M and R to dyke along L/B of Borak from Massimpur to Katakhal (Renovation of sluice culvert) at Ghagrapar for the year 2021-22.

Amount

Dismantling of existing structures like culverts, bridges, retaining walls and other,structure comprising of masonry, cement concrete, wood work, steel work, including T&P and scaffolding wherever necessary, sorting the dismantled, material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 1000 m as per Technical Specification Clause 202 (I) By Manual Means,, ( C ) Reinforced Cement Concrete

Earthwork in excavation Upto 3 m depth for structures as per drawing and technical specifications Clause 305.1 including setting out, construction of shoring and bracing, removal of stumps and other deleterious material and disposal upto a lead of 50 m, dressing of sides and bottom and backfilling in trenches with excavated suitable material. I Ordinary soil

Laying brick soling layer on prepared sub-grade with brick on end edging according to lines, graded and cross-section shown on the drawing filling joints with sand and earth, spreading 25 mm thick layer of earth over brick soling, watering and rolliing the same with three wheel road roller 80-100 kN as per Technical Specification Clause 412

Providing concrete for plain/reinforced concrete in open foundations complete as per drawings and technical specifications Clause 802, 803, 1202 & 1203,B With natural Gravel (Nominal mix 1:2.5:5)

i) Laying concrete cradle bedding with M15 Grade Cement Concrete as per Clause 1105 (i) Rate as per Item No.11.4 (II)(i) of Chapter 11

Plain/Reinforced cement concrete, in open foundation complete as per drawing and technical specification including steel shuttering formwork (i) I. Without plasticiser C. RCC grade M20. Using concrete mixer

Supplying, fitting and placing MS Bar (Fe-500 D) reinforcement bar(From Primary Producer: TATA/SAIL/Esser Steel/ Jindal steel/Shyam steel/RINL) in substructrue complete as per drawings and technical specification Clauses 1002, 1005, 1010 & 1202

Supply of Geo-textile bags of type-A (size 1.03X0.70M), inner dimension made of Geo-textile non-woven fabric sheets of 400 GSM manufactured from 100% virgin Polypropylene (PP) fibre having thickness not less than 3.00 mm with minimum properties as (i) Tensile strength (CD) ≥ 24 KN/m (ii) Tensile strength (MD) ≥ 22 KN/m (iii) Mass ≥ 400.00 Gm/m ² (iv) CBR Puncture strength ≥ 4100 N/m2 (v) Elongation @ break (Warp) ≥ 54% (vi) Elongation @ break (Weft)≥ 52% (vii) Abrasion ≥ 70 % (viii) UV Resistance @ 500 hours ≥ 70% (ix) AOS ≤ 75 micron (x) Permittivity ≥ 1.25, (xi) Trapezoidal Tear Strength ≤ 520 N (xii) Permeability = 45Lt/m2/sec (xiii) Seam strength = 80 % of geotextiles strength . Stitching of Bags should be Ring Spun Yarn stitches with 2500-3000 denier double line chain stitch with overlap with stitches along the edge @ minimum 15 stitches per 100 mm. (Bags are to be supplied of 100 numbers or part in a bundle, properly packed with name of Manufacturer and Batch Number is to be marked on each bag with “WRD Govt of ASSAM” to be printed on each bag and mentioning properly the GSM and type of Geo bag polymer. Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material). FOR GUWAHATI

Carriage of Geo Bag of size 1.03X0.70 m including loading and unloading, stacking, cost of POL etc. complete and including hire charge of truck with driver and handyman, complete as directed. Distance from Guwahati to Silchar = 340km (at work site 30km) ( 0.013 x 370.00 ) = Rs 4.81 /nos

Filling and laying of Geo bags of size 1.03m X 0.70m including excavation of silt from flood plain or adjacent chars within a distance of 90m of the work site, filling geo bags with silt having minimum weighing 126.00 Kg and minimum volume 0.084 cum after filling ,double locking chain stitching the mouth of the filled bags with polypropylene thread by power driven double needle double stitched machine, stacking the same in batches of 100, carrying the same to the dumping site including all handling charges and local carriage within a distance of 150m and laying properly as directed. (Geo Bag and Polypropylene thread will be supplied by the department free of cost)(Without Boat) for pitching

Construction of embankment with approved material obtained from borrow pits with a lift upto 1.5 m, transporting to site, spreading, grading to required slope and compacting p g to meet requirement of Tables 300.1 and 300.2 with a lead upto 1000 m as per Technical Specification Clause 301.5,Private Land

Haulage excluding Loading & Unloading Haulage of materials by tipper excluding cost of loading, unloading and stacking Case-I : Surfaced Road

Construction of temporrary shed of two roof with mud plinth of 0.45 m height above ground level with Bhaluka bamboo post 1.5 m apart driven at atleast 0.75 m below ground and height above plint 2.5m. Split Jatti bamboo wall mud plastering white washing 2 coats, 10 cm thick touch roofing over bamboo rua frame pplacing at 0.15 m clear apart fitted with bamboo kamies from binding doors and windows with Bamboo Chattai strengthening with Bamboo frame binding with wire etc compple as directed. (Using Bhaluka Bamboo at the rate of 6.00 nos/ Rm & Jati Bamboo at the rate of 61.00nos / Rm)

Supply of Pre stressed Cement Concrete (PSC) Porcupine members of size 0.10m X 0.10mX 3.00m with M-30 grade of cement concrete confrming to IS 1343 : 2012 using super-plasticizer @1.2 lit/bag of cement with graded brokn coarse aggregates up to 20mm size down conforming to IS 10262:2009 & IS 456:2000 and reinforced with 4 nos. of 4mm dia high tensile steel wire cable with necessary cover and 4mm high tensile stirrups at 250mm C/C, in conformity with IS-6403:R2002 and stressed to required strength not exceeding 9.18N/mm, holes of 16mm dia at 50cm inside from both ends in the same face and in either face of post another 2 Nos. of holes of size 16mm dia at 65mm inside from both ends including properly curing for 21 (twenty one) days and carriage of porcupine members from factory to the stack yard within a distance up to 20km including loading, unloading & stacking complete as directed. (Including forest royality and all taxes as admissible).

Local Carriage of Porcupine members by Diesel truck of 10 MT capacity including loading at stack yard and un loading and stacking at river bank for all lift,complete as directed (Distance from store to work site =20.00km, 20X1.68=33.6)

Labour charge for launching of PSC Porcupine including carraiage of PSC porcupine members of size 0.10m x 0.10m x 3.00m from the stack yard to the place of launching, erection of the Porcupine with 6 (Six) members properly, supply & fitting/fixing with 12 mm dia 25cm long M.S. Nuts and bolts and launching the porcupine properly as directec (Lead up to 150m)(A) Without Boat

Supply of non-woven Geo-textile fabric sheets of 300 GSM manufactured from 100% virgin Polypropylene (PP) fibre with minimum properties as (i) Tensile strength ≥ 12 KN/m (ii) Mass ≥ 300.00 Gm/m ² (iii) CBR Puncture strength ≥ 3.5 KN (iv) Elongation at break ≥ 60% (v) Abrasion ≥ 70 % (vi) UV Resistance @ 500 hours ≥ 70% (vii) AOS ≤ 75 micron (ix) Permittivity ≥ 1.25, (x) Trapezoidal Tear Strength ≤ 340 N (xi) Permeability = 2.00 x 10 ̄ ³ m/sec (xii) Seam strength = 80 % of geotextiles strength . Stitching of Bags should be Ring Spun Yarn stitches with 2500-3000 denier double line chain stitch with overlap with stitches along the edge @ minimum 15 stitches per 100 mm. (Each Roll of Geo Fabric Sheet should be supplied in properly packed Bundles and should be marked with the Name of Manufacturer & Batch Number clearly on each bundle with “WRD Govt of ASSAM” to be printed on it and mentioning properly the GSM and type of polymer and Test Certificate from approved NABL accredited and ISO Certified Laboratory should invariably be submitted against each batch of material) FOR GUWAHATI

Carriage of 300 GSM Geo-sheet of including loading and unloading, stacking, cost of POL etc. complete and including hire charge of truck with driver and handyman complete as directed. { Distance from Guwahati to site is 340.00 KM, For 1 bag / 1 km = Rs. = 0.013 ,For 1 bag / 340 km = Rs. =4.42}

Labour charge for laying Geo fabric sheet as filter bellow pitching including anchoring and complete as directed.

Collection and supply of brick bats 10-40mm size to work site including loading, unloading transportation and stacking in measurable stacks including sale tax, compensation if any, etc. complete as directed

Local carriage of brick bats, boulder, metal, gravel/sand etc. from the approachable site beyond 150m and up to 3.00Km from the work site including loading from stack and unloading at work site with 10 (ten) ton capacity truck, supplying P.O.L. etc. complete as directed.

Labour charge for laying of brick bats, broken stone metal, sand gravel etc. on approach road including ramming dressing the seat and local carriage of materials up to a distance of 60 m complete as directed.

M.S. Plate , 6 mm thickness for shutter,skin gangway

M.S. Angle (75x75x6) mm for stiffener,guide,anchoring,gangway post,supporting bar, cross bar, rail post, side bar etc

M.S. Channel (150x75) mm for top and bottom

M.S. Shaft (best quality) of dia. 75mm

C.I booss with internal thread 150x200mm

HD trust ball bearing 75mm dia

Nuts and Bolts , machine finished , according to size

Hackshaw blade .(0.5 x0.5) inches

M.S. electrode , 8 swg

Waste cotton

Painting brush 3 inch

Wire brush

Emery paper

Anti corrisive paint 20 ltr dram

Terpentine oil

Mobile oil

Grease

Nylon rope

Kerosine oil

Making MS base plate 300x300mm x100 for post etc

Pully stand made of 100x50mm channel for 150mm

Clamp for lock plate , shaft pin with upto 1500 size,20mm dia

C.I pully 16mm to 25mm dia groove with centre hole as per direction 250mm

CI roller pin of length 125 to 200 mm machined finished 16 mm dia

Tread cutting (square) 2TPI fine finished for 75 mm shaft

D.A. gas 6 cub. Mtr

Oxygen gas 12 cub. Mtr

H.S desiel for Gen. start etc

Material handleing

Transpottation of materials from workshop to site (1 km to 60km)

Sidhartha Sekhar Dutta

Aminul Hoque Laskar