance microconcrete with selected cement, aggregate and other chemicals. Recommended water and coarse aggregate maximum 15% of bag to be added at site as per manufacturer instruction. Product should strictly meet the requirement of Compressive strength @28 days ~50 N/mm2 (ASTM C109)/ Flexural strength @28 days ~7 N/mm2 and Tensile adhesion strength @≥ 2 N/mm2 (28 days, +30 °C) (EN 1542) or as per manufacturer instructions and mixing concrete with mechanically electrically operated mixer machine etc complete all as specified and directed by Engineer-in-charge.

M&L for rendering 15 mm thick on concrete surface in cement mortar 1:4 including water proofing compound and finished even & smooth without using extra cement complete all as specified and directed by Engineer-in-charge. Note : WPC to be paid separately under item Ser No 13 as supply only.

M&L for rendering 20 mm thick on concrete surface, roof top surfaces in cement mortar 1:4 including water proofing compound and finished even & smooth without using extra cement complete all as specified and directed by Engineer-in-charge. Note : WPC to be paid separately under item Ser No 13 as supply only.