Military Engineer Services Tender

Excavating over areas exc 1.5m in depth and n exc 3.0 m deep for foundations and getting out in hard / dense soil all as specified and directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm complete in all kind of soils complete all as specified and directed. (Building - 62.54, EES - 52)

Removing excavated material (Soil) exceeding 250m but not exceeding 500m and depositing where directed complete all as specified and as directed.

Excavating in trenches, not exceeding 1.5m wide and not exceeding 1.5m in depth, for pipe line etc. and getting out in soft / loose soil and levelling of bottom surface to required level complete all as specified and directed.

Removing excavated material (Soil) from site to a distance not exc 50 M away and depositing where directed at a level not exc 1.5mtr above the starting point complete all as specified and as directed.

B/R works

M&L Cement concrete 1:3:6 type C-2 using 40mm graded crushed stone aggregate for foundations, fillings and mass concrete all as specified and directed.

M & L Reinforced cement concrete M-30 design mix as in foundations, including rafts, footings, foundation beams; plinth beams; bases for columns, etc.; basement slabs, under-reamed piles and mass concrete and the like complete all as specified and directed.

M & L form work to sides of concrete foundations, footings, bases of columns, raft and raft beams, sides of foundation and plinth beams; and similar work; vertical or to batter for flat rough finished surfaces of concrete all as specified and directed.

M & L TMT bars 10mm dia and over, cut to length bent to shape required incl crancking , bending spirally for hooping for columns, hooking ends and binding with and incl mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

M & L TMT bars 5mm dia and over upto and including 10mm dia as in stirrups, spacers and binders, cut to length bent to shape required incl crancking , bending spirally for hooping for columns, hooking ends and binding with and incl mild steel wire (annealed) not less than 0.9mm dia or securing with clips complete all as specified and directed.

S & F Roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. with Fe 410-W (Gde E- 310 ), quality-A complete all as specified and directed.

S & F Roof trusses (framed), trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (Beam, tee, angle, channel or flat sections) including distance pieces, cleats etc. with Fe 410-W (Gde E- 345 ), quality-A complete all as specified and directed.

S & F Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.71mm thick camouflage coloured pattern from outside and regular coat from inside having tensile strength of 550 Mpa as in roof covering/ cladding to wall, fixed with self tapping screws all as specified and directed.

M&L for preparation of new surface and applying two coat of EPU painting of any description over 10cm girth or width not otherwise described and applying on hanger sheet in camouflage pattern as approved by user/ GE complete all as specified and as directed. Note:- Quoted rate shall be deemed to be included for work in buildings/ structure of any height.

S & F UPVC pipes (SWR) single socketed with rubber ring joints 110mm dia fixed to wall including necessay clamps etc complete all as specified and directed.

S&F UPVC (SWR) bends any radius bore of 110 mm all as specified and directed.

M & L three coats of white wash to old decorated plastered or unplastered surfaces of ceiling including complete removal of existing treatment all as specified and directed.

M & L three coats of white wash to old decorated plastered or unplastered surfaces of walls including complete removal of existing treatment all as specified and directed.

Pavement works

Demolition of Concrete of any description and in any position not otherwise specifically provided for,complete all as specified and directed.

Material & labour for rolling and consolidating formation surface in cutting/filling to required camber using 8 to 12 Tonne earth compactor (power/roller) to 98% of Modified proctor density at optimum moisture content (OMC) complete all as specified and directed.

M & L for laying and compacting 150 mm thick (compacted thickness) Granular Sub Base Course (GSB) grading as per Grade II as per Table 400-1 of MoRTH specifications for Road and Bridge works, 2013, in a single layer over compacted subgrade with natural sand, crushed gravel, crushed stone, crushed slag, or combination thereof as per the grading required. The materials are mechanically mixed, spread and levelling on the subgrade and rolling with vibratory roller of capacity 80-100 KN static weight for achieving required compaction density of atleast 98% of the Maximum Dry Density. Consolidating to required gradient and camber with finished surface tolerances as per Table 900-1 of MoRTH specifications for Road and Bridge works, 2013 complete all as specified and directed.

M & L for laying and compacting 150mm thick (compacted thickness) Wet Mix Macadam (WMM) laid in two layers of 75 mm each WMM grading as per table 400-13 of MoRTH specifications for Road and Bridge works 2013 manufactured in WMM plant, material comprising of clean, crushed, graded aggregate and granular material premixed with water to a dense mass, spreading and rolling with vibratory roller of capacity 80-100KN static weight and consolidating to required gradient and camber with the finished surface tolerance to be as per Table 900-1 of MoRTH specifications for Road and Bridge works 2013 complete all as specified and directed.

M & L for providing and laying Dry Lean Concrete (DLC) 125 mm thick of aggregate gradation as per Table 1 of SP 49:2014 having 7 day average compressive strength not less than 7 MPa. Minimum cement content not less than 140 Kg/Cum DLC mixed in Batching Plant, transported to site and laid by including spreading and compacting using high amplitude tamping bars of paver (initial compaction) further by double drum smooth wheeled vibratory rollers with 80-100 KN static weight to achieve minimum dry density not less than 98% of maximum Dry Density, necessary finishing etc and tolerance to be as per Table 900-1 of MoRTH specifications for Road and Bridge work 2013 complete all as specified and directed.

Note for item No.25 (i) No plus price adustment shall be made to the quoted rate for excess quantity of cement used beyond 140 Kg/Cum. (ii) Longitudinal and transverse construction joints shall be provide as per MORTH specification. The quoted rate shall be inclusive of cutting longitudinal or transverse construction joints includin providing this upto full depth in DLC.

Material and Labour for 10 mm thick sand cushion with clean river sand dust clear of residual, organic and deleterious materials stones/other hard or uneven material organic matter, spread evenly to uniform thickness layer over DLC Layer complete all as specified and directed.

Supplying and laying 400 micron thick HDPE sheet (Virgin Quality) water proof, wrinkle free without puncture having minimum weight 390 gm/Sqm over sand cushion as specified in the design with overlap between adjacent strips as minimum 100mm and at transverse joints at ends as minimum 300mm complete all as specified and directed. Note : The rate quoted above shall include overlaps and no additional amount to be paid for overlap

M & L for 325mm thick pavement quality concrete (PQC) of minimum 28 days field flexural strength of 45Kg/Sqcm or 4.5MPa, aggregate gradation as per Table 3 of IRC 15-2017, coarse aggregate of clean, hard strong, dense, non-porous and durable pieces of crushed stone or gravel, fine aggregates of clean natural sand or crushed stone sand or combination of both using minimum 360 kg/cum of cement with and including non-circular, virgin synthetic fibre of 12-18 mm length specific gravity 1.34 to 1.39, UV stable, alkali resistant, with equivalent dia 15-40 micron, minimum melting temperature as 240O C and minimum tensile strength of 300 MPa and at the rate as specified by the manufacturer. PQC laid, spread and compacted with including curing and tining by Texturing cum Curing machine . Required surface texturing to be done as specified in clause 10.1.14 and Table 9 of IRC 15-2017 complete all as specified and directed.

Notes for item No. 28 :- (i) The admixture as per approved design mix shall be added and mixed.The cost of admixture required shall deemed to be included in the quoted rate. (ii) The Cost of polyester triangular non circular synthetic fibres as secondary reinforcement added and mixed in concrete shall deemed to be included in the quoted rates. (iii) Construction joints, dummy joints (contraction joints) and expansion joints shall be measured and paid separately under respective items. (iv) Deduction shall be made in PQC of quantity for expansion joints. (v) Trimming of vertical edges of construction joint (longitudinal and transverse) shall be carried out using sawing machine to maintain straight edge before laying of adjacent/ subsequent lane. The quoted rates shall be deemed to be inclusive of this provision and nothing extra shall be paid on this account. (vi) For the purpose of pricing this item, the cement content shall be considered as 360 kg/cum. However actual cement content shall be worked out as per design mix and nothing extra shall be paid on this account and extra cement used beyoned 360kg/cum. In case less cement is used minus DO at supply only rate of cement @ Rs 7.00 per kg shall be deducted. (vii) Curing compound shall be applied at the paving stage after broom finish and surface is dry, and rate for spray of curing compound as per manufacturer instruction. The cost of curing compound and its application shall be deemed to be included in the quoted rate. (viii) The quoted rate shall be inclusive of use and waste of formwork for total thickness. (ix) At locations like link fillets, small areas etc where the slip form paver cannot be used for laying, fixed form paver with minimum 5m width can be used.

M & L for forming 25 mm width Expansion joint in concrete slab for full depth of PQC. Early entry saw and subsequent cutting by using diamond bit cutter of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris. The joint then filled with pre-molded 25 mm thick compressible polyethylene closed cell type filler board as specified, thereafter application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant. Placing of closed cell medium density, crossed linked polyethylene foam backup rod of 30 mm dia, over filler board and filled with polyurethane based sealant complying with BS5212, Bs-4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of +/- 30% having minimum 10 year performance guarantee, applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacturer complete all as specified and directed. Notes:- (i) Rounding of edge shall be done with hand grinder upto 5-6 mm dia. (ii) While cutting expansion joint, cutting machine should have facilities of arrangement of dual blade spaced at expansion joint width such that joint can be formed at a time.

M & L for cutting of Construction joint 25 mm deep and 10 mm wide by early entry saw and subsequent cutting by using diamond bit cutter of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris. Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant. Placing of closed cell medium density, crossed linked polyethylene foam backup rod of 12 mm dia, application of bond braker tape on top of backup rod for complete width of the joint and filled with polyurethane based sealant complying with BS5212, Bs-4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of +/- 30% having minimum 10 year performance guarantee, applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacturer complete as specified and directed. Notes:- (i) Primer to be used before filling sealant (ii) Edges shall be levelled and joints cut within 24 hours using diamond bit cutters of Bosch or equivalent used for cutting green concrete. (iii) The vertical edges or sides of concrete of construction joint shall be treated with a coat of lime wash or bituminous paint before concreting the adjacent bay.

M & L for forming of dummy/contraction joint with an initial saw cut of 3 mm soon after the concrete has set, upto a depth of 1/3rd to 1/4th the thickness of the slab, widening the first saw cut to 6mm and 24mm deep by using diamond bit cutter of appropriate size, straight and smooth edges. Joint cleaned thoroughly with application compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil, vegetation and other debris. Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant. Placing of closed cell medium density, crossed linked polyethylene foam backup rod of 8 mm dia, application of bond braker tape on top of backup rod for complete width of the joint and filled with polyurethane based sealant complying with BS5212, Bs-4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) of +/- 30% having minimum 10 year performance guarantee, applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacturer complete all as specified and directed. Note:- (i) Primer to be used before filling sealant (ii) Edges shall be levelled and joints cut within 24 hours using diamond bit cutters of Bosch or equivalent used for cutting green concrete.

Material and Labour for preparation of new surfaces and applying two coat road marking paint, white or golden yellow for painting lines, dashes, arrows, letters, etc. on roads/pavement and the like exc 10 cm wide complete all as specified and directed.

E/M works

Supply and lay for double wall corrugated (DWC) high density polythene pipes of size nominal outer dia 63 mm & nominal inner dia 50 mm dia having corrugation on the outer wall and plain surface on the inner wall confirming to ISI 14930 (Part I and II) for protection of underground cables with all fittings laid in trenches / road / nallah or fixed along wall for cable protection all as specified and directed.

Supply, laying & testing cable LT XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor, 1100 volts grade of size 4 core x 25 Sqmm including necessary double compression brass cable glands and testing the cable before & after laying complete all as specified and as directed.

Supply, test, installtion & commissioning for Hanger door Automated opertion by using the drive system as required to be designed for electrical as well as manual operation, Width of Hangar Door 18.30 Mtr and Height shall be 8.90 Mtr in 6 Nos. of Door Leaf, In case of power failure, change over from electrical to manual operation is to be achieved by shifting the idler gear into manual position and using the handle provided including the following :-

(a) Flame proof electric motor of capacity 1.0 HP suitable for door movement with manual clutch release mechanism,positive drive with inbuilt MS casted drive wheels fitted with sealed bearing- 02 Nos per each door (b) MS casted Non drive wheels in special MS housing fitted sealed bearing - 10 Nos per each door, Make of bearing : SKF or its equivalent Make.

(c) Additional Top Track Telescopic Deflection Assembly, the upper frame section each leaf shall be equipped with a minimum of 06 Nos horizontal & vertical arranged MS guide rollers (03 Nos on each side).These rollers shall be fitted/ mounted in a MS bracket assembly alongwith internal/ external pipe with spring- 12 Nos.

(d) Suitable Flame Proof electrical control Panel made out of 3.15 mm thick CRCA sheet fitted with MCB TPN of 32 Amps Switch Relay with emergency stop function, Emergency stop switch one set for each driving leaf consisting of suitable relays, power & auxiliary contactors, over load and under voltage protections and single phase preventer etc. Each Master Door to be provided with operator pendant for door open, close and emergency stop operator push button.with 2.5 sqmm 4 core copper cable of suitable length (55 Mtrs approx) for door operator electrical connections, 0.5 sqmm 8 core cable of suitable length (52 Mtrs approx) for ON/ OFF pendant, 0.5 sqmm 4 core cable of suitable length (210 Mtrs approx) for proximity sensors (08 Nos)- 02 Nos per door

Note :- (i) Specially designed Gear Drive along with Integral Drive Wheels/ Clutch for Emergency Manual Operation in case of POWER FAILURE to be Incorporated with Conts, heavy duty Flame proof Electric Motor IP-65 Protection to suit electric supply of 415 Volts, 3 phase, AC, 50 Hz with energy efficient rating having PF more than 0.95, robust construction. Master Door Panel & Slave Door Panel will be a set of 2 Master & 4 Slave (ii) The electrical operation of each master panel shall be carried out from a control panel mounted at the extreme end of the door openings inside the hangar building

(iii) Master panel shall be fitted with a pendant push button station. The pendant shall be mounted to the leading edge of the leaf on a cord about 2 meters long that allows the operator to move from side to side to see where the door is being driven. The pendent is hung up on a hood when not in use. (iv) The buttons shall include engraved marking like “Move”, “Open Mode” (as required) and “Emergency STOP” buttons. The “Open”, “Close” and “Move” push buttons are the dead man’s type; the Emergency “STOP” button is a red mushroom-headed, “twist – to reset” type. In addition a “Power ON” indicator lamp shall be fitted.

(v) Master Panel shall be fitted internally with an audible and visual alarm which operates at all times the “MOVE” button is pressed and for a safe period before the leaf is in motion under power. An interlock switch is fitted to the internal access panels for the drive units to prevent any leaf being used it is open. On operation OPEN/CLOSE push button, the variable speed drive control panel shall enable the doors to be started and accelerated to their running speed by a smooth & gradual increase of the speed over an interval of time. Similarly, on receiving a confirmation from the ‘Pre-final” limit/proximity switch, the panel shall automatically decrease the speed of the door smoothly & gradually from running speed to full rest.

(i) MANUAL OPERATION :- A mechanism to ensure two persons able to operate the drive manually with handle and doors shall be opened by disengaging the Gear Box, shall be provided separately. (ii) MOTORISED DRIVE PARAMETERS :- The drive system is required to be designed for electrical as well as manual operation, in case of power failure. Change over from electrical to manual operation is to be achieved by shifting the idler gear into manual position and using the handle provided

(iii) ELECTRICAL CONTROL SYSTEM :- The electrical control system shall be able to control all aspects of the door movements. The control system for each door shall consist of panel, limit/proximity switches, trailing/bunching cable etc. (iv) ELECTRICAL POWER SUPPLY :- The incoming power supply to the door panel shall be 415V, 3phase AC & 50Cys, 4 wire & earth. Power supply to each master leaf shall be by means of a looped trailing/bunching copper cable 4 Core 6 Sqmm unarmored system, mounted in the top guide track area from a junction box placed at the top extremities inside the hanger.

(v) CONTROL PANEL SYSTEM :- Each Door Control Panel shall consist of DOL starters, drive contactors, motor protection, control fuse holder, fused and indication lamps interlock contactors, limit/proximity switches, warning lights/hooters, trailing/bunching cable/wiring on the door after the main incoming power junction box. The incoming and of each control panel will be of MCCB 415 Volts, 63 Amps, 10KA and Outgoing will be of MCCB 415 Volts, 32 Amps, 10KA.

(vi) DOOR OPERATION SAFETY :- The following features shall be incorporated in the control system of the door: (a) The Control Panel shall be located as directed for easy operation and enable the operator to have a full view of the area during operation of the door. (b) The OPEN & CLOSE Push Buttons are constant pressure (HOLD to RUN) and the EMERGENCY STOP Push Buttons is STAY PUT type and have to be twisted to release.

(c) Emergency limit switch shall be provided at the extreme limits of travel just before the mechanical buffers. These emergency limit switches shall totally cut-off the control/power supply to the system in case the doors over shoot their normal limits. (d) Audio/Visual Alarm:- Master door panel shall be provided with a Flash Light cum Hooter that shall start & continue to operate during the time door is in operation. (e) Key operation:- An operation key switch shall be provided on each control panel to prevent unauthorized operation of the doors.