Conservation And Restoration Of Bandra Fort-Phase 2- Mumbai- 1 Clearing grass and removal of rubbish up to a distance of 50 metres outside the periphery of the area . 2 Removal of plants/ficus grown by pulling out root system embedded in masnory, cutting stem and application of high/gur/lime formulation as specified by the Architect or other patented chemical biocide treatment such as biocideGlycel (isoproplaminesaltofglyphosate) or other chemical as specified by the Engineer in charge etc. complete. 3 Dismantling stone slab flooring laid in cement mortar including stacking of serviceable material and disposal of unserviceable material within 50 metres lead. 4 Removing rich mix cement concrete including stacking the spoils as directed with all leads, lifts etc, complete. 5 Removing the existing cement plaster of any thickness without causing dust nuisance and stacking the debris upto a distance of 50 metres or spreading in the compound and cleaning the site etc. complete. 6 Dismantling stone masonry in lime or cement mortar including stacking the materials as directed with all leads, lifts etc. 7 Removing wire fencing with iron/C.C. fencing post and stacking the materials as directed with all leads, lifts etc. complete. 8 Removing iron pipe raling having wooden, R.C.C. or C.C. or iron post and stacking the materials as directed etc. complete. 9 Loweringdowncarefullyexistingstonemasonryofthemonumentmanuallyinproperorder including shifting the stone elements up to a distance of 50 meter beyond the monument area and stackingthemasdirectedby Engineerin-charge, removingbuilding rubbishandcleaning thesite etc. complete. 10 Excavation for foundation in Hard murum including removing the excavated material upto a distance of 50 metres beyond the building area and stacking and spreading as directed, dewatering, preparing the bed for the foundation and necessary backfilling, ramming, watering including shoring and strutting etc. complete. (Lift upto 1.5 to 3.0m.) By Manual Means 11 Providing soling using 80 mm size trap metal in 15 cm. layer including filling voids with Crushed sand/grit, ramming, watering etc. complete. 12 Providing and laying cast in situ 1:2:4 Lime Concrete of trap/ granite/ quartzite/ gneiss metal for foundation and bedding as per detailed specifications and drawings or as directed including bailing out water, centring, formwork, laying / pumping, compacting, roughening them if special finish is to be provided, finishing if required with fine aggregate, preparing the lime mortar in lime miller and then mixing with coursed aggregate in drum mixer as per specifications including bailing out water, watering etc. complete. 13 Scientific debris clearance (Archaeological Excavation) to be done manually as per Archaeological principals using sieve as per the direction of the conservation architect / engineer incharge / techinical Assistant of the department if required, all antiquities and historic remains to be classified and documentated photograhphically before numbering and storing them in the office. 14 Providing/Re-setting Un-coursed Rubble Masonry of reuse-stones in lime mortar 1:1½, in superstructure as per detailed specifications and drawings or as directed including the stones shall be carefully laid so as to break joints, no joint shall exceed 12.5 mm. (½″) in thickness, every stone shall be set flush in mortar, the face stone shall be for greater size, and good beds, one through stone shall be inserted at least every 0.80 sq. mete (1 square yard), the joints shall be racked out carefully at least 25 mm. (1″) where pointing or plastering to be done, striking joints where no pointing or plastering is to be done, preparing the lime mortar in lime miller, scaffolding, watering and all masonry work when handed over to be perfectly clean and free from all mortar stains etc. complete. 15 Providing Un-coursed Rubble Masonry of trap / granite stones in lime mortar 1:1½, in superstructure as per detailed specifications and drawings or as directed including the stones to be set in the work as received from the quarry, after merely knocking off weak corners and edges with the masons hammer, the stones shall be carefully laid so as to break joints, no joint shall exceed 12.5 mm. (½″) in thickness, every stone shall be set flush in mortar, the face stone shall be for greater size, and good beds, one through stone shall be inserted at least every 0.80 sq. mete (1 square yard), the joints shall be racked out carefully at least 25 mm. (1″) where pointing or plastering to be done, striking joints where no pointing or plastering is to be done, preparing the lime mortar in lime miller, scaffolding, watering and all masonry work when handed over to be perfectly clean and free from all mortar stains etc. complete. 16 Providing and laying cast in situ 1:2:4 Lime Concrete of trap/ granite/ quartzite/ gneiss metal for coping or slab as per detailed specifications and drawings or as directed including centring, formwork, laying/pumping, compacting, roughening them if special finish is to be provided, finishing if required with fine aggregate, preparing the lime mortar in lime miller and then mixing with coursed aggregate in drum mixer, the concrete must be bitten for two days with pouring water, scaffolding, watering and all concrete work when handed over to be perfectly clean and free from all mortar stains, etc. complete. 17 Raking out joints in lime or cement mortar and preparing the surface for re-pointing or replastering including disposal of rubbish to the dumping ground within 50 metres lead. 18 Providing Lime Pointingto stone workin lime mortar 1:1 in superstructure, as per detailed specifications and drawings or as directed including all face or visible work shall be pointed, unless otherwise specified and shall be done while the mortar is fresh, the mortar shall consists of lime and fine sand shall not be ground fine but sand should be finer, the joints of the pointed work shall be neatly defined by the pointing, the lines shall be regular and uniform in breadth and the joints shall be raised or flat as may directed, preparing the lime mortar with 640gram pulpofwoodapple (Belfruit) per cubic metre of lime mortar as a bonding material, scaffolding, watering and allwork when handed over to be perfectly clean and free from all mortar stains etc. complete. 19 Providing and fixing Stone Paving, First Sort in lime mortar 1:1, with size of stone 45cm x 30 cm x 15cm, as per detailed specifications and drawings or as directed including all stone slabs to of approved quality, hard, even, sound, durable and uniform thickness, the stones to be very finely chisel-dressed on the surface and the course to be ofprescribed width, the joints running true, the stones to be laid with joints not exceeding 6 mm. (¼″) thick and to be evenly and firmly bedded flush in mortar on the concrete and no hollow left, side to be dressed true and as per shape at least half the depth from the face, preparing the lime mortar in lime miller, watering and all paving work when handed over to be perfectly clean and free from all mortar stains etc. complete. 20 Providing and fixing Stone Paving, Second Sort in lime mortar 1:1½, with size of stone 45 cm. x 30 cm. x 15 cm., as per detailed specifications and drawings or as directed including all stone slabs to of approved quality, hard, even, sound, durable and uniform thickness, the stones to be not finely chisel-dressed on the surface and the course to be of prescribed width, true for top 25 mm. (1″), the joints running true, the stones to be laid with joints not exceeding 8 mm. (5/16″) thick and to be evenly and firmly bedded flush in mortar on the concrete and no hollow left, side to be dressed true and as per shape at least half the depth from the face, preparing the lime mortar in lime miller, watering and all paving work when handed over to be perfectly clean and free from all mortar stains etc. complete. 21 Providing 12mm.thickRoughCastLimePlasterinsinglecoatinlimemortar1½:1in superstructure, as per detailed specifications and drawings or as directed including all joints in masonry and brick work are to be racked out to a depth of at least 20 mm. and the wall to be washed with fresh water and thoroughly wetted for six hours before plastering, the plaster to be applied in an even and uniform coat well pressed in to the joints and to be well beaten for 1½ days with hand tappers, the plaster should also be well sprinkle during the proses of beating with a mixture of 1.10 kg jaggary and 640 gram pulp of wood apple (Belfruit) in 90 to 135 litre of water, the plaster being wettedoccasionallywithfreshwaterwhilethe beatingisinprogress,allexposedanglesand junctions with door frame to be carefully finished, all mouldings shall be worked true to template and drawn neat, clean and level, soffits of arches must true arch of circle, preparing the lime mortar in lime miller with 1.60 kg Gugal (a kind of fragrant gum) and 960 gram chopped hemp (fibre of bhendiortag)percubicmetreoflimemortarasabondingmaterial,of lime as a bonding material, scaffolding, watering and allwork when handed over to be perfectly clean and free from all mortar stains etc. complete. 22 Disposing of dismantling materials of stone masonry / brick masonry derbies, excavated material / soil / murum / rubblish material or vegetation / grass / shrubs etc.From work site beyond the 15 km. 23 Providing and fixing double scaffolding system (cup lock type) on the exterior side of building/structure, including additional rows of scaffolding in stepped manner as per requirement of site, made with 40mm dia M.S. tube, placed 1.5 metre centre to centre, horizontal & vertical tubes joint with cup & lock system with M.S. Tubes, M.S. tube challis, M.S. clamps and staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for execution of work of cleaning and/ or pointing and/ or applying chemical and removing it thereafter. The scaffolding system shall be stiffened with bracings, runners, connecting with the building etc, wherever required, if feasible, 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. Note:- (1) The elevational area of the scaffolding shall be measured for payment purpose. (2) The payment will be made once only for execution of all items for such works. 24 Supplying and installing Dustbin dry and wet separately made as per approved design by architect. (Rusty Granite Stone Dustbins) 25 Photography and Videography shooting before and after execution works.
