V O Chidambaranar Port Trust Tender

Shear Connectors: Drilling 12mm dia holes up to a depth of 75mm maximum and fixing 8mm dia L shaped anchor rods as shear connectors at every 500mm c/c on the surfaces of the Pile or any other structural member as the case may be. Clean the same using water and make sure that there are no fine particles present in the hole. Mix the base and hardener of the polyester resin with the spatula thoroughly. Fill the drilled and cleaned holes to a minimum depth of 1/3rd of the hole with the prepared polyester resin. Make sure that the resin has reached till the end of the hole. At this stage push the shear connector gently into the hole and finish the excess resin which comes out of the hole and allow the shear connectors not to be disturbed for minimum 20 minutes - complete. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Provision of Galvanic Anode: Prior to installation of the self-sacrificial anode Galvashield XPI units, check the continuity of the steel reinforcement. Any loss of continuity will require additional electrical connections or restoration of continuity by effective means. Select a location for the Galvashield XPI as close as practical to the edge of the repair zone. Galvashield XPI units should be positioned around/along the repair boundary. In addition to standard substrate preparation, the Galvashield XPI anode(s) shall be thoroughly pre-soaked in clean water for a minimum of 10 minutes and a maximum of 20 minutes, prior to the application of the repair mortar. Tighten tie wires using Galvashield Fixing Tool so that no free movement is possible, thus ensuring good electrical continuity. To test electrical continuity between tie wires and reinforcement bar, a continuity meter like electrical multi meter should be used. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Core Cutting: Mark the core holes along the RC beam interval of 1 m/RC deck slab interval of 1 sqm to facilitate for the pouring of micro concrete. The core cutting need to be done with an electrically operated core drilling machine fitted with diamond tool of dia not less that 69 mm and to the entire depth of the slab portion. Care to be taken to minimize the cutting of the rebar as reinforcements are expected at the negative bending moment zone.

Anti-corrosive Coating: Clean the rebars using the rust remover if there exists any rust, otherwise clean the rebar free of foreign material. Mix the base and hardener of the anti-corrosive coating like Nitozinc Primer of Fosroc or equivalent mechanically using a slow speed heavy duty drilling machine fitted with mixing paddle. Apply the mixed materials to the cleaned rebar at 45 microns/coat and total dry film thickness (DFT 90) microns in 2 coats and allow it to dry complete. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Epoxy Jointing Compound: Clean the concrete surface, remove the loose particle, if any. Make sure that the form work is ready for positioning. Mix the base and hardener of the epoxy resin jointing compound and apply the same to the prepared surface. Care should be taken that the micro concrete needs to be done within 5 hours maximum from the time of application of epoxy jointing compound Nitobond EP of Fosroc or equivalent. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Formwork: Centering and shuttering including strutting, propping, etc, as per the required line and length at all different elevations level as per the standard specification complete. Form work should be rigid to prevent loss of grout or mortar concrete from concrete at all stages & appropriate to the methods of placing & compacting as per standard specification. It should be made of suitable material i.e., timber, plywood, plastic, Steel depending upon the type of finish specified. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Micro- Concrete: Stock sufficient quantity of micro concrete (Renderoc RG of Fosroc or equivalent) and 12mm downgraded chips on site to enable the completion of the pouring in a continuous operation. An approved concrete mixer or a slow speed heavy duty drilling machine fitted with mixing paddle shall be used. Mix the micro concrete and the 12mm down grade chips in the ratio of 1: 0.5 by weight with required quantity of water as per the data sheet and place the same to the prefixed formwork. Remove the formwork after 24 hours in the case of Pile and other structures and check for any surface defects and if so, apply the polymer modified mortar - complete. The rate shall include cost of equipments, interacting, drilling holes in deck slab, mixing, placing, making, arrangements for supply, micro concrete, labour, transport and fuel, cost of boat hiring, catamaran, pontoon etc. complete.

Curing Compound: Immediately after striking the form work or after completion of the repair works, the surface should be sprayed water once and followed by application f membrane-based curing compound like Concure WB of Fosroc or equivalent diluted with water in the ratio of 1: 1 as a curing membrane - Complete. The rate shall include cost of equipments, plants, materials, sand, instrumentation, hiring of boat, catamaran, pontoon, labour and survey, fuel etc. complete.

Protective coatings for Environmental face using Dekguard S of Fosroc: Providing and applying a single component high build elastomeric, crack - bridging, resistant to CO2 and Chloride ion diffusion, UV resistant, breathable acrylic coating with elongation at break exceeding 200% using Dekguard S of Fosroc or equivalent material applied in two coats(Each coat 125 micron DFT) on acrylic based primer at an average thickness of 250 microns DFT in two coats including acrylic resin based primer as per recommendation of the manufacturers. Item rate is inclusive of the materials all labour, supervision, tools and tackles and transportation etc. complete as per specification and as directed.

Conducting Ultrasonic Pulse Velocity Tests in the various RC structural elements as per IS 516 (Part 5/Sec 1): 2018 (First Revision)

SCHEDULE - B

Setting up the piling gantry and connected equipment over each pile location, including cost of shifting, cost of all materials for piling gantry, labour, setting up the rig to alignment and correct dimensions as shown in the drawing and as directed by the EIC.

Providing and fabricating M.S.liners(8mm thick) of required length with M.S. shoes of 1.0 m height using 12mm thick M.S. plates for 1200 mm dia bored vertical pile measured from cut off level of pile to the terminating level including supplying, cutting, rolling, bending, handling and welding cost, labours, materials, accessories, etc., complete as per drawings and specification as directed by Engineer Incharge.

Placing the M.S liner (item 2) above for 1200mm dia vertical bored piles. The cost inclusive of charges for transporting to the pile location, aligning, lowering, pitching and driving the liners etc. complete as per standard specification and as directed by Engineer Incharge.

Boring through all types of soils, boulders, hard strata and rocks etc. for 1200mm Dia vertical bored piles from the sea bed to the founding level (-29 meter CD) of the piles, including bailing, chiseling, shifting of materials etc… complete as per directed by the Engineer Incharge

Fabricating and placing in position of steel reinforcement TMT bars (Fe 500) as per IS 1786 for all reinforced cement concrete pile, super structure, pile caps, repair works etc. including cutting, bending, tying with 16 gauge G.I. binding wire and welding to proper specifications wherever required including cost of steel and binding wire, cover blocks of 150mm dia in CC M40 mix etc. complete as per approved drawings standard specifications and as directed by the Engineer Incharge.

Providing and laying cast-in-situ tremie concrete mix M40 as per standards for 1200 mm Nominal dia vertical bored cast-insitu reinforced cement concrete piles measured from cut off level of the pile upto founding level excluding cost of reinforcements and M.S liners but including mixing, laying and compacting, consolidating complete as per approved drawings, standard specifications and as directed by the Engineer Incharge.(cement content should be used above 400 kg)

Chiseling/Breaking using suitable tools and equipments the top of pile concrete up to the receipt of dense concrete and dressing the pile head suitably so as to receive the form work for deck work, including breaking to the required level exposing the pile reinforcement to sufficient length as per approved drawing for embedding into the deck slab etc. including removal of concrete debris from the site, complete for 800mm dia piles as directed by the EIC.

Providing and laying cement concrete in M40 mix for cast-in-situ deck concrete in pile muff, deck beam and deck slab works as per drawings, excluding cost of reinforcement in position and including shuttering, mixing, laying, consolidating , curing etc., and making necessary provision for fixing fixtures as per approved drawings complete as directed by the EIC.(cement content should be used above 400 kg) Note:Placing the precast units shall be measured and paid under this item of work

Providing and placing in-situ grade M30 for wearing coat concrete over the deck slab, all as per drawings with necessary shuttering, mixing, transporting, placing, vibrating, finishing and curing the concrete including all labour, materials tools, equipment, fuel and all sampling, testing and records etc., complete and as directed by the Engineering In Charge.

Fixing the Cell type of fender of size 1600 with SS anchor bolts, U hooks, fender plate with pad exclusing cost of cell fender, fender pad and required chain will be issued by the port with lead of 3 km but including cost of fixing the fender at dolphin. Fixing necessary welding with deck reinforcement steel cost of anchored with SS 316 resign anchor and hooks, all handling, labour ,transportation, scaffolding charges, lead and lift, hire charges of all men and machineries, tools & plants, etc. complete and as directed by the Engineering In Charge.

Supplying, handling, transporting and fixing in position of Cast iron Bollard (150 ton capacity)with necessary cutting, concrete chipping, drilling, grouting, welding with deck reinforcement steel and necessary coal tar painting(wherever required) including all materials, labour , consumable items etc. Complete as per drawing and specifications as directed by the EIC.

Supplying and fixing in position of Bitumnioun pad 20mm thick for pre joint in the expansion joints including fabricating and fixing in position of M.s.Plates etc., all as per drawing and specification including all labour,materials, tools,equipments, Bitumnioun pad 25mm thick and sealing compound etc., complete complying with AISS and as directed by the EIC.

Dynamic pile load test (High strain Dynamic testing) perform Non-Destructive Integrity test of piles of size 1200mm dia according to the approved Specifications and as directed by the Engineer or his representative all as per relevant BIS/ASTM codes including all labour, tool. Equipments, plant, etc., complete. Providing, conducting of routine Dynamic high strain testing using pile Driving analyzer by impacting a 1.5 percent weight of capacity of pile with a fall varying from 1m to 3m including preparing head, providing ply and steel plates, fixing strain gauges etc. all conforming to ASTMD4945. Further include evaluating and submitting report covering Providing, conducting of routine Dynamic high strain testing using pile Driving analyzer by impacting a 1.5 percent weight of capacity of pile with a fall varying from 1m to 3m including preparing head, providing ply and steel plates, fixing strain gauges etc. all conforming to ASTMD4945. Further include evaluating and submitting report covering i) True static capacity of the pile at the time of testing ii) Simulated static load test curve iii) Total skin friction and end bearing of pile iv) Skin friction variation along the length of the pile v) Compressive and tensile stresses developed in pile during testing vi) Net and total displacement of the pile

INTEGRITY TEST ON WORKING PILES Conduct non-destructive integrity test on working piles using low strain sonic diagnostic system as specified and as directed by the Engineer for 1200 mm dia piles

ROUTINE VERTICAL LOAD TEST Supply necessary kentledge and perform vertical load tests on the marine piles according to the specification for 1200 mm dia piles

Pull out load test - 1200mm dia piles according to the specification (IS 2911)

Horizontal load test - 1200 dia piles

Dismantling and removal of Plain Cement Concrete (PCC) above G.L. upto floor two level including stacking of serviceable materials and disposal of unserviceable materials within a lead of 100 m including all labour, tools, equipments, transport, fuel,etc., complete complying with AISS and as directed by the EIC.