WORK NO. 1 - RANKALA TALAV YETHIL SANDHYA MATH ANI DHUNYACHI CHAWI YANCHE JATAN V SANVARDHAN KARNE.

Amount

SANDHYAMATH

Clearance of debris around the heritage building by excavation upto depth 1.50mtr to 2.00 mtr carefully without damaging the buried architectural parts of the building and collect all the intact parts at proper place for reuse at the time of restoration work as per direction of Engineer incharge. All kinds of soil

Providing and making a coffer dam around the heritage structure,with necessary equipment,necessary material,transport,including dewatering,etc complte as directed by the architect.

Making a temporary approach road to the structure with necessary machinery and equipment with necessary equipment ,necessary precautions and removing it again from the waterbody as directed ,etc complete.

Removing of old sulphated lime wash/white or colour wash in multiple applications without causing damage to the below stone/brick/plastered surface. Scrubbing (not by scraping which leaves surfaces scarred and scratched ) with bristle brushes and hot water ( Care to be taken if the surface is weak one it will break down). Hot water should be used if the limewash has an oil or tallow binder. Gentle cleaning with air abrasive tools can be used if the wall surface is not very week.The final clean will almost invariably have to be carried out by hand scrubbing and rinsed with clean water on completion. The work should be done under supervision of a trained conservator.

Manually removal of vegetation (major trees, climbing plants, creepers) from walls, columns, arches, floor etc in a skilled and careful manner, using appropriate tools and means and without causing any damage to the adjoining parts, including carrying and stacking the dismantled materials including lift/lower upto 11mtrs and lead upto 50 mtrs as directed by the engineer or architect in charge. The exposed surfaces will be coated with a paste made from ammonium sulphamate crystals or with "Tree killer" available in market. In this condition the root system may be left to absorb and die. Large sections of dead wood must not be left within the core. As they decay they will remove support and create voids and weaknesses in the wall. Pull off a well‐established mat of vegetation must be resisted. Tamping, grouting, pointing and resetting of brick / stones especially on wall top, must all be anticipated as remedial work

Sterilizing treatment using Biocide: Masonry covered with algae, lichen, mosses, small plants, etc should be removed with knife blades, spatula and stiff bristle or soft wire brushes. Spray diluted solution of quaternary ammonium based biocide on surface of the masonry with out allowing to spray drift. Leave the treated area for at least one week than brush off as much dead growth as possible. Next again spray a solution of a proprietary biocide and incorporating tribute tin oxide in same manner and clean the surface

Lime Mortar 1:1 ( 1 Slaked lime :1 fine sand)

Lime Mortar 1:2 ( 1 Slaked lime: 2 Coarse Sand)

Random rubble masonry with hard stones in foundation and plinth including levelling with lime concete (1 lime:3surkhi:6 coarse sand) with 40mm stone aggregate upto plinth level with lime mortar 1:1:1(1Lime: 1Surkhi:1Coarse sand)

Coursed rubble masonry in first sort with hard stones in foundation and plinth including levelling with lime concete upto plinth level with lime mortar 1:1:1(1Lime: 1Surkhi:1course sand)

Masonry work (second sort) , in lime mortar 1:1:1 (1 lime : 1surkhi:1 coarse sand)

Stone consolidation‐removing the loose/damaged stone and reconsolidating with new stone/reusable stone with lime mortar(1:3) wherever ncessary

40 mm thick fine dressed stone flooring over 20 mm (average) thick base of lime mortar 1:3 (1 lime: 3coarse sand) with joints finished flush.

Recessed lime pointing 1:1:1 ( 1 Slaked lime:1 surkhi:1 fine sand)

Providing and fixing stainless steel cramps of required size and shape for anchoring stone wall lining to the backing or securing adjacent stones in stone wall lining in lime mortar 1:2 (1lime : 2 coarse sand), including making the necessary chases in stone and holes in walls wherever required

Providing and fixing copper pins 7.5 cm long 6 mm diameter for securing adjacent stones in stone wall lining in lime mortar 1:2 (1lime : 2coarse sand), including making the necessary chases

Repairing of .5mm to 5 mm wide open joints / cracks in all types of sand stone masonry work including scrapping of loose jointing material from cracks. The inner side to be filled/pointed with polymer mixed lime mortar with wooden trowel and fixing grouting nipple from outer side as directed by Architect. Then apply polymer based lime mortar by injection grouting through 5mm diameter nozzle through the pre fix nipple up to total thickness of existing stone wall and removing the PVC nipple pipe, lime moratr of mix lime & sand 1:1 mix with polymer using katha or other additives to achieve require M 72.21 11. CRACK REPAIRS AND STRUCTURAL STRENGTHENING matching colour and including cost of all materials, labour, machinery, equipment, curing and cleaning the site as directed.

Steel‐rod stitching incracked stone patties, beam,and lintels.Providing and fixing stainless steel rods of 90cms length of which 15cm on either side and cold bending at 90degrees. The stainless steel clamps to be fixed perpendicular to the crack by drilling in stone and fixing with cement and aradite mixture in such a way that the entire length of the rod is in complete contact of the stone and the bent ends are fully inserted in the cracked stone. Use 316 grade stainless steel charge per hole.steel rod charges are counted per kg.Holes with 6mm, 8mm, 10mm or 12mm dia.as per requirement of position.

Dismantling tile work in floors and roofs laid in lime mortar including stacking material within 50 metres lead For thickness of tiles

Careful removal of existing deteriorated/ damaged/ weathered lime plaster without damaging the suurface below it. Caution: Workers have to wear helmet, safety belt and safety gloves Methodology : i. Erect scaffolding enabling the safe platform to work ii. Use precise tools like scalpe etc, to remove the plaster iii. Take precaution such that surface below the plaster is not damaged.

Providing protective coating of water repellent siloxane (transparent in color) through brush or spray untill complete impregnation over completely cleaned and dried stone or plastered surface to reduce the absorption of water.

Retrofitting of the FOUNDATION WALL WITH PRESSURE Grouting and strengthening with specilized and as directed by the architect,etc complete.

Retrofitting of the stone walls with lime mortar 1:3,removing the stones from damaged part of the walls,finishing the same with similler kind of stone masonry with using and necessary scaffolding, as directed by architect,etc complete.

LINTELS 2.5X0.25X0.25

DECORATIVE BUTTRESS MOTIEFS

DECORATIVE CAPITAL HALF PORTION

Providing and fixing fine chiseled stone trades & Risers of size 45cm X 30cm X 20cm width may be vary as per site condition fixed in Cement morter 1:4 etc. complete.

PLATFORM /DECK 16M X18.2

1.28 A) Excavation for foundation in hard murum and boulders including shoring and strutting as necessary and disposing off excavated stuff as directed etc. complete..BR.3 Page No. 102

1.28 B) Providing and laying Cast in situ/Ready Mix cement concrete in M-10 of trap/ granite/ quartzite/ gneiss metal for foundation and bedding including bailing out water, formwork, laying/pumping, compacting, roughening them if special finish is to be provided, finishing if required and curing complete, with fully automatic micro processor based PLC with SCADA enabled reversible Drum Type mixer/concrete Batch mix plant (Pan mixer) etc. complete. With natural sand/V.S.I. quality Artificial Sand Bd. E. 1 Page No. 287

1.28 C) Providing uncoursed rubble trap /quartzite /gneiss stone masonary in cement mortar 1:5 for piers, abutments, wings, returns, head-walls, parapet etc. including bailing out of water, striking joints of the non exposed faces, pointing the exposed faces with cement mortar 1:3, scaffolding, watering to masonary and etc. complete.

1.28 D) Filling in plinth and floors with approved excavated material in 15cm. to 20cm. layers including watering and compacting etc. complete.Bd.A.11 Page No. 263

1.28 E) Providing and casting in situ cement concrete M-20 of trap/ granite/ quartzite/ gneiss metal for R.C.C.beams & lintels as per detailed drawings and designs, or as directed centering, formwork, compaction, and roughening the surface if special finish is to be provided and curing (excluding reinforcement) complete.

1.28 F) FABRICATION: Providing and fixing mild steel grill railing weighing 20 kg / sqm.with PVC handrail cover and newel post for staircases, including fabricating, fixtures, drilling holes in concrete / other surface, erecting the grill work, necessary welding, fixing by nuts and bolts, fixing PVC handrail cover, with one coat of anticorrosive paint and two coats of oil painting with approved colour and shade, remaking the damaged surface, cleaning, etc. complete. Spec. No. : As directed by Engineer in charge.

Dhunyachi chavi

Removing the plants, vegetation and weeds- from the masonry walls & paving of the structure, cleaning of the all stone surfaces & maintaining them, as directed by architect,etc complete.

Stone cleaning and surface preparation - all stone surface shall be dry and free from contamination such as oil, grease, loose particles, decayed matter, moss, algal growth, laitaince and all traces of mould realease oils and curing compound, lightly grit blasting the surface, cleaning of stone by pressure jet and applying protection of silicon Silaxane coating on it in two coats on dry surface of the stone.apply second coat when first coat gets dried, as directed by architect. etc complete.

Retrofitting of the FOUNDATION WALL WITH PRESSURE Grouting and strengthening with specilized acralic,polymer modified morter under skilled supervision and as directed by the architect,etc complete.

Structural repairs stone masonry-Retrofitting and structural repairs for stone masonry , specialized carving and dressing required to re-make existing carving on stone work cause due to weathering and man made interventions by skilled labour and under skilled supervision , as directed by architect, etc complete.

Providing weathered pointing with lime mortar 1:3 for stone masonary incuding scaffolding % curing complete

providing stone masonary work in cement mortar 1:3 with watering for substructure complete as per drawing and technical specifications- coursed rubble masonary (first sort)

providing & applying required course of a water based UV resistant evercrete top sealant to protect natural stone, bricks, concrete & wooden structures from water intrusion and staining due to water panetration and algue formation etc. complete.

dismantling the r.c.c work 1:2:4 and sorting out the materials such as steel etc. as directed and stacking them within the specified lead as directed.

Selfy points (Enter Maximum Rate 4,00,000/- per unit in Column No. 13)

Nilesh Laxman Patil

Mahesh Krishnarao Nikam