SE/BII/Tech/CC/304_Noise Barrier

Amount

Supply of Noise barrier Metal Panel: 81 mm thick noise barrier made out of 1.2mm CRCA/ GI sheet with a front perforated GI sheet towards the sound/ noise source. Noise barrier shields/ reflects/ absorb the noise generated from the noise source. Acoustic Panel having 38 STC Rating. Outer finish is painted as per the approved colour bt the Department. The noise barrier panel will be fitted in a metal structure with metal nut bolt with washer. Self adhesive rubber tape of 6mm thick will be fixed on the metal structure before fixing the noise barrier in the structure to prevent the noise/ sound leakage through the barrier and metal structure gap. Including Transportation Cost (Cost of Excavation, Foundation and Metal Structure will be paid separately) Layer 1: High density Sound damping material, Avarage weight 6.5 Kg m2; Soundproofing: 67 RW decibel; LABEIN B 130 IN CT-109 I Test Theretical Calculation Excellent barrier to noise transmission due to material properties such as high density (1625 kg/ m3). Strong isolation factor and required elasticity. To be fixed with metal bolts "metal plate" adding a washer. Layer 2: Damp-proof plythene membrane to be fixed with synthetic rubber based adhesive Layer 3: Poly fiber wool: 65mm thick; Environment friendly Polyster fiber wool for sound absorbtion and isilating the sound/ noise to be fixed with metal strip/ GI wire if required.

Earthwork in excavation for foundation trenches of walls, retaining walls, footings of column, steps, septic tank etc. including refilling (return filling) the quantity as necessary after completion of work, breaking clods in return filling, dressing, watering and ramming etc. and removal of surplus earth with all lead and lifts as directed and specified in the following classification of soils including bailing out water where necessary as directed and specified. (A) Upto a depth of 2.00M below the existing ground level. (a) In ordinary soil

Plain cement concrete works with coarse aggregate of sizes 13mm to 32mm in foundation bed for footing steps, walls, brick works etc. as directed and specified including dewatering if necessary, and curing complete (shuttering where necessary shall be measured and paid separately). (a). In prop. 1:3: 6 (1 cement:3 coarse sand : 6 coarse agg. by volume (using mixture machine)

Providing formwork of ordinary timber planking so as to give a rough finish including centering, shuttering strutting and propping etc., height of propping and centering below supporting floor to ceiling not exceeding 4.0M and removal of the same for in-situ reinforced concrete and plain concrete work in: Foundation, footings, bases of columns, pile cap, raft and mass concrete works etc. i) Using 38mm thick plank.

Providing brick soling in foundation and under floor with stone/ best quality picked jhama brick, sand packed and laid to level and in panel after preparing the subgrade as directed including all labour and materials and if necessary dewatering, complete. a) Brick on flat soling

Providing and laying plain/reinforced cement croncrete works cement with coarse sand & 20mm down graded stone aggregate including dewatering if necessary, and curing complete but excluding cost of form work and reinforcement for reinforced cement concrete work (form work and reinforcement will be measured and paid separately) I) Using mixture machine A) In sub - structure up to plinth level Foundation, footing, columns with base tie and plinth beam, pile cap, base slab, retaining walls, walls of septic tank, inspection pit and the like and other works not less than 100mm thick up to plinth level. b) M20 or Prop. 1:1.5:3

Painting two coats (excluding priming coat) on new steel and other metal surface with enamel paint of approved brand and manufacture(Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac) to give an even shade including cleaning the surface of all dirt, dust and other foreign matter. (i).Surfaces over 100mm in width or girth. a). General purpose (Asian paint/ Berger paint/ ICI paint/ J & N paint/ Nerolac).

Supplying, fitting and fixing in position reinforcement bars conforming to relevant I.S. Code for R.C.C. work/ R.B. walling including straightening, cleaning, cutting and bending to proper shapes and length as per details, supplying and binding with 20G annealed black wire and placing in position with proper blocks, supports, chairs, spacers etc. complete (upto 1st floor level). b) Other ISI approved TMT reinforcement bar (SAI/BISCON/THERMAX) (For Assam Type Bldg., drain works,,retaining wall&boundary wall etc.

Steel work riveted and/ or bolted/ riveted in built up sections, frame work including cutting, hoisting, fixing in position and applying a priming coat of red- lead paint up to 4.6m height above plinth including drilling holes, supplying, fitting and fixing with bolts and nuts or welding, if necessary as directed. b) In single stanchions (columns) composed of R.S.J. or channels with caps, bases, splices, angle brackets etc.

M/S Nabajit Traders And Engineers

MS Satyam Enterprise