REPAIR TO CRACKS IN DISPERSAL JOINT FILLING AND OTHER 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 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 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.

Carrying out skid resistance test (SRT) on flexible and rigid pavement by using british pendulum SRT device, 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 :- The british pendulum SRT device and manpower required to carry out above job shall be arranged by the contractor and no extra cost will be paid for the same.

Remove the existing damaged filled sealing compound including polyethylene rod by raking end using suitable equipment and cleaning of joints of Bitumen pavement in full depth, 15-20cm deep and clean the joint properly to make free flow for water to drainout easly from the joint and 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 mm to 15 mm dia in joint and sealed with polyurethane seleant based or equivalent sealing compound, 10 mm-12mm 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 8mm to12mm wide for construction/dummy joint.

Note:- (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. or CHOKSEY .techseal PU-2

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.

'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

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 :- 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 rep.

Demolition of brickwork or stone/boulder masonry built in cement mortar including all quoins, pillars etc complete all as specified and directed.

Demolition of un-reinforced cement concrete not exceeding 15cm thick below or above ground level all as specified and directed.

Plain cement concrete (1:4:8) type D2 (40mm graded stone aggregte) as in foundation, filling and mass concrete all as specified and directed

Rendering 15mm thick on fair face of stone surface in cement mortar 1:6 and 5 mm thick floating coat in cement mortar (1:4) mixed with water proofing compound finised even and smooth with out using extra cement including taking down existing plastering complete all as specified and as directed.

Note for item No 26 :- Water proofing compound shall be measured and paid seperately.

The unit rate quoted is deemed to 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 3 m from plinth protection to outside MD land Note: Periodicity of cutting of grass shall be before commencement of work and after completion of repairs.

Supply only water proofing compound

Brickwork with flyash bricks, straight or curved on plan to any radius built in cement mortar (1:6) all as specified and directed

Rendering 10mm thick on fair face of brick or concrete surface in cement mortar 1:6 and 5 mm thick floating coat in cement mortar (1:4) mixed with water proofing compound, finished even and smooth with out using extra cement, complete all as specified and as directed

High srengthTMT steel bar of grade Fe-500D, 10mm dia and over cut to length bent to shape required including cranking bending spirally for hooping for columns, hooking ends and binding with mild steel wire (annealed) not less than 0.90 mm dia or securing with clips complete all as specified and directed.

Precast cement concrete 1:2:4 type B1 (using 20 mm graded granite stone aggregate in landings, cover slabs (for manhole etc) shelves and similar articles with plain faces and set in cement mortar 1:4 including taking down and removing rubbish material to outside MD complete all as specified and diected.

Rendering 10mm thick on fair face of brick or concrete surface in cement mortar 1:6 and 5 mm thick floating coat in cement mortar (1:4) mixed with water proofing compound, finished even and smooth with out using extra cement including taking down existing plastering complete all as specified ad as directed

Plain cement concrete 1:2:4 type B1(using 12.50mm graded stone aggregate) as in coping including necessary form wok all as specified and directed

Removing excavated material (soil) to a distance exceeding 50M but not exceeding 150M and depositing where directed at a level n.exc 1.5m above the starting poin complete all as specified and as directed.

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.

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

Note:- (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.

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).

'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. Make:- M/s Srijan System PVT Ltd or equivalent as approved by GE

Stone Boulder pitching, hand packed tightly and grouted in CM 1:6 including demolition of existing stone work and removing from site to out side MD land.

Retro Reflective tape in any pattern, shape/number/letters on old existing boards after cleaning and removing of existing letters/tape 1 mm thick diamond pattern and size of letter approximate size 340 mm wide and 450 mm height as directed and specified.

Levelling of runway shoulders with graider 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 : (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.

(c) The decision of Accepting Officer in this regard shall be final & binding. (d) The nature of work under is related to Air Field maintenance. Hence delay is not acceptable.

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

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

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:- (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.

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, or as approved by GE.

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.

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 tress etc to a distance 50m , including repairing cracks in cement mortar (1:3) where noticed in surfcace of drain all as directed and specified.

Note :- (a) The unit rate 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.

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:- (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.

Applying two 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.

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.

Note:-(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 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 @ 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.

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 20-25mm dia in any type of joint and sealed with 10-12 mm thick COLPOR 200 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 mm wide for any type of joint

Note:- (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.

Neptune Engineers and Builders

A.GOVINDARAJ

CAK Enterprises

eurekaenterprises

KUMAR AGENCIES

T C KARUNANITHI

NAVEEN ENTERPRISES

p.chinnasamy