Indira Gandhi Centre For Atomic Research Tender

All kinds of soil with depth upto 1.5m below average Ground level and disposing surplus excavated earth upto a lead of 200 metres.

All kinds of soil with depth exceeding 1.5m but not exceeding 3m below average Ground level and disposing surplus excavated earth upto a lead of 200 metres.

Dismantling Plain Cement concrete by manually / by mechanical means at all levels, carefully without damaging adjacent structures including disposal of debris with 50m lead, labour, tools required etc. complete in all respects as per specifications and directed by the Engineer-in-charge.

Providing and laying cast insitu controlled Plain cement concrete (PCC) of specified grade at all levels and lifts mentioned below using 20mm maximum size hard granite machine crushed graded stone aggregates (with VSI technology only) and crushed stone sand (with VSI technology only and should be washed in water to remove finer particles, the micro fines particles of size less than 75 micron should be less than 7%) (Zone I /II) conforming to IS 383 – 2016, including weigh batching, charges for mixing & cost of admixture, mechanical mixing, transporting and placing at all lifts, vibrating, consolidating, curing and finishing smooth of all exposed faces complete for column footings, columns, lintels, sunshades, gutter slabs, beams, slabs, water tank, machine foundation and all other structural elements including dewatering wherever necessary, including Formwork, all as per specification and all as shown in drawings and as directed by the Engineer-in-charge for all insitu item. Note: 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture conforming to IS 9103 shall be mixed in fresh concrete and prior permission from engineer-in-charge shall be obtained for dosage and compatibility 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F.

M15 grade with 300 kg. of cement per cu.m. of concrete at all levels.

Supplying and placing in situ Normal Reinforced cement concrete of grade & total minimum cementitious content as specified (cement + fly ash) for kg/Cu. M, using OPC conforming to IS 269-2015 or latest edition and with required fly ash conforming to IS 3812 Part -I / ASTM C-618 Class F. Fly ash should be blended at site such that fly ash content should not exceed 20 % by weight of total cementitiouscontent. Coarse aggregate used should be hard granite machine crushed (with VSI technology only) graded stone aggregates withmaximum size of aggregate not exceeding 20 mm size. Fine aggregate used shall be either natural river sand or crushed stone sand (with VSI technology only and should be washed in water to remove finer particles, the micro fines particles of size less than 75 micron should be less than 7%) (Zone I /II) conforming to IS 383 – 2016. The cost includes weigh batching, required chemical admixtures, mechanical mixing/Ready mix supply plant mixing, transporting/transporting by Transit Mixers, pumping using Concrete pumps/ placing with crane buckets etc., at all levels,lifts & all structural elements including dewatering wherever necessary, including compacting, finishing, curing (For a period of at least 10 days), providing construction / contraction / expansion joints, pour strips etc. but excluding centering, shuttering, reinforcement and F3 finishing at all levels / elevations as given in drawings, specifications as directed by EIC. Rate to include all materials, labour, tools /tackles, plant and equipment, supervision, etc. complete. Note: 1. The rate of concrete shall include all labour, equipment, charges for mixing & cost of admixture. Chemical admixture confirming to IS 9103 shall be mixed in fresh concrete and prior permission from engineer-in-charge shall be obtained for dosage and compatibility. 2. Test certificate of cement, procured from dealer/company to be submitted for all cement related works by the Contractor. 3. The rate shall be quoted on the basis of using minimum cement per cu.m. of concrete mentioned below for relevant grade of concrete. Any upward/downward variation required to obtain the specified strength will be paid for or deducted at the rate of cement specified in Schedule F.

M30 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 380kg/cum of concrete and minimum cement content of 304Kg/cum of concrete as mentioned for the levels from bottom of foundation level to FFL

M30 grade with total minimum cementitious content (cement + fly ash content not exceed 20 % by weight of total cementitious content) 380kg/cum of concrete and minimum cement content of 304Kg/cum of concrete as mentioned for the levels above FFL

Providing, straightening, decoiling wherever necessary bending, cutting, binding and fixing in position steel reinforcement TMT bars of Fe500D grade steel conforming to IS:1786 'SAIL or VIZAG or approved equivalent make' and tying with approved annealed binding wire of 1.6mm dia in all reinforced cement concrete work at all lifts, including cost of supplying and fixing the spacer/cover blocks in cement mortar 1:2 and binding wire complete all as per specification and as directed by the Engineer-in-charge at all lifts. Note: The rate shall be including the cost of reinforcement steel. The reinforcement steel will be procured from dealers with a test certificate as approved by the department. For further details please see Point 7 of Section VIII, General Information for Guidance of Tenderers.

Supplying, fabricating, erecting and fixing in position at all levels, centering and shuttering to correct line and levels including strutting, propping, etc., with necessary bracings in all axes to give a stable assembly with provision for making the joints in the shuttering fully leak proof and with provision for fixing coil nuts with tie rods along with suitable channel for lateral supports and for inserts, projecting dowels, anchor bolts or any other fixture, including staging, access and working platforms etc., all complete as specified and directed including dismantling and removing the aforesaid assembly after the concrete attains the sufficient strength to self-support itself without cracking and distortion all as per specification, including all materials and labour complete in all respects at all lifts. The measurement for the formwork will be the actual area of forms in contact with concrete surfaces. Shuttering with plywood panels alone will be permitted.

Demolishing existing RR wall & Reconstructing the same quantity of Random Rubble rubble masonry in cement mortar 1:6 including providing required bond stones at 2.00 metres c/c at all course, including providing required RR stones apart from stones obtained from existing dismantled wall at all levels for foundation, basement and in superstructure, compound/boundary walls, including sizing of stones if required, raking out joints, scaffolding, curing etc., complete all as per drawing, specifications and as directed by Engineer-in-charge at all lifts. Note: 1) Dismantled RR stones should be neatly cleaned before using the same in reconstruction purpose & usable stones shall be stacked properly before using it in work. 2)Required bond stones at 2 m c/c at all course shall be of precast PCC grade M15. 3) Required quantity of RR stones apart from the usable quantity of RR stones obtained from dismantled existing wall, is in the Contractor's scope. 4)All other materials for Cement Mortar, scaffolding arrangement is in the scope of work. 5)Necessary raking out joints (groove) at masonry joints to receive pointing to be done immediatly each course of RR masorny completed. 6)About 20% quoted rate shall be released for dismantling & stacking work, balance 80% quoted rate shall be released once construction of RR wall is completed.

Providing and constructing Random Rubble masonry in cement mortar 1:6 using crushed stone sand and using hard granite stones obtained from approved quarry with bond stones at 2.00 metres apart for foundation, basement and in superstructure, compound/boundary walls, including sizing of stones if required, raking out joints, scaffolding, curing etc., complete all as per drawing, specifications and as directed by Engineer-in-charge at all lifts.

Providing Flush pointing over the random rubble masonry wall with cement mortar 1:3 using crushed stone sand at all levels including scaffolding, curing, forming grooves wherever necessary all as per specifications, drawings and as directed by Engineer-in-Charge.

Providing F3 finish over concrete surfaces in cement mortar 1:1.5 using crushed stone sand (1 part cement : 1.5 part fine sand) including wetting the surface, labours, curing, all materials, scaffolding, at all elevations complete all as per specification and as directed by the Engineer-in-Charge.

Providing and fixing GI supporting Arm to fix SS concertina barbed tape of diameter 610mm, made up of hot dip galvanized steel angle of size 50x50x6mm (GI coating shall not be less than 350gm/sq.m. as per IS:277) including anchorage to the compound wall which will be embedded in the concrete, including, required dismantling of RR wall for inserting G.I Support & scaffolding charges, erection, fittings and fixtures complete. Note: Payment for concreting will be paid separately under relevant items.

Providing and fixing stainless steel barbed wire of SS 304 grade comprising of four spikes by turning 2 wires of 2.5mm dia A-1 conforming to IS:278, including tying to support GI arms and concertina, with 1mm dia SS binding wire working at all heights including cost of necessary scaffolding and safety requirement etc. all complete as per specifications and as directed by the Engineer-in-charge. Note: The GI supporting arm will be measured under relevant item.

Providing and fixing STAINLESS STEEL of SS 304 GRADE concertina coil fencing of diameter 600mm (Tolernces +50mm – 0.00mm) having 50 nos rounds per 6metre length with spring core made up of STAINLESS STEEL of SS 304 GRADE of 2.5mm dia with 0.5mm thick sheet tape made up of STAINLESS STEEL of SS 304 grade upto a working height of 3 to 4 Metres supported over support angles placed 3 Metres apart and tied with of horizontal stainless steel barbed wire & supporting angle properly with SS binding wire, including scaffolding, bolts, SS clips all complete as per direction of Engineer-in-charge. The measurement shall be taken as the length of fencing in running metres along the centre. The payment for GI support and horizontal stainless steel barbed wire will be made separately under relevant item. SS barbed wire which is used to tie the concertina coil will be weighed and measured under this item. Note: Technical specifications of SS punched tape concertina coils: • Diametre of punched tape concertina coils: 600mm (+50mm, -0.00mm) • Number of spiral turns per coil: 50 Nos. • Weight of concertina coil : 10 to 10.50kg / 6metre length. • No. of SS clips per coil: 77 • No. of SS clips per spiral pair: 5 • Thickness of SS spring steel core wire: 2.50 +/- 0.10mm • Barb sheet thick of SS: 0.5mm • Barb width of SS strip: 32 +/- 1mm • Maximum recommended stretch length per coil: 6meters (approx.) • Uniform gap between the sharp barbs: 100 +/- 1mm (Centre to Centre) - Barb spring • Length of each barb: 60 +/- 1mm • SS will be of 304 grade • Packing of concertina coils to be done with suitable packing material.

Removing and re-fixing GI supporting X - frame arm from existing RR wall top to fix SS concertina barbed tape including anchorage to the compound with scaffolding charges, erection, fittings and fixtures complete. Note: Payment for concreting will be paid separately under relevant items.

Removing and refixing the existing concertina coil fencing along with horizontal SS barbed wire from top of existing RR compound wall using required double tie SS binding wire, scaffolding, tools and tackles etc and as directed by Engineer-in-Charge. Note: (i) The Concertina coil and barbed wire shall be carefully removed from the top of existing wall and neatly rolled them properly before using for refixing it. (ii) The length will be measured along the horizontal length of compound wall. SS double binding wire used for refixing the concertina coil and barbed wire fencing shall be included in this item.

Providing a system for dewatering and drainage of water from site to main drain so as to retain the excavated formation dry for the duration required by the client/consultant including all equipment’s, consumables, site protection, etc. complete all as directed by the Engineer-in- Charge.

Conveying the surplus excavated earth & debris, boulders and spoil by mechanical means and depositing at places inside DAE installation identified as Dumping yard as per requirement with a lead specified below including loading, unloading, breaking clods, levelling all complete as per specification and as directed by the Engineer-in-Charge. Note: 1) The rates in respect of this Item are applicable for the NET Quantities arrived at after making deductions for voids @ 20% in respect of soil and @ 50% in respect of Rock from the corresponding Stack / Truck measurements. 2) The earth shall be dumped well inside the Dumping yard and not over approach pathway road.

Lead charges for lead exceeding 1 kilometre but not exceeding 2 kilometre

Levelling, bull-dozing the heeped/dumped loosened earth/debris etc. to form a berm of road along the side of road, alignment by hiring JCB etc., including labour charges (if any) to the required width as directed by the Engineer-in- Charge.

Providing and laying non pressure NP2 class RCC Hume pipes conforming to IS:458, with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 using crushed stone sand, laying to the levels, slopes including testing of joints etc. complete all as per the drawings and specifications and as directed by the Engineer-in-charge.

300mm dia NP2 class RCC Hume pipe

Providing and forming dry stone pitching of 230mm thick over the filled earth surface including laying to the required grade and slope, packing and filling the intersects with broken stone and gravel, watering, compaction etc., complete in all respects all as per specification and as directed by the Engineer-in-Charge.

Dismantling of RCC works at all levels by manually / by mechanical means, including Cutting and stacking of steel reinforcement bars and disposal of unserviceable materials within 50m lead as per specifications and directed by the Engineer-in-charge.

Providing, supplying, cutting, bending to shape, welding, fabricating, hoisting, placing and fixing in position structural steel members like MS structural embedment’s/pipe and sleeves/penetration etc. using MS angles, channels, I-sections, plates, tees, flats, rounds, square sections etc. including chamfering and rounding off the edges, applying a coat of Red lead paint primer / Zinc chromate primer of approved make and 2 coats of flat oil paint / synthetic enamel paint of approved colour and make, scaffolding and staging required for fabrication as well as erection complete all as per specifications, drawings and as directed by the Engineer-in-charge. Note: Lifting device arrangements if any required also arranged by the contractor at his own cost.

Providing and fixing G.I. chain link fencing conforming to IS:2721 of required width in mesh size 50x50mm, made of G.I. wire 3.15mm diametre including strengthening with top and bottom line wire 4mm diametre, (4mm diametre line wire at top, bottom & middle to be provided incase fencing height exceeds 2m) cutting of chain link & wires to required length, spreading, fixing & binding chain link to fencing post with 18 gauge binding wire including cost of GI bolts and washers and wire etc., complete in all respects all as per specifications & directed by the Engineer-in-Charge.

Protective Coating over the external surface of RCC structures below ground level : Providing and applying coal tar epoxy based protective coating 'Master Protect 1812 of BASF or Fosroc Nitocot ET 550 or approed equivalent' applied in two coats for a total DFT of 300 microns with suitable brush or a roller brush (The Dry Film Thickness will be measured for a minimum thickness of 300 micron for payments). The mixed material shall have a density of 1.65Kg/Lit, adhesive bond strength of 1.50 Mpa as per ASTM D4541, abrasion resistance of 17mg/1000 cycles when tested as per ASTM D4060, CS 17 wheel and slant shear bond strength of 10 Mpa as per ASTM C882. The substrate shall be prepared by mechanically grinding using electrically operated hand held sander machines to expose all blow holes, voids and imperfections and these shall be cleaned by flushing with air and water if required to clean any oily substance and filled with suitable epoxy putty before the application of the protective coating, all complete as per the instruction of manufacturer and the Engineer in charge.f the protective coating, all complete as per the instruction of manufacturer and the Engineer in charge.

2) The earth shall be dumped well inside the Dumping yard and not over approach pathway road.

INR Zero Only