REPAIR / MAINT TO NLB AREA OF MRW, SUBSIDARY RUNWAY, PTT, TAXI LINK, BAY MARKING, CRACK FILLING AT FLEXIBLE/ RIGID AREA AT RUNWAY AND OTHER AREAS OF AIRFIELD

Amount

SCHEDULE A BOQ

Note for all items of this BOQ :-

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

Due to continuous Flying commitment at Sulur Station, site for execution of work will be available only on Saturday, Sunday, Holiday and non flying days as decided by the ATS authorities.

The tenderer has to arrange his working programme accordingly.

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

No claim 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 above mentioned aspects.

M&L Carrying out skid resistance test (SRT) on flexible and rigid pavement by using british pendulum SRT device and the test shall be carried out in grid pattern of 5m x 5m. The reading shall be taken on dry surface and wet surface condition at each point of surface, five reading shall be taken on each point and average shall be considered. Approximate area is 150000 sqm. Frequency of test shall be decided by air force authorities. Test standard and test procedure are mentioned in airport service manual, to find out the coeffcient of friction of runway before and after the treatment. The report shall be prepared and to be submitted duly recommendation with remedial measures in five copies alongwith photographs.

Note for item No 9:- The T&P like british pendulum SRT device and manpower required to execute above job shall be arranged by the contractor and no extra cost will be paid for the same.

M&L 100 mm thick PCC 1:2:4 type B- 1 using 20 mm graded stone aggregate, as in flooring/paths/paving etc laid in panels , surface finished even and smooth without using extra including making 10mm joints to the 40mm depth of PCC at every 3 metres and at every change of direction and filling the same with & including bitumen and sand 1:2 sealing compound by weight complete including demolish existing concrete and disposal to outside MD land all as specified and directed

Note for item No 11 :- The concrete shall be laid at a stretch not exceeding 3 metre in length and width of joint shall not be more than 12 mm.

M & L Preparing of old black top surfaces by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surfaces using air blowers to remove all loose dirt etc complete and applying cold Polymer Modified bitumen Emulsion (PME) Rejuvenator by spraying with machine of total liquid PME 1.00 Ltr per sqm (undiluted) for two coats with mineral filler as recommended by manufacturer of PME (after diluting with water), each coat diluted in the ratio 1:1 (PME : Water) and ensure uniform finish of PME on Runway surface.PME shall be applied using mechanically operated pump with compressor and nozzle arrangement at uniform pressure and rate, all as per manufacturer instruction and all as specified and as directed by Engineer-in-charge.

Note for item No 13 :- The tenderer shall take into consideration for following points while quoting rate for above item:-

(a) Due care shall be taken for friction parameters during application of PME as per ICAO standard and friction test shall be carried out on newly PME applied surface by using continous friction testing machine.

(b) Friction parameters shall be between 0.3-0.6 after application of PME. It will be the responsibility of the tenderer to arrange portable skid resistance Tester (PSTR) and carry out necessary testing as directed without any extra cost to Govt

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

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

(e) Two year warranty of material performance and application performance shall be obtained by the tenderer from the authorized manufacturer of PME and the same shall be submitted to GE on completion of work as specified . Warranty includes the fact that the structure will remain water tight and no further cracks will be formed, excluding damage caused by natural calamities. Permeability test (ASTM D 2434) to be conducted on the surface prior and after to application of treatment.

(f) A performance guarantee certificate for two years shall be submitted by the tenderer to GE on completion of work as specified.

(g) care shall be taken to fill gaps/cracks up-to 3mm size with mineral filler as per manufacturer's instructions.

(h) Mineral filler (fibrous cum quartz powder) shall be added as per manufacturers instruction.

(j) Electric supply shall be arranged by the tenderer at its own arrangements and rate is deemed to be inclusive.

(k) The tenderer 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 tenderer either by rep of User/ MES rep well in advance. In case of failure to attend the demand in in time, penalty will be levied for each day @ Rs. 1000/-per day for non completing the requirement till completion of work. This penalty is exclusively other than condition 56 of IAFW-2249 and shall be treated as interim condition of the contract.

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

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

(n) minus price adjustment shall be applicable if quantity of PME using less than specified and the rate shall be worked out based on paid voucher and market enquiry.

(o) plus price adjustment shall be not applicable if quantity of PME Applied more than specified as per surface conditon is required.

M&L Applying one 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 Johnson and Nicholson, M/s Berger paints,

Note for item No 30 :- (i) During weekdays site will be available for approximate 4 to 5 hours due 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.

M & L applying two coat of water based paint of black colour 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.

M&L Cleaning of existing cover drain / open drain of any width and depth upto 15 cm by using jet water pressure mechanical pump,suction pump and removing mud/silt, vegetation growth, plants/small trees etc to a distance 50m , including repairing cracks in cement mortar (1:3) where noticed in surface of drain all as specified and as directed.

Note for item No 34 :- (a) The work to be executed in highly restricted area.

(b) The unit rate is deemed to be included for removing of accumulated earth of any width and depth upto 15 cm cleaning/cutting the grass with hand operated petrol/kerosene driven grass cutting machine and removing the grass waste around 1m from both side of the drain to outside MD land Note: Periodicity of cutting of grass shall be before commencement of work and after completion of repairs.

(c) The unit rate deemed to be considered for First Aid and necessary safety arrangements equipment’s to be provided by the tenderer for workman.

(d) The tenderer 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 either by the rep of user/ MES rep well in advance. In case of failure to attend the demand in time penalty will be levied for each day @ Rs 500/ for non-completing the requirement till completion of work. The nature of the work related to Airfield maintenance, hence the delay is not acceptable.

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

Note for item No 39 :- 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.

RUNPHALT' bitumen tubing/ rope for filling of cracks on the runway width of crack 8mm to 10mm with the help of screw driver pushing it inside the crack then apply direct flame 20-30 second through torch method complete all as per manufacturers instruction and as directed by Engineer-in-Charge Make:- M/s Srijan System PVT Ltd or equivalent as approved by GE

M&L Retro Reflective tape in any pattern, shape/number/letters on old existing boards after cleaning including removing of existing letters/tape complete all as specified and directed.

Surface dressing of soft/loose soil n.exc 15 cm deep etc and all as specified and directed.

M&L Levelling of runway shoulders with grader mechanical machine and rolling of surface with road roller of capacity 8-10 tonne, including removal of boulders and other materials obtained from area and all as specified and directed.

Note for item No 44 :- (a) The contractor shall adhere to time frame as per the user's requirment and as per demand. The demand and the location of work will be intimated either by rep of User/ MES rep well in advance.

(b) In case of failure to attend the demand in time penalty will be levied for each day @ Rs 1000/- for non completing the requirment 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.

(c) The decision of Accepting Officer in this regard shall be final & binding.

(d) The nature of work is related to Air Field maintenance. Hence delay is not acceptable.

M&L RolIing and consolidating formation surfaces in cutting/ filling to the required gradient and camber including filling in depression and hollow, watering, leveling etc., complete using tandem vibratory/ power roller exceeding 8 tonne and not exceeding 12 tonne capacity all as specified and as directed.

Note for Item No 49 :- Rolling and consolidation the formation surfaces to the required gradient and camber under optimum moisture conditions to achieve at least 98% of maximum dry density determined using modified proctor density determination method as per relevant IS code.

M&L Moorum/red bajri filling including spreading and levelling in layers not exceeding 15 cm thick, spread, levelled and rammed Including watering and rolled to true surfaces with 8 to 12 Ton capacity power roller to achieve compaction of 98% modified proctor density complete all as specified.

Note for Item No 51: (i) Moorum/red bajri required shall be brought from outside MD land

(ii) Compaction of moorum filling shall be carried out under optimum moisture conditions up to the standard proctor density not less than 98 percent.

(iii) Measurements shall be taken after consolidation earth and 5% deduction shall be made for payments.

M&L repairs to runway cracks by using ''RUNPHALT' bitumen tubing/ rope for filling of cracks on the runway, width of crack 5mm to 7mm with the help of screw driver pushing it inside the crack then apply direct flame 20-30 seconds through torch method complete all as per manufacturers instruction and as directed by Engineer-in-Charge.

M&L for applying Epoxy primer @ 0.45Kg/Sqm over old epoxy surfaces all as specified and as directed.

M&L Filling the cracks in flexible pavement surface of any size by applying bitumen emulsion @ 0.50 litre per running metre and filled with paste by mixing quartz sand, sand, cement and emulsion in the ratio of 1:10:0.50 and shall be applied in one or two coats to ensure complete filling of the cracks in line with existing pavement strucures complete all as specified and as directed.

M&L for repairs to pavement by cutting the existing concrete slab by machine to a length of damaged portion with an average depth of 30-40mm and average width of 25-50mm, trimming the surface and application of resin formulation in following two stages as given below including preparation of surface complete :-

(a) First stage consists of application of a primer coat with epoxy resin of mix with formulation of 100 parts of Araldite GY 257 (dipenny 101 propane epichorihydrin) and 50 part of Hardner Hy 140 by weight.

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

Note for item No 58 to 60 :- 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. )

M&L Repair to existing construction joints of flexible pavement of size 10 to 20 mm wide and 25 cm depth (average) consisting of following activities complete all as specified and directed.

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 for item No 62 to 66 :- (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.

Remove the existing damaged filled sealing compound including polyethylene rod by raking end using blow lamp and cleaning of expansion/construction/dummy joints of concrete pavement free from dust and applying masking tape on edge of joint to prevent accidental spillage of sealant on top surfaces to give a neat finish to the sealant,provision of polyethylene backup rod 10-14 mm dia in construction/dummy joint and sealed with COLPOR 200 polyurethane based sealing compound 10-12 mm thick above back up rod confirming to BS 5212-1990 or equivalent of approved colour after application of suitable primer and removing the masking tape after the sealant filling etc complete all as specified and as per manufacturers instructions. The size of the joint is 8 to12mm wide for construction/dummy joint.

Note for item No 69 :- (a) The existing sealant compound shall be taken out completely using blow lamp and joint shall be cleaned with wire brush and loose particles dust etc shall be removed by using hand pump before applying primer.

(b) Any spillage of material during filling over the slab shall be removed and cleaned by contractor and any damage accrue to the concrete slab will be made good by the contractor without any extra cost to the department.

(c) 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.

M&L Cutting, removing damage portion of concrete surface in square/ rectangular shape for a minimum depth of 15mm, cleaning the surface with wire brush or cloth and removing the dirt including the wetness and dampness by means of dryer and supply and laying geo polymer based "Geo Krete - HD of Make eco materials or equivalent in Fosroc chemicals/ Tiki Tar/ M/s STP Limited/sika india pvt ltd rapid setting curing free semi levelling structural mortar of single compound activated by water for quick construction & levelled the surface to match with existing surface all as per manufacturer’s instructions as specified & directed. The geopolymer based water impermeable concrete resurfacing mortar shall have compressive strength of 15 M Pa in 2 hours and 50 M Pa in 28 days without any water curing and curing compounds having a water penetration of less than 2 MM when tested as per DIN 1048 and RCPT valve of less than 800 coloumbs when tested as per ASTM C 1202.

Note for item No 73 :- The tenderer shall take into consideration the following points while quoting rate for above item:-

(a) The rate deemed to be included for making good to disturbed portion around the area where material are applied.

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

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

M & L for Remove the existing damaged filled sealing compound including polyethylene rod by raking end using blow lamp and cleaning of expansion/construction/dummy joints of concrete pavement free from dust and applying masking tape on edge of joint to prevent accidental spillage of sealant on top surfaces to give a neat finish to the sealant,provision of polyethethylene backup, rod 15-20mm dia in any type of joint and sealed with 10-12 mm thick polyurethane based sealing compund confirming to BS 5212-1990 or equivalent of approved colour after application of suitable primer and removing the masking tape after the sealant filling etc complete all as specified and as per manufacturers instructions. The size of the joint is 12 to 18 mm wide for any type of joint

Description all as per item No 78 above but polyethethylene backup, rod 20-28mm dia in any type of joint and sealed with 10-12 mm thick COLPOR 200 polyurethane based sealing compound confirming to BS 5212-1990 or equivalent of approved colour after application of suitable primer and removing the masking tape after the sealant filling etc complete all as specified and as per manufacturers instructions. The size of the joint is 18-25 mm wide for any type of joint

Note for item No 78 & 79 :- (a) The existing sealant compound shall be taken out completely using blow lamp and joint shall be cleaned with wire brush and loose particles dust etc shall be removed by using hand pump before applying primer.

(b) Any spillage of material during filling over the slab shall be removed and cleaned by contractor and any damage accrue to the concrete slab will be made good by the contractor without any extra cost to the department.

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.

M&L Filling the pit holes in concrete surfaces of size n exc 15mm in dia and 20mm in deep by using a mixture of quartz sand No 9 -450 parts by weight, Hardner Hy 140-50 parts by weight and araldite GY 257-100 parts by weight to form a hard paste and filling the pit holes after cleaning the dust particles with blower and applying primer coat with epoxy resin of mix with formulation of 100 parts of araldite GYZ 57 and 50 parts of hardner Hy 840 by weight and ramming with hammer to make a uniform surface to match with the existing concrete surfaces all as specified and as directed.

Note for item No 83 :- (a) Contractor shall provide 02 Nos of skilled manpower to execute the job on as required basis all as per directed by Engineer in charge.

(b) A pucca register shall be maintained by the contractor and signature of Engr -in-charge and air force authorities to be obtained daily to authenticate the presence of labourers. payment will be made on day basis. This register will form part of RAR/final bill for making the payment.

(c) 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 either by rep of User/ MES rep well in advance. Incase of failure to attend the demand in time penalty will be levied @ Rs. 500/- per day 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.

(d) The nature of work is related to Runway Maintenance. Hence no delay is acceptable.

(e) The decision of the Accepting Officer in this regards shall be final and binding.

M&L Chipping out neatly and 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 25 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 filled 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 for item No 89 :- The tenderer shall take into consideration the following points while quoting rate for above item:-

(a) Providing masking tape at joints/ on edge of cut 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 quoted rate is deemed to be inclusive of this provision.

(b) The rate is deemed to be included for making good the 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 manufacturer only in presence of departmental and user representative.

M & L Rendering 10mm thick on fair face of brick or concrete surface in cement mortar 1:4 finised even and smooth with out using extra cement including taking down existing plastering complete all as specified and as directed.

M&L excavation and removal of deposited spoil/silt and any type soil in foul position from the existing storm water drainages of size exc 1.50 m but not exc 3.00m wide and depth not exc 3.00m by getting out including removal of sludge /silt/soil outside MD land to a distance exc 1.50 Km but n. exc 5.00 Km and depositing where directed.

Note for item No 96 :- (a) The work is executing in highly restricted area.

(b) The work is also involved in certain portion covered with nallah and likely having poisonous snakes with bushes / grass. The unit rate deemed to be included for taking necessary precautions with First Aid and necessary safety equipment’s such as masks/ oxygen require to be provided to the labour to execute work in nallah portion.

(c) The unit rate is deemed to be included for removing of accumulated earth and cleaning/cutting the grass with hand operated petrol/ kerosene driven grass cutting machine and removing the grass waste around 1m from both side of the drain to outside MD land.

(d) The tenderer shall adhere to time frame as per the user’s requirement and as on demand. The demand and the location of work will be intimated either by the rep of user/ MES rep well in advance. In case of failure to attend the demand in time, penalty will be levied for each day @ Rs 500/- per day for non-completing the requirement till completion of work. The nature of the work related to Air Force maintenance, hence the delay is not accepted.

M&L in repairs of mooring rings by making circular hole of dia 200 mm and depth 50 mm in to M40 concrete, cut to shape using concrete by DCH 300 of HILTI DD 200 machine (water cooled), making holes 2 Nos of dia 24 mm and depth 200 mm using TE 70 combi hammer, grouting the holes with HILTI HY 150 injection chemical for 2 holes (Approx 100 ml per hole) & fixing of inverted U shaped 20 mm dia round bars (Mooring Ring) with a minimum of 200 mm anchorage in to concrete and filling up the circular portion of 200 mm dia after grouting the re-bar using solid grout with high flow non-shrink cementious grout "conbextra" after applying a bonding coat using 'Nito Bond EP' as per manufacturer's instructions including 80 mm outer dia ring made out of 16 mm MS round bar fixed into U shaped 20 mm dia bars and painted with two coats of synthetic enamel paint over a coat of zinc chrome primer to exposed surfaces of round bars etc complete all as directed.

M/s CECILROMAN and Co

SARASWATHI CONSTRUCTION

jk construction

KRISHNA ENTERPRISES

Neptune Engineers and Builders

kaarthic builders

G Perumal and co

Lucky Enterprises