Special Repairs to RCC Berthing Jetty (Phase-I) at Kamorta in Nancowry Group of Islands.

Surface preparation to receive micro concrete by chipping to depth of upto 200mm, cleaning, removing the traces of dust, loose concrete etc. including cost of all labour charges, minor tools, labour cess & GST etc. complete.

Replacement of reinforcement as additional bars including bending, cutting, welding and fixing, including cost of steel MS Rod HCR 550D, transportation charges, all labour charges, minor tools, labour cess & GST etc. complete.

Steel centring and shuttering including strutting propping etc. and removal of form for : Columns, Pillars, Pipes, Abutments, Posts and struts, including cost of all materials, transportation charges, all labour charges, minor tools, labour cess & GST etc. complete.

Drilling holes in the existing structure with mechanized boring machine to an average dia of 100mm at required location for pouring the micro concrete including cost of all labour charges, transportation charges, machineries, Labour cess & GST etc. complete.

Supply and apply of high strength, non shrink cementitous free flow micro concrete (With minimum 28 days flexural strength 50 Kg/ Sqcm and compressive strength 500 Kg/Sqcm. As per BS 4551-80) for above water level using 12mm down size graded stone chips with the ratio of 1:0.75 (1 high strength & non shrink cementitious micro concrete chemical 0.75 12mm to 6mm mainland stone chips) on site to enable completion of pouring in a continous operation. An approved grout concrete mixer of slow speed heavy duty drill and exact quality of water as recommended should be poured into the mixing vessel with cleaned mainland stone chips of size 12mm to 6 mm slowly and mix the same thoroughly in a forced action. The mixed material should be placed immediately to positioned formwork continuously to an average thickness up to 200mm without any gap, including cost of all mainland materials, transportation charges, all labour charges, minor tools, labour cess & GST etc. complete.

Supply and application of Epoxy Conctete Bonding agent (Confirming to and having BS 6319 certification) cleaned and properly prepared old concrete surface to give good bonding between old and new concrete, including cost of all materials, transportation charges, labour charges, minor tools, labour cess & GST etc. complete.

Supplying, mixing and applying CURING MEMBRANE or equivalent with water including cost of materials, transportation charges, labour charges, minor tools, labour cess & GST etc. complete.

Protective Coat : Supplying and applying two coats of IPH - Conguard or DECKGUARD 'S' or equivalent by spray or brush over the prepared surface and allow it to dry including cost of materials, labour, transportation charges, brushes, tools, equipments labour cess, GST etc. complete. The polymer material properties are to be as follows: 1. Water absorption test in (%) : 0.15 %

Lockset: Mark the holes at the required spot. Drill the pilot holes using 14mm dia hammer drill bit to a depth of 150 mtr. clean the holes with the good water, mix the base and hardener of Polyester resin LOKSET "S" pour the same to the 2/3 of the depth and insert the shear connecting rod of 12mm dia gently into the prepared holes. Pack the gap if any, allow it to set for min.20 mtrs without disturbing including cost of all materials, all labour charges, tools and plants, machineries, labour cess, GST etc. complete.

Providing and fixing the sacrificial anode (Fosroc Galvashield XP or equivalent) over the main reinforcement of pile, pile caps, columns, deck, beams and Deck slabs etc. as per the manufacturer specification and designed spacing’s, as sacrificial anode to the reinforcement against corrosion, including cost of all materials, transportation charges, machineries and labour charges, minor tools, labour cess, GST etc.complete.