GROUTING, POLISHING, POINTING AND SECURING TO STONE MASONRY OF HERITAGE BUILDINGS AT INHS ASVINI

M&L for gently cleaning the buffing surface of stone masonry walls with high pressure nozzles with controlled water misting and pH-balanced mild surfactants as specified for surface and joint areas to remove surfaces dirt/grit,algae, and other foreign deposits without damaging the natural texture, finish, or integrity of the stone complete all as specified and directed by Engr-in-charge.

M&L for Grouting/injecting in stone masonry wall joints with cement based epoxy grouts mixed with chemical based materials(as directed by Engr-in-charge) of high strength for specific applications to improve structure stability of loose or deteriorated stone and mortar joints. The execution shall be carried out as per the following procedure and all as specified and directed by the Engineer-in-Charge:- (i) Before application, clean and prepare the masonry joints by removing all loose material, dust, debris, and deteriorated mortar. (ii) Grouting area will be sealed properply with necessary chemicals or epoxy polymers (as directed by Engr-in-charge) to reducing water infiltrations and potential damages. (iii) Drill the particular area as directed and insert the silicone nozzoles(make/dia and length will be as directed by Engr-in-charge) upto required depth as per site requirement. (iv) Mix epoxy grout with hardener/resin/adhesive chemicals according to specifications as directed by Engr-in-charge to ensure suitable consistency and inject grout into joints, using low pressure method to avoid damage and allow grout to cure, following manufacturer instructions or directed by Engr-in-charge. (v) After application fill the joints properly with leakage proof gout and done pointing accordinly as existing.

M&L for applying water resistance and High shine stone polish of make approved by Engr-in-charge on stone masonry walls surfaces of buildings with help of clean soft cloth and allow to dry and after that buffing the applied area with cotton/wool etc pads attached with buffing machine complete all as specified and directed by Engr-in-charge.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided for and removing debris out side MD land. Note: The place of disposal shall be find out by the contractor.

Taking down cement plaster of any description and in any position including raking out joints, hacking for key, scrubbing down with water, etc Including removal of debris out side MD land complete all as specified and directed.

M&L for rendering 25mm thick Ready Mix plaster (1:4) in vertical walls of stone masonary with 3% water proofing compound @ wt of cement complete all as specified and directed by Engr-in-charge.(WPC will be measured and paid seperately). Note:- (i) The plaster should be carried out in two layer first layer should be 15mm finished with brush mark and the second layer of 10mm thick plaster. (ii) After finishing the first layer it should be curing for minimum next 07 days before applying the second layer of plaster and applying second layer of plaster same curing process will be follow as intial one.

M&L for rendering 10mm thick Ready Mix plaster (1:3) finishing with "Instant Neeru" of Ultra- Tech brand or equivalent on faces of concrete surfaces in ceiling complete all as specified and directed by Engr-in-charge

M&L preparation of new plastered surface and applying two coats of Distempering (over a coat of 1-2mm putty of approved make) with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 gms/litre, of approved manufacturer, of required shade and colour complete, as per manufacturer's specification.

M&L for preparation of new plastered surface of ceiling and applying two coat of white wash complete all as specified and directed by Engr-in-charge.

M&L for carefully Dismantling structural steel work from ceiling of old heritage slabs of buildings upto ht of 7-10mtrs by suitable cutting equipments without damage the existing or surrounding area of walls and floors of buildings including doors, gates but excluding framed truss etc complete all as specified and directed by Engr-in-charge.

M&L for providing 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 Engr-in- charge.

M&L for providing Hard drawn steel wire fabric exc 4.00 kg/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 reinforcemnt complete all as specified and directed by Engr-in- charge.

Supply and fixing Joist, channel, angle, or tee sections, fixed independently, without connecting plates, etc. (cut to ordinary lengths i.e. within 20mm of the length indicated) complete all as specified and directed by Engr-in-charge.

Supply and fixing Rolled sections as in main and cross beams, hip and jack rafters; purlins where connected to common rafters and running rails and guides for sliding doors; fixed with angle cleats or other connecting plates complete all as specified and directed by Engr-in-charge.

Supply and fixing Mild steel Plates (plain or chequered) channels, square cut or notched (ordinary and counter sunk) forming holes, complete all as directed and specified by Engr-in-charge.

M&L for laying nominal mix concrete of M-20 grade mix with 12.5mm size graded coarse aggregate in slabs of heritage buildings which supported on structural members complete all as specified and directed by Engr-in-charge.

Demolition of cement concrete reinforced(reinforced cut as required to facilitate demolition) roofs,floors(other than ground floor),beams,slabs,staircases,landing,chajjas and similar suspended work complete and removing debris out side MD land. Note: The place of disposal shall be find out by the contractor.

M&L for laying Reinforced cement concrete Type B0 1:2:4 (12.5mm graded aggregate) in Slabs supported on walls, beams and columns in floors, roofs, landings, balconies, canopies, deck slabs and in shelves and the like complete all as specified and directed by Engr-in-charge.

M&L for preparation of new or previously untreated steel surface of any description over 10cm in width or girth not otherwise described and applying two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed by Engr-in-charge.

M&L for preparation of old painted steel surface with taking down all rust with wire brushing through manually or mechanically and make surface clear from all types of weather immunities of any description over 10cm in width or girth not otherwise described and applying two coat of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed by Engr-in-charge.

M&L for Drilling and fixing Rohibb Teflon nozzles in RCC members, including drilling holes of 12mm dia, 50 to 100mm deep holes in structural members at the intervals of 75 cm center to center at 45 degree in staggered manner or as directed by Engr-incharge in RCC structural element. Work shall be carried out as under :- (i) Cleaning of holes. Clean the holes by air blower prior to fixing nozzles. (ii) Fixing of nozzles. Insert 12mm dia. Rohibb Teflon nozzles in cleaned holes.External end of nozzles to be machine to receive outlet of grouting gun.Fix it inside the holes by applying thixotropic epoxy putty to ensure complete sealing. Cure the system for min.12 hrs. (iii) Cutting of nozzles. Cut the nozzles by chisel after completion of grouting without damaging structural elements.

M&L for Injecting of site cement slurry grout, in the ratio 1:2 (1- Cement, 2-water) including super plsticizer (Supercom-100) 250 ml/50 Kgs. Mixing shall be done by mechanical mixer continuously stirring mechanically to keep cement particles in suspension. Injection of approved/specified grout by means of pump at a pressure of 0.5 Kg/cm2 etc complete till the grout mix flows out from the nozzle indicating complete filling of grout in the holes drilled. (for repair to slab)

Supply only integral water proofing compound.

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