REPAIR MAINT TO SURFACE OF FLEXIBLE RIGID PAVEMENT OF RUNWAY, EPOXY FILL AND OTHER MISC WORKS IN AIR FIELD

Amount

Schedule A / BOQ

Note for all items of this BOQ :-

SITE FOR EXECUTION OF WORK :- 1) Tenderer shall note that work shall be executed at Runway / taxi track/ Tarmac & around of airfield area.

Due to continous operational commitment at Sulur Station, site for execution of work will be made available to contractor on Saturday, Sunday, Holiday and non flying days or whenever Runway will be made available to the department by ATS authorities.

The contractor will have to arrange his working programme accordingly.

The contractor has to liaise with the ATS authorities two days prior of his planned works and schedule accordingly.

Any claim of the contractor on account of not giving the entire site after award of work or giving the site in piecemeal manner will not be entertained by the department at any stage.

The quoted rates shall be deemed to be inclusive of these aspects.

Repair to existing joints of size 10 to 22 mm wide and 20 cm to 25 cm depth (average) consisting of following activities

Raking out old decayed/damaged existing sealings compound and cleaning the joints thoroughly by removing dust, dirt foreign material by appropriate electric cutter / diamond cutter and Air Compressor. Note :- After cleaning the joints thoroughly, it shall got approved by GE before progressing further.

Removing the existing sealing composing from the edges, bottom and sides of the joints by cutting edges, bottom and sides of the joints 1 mm of the existing construction joints (upto full depth of existing joints) by mechanical tool (diamond cutter) to make the cross section of joint truly rectangular. Note :- Cleaning the edges/sides/bottom of joints by using diamond cutter only and clean surfaces shall got approved by GE. When the cleaning process approved by GE, primer and joint filling done in presence of Engr-in-Charge.

Once again cleaning the joints with compressed air and applying two primer coats upto the 10 to 15mm or above bake up rod depth & width of the existing joints after an interval of 30 minutes to complete prepred surface the joints.

Sealing the joints with polyurethane joints sealant/ X-Seal traffic loop resin type component flexible polyester loop lighting (upto 10 to 15mm or above bake up rod of existing joint) all as per manufacturers instruction including applying masking tap on edges of joints to prevent accidental spillage of sealent on top surface and removing the tap after sealent is applied complete all as specified and directed.

Note :- (i) Material shall confirm to BS (manufacturer : FOSROC (COLPOR-200 gray) or Chemtallraj India Pvt Ltd. (RALLITHANE) OR STP Ltd (Shalifax PU) OR CICO OR Cippy ply seal. And CALIBUR Construction chemistey- X-seal traffic loop-power component.

(ii) Electric supply shall be arranged by the contractor at its own arrangements and rate deemed to be inclusive.

(iii) The contractor shall adhere to time frame as per the user's requirement and as per demand. The deamand and the location of work will be intimated either by rep of User/ MES rep well in advance. Incase of failure to attend the demand in intime penalty will be levied for each day @ Rs. 1000/- for non completing the requirement till completion of work. Note that this penalty is exclusively other than condition 56 of IAFW-2249 and shall be treated as interim condition of the contract. (a) The nature of work is related to Flight safety. Hence no delay is acceptable. (b) The decision of the Accepting Officer in this regards shall be final and binding.

Plain cement concrete 1:3:6 type C1 using 20 mm graded stone aggregate as in foundationn filling and mass concrete

M&L Precast RCC type B1 1:2:4 (20 mm graded stone aggregate) set in cement mortar 1:6 as in cover slabs on drain including demolition/ taking down existing cover drain.

TMT bars 6 to 8mm dia and over cut to length, bent to shape required, including cranking, bending spirally for hooping for wall beams slb etc, hooking ends and binding with and including mild steel wire (annealed0 not less than 0.9mm dia all as directed.

Cutting the existing concrete slab by machine to average depth of 30-40mm and average width of 25-50mm, trimming the surface and application of resin formulation in two stages as given below including preparation of surface complete :- (a) First stage consist of application of a primer coat with epoxy resin of mix with formulation of 100 parts of Araldit GY 257 (dipenny 101 propane epichorihydrin) and 50 part of Hardner Hy 140 by weight.

(b) Second stage consist of application of epoxy resin mortar mix with the following formulations:- (i) Araldit GY 257 - 100 parts by weight (ii) Hardener Hy 140 - 50 parts by weight (as per weight of Araldit) (iii) Quartz sand No 9 - 450 parts by weight. (as per weight of Araldit)

Note : (a) Any excess width/depth occured during cutting more than as specified shall be filled with the same resin formulation in two stages as mentioned above without any extra cost to the government by the contractor.

(b) The contractor shall adhere to time frame as per the user's requirement and as per demand. The demand and the location of work will be intimated to the contractor either by rep of User/ MES rep well in advance. Incase of failure to attend the demand in in time, penalty will be levied for each day @ Rs. 1000/- for non completing the requirement till completion of work. Note that this penalty is exclusively other than condition 56 of IAFW-2249 and shall be treated as interim condition of the contract.

The nature of work is related to Flight safety. Hence no delay is acceptable.

The decision of the Accepting Officer in this regard shall be final and binding.

Applying one coat of water based paint on runway/taxiway/apron or other airfield markings of any size and length such as lines, dashes, arrows, letters, boxes etc on roads, pavements and the like including preparation of surfaces by brushes/ mechanical grinder/sand papers, making surface rough to hold paint exceeding 10 cm wide all as specified and as directed using mechanical pavement marking machine including necessary DG Set required to operate the machine. Complete scraping / removal of existing paint deemed to be inclusive in the above quoted rate. Make of run way marking paint : M/s Asian paints, M/s Shalimar Paints, M/s Johnson and Nicholson, M/s Berger paints,

Note :- (i) During weekdays site will be available for approximate 4 to 5 hours du+B19e to aircraft movements such as landing/takeoff .(ii) During weekend days site will be available for 5 to 6 hours. Contractor shall consider the above points while quoting the rate and no extra payment shall be claim by the contractor on account of this.

Applying one coat of white wash on walls /concrete pavement surface including preparation of old surfaces all as specified and as directed.

Note :- White wash shall be carried out two or more times at an interval as required by air force authorities at ORA 05 & 23 END only. Payment of each coat shall be measured and paid seperately.

Applying two coat of water based paint of black colour o on runway/taxiway/apron or other airfield markings of any size and length on runway/taxiway/apron or other airfield markings of any size and length including letters and numeral markings with suitable mechanical pavement marking machine, including removal of existing complete painted area and cleaning of the area by means of wire brushes/ mechanically complete and removal and surfaces not exceeding 10 cm wide where directed and all as specified and as directed.

Demolition of existing un-reinforced Cement Concrete in ground floors and pavings not exceeding 15 Cm thickness complete all as specified and directed.

Removal of demolished materials / debris etc. to a distance exceeding 1.5 KM and not exceeding 5 KM and depositing where directed complete all as specified and as directed.

Note for item No 31 & 32: (i) Removal of demolished material obtained from Sl. item No. 31 upto 1.5 km distance shall deemed to included in the rate quoted for Sl. item No 31.

(ii) Removal of demolished material obtained from Sl. item No. 31 beyond 1.5 km shall only be measured and paid under sl item No. 32

Dry lean concrete of compressive strength not less than 10 Mpa at 7 days with minimum 150 Kg of cement/cum laid and rolled with double drum smooth wheeled vibratory roller of 8 to 10 Ton capacity complete including demolition of concrete and removing to out side MD land all as specified and directed.

Pavement Quality Cement Concrete (PQC) work in pavement slab / hard standing, in single layer, using design mix with minimum cement content 400 Kg/Cum to achieve flextural strength 45 Kg/sqcm on 28 days (lower concrete limit LCL) in pavement slabs, spread & compacted using vibrators and paving slip form conrete sensor paver min 4 m wide and Mechanical paver with electronic sensor (minimum 05m extendable with attachment to 8m wide to required gradient , using non circular synthetic fiber @ 0.25% by weight of cement, including necessary steel form work along the joints compacting finishing and belting/brooming all as specified and directed.

Note for item No 36 :- (a) Construction Joints/dummy joints and expansion joints shall be measured and paid seperately under respective items.

(b) Deduction shall be made in computing concrete quantity for expansion joints.

(c) Contractor shall consider 400 kg of cement per cum of concrete while quoting this item. Actual quantity of cement shall be used as per approved design mix. No price adjustment shall be applicable for excess quantity of cement content i.e beyond 400 kg as per approved design mix in execution of work.

(d) Non circular synthetic fiber shall be mixed in the " PQC" @ 0.25% of cement all as per manufacturers instructions and as directed by Engr-in-charge.

(e) Supply only of POLYESTER TRIANGULAR/non circular synthetic fibre shall be measured and paid seperately

(f) Cost of brooming and belting shall be measured and paid seperately.

(g) Cost of steel formwork and testing as specified shall be deemed to included in the rate quoted by the tenderer.

(h)Maximum working temperature shall not exceed 30 degree centigrade of atmosphere.

Supply only polyester triangular/Non circular synthetic fibre (Recron CT-2424 fibre or equivalent as approved by E-in-C Branch) for pavement quality concrete PQC surface complete all as specified and directed.

One layer of polythene film (transparent colour) 400 micron thickness as per ASTM D2103/IS 2508 laid sand cushion with side and end overlapping not less than 300mm all as approved by GE. Note :- (i) Measurement shall be taken for net area and unit rate quoted shall deemed to include for over lapping.

Finishing surfaces of concrete pavement by belting / brooming complete all as specified and directed.

10mm thick manufacturing sand cushion as inter face layer below the PQC including watering and consolidation Spreading and levelling in layers n exc. 25 cm thick

Applying two coat of water based road marking paint such as lines, dashes, arrows, letters, boxes etc on roads, pavements and the like including complete removal of existing surfaces by brushes/ mechanical grinder/sand papers, making surface rough to hold paint exceeding 10 cm wide all as specified and as directed using mechanical pavement marking machine including necessary DG Set required to operate the machine. Complete scraping / removal of existing paint deemed to be inclusive in the above quoted rate. Make of road marking paint : M/s Asian paints, M/s Shalimar Paints, M/s Johnson and Nicholson, M/s Berger paints,

Note :- (i) During weekdays site will be available for approximate 4 to 5 hours du+B19e to aircraft movements such as landing/takeoff.

(ii) During weekend days site will be available for 5 to 6 hours. Contractor shall consider the above points while quoting the rate and no extra payment shall be claim by the contractor on account of this.

Applying one coat of water based paint of black colour on runway/taxiway/apron or other airfield markings of any size and length including letters and numeral markings with suitable mechanical pavement marking machine, including removal of existing complete painted area and cleaning of the area by means of wire brushes/ mechanically complete and removal and surfaces not exceeding 10 cm wide where directed and all as specified and as directed.

M/L for applying Epoxy primer @ 0.45Kg/Sqm over old epoxy surfaces.

Cutting the rigid and fleible pavement portion above and below the RCC cover slab edge shall be cut in straight line ane vertically by using diamond cutter including demolition of cement concrete reinforced of any description and in any postion and making good as same surface

Form work to soffits of suspended slabs such as roof slabs, floor slabs, landings and similar work exceeding 200mm thick finished fair all as directed.

Form work to sides of concrete foundaions, footings, bases of columns, rafta and raft beams, sides and soffits of foundation and plinth beams and work vertical or to better finished rough all as directed.

Form work to faces of walls, retaining walls, abutments, parapets and similar work including attached pillasters, buttresses etc vertical or to better finished fair all as directed.

TMT bars 10mm dia and over cut to length, bent to shape required, including cranking, bending spirally for hooping for walls beams and slab etc, hooking ends and binding with and including mild steel wire (annealed0 not less than 0.9mm dia all as directed.

Reinforced Cement Concrete 1:1½:3 using 20mm graded stone aggregate as in foundation for drain and the like all as specified and as directed.

Reinforced Cement Concrete 1:1½:3 using 20mm graded stone aggregate as in walls for drain and the like any thickness all as specified and as directed.

Reinforced Cement Concrete 1:1½:3 using 20mm graded stone aggregate as in slabs on drain wall and the like all as specified and as directed.

Note for items 59 to 61 : Necessary form work and reinforcement shall be measured and paid separately vide relevant items of this schedule

Preparation of old painted plastered of brick/stone/concrete surfaces of any description, over 10 cm width or girth, not otherwise described and applying one coat of synthetic enamel paint (ordinary tint) complete all as specified and directed.

Preparation of old painted plastered of brick/stone/concrete surfaces of any description, over 10 cm width or girth, not otherwise described and applying two coat of synthetic enamel paint (ordinary tint) complete all as specified and directed.

Note for item No 63 & 64 :- (a) All synthetic enamel paint, plastic emulsion paint shall be of 1st quality manufactured by the standard firms of make as specified.

(b) The contractor shall inform the GE, within three weeks of the acceptance of the tender, the brand/names of the manufacturers of paint proposed to be used in the works and submit samples thereof and obtain prior written approval of GE before their use in works.

(c) The contractor shall when so required by the GE, produce certificate from the manufacturer or their representative to establish that the brands of paints purchased by the contractor from them, satisfy the requirements of the relevant Indian Standards. Tint of paint, will be approved by the GE.

(d) Paints shall be obtained direct from approved manufacturer or from their authorized agents only of respective brands mentioned below and brought to site in sealed containers. The paint so procured shall be of first quality of any approved make as per list of makes specified. i. Berger Paints (Luxol), ii. Jenson & Nicholson (Brolac), iii. Shalimar Paints(Superlac), iv. Goodlass Nerolac (Nerolac), v. Asian Paints(Apcolite)

(e ) Unless otherwise specified the tints of paint shall be as approved by the GE

(f) The contractor shall submit samples of the paints proposed for the work along with results of tests conducted in approved laboratory as directed by the Engineer-in-Charge for approval.

(g) The surface shall be thoroughly cleaned and dusted. All dirt scales oil and grease shall be thoroughly removed before painting is started. The prepared surface shall be inspected and approved by the GE before painting is commenced. The weather shall not be foggy/rainy, dusty or windy. The suitability of the weather will be determined by the Engineer-in-Charge.

(h) No hair marks from the brush or clogging of paint buddles shall be left on the work. Surface shall ordinarily not be painted until it has dried up completely. Trial patches of paint shall be laid at intervals to check if drying is satisfactory.

Applying one coat of water based paint of yellow colour on runway/taxiway/apron or other airfield markings of any size and length including letters and numeral markings with suitable mechanical pavement marking machine, including removal of existing and cleaning of the area by means of wire brushes/ mechanically complete and removal where directed and all as specified and as directed.

Chipping and neatly cutting of existing loose concrete of crack at Runway/taxi track/Pavement by using saw cutter. Cutting of crack portion shall not be less than 100 mm wide and 45 mm deep and clearing of all loose material with air blower/sand blaster and the portion applying proprietory primer on surface to obtain tack and finally fiiled by Elastomeric concrete mix shall be prepared as per manufacturer instruction to obtain true surface and finally set the surface with hand tools complete all as specified and directed. Make:-M /s Fosroc Chemicals - Patchroc Chemicals, M./s STP Limited- ShaliPatch.and M/s Choksey Chemicals Pvt Ltd. -Flex 0 patch.

Note :- The tenderer shall take into consideration the following points while quoting rate for above item:-

(a) Providing masking tape at joints/ on edge of cutted portion and necessary formwork required if any at spalled joints edge to prevent accidental spillage of concrete on top surfaces to give a neat finish. The rate deemed to be inclusive.

(b) The rate deemed to be included for making good to distrubed portion of joint filling around the area where material are applied.

(c) Material shall be procured from the authorised manufacturer only.

(d) The work shall be carried out through authorized and qualified applicators of the manufactor only in presence of departmental and user representative.

(e) Electric supply shall be arranged by the contractor at its own arrangements and rate deemed to be inclusive.

(f) The contractor shall adhere to time frame as per the user's requirement and as per demand. The demand and the location of work will be intimated to the contractor either by rep of User/ MES rep well in advance. Incase of failure to attend the demand in in time, penalty will be levied for each day @ Rs. 1000/- for non completing the requirement till completion of work. Note that this penalty is exclusively other than condition 56 of IAFW-2249 and shall be treated as interim condition of the contract.

The nature of work is related to Flight safety. Hence no delay is acceptable.

The decision of the Accepting Officer in this regard shall be final and binding.

Mild steel framed work such as grills,gratings and similar work etc with end of bars shouldered and or riveted or forged in spies complete conforming to Fe-290 Gde E-165 including dismantling existing steel complete all as specified and directed.

Forming construction joint, 25mm deep and 8 mm wide in repairs (using diamond cutter), applying one coat of white wash to the exposed vertical faces of slab, providing polyethylene rod 10mm dia and sealed with Polyurethane sealant (Minimum depth above polyethylene rod shall be of 10 mm) complying with BS: 5212 (For type 'FB' fire & fuel resistance) & BS : 4254 and EN-141875 - 2003 (For hydrolysis / water resistance test), priming the sides, minimum movement accommodation factor (MAF)±30% with ten years performance guarantee) and applying masking tape on edge of joint to prevent accidental spillage of sealant on top surfaces to give neat finish to the sealant and removing the masking tape after sealant is applied by mechanical means complete all as specified and directed.

Forming contraction (Dummy) joints, cutting with diamond cutter to a depth of 100 mm and 3mm wide in repairs initially and top 25mm portion cut to 8mm wide to accommodate polyethylene rod 8mm wide and sealant , provision of closed cell polyethylene rod of 10 mm dia sealed with (10mm depth minimum above polyethylene rod) polyeurethane sealant complying with BS 5212 (For type 'FB' fire & fuel resistance) & BS 4254 and EN-141875 - 2003 (For hydrolysis / water resistance test) priming the sides with two coats and with minimum MAF ± 30% (with ten years performance guarantee) and applying masking tape on edges of joint to prevent accidental spillage of sealant on top surfaces to give neat finish to the sealant and removing masking tape after the application of sealant by mechanical means all as specified and directed.

Forming 25 mm thick expansion joint, filled with compressible synthetic filler board, on top of filler board for complete width of joint, provision of closed cell polyethylene rod 30 mm dia, filled with polyurethane sealant (Minimum depth above polyethylene rod shall be of 10 mm) complying with BS-5212 (For type 'FB' fire & fuel resistance) & BS-4254, and EN - 141875 - 2003 (for hydrolysis / water resistance test) priming the sides, with minimum MAF ±30 % (with ten years performance guarantee) and applying masking tape on edges of joint to prevent accidental spillage of sealant and removing the masking tape after sealant is applied by mechanical means in repairs all as specified and directed.

Neptune Engineers and Builders

T C KARUNANITHI

A.GOVINDARAJ

p.chinnasamy

D.R ASSOCIATES

G Perumal and co

M R Govinda Reddy and Sons

SUPER COOL

KUMAR AGENCIES

RAVI ENTERPRISE