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| 1 | Material and labour for preparation of existing bituminous (black top) surfaces by wire brushing to remove adhered mud and encrustations, sweeping with brooms and final cleaning by mechanical air blowers to remove all loose dirt, complete. applying Polymer Modified Emulsion (PME) with mineral filler in two coats as per manufacturer’s instructions, using approved mechanical spraying equipment and as per Technical Descriptions note B below complete all as specfied and as directed.(a) First coat shall be applied @ 1.20 litres per Sqm comprising 0.60 litre undiluted PME diluted with 0.60 litre water (1:1) and mixed with mineral filler as recommended, applied uniformly by spraying/mopping using specially designed mopper, ensuring penetration of 10–20 mm, Initial setting time shall be 4–5 hours and not exceeding 8 hours. (b) After complete drying and setting of first coat, second coat shall be applied @ 0.80 litre per Sqm comprising 0.40 litre undiluted PME diluted with 0.40 litre water, mixed with mineral filler and applied uniformly complete all as per manufacturer’s instructions as specfied and directed by Engineer in Charge. |
| 2 | Notes: A The tenderer shall take into consideration for the following points while quoting his rate for this item and his quoted rates shall be deemed to be included the following:-(a) Using of PME Material having quick drying capacity and shall be provide atleast two spray trucks for application of PME at site.(b)Any Hampering/Stoppage of works due to ATC/Flight movement/any miscellenous reasons shall be borne by contractor and accordingly the works shall be stopped. No claim shall be made by contractor.(c) The work shall be carried out by authorized & qualified applicators of the manufacturer as approved by E in C.(d) Friction parameters shall be between 0.35 to 0.60 after application of PME. (e) Contractor will make necessary arrangements for procurement of Portable Skid Resistance Tester (PSTR) and carry out necessary testing as directed without any extra cost to the department. Skid resistance will be perform by the contractor without any extra cost at every 5000sqm (maximum) as directed by GE/Engr-in-charge. |
| 3 | (f) Two year warranty of material performance and application performance shall be obtained from the manufacturer of PME. Warranty will include the fact that structure will remain water tight and no further cracks will be formed, excluding damage caused by natural calamities.(g) Permeasbility test (ASTM D 2434) to be conducted on the surface prior and after to application of treatment.(h) A performance guarantee certificate for two years shall be submitted by the contractor to the GE on completion of work as specified.(j) Any number of trials patches of dimension 15mx15m at selected places for application of PME as directed by GE will be undetaken before commencement of treament.(k) Friction parameters, permeability parameters to ensure zero porosity, penetration of PME after application of both coats and micro and macro textures will be determined through relevant testing methods as directed by GE/Engr-in-Charge. (Qty. will be measured and paid under relevant items of first coat and second coat of PME.(l)Care shall be taken to fill gaps/cracks up to 3mm size with mineral filler as per manufacturer’s instructions. (m) Application of PME shall be done under the supervision of manufacturer\"s technical experts. |
| 4 | (n)The application of PME should be carried out on a clear day to avoid mixing of rain water with the PME based emulsion.(o) Provision of Rubber removal will be perform by AAI (Airport authority of India) well in advance which will be coordinated by GE and concered engr in charge and only thereafter PME works will be carried out as per scope of works.Notes : B As per E-in- C br dirns vide policy letter No 95610/Policy/116/E2W (RI-I) dt 23 Mar 2017, the spraying machine used in the works as per designed to mix PME, water and mineral filler to convert it into fine homogenous compound for application. The technical details and description of the spraying machine is as under:-(i) PME-Rejuvenator Mixer tank capacity ranging from 600 litres to 1400 Litres.(ii) Batch (PME- Rejuvenator and mineral filler) of capacity ranging from 450 litrs to 1250 Litres(iii) Machine output per hour 500-1000 Sqm per hour.(iv) Total connected pump power 10 HP -20 HP(v) water feeding system through 1 HP self priming moon set pump.(vi) Load cell based digital weighing system with digital display batch controller.(vii) Gear Ring & Rollers are accurately machined with gear cutting operation supported by heavy duty twin rollers to prepare homogenous mixtures.(viii) Microprocessor panel with digital control. |
| 5 | Notes : C -(i) Runway painting area i.e. Centre line,touch down zone,side stripe marking aiming point and all painting area will be covered before PME application.It will be ensured that the covering is not disturbed during application of PME. (ii) Runway centre line lights,touchdown zone light,runway edge light and other lights will be covered during application of PME and any damage to the existing lights will be made good without any extra cost to the Govt.(iii)The Area of these runway paintings mentioned in note C(i) above will not be considered in measurements offrom the area of PME application. |
| 6 | M&L for bringing approved earth (as approved by GE) from outside MoD land including all costs such as royality if any ,transportation, taxes, etc , filling & forming embankments at locations inside the Technical area as directed by Engineer in charge including all Tool and plant complete as specified and directed . |
| 7 | Forming emabankments of earth fill over the existing structures including raising (or lowering) earth spreading in layers n.exc 25 cm thick each layer , watering ramming/rolling by mechanical means to achieve 98% dry density and finishing to required size, gradient/slopenot exc 1.5 m high from base point complete all as specified and directed by Engr in charge. |
| 8 | All as per description of serial item no. 6 here in before butexc 1.5 m and not exc 3.00 m high from base point complete all as specified and directed by Engr in charge. |
| 9 | All as per description of serial item no. 6 here in before butexc 3.00 m and n exc 4.5 m highfrom base point complete all as specified and directed by Engr in charge. |
| 10 | All as per description of serial item no. 6 here in before butexc 4.5 m and n exc 6.00 m highfrom base point complete all as specified and directed by Engr in charge.Note for item no.6 to 9 :- (i) Approved earth brought from outside defence land vide item no. 6 here in before shall be used for forming embankments. (ii) The Intiallevels shall be taken before forming embankments and kept on record duly signed by GE ,AGE and Contractor similarly Final levels will be taken after forming amendments and kept on record duly signed bu all concerned.(iii) The measuremnets in plain and hill/slope terrain will be recorded adopting suitable rectangular section as decided by GE in writing. |
| 11 | Providing and operating two Tractors (with driver) with Jungle Jim for removal of grass shrubs / vegetation, scraping / cutting or ploughing with harrow/ cultivator) on requirements basis (within 48 hrs of notice / demand) including two casual labours / day for removing the rubbishfrom site to out side MoD land complete all as specified and directed. Note: (I) Providing and operating two tractors with jungle Jims alongwith drivers including two labourers shall be measured as one uniti.e one Hour.(II).In caseonly one tractor(with driver with jungle jims and one labour is required and deployed, the payment under this item shall be reduced by 50% i.e half unit shall be considered against one hour working. |
| 12 | Providing and operating two Bush cutter (with Operators) with Bush cutter Blade for grass shrubs/ Vegetation scraping/cutting on requirement basis (within 48 Hrs of notice / demand) and removing the rubbish outside MoD land, complete all as specified and as directed. |
| 13 | Demolition of brickwork / brick masonry, built in cement or cement lime mortar , including all quions, arches, pillars etc, but excluding ashlar facings, dressed stonework and precast concrete articles, complete all as specified and directed. |
| 14 | M&L for Brick work with sub class ‘B’ bricks, straight or curved on plan exceeding 6 metre mean radius in cement mortar (1:6), using old size bricks, complete all as specified and directed. |
| 15 | All as per description of serial item no. 14 here in before but except bricks complete all as specified. |
| 16 | M&L for Rendering 15 mm thick onbrick work or concrete surfaces in CM 1:4 finished even and smooth, without using extra cement including taking down old plastered surface complete all as specified and directed . |
| 17 | M&L for preparation of newly plastered or un plastered surfaces of walls of any description and applying three coats of white wash complete all as specified. |
