CWE/AF AMB/AMB-71/2024-25 SPECIAL REPAIR TO EXISTING SWTS AND APPORACH ROAD OF TECH AND DOMESTIC AREA AT AFS AMBALA UNDER GE (AF) AMBALA

Demolition of un-reinforced plain cement concrete (PCC) in ground floors and pavings not exceeding 15cm thickness (below or above ground level) including removal of debris outside the MoD land complete all as specified & directed

Excavation over areas, not exceeding 1.5mtr deep and getting out, in soft/loose type of soil complete all as specified & directed.

Rolling & consolidating formation surfaces in cutting with 8 tonne to 12 tonne power road roller complete all as specified & directed

M&L laying & compaction of 300mm thick (compacted thickness) Granular Sub Base Concrete(GSBC) in two layers each of 150 mm thick, grading as per Grade-I as specified in table 400-1 of MORTH specifications, over compacted subgrade with natural sand, crushed gravel, crushed stone, crushed slag, or combination thereof as grading required. The materials are mechanically mixed, spread & leveled on the subgrade by using motor grader of adequate capacity and rolling with vibratory roller of capacity 80KN to 100KN static weight for achieving required compaction density of at least 98% of the Maximum Dry Density, consolidating to required gradient & camber complete all as specified & directed. Notes: (i) The finished surface tolerance shall be as per Table 900-1 of MoRTH specifications for Road and Bridge works. (ii) Each layer (150mm thick) of GSBC shall be executed independently from laying till compaction. (iii) The quantity in BOQ is given for 300mm thick GSBC (consolidated thickness) and the top finished surface of 300mm thick GSBC shall only be measured for payment purpose.

M&L 200mm thick (compacted thickness) Wet mix macadam (WMM) in two layers each of 100 mm thick, grading as per table 400-13 of MoRTH specifications for Road and Bridge works, manufactured in WMM plant, material comprising of clean, crushed, graded aggregates and granular material premixed with water to a dense mass, spreading with sensor paver and rolling with vibratory roller of capacity 80KN to 100KN static weight and consolidating to required gradient & camber complete all as specified & directed. Notes: (i) The finished surface tolerance shall be as per Table 900-1 of MoRTH specifications for Road and Bridge works. (ii) Each layer (100mm thick) of WMM shall be executed independently from laying till compaction. (iii) The quantity in BOQ is given for 200mm thick WMM (consolidated thickness) and the top finished surface of 200mm thick WMM shall only be measured for payment purpose.

M&L providing & laying Dry Lean Concrete (DLC) 125mm 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 electronic sensor paver including spreading & compacting using high amplitude tamping bars of paver (initial compaction) further by double drum smooth wheeled vibratory roller with 80KN to 100KN static weight to achieve minimum dry density not less than 98% of maximum dry density, necessary finishing etc. complete all as specified & directed. Notes: (i) The finished surface tolerance shall be as per Table 900-1 of MoRTH specifications for Road and Bridge works. (ii) The contents of cement specified, is the minimum content and in case the quantity of cement required more according to approved design mix, nothing extra shall be paid for increased content of cement and rates deemed to be included for increased cement content (if any).

M&L 10mm thick (consolidated thickness) sand cushion with clean river sand, duly clear of residual, organic and deleterious material, spread evenly to uniform thickness, laid over existing surface complete all as specified & directed.

Supply & laying 400 micron thick HDPE sheet (virgin quality), water proof, wrinkle free without puncture having minimum weight 390 gram per sqm, over sand cushion as specified in the design with overlap between adjacent strips and at transverse joints as minimum 300mm complete all as specified & directed. Notes: (i) Sand layer wherever required shall be measured & paid separately. (ii) Company logo, IS Code and Batch No. should be marked on HDPE Sheet at every 2.00 mtr. (iii) No additional payment shall be made for overlap quantity of HDPE sheet and finished top area of HDPE sheet shall only be measured for payment.

M&L 250mm thick pavement quality concrete (PQC), minimum 28 days field flexural stength 45 Kg per Sqcm or 4.5 Mpa, aggregate gradation as per Table-3 of IRC 15-2017, coarse aggregate of clean, hard, strong, dense, non-porus and durable pieces of crushed stone or gravel, fine aggragate of clean natural sand or crushed stone sand or combination of both using minimum 360Kg per Cum of cement including mixed with polyester non-circular, virgin synthetic fibre at the rate as specified by the Manufacturer's (or as directed). PQC shall be laid in bays, spread, paved, compacted & finished as per required gradient and chamber with slip-form paver of minimum width 7.5 mtr, 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 & directed. Notes:- (i) Polyester non-circular fibre as secondary reinforcement at the rate as specified by the Manufacturer's (or as directed) and mixing of same is included in quoted rates. (ii) Formwork wherever required shall deemed to be included in quoted rates. (iii) The cost of the design mix shall be borne by the contractor. Testing of flexural strength shall be carried out as specified and cost of the same is deemed to be included in quoted rates. (iv) The contents of cement specified, is the minimum content and in case the quantity of cement required more according to approved design mix, nothing extra shall be paid for increased content of cement and rates deemed to be included for increased cement content (if any).

M&L forming Contraction (dummy) joints 65mm deep x 10mm wide, filled with grade 'A' sealing compound including necessary formwork(if any) complete all as specified & directed.

M&L forming Construction joints 30mm deep x 10mm wide, filled with grade 'A' sealing compound including necessary formwork(if any) complete all as specified & directed.

Removal of excavated soil to a distance exceeding 250 mtr but not exceeding 500 mtr and depositing where directed at a level not exceeding 1.5 mtr above the starting point complete all as specified & directed.

Taking down cement or cement lime plaster of any description on brick or stone walls, etc including racking out joints, hacking for key, scrubbing down with water including removal of debris outside the MoD land complete all as specified & directed.

M&L rendering cement plaster 15mm thick in cement mortar 1:4 on fair faces brick or concrete surfaces as in wall, finished even & smooth without using extra cement complete all as specified & directed.

M&L preparation of newly plastered surfaces of walls and applying two coats of cement base paint of approved shade/tint over & including one coat alkali resistant primer complete all as specified & directed.

M&L 300mm bore Reinforced concrete pipe, NP2 with one collar per length of pipe, laid in trenches and jonted complete all as specified & directed.

Demolition of brick work or stone/boulder masonary built in cement or cement lime mortar including all quoins, pillars etc but excluding ashlar facings, dressed stone work and precast articles complete all as specified & directed.

M&L Brick work with sub class B, burnt clay bricks of old size, designation 75, straight or curved on plan exceeding 6 mtr mean radius, built in cement mortar 1:4 complete all as specified & directed.

M&L water proofing treatment to floor & wall of Static Water Tank(SWT) as described below complete all as specified & directed:- (i) Dewatering of existing water by any means and making surfaces dry. (ii) Cleaning & preparation of old RCC / PCC / Brick surface of SWT, above or below ground level, removing grass/algae/fungus/loose concrete/loose particles & plaster etc. and making surface clean, dry & dust free. (iii) Repairing & strengthening of RCC/PCC/Brick wall, cutting of joints in 'U' & 'V' shape and cleaning, applying SBR latex based onding agents, filling joint with high strength fiber reinforcement, M-50 grade ready to use mortar. (iv) Applying four coat water proofing treatment, 1st coat of SBR latex, 2nd coat of component elastomeric flexible water tight, crack bridging water proofing coat, 3rd coat with same sandwich layer of 45 gsm glass fiber mesh and 4th coat of same. Notes: (i) Make of Water proofing chemicals: STP/SIKA/FOSROC (ii) The water proofing treatment shall be got carried out by the manufacturer or their authorised applicators duly approved by GE in writing. (iii) For guarantee & security deposit refer Particular specifications.

S&F mild steel framed work such as grills, gratings, etc. with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors; ladders; framed balusters; walk ways; railings; framework of water tanks and similar work conforming to Fe.290.Gde-E-165 complete all as specified & directed

M&L preparation of new steel and iron based surface of any description over 10cm width or girth, not otherwise described and applying two coats of synthetic enamel paint (ordinary tint) over & including one coat of redoxide primer complete all as specified & directed.

M&L preparation of old painted steel and iron based surface of any description over 10cm width or girth, not otherwise described and applying two coats of synthetic enamel paint (ordinary tint) over & including one coat of redoxide primer complete all as specified & directed.

M&L complete removal of existing treatment of ceiling / soffits etc. and applying two coat of white lime wash complete all as specified & directed.

M&L mild steel TMT bars 10mm dia and over, Fe-415, Fe-500 or Fe-550 grade confirming to IS-1786, cut to length, bent to shape required, including cranking, bending spirally for hooping for columns, hooking ends and binding with and including mild steel wire (annealed) not less than 0.9mm dia or securing with clips as in main reinforcement complete all as specified & directed.

M&L consolidated hardcore of broken stone or boulders, gauge not exceeding 63mm, deposited, spread and leveled in layers not exceeding 15cm thick each, watered and rammed to a true surface complete all as specified & directed

M&L 75mm thick plain cement concrete (PCC) 1:3:6, type C-2 (using 40mm graded mechanically crushed stone aggregate) as in plinth protection/path, finished even & smooth without using extra cement with & including 12mm wide, 30mm deep joints at the rate of 3.00 mtr centre to centre and at every turning & filling the joints with bitumen & sand mixture complete all as specified & directed. Notes : (i) The unit rate quoted shall be deemed to include for providing the concrete in alternate bays not exceeding 3 Mtrs length. (ii) 30 mm deep joints between the bays shall be provided which shall be filled with mastic filling with hot bitumen 85/25 grade and 1:2 mix volume.