CERTAIN REPAIRS FOR LEAKAGE ARRESTING WORK IN STATIC WATER TANK, FIRE FIGHTING TANKS UNDER GE (U-II) VISAKHAPATNAM

Amount

M&L for making V- groove of 10mm wide and 30mm deep or upto the extend of joint/crack present at site over joint/ crack line using electricity operated angle grinder with diamond concrete saw blade and the groove shall be cut on the concrete surface along the joint/crack over RCC structure & cleaning it by air blower, complete all as specified and directed.

M&L for Sealing of exposed 'V' groove of 10mm wide and 30mm deep with repair mortar cum surface levelling mortar, complete all as specified and directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for Drilling Holes of 12mm dia up to 100 mm deep holes in structural members at the interval of 300 mm in staggered manner or along the joint & crack line in Reinforced Concrete (RC) structural element including cleaning of the holes by air blower and inserting 12mm dia NRV (Non Returnable Valve) nozzle compatible with epoxy injector and having machined external end to receive outlet of Grouting Gun and fixing inside the hole by applying thixotropic epoxy adhesive to ensure complete sealing and allow curing the system for minimum of 8 Hrs before Grouting including nozzle projections, excess putty as required over concrete element by grinding, leveling and finishing the external surface, after completion of the work, etc. complete all as specified and directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for injection grouting of construction joints with non shrink cement slurry mixed with epoxy grouting @ 300 mm C/C including of opening of cracks to a groove of size 12mm X 12 mm, Nozzle at 300 mm C/C including of opening of cracks to be grooved of size 10mm X 10mm fixing of nozzles with fast setting plugging compound Renderoc plug, cutting the extra length of nozzle after grouting all in complete as per manufacturers instructions including necessary scaffolding and sealing the nozzle with thixotropic epoxy putty after the refusal of grout material from the nozzle, complete all as specified and directed. Note:- The leakage through other nozzle or cracks shall bemonitored while grouting and such points to be sealed as and when required without any extra cost. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M & L for providing & applying Two coats of Aqua Arm Top Guard inside the wall & floor of the tank having thickness of coating not less than I .5mm, complete all as specified and directed. Note:- First Coat shall be applied horizontally and second coat vertically all as per manufacturers instructions. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M & L for applying two coats of water based epoxy coating certified for portable water on all over the concrete surface from inside and the first coat shall be applied by brush & allow it to dry for 6-8 hrs and then apply 2nd coat and allow it to cure complete 24 hrs having thickness of two coating should not be less than 500 microns, complete all as specified and directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for examining concrete by tapping with light hammer and marking the loose concrete areas of structural elements in straight line geometrical forms, grooving the edges same with grinder upto 5 -10 mm depth without damaging existing rebars, carefully removing unsound weak/ loose concrete/ cover & concrete around the rebars upto 10 mm depth by low impact high frequency hammer/ chipper without damaging the sound concrete, daily cleaning and stacking of debris at prescribed location in polypropylene/ paper bags with necessary scaffolding and disposing off the debris so generated on weekly basis outside the premises,complete all as specified and directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for cleaning existing reinforcement with wire brush/rotary wire brush to make surface free from rust scales, loose material, dirt etc complete and applying two coats of alkaline rust converting primer with brush on the existing rebar for complete wetting of rusted metal surface, complete all as specified and as directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for Drilling & Re baring of 12 mm dia x 120mm deep, thoroughly coated with Zinc based reinforcement epoxy, complete all as specified and directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L Providing and Application of passivator/ Anti corrosion coating to the steel reinforcement, cement based polymer modified coating for corrosion protection, complete all as specified and as directed. Note:- The quoted rate shall include surface preparation and errection of steel porps as required for the application. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M&L for applying solvent free epoxy bonding agent for bonding old to new concrete using brush after cleaning of surface of all dust or latiance, complete all as specified and as directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

M & L for rebuilding the section of damaged RCC elements to its original size in thickness of 25mm by hand or spray application by providing and applying fibre reinforced, sulphate resistant, low shrinkage, high performance cementitious structural repair mortar or micro concreting in the ratio of 1:2:4 added with water proofing admixture, complete all specified or directed. Make:- Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent

Supply only cement bags of approved make, complete all as specified and directed.

Supply only Fine aggregate (sand), complete all as specified and as directed.

Notes for Srl item No 1 to 14 here-in-before:- (a) All the items shall be executed through approved authorised applicator Viz. Sika India Pvt LTD / Fosroc Chemicals / STP Ltd / Thermax Ltd or equivalent only based on standard manufacturer's instructions. (b) The quoted rate shall be inclusive of dewatering from sump, necessary safety and scaffolding arrangements.

B ESWARA RAO

GVR CONSTRUCTIONS

SUPREET CONSTRUCTIONS

K K INFRA

H S KALSI AND BROS

M/s KAMADHENU ENGINEERING CONSTRUCTIONS

THE VENKATESWARA SUPPLIERS

SIVA MARUTHI ENTERPRISES