REPAIR MAINT TO CRACKS IN RUNWAY KERF CUTTING LEVELING OF SHOULDERS AND CERTAIN MISC WORKS IN RUNWAY

Amount

SCHEDULE A BOQ

Note for all items of this BOQ :-

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

Due to continous Flying 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 has to arrange his working programme accordingly.

The contractor has to plan the works after liaison with the ATS authorities two days prior and schedule the progress 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 deemed to be inclusive of above mentioned aspects.

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 9 :- 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 Repair to existing construction joints of flexible pavement of size 10 to 20 mm wide and 25 cm depth (average)complete all as specified and as directed. This item consists of following activities:-

Raking out old decayed/damaged existing sealing 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 compound 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 complete all as specified and as directed. 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 back 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 15 to 19:- (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 on its own arrangements and the qouted rate is deemed to be inclusive.

M&L repairs to existing cracks with ''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

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 23:- 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 Applying one coat of water based road marking paint 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 spraying machine including necessary DG Set required to operate machines used for 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 Jenson and Nicholson, M/s Berger paints

Note for item No 25 :- (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 claimed by the contractor on account of this.

M&L Removing 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 20-25mm 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 20 mm wide for any type of joint

Note for item No 27 :- (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 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 :- 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 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 32 :- (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) Incase 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 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 37 :- 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 Cleaning of existing cover drain of any depth any width by using jet water pressure mechanical pump,suction pump and removing mud/silt, vegetation growth, plants/small trees etc to a distance of 50m , including repairing cracks in cement mortar (1:3) where noticed in surfcace of drain all as directed and specified.

Note for item No 42 :- (a) The unit rate is deemed to be considered for First Aid and necessary safety arrangements equipment’s to be provided by the contractor for workman.

(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 work to be executed in highly restricted area.

(d) 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 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.

Material and labour for cleaning the surface with compressed air and brush and making the surface free from dust and applying cold emulsion grade SS2 @ 0.50 litres per sqm undiluted with water in the ratio 50:50 (cold emulsion : water) and ensure uniform finish of runway complete all as per manufacturers instruction complete all as specified and as directed by Engineer-in-Charge. (Make:SN Industries, IOC, HINCOL, HI- TECH Bitumen (HTB), Ooms Polymer Modified Bitumen Pvt Ltd as approved by GE).

M&L Single component 'Aspha-Flo' coal tar free signature grade Gilsonite modified Asphalt emulsion, special polymers and additives streaming crack, joint stuffer to prevent cracks from forming into pot holes and filling of cracks and joints on asphaltic surface of the runway and capable to be applied directly on damp pavement also and coverage shall be 24.20 meter/Ltr for 6mm (width) x 6mm (Depth) crack or 6.05 meter/ L for 13mm x 13mm crack or 2.10 meter/ L for 25mm x 25mm crack complete all as per manufacturer's instructions as specified and directed. Note: Back-up rod to be used in case depth is more than 25mm.

M&L DTGM board black colour 4mm thick acrylic sheets 02 Nos each of size 1.50 x 1.20 M with 100 mm dia air pressure clearance circle 8 Nos on each board including acrylic polishing fixing of retro reflective stickers (red colour) of length 1.00 M and width 0.15 M on each board, fixing the boards to 3 Nos of vertical post of approx height 2.48 M each pipe covered at top, middle, bottom portion with 25mm dia PVC pipes 15 Kgf/Sqcm (IS 4985) fixed with PVC bushes and screws, erecting the frames in GI/MS pipes etc including taking down existing one and complete all as directed by Engr in charge.

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 50 :- 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.

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

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.

M&L Applying two coats 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, or as approved by GE.

Note for item No 54 :- (i) During weekdays site will be available for approximate 4 to 5 hours due to aircraft movements such as landing/take off. (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 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 ''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 second through torch method complete all as per manufacturers instruction and as directed by Engineer-in-Charge.

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: (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 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 numerical 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.

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 60 :- (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 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 25-35mm dia in expansion 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 20 to 30 mm wide for expansion joint.

Note for item No 66 :- (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 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.

T C KARUNANITHI

M/s Shana Constructions

p.chinnasamy

K T ASSOCIATES

devan enterprises

Neptune Engineers and Builders

NAVEEN ENTERPRISES

SARASWATHI CONSTRUCTION

A.GOVINDARAJ

Lucky Enterprises