Public Works Department Tender

Sand blasting of exposed steel/concrete for cleaning the surface contamination such as oil grease, loose particles, decayed matters, messalgaogrowth, laitenaces and removal of all traces of mould release oils and curing compounds thoroughly using compressed sand etc. complete in one coat.

Providing and inserting nipples with approved fixing compound MC Fix ST of   MC Bauchemie  or Equivalent after drilling holes for grouting as per Technical specifications including subsequent cutting/removal and sealing of the hole as necessary of nipples after completion of grouting with Cement/Epoxy

Micro-concrete providing Micro concrete using polymer modified cement premix packed in bags of satandard manufacturer, quartz sand, aggregates to achieve strength of M60 grade including curing.Add 10mm size aggregates by maximum 40% by rate of micro concrete Make: KRISHNA CONCHEM LTD"

Cement grouting (Non Shrink Grout) providing & placing high strength, non shrink pre-packed free flow micro concrete having compressive strength of 60MPa at 28 days (compressive strength of one day should not be less than 25 Mpa) as per specifications.''KRISHNA CONCHEM LTD''

Anti-Carbonation Paint-Providing & painting with approved quality two or more coats of anticarbonation paint, single component, flexible, elastomeric coating based on acrylic copolymer coating & compatible primer coat as per manufacturers specification to complete the work as per drawings, specifications & directions of Engineer-in-charge.''KRISHNA CONCHEM LTD''

Providing corrosion resistant steel CRS-50 bars of (SAIL, TATA, VIZAG, JSW Steel Ltd.)(Confirming to IS 1786 if 1985) for RCC work including bending, binding & placing in position in all the floors along with factory made precaste concrete cover blocks of specified s izes whose compressive strengthis not less than that of surrounding concrete in the structural member .

Expansion joints Strip-seal expansion joint (Providing & laying of a strip seal expansion joint catering to maximum horizontal movement upto 70mm, complete as per approved drawings & standard specifications to be installed by the manufacturer/supplier or their authorised representative ensuring compliance to the manufacturer's instructions for installation.) MAKE'' SANFIELD INDIA.

Removal of existing asphaltic wearing coat comprising of 50 mm thick asphaltic concrete laid over 12 mm thick mastic asphalt including disposal with all lift and lead upto 1000m.

Providing and applying tack coat with bitumen grade of 80/100 or bitumen emulsion using pressure distributor on the prepared bituminous/granular surface cleaned with mechanical broom as per MoRT&H specifications clause 503. Bitumen emulsion @ 0.375 kg/sq.m.

Mastic Asphalt (Providing and laying mastic asphalt wearing course on top of deck slab excluding prime coat with paving grade bitumen meeting the requirements given in table 500-29, prepared by using mastic cooker and laid to required level and slope after cleaning the surface, including providing antiskid surface with bitumen precoated fine grained hard stone chipping of 9.5 mm nominal size at the rate of 0.005cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces not less than 100 deg. C, protruding 1 mm to 4 mm over mastic surface, all complete as per clause 515.) b)25 mm thick

Drainage Spouts complete as per drawing and Technical specification

Dismantling old plaster or skirting raking out joints and cleaning the surface for plaster including disposal of rubbish to the dumping ground within 50 mts. lead.

20mm cement plaster 1: 3 (1 cement : 3 coarse sand)

Raising side shoulders with hard murrum including spreading watering and consolidation Murrum from borow puit

Stone pitching of 22.5 cms thick using laterite stone of approved quality in cement mortar 1:5( 1 cement : 5 coarse sand) including supplying of stone and preparing surface etc. complete.

Supplying and fixing in position factory made RCC drain - sections in a grade of concrete M-20 with 20 mm nominal size course aggregate of basaltic/ granitic and compacted by means of mechanical vibrator etc. complete including providing reinforcement with 6mm dia bars@ 15 cm c/c. a)Size-Internal clear channel 30 x30 cm length 50 cm, wall thickness 10 cm and base 10 cms

Providing and applying Synthetic elastomeric coating cum paint of reputed make such as Polysafe or equivalent conforming to relevant IS specification ready to use for bridge structures in saline atmosphere as to avoid salt concentration from marine environment, ultra-violet effects of the sun rays, fungus development and to protect the reinforcement from marine atmoshpheric effects in 3 coats including sand blasting, cleaning the concrete surfaces brushing and applying the polymerbased chemical coating with PRIMER, 1ST COAT and SECOND COAT at an interval of 24 hrs in approved shade and colour including scaffolding etc. (as directed by the Engineer-in-charge) complete with 5 yrs guarantee).

Providing and laying of hot applied thermoplastic compound 2.5 mm thick including reflectorising glass beads @ 250 gms per sqm area, thickness of 2.5 mm is exclusive of surface applied glass beads as per IRC : 35. The finished surface to be level uniform and free from streaks and holes as per MORTH Specification 803

Plain/Reinforced cement concrete in sub-structure complete as per drawing and technical specifications D) PCC Grade M30 Height upto 5m Case II )With Batching Plant, Transit Mixer and Concrete Pump

Laminate Carbon-Providing Applying ASTEC-CI 131-100 or equivalent laminate confirming to ACI 440 with complete structural adhesive including surface reparation: Grinding concrete substrate,cleaning it with wire brush removing oil, laitance if present etcetera complete. Profiling: Applying compatible primer on prepared substrate, filling the holes and uneven surface with thixotropic putty etcetera complete Application of plate: Marking the application area on structural element, cutting the plate to require size, applying compatible structural adhesive on plate in parabolic manner,paste the plate on desired area by using tamping roller to avoid any air voids etcetera complete. Sand parting. Applying second coat of saturant after minimum 12 hours rectify air voids if any paste the river sand on it to make surface rough to take any further finishes (Mode of measurements per running meter of laminate applied) Material make- Dextra/Krishna conchem/JSR equivalent.

Lifting of span for Replacement of Bearings on Pier MAKE.'' JACKING ORIONE''

Replacement of old bearings by new Pot Fixed Bearings adequately Designed for live Loads as per IRC Part III including Design & Levelling by Epoxy Mortar Bearings Make ''SANFIELD (INDIA) LTD.

Replacement of old bearings by new Pot Sliding Bearings adequately Designed for live Loads as per IRC Part III including Design & Levelling by Epoxy Mortar Make ''SANFIELD (INDIA) LTD.

Carrying out NDT Test in Two Spans & One Pier/ Pier cap by UPV, Schmidt Hammer Carbonation, Half Cell Potentio-meter, cover Test Before & After the repair " SANFIELD (INDIA) LTD.

Load Tests (I+II)- Load Testing of 20m Span Length & as per IRC Loadings after completion of work as per direction of Engineer in charge. '' IN HOUSE''

Carbon Wrap- Strengthening structural elements with fiber wrapping system comprise of Unidirectional Carbon fiber sheet (400 GSM) & compatible/moulding concrete… Material make: Dextra/Krishna Conchem/ISR or equivalent MAKE ''KRISHNA CONCHEM LTD.

Removal of loose damaged concrete, application of Polymer Bonding Coat & Applying Polymer Modified Mortar for Thickness less than 40mm by 1;3 cement Mortar with Addition of 15% Polymer by weight of cement PLYMER MAKE''KRISHNA CONCHEM LTD.

Add 1% cess on item No.3,5,11,12,14 & 22