West Bengal Industrial Infrastructure Development Corporation Tender

Single brick flat soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with powered local sand.

(I) Cement concrete with graded stone ballast (40 mm size excluding shuttering) In ground floor (A) With N.B. Variety stone metal. (a) 1:3:6 proportion (a) 1:3:6 proportion

Ordinary Cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant IS codes (i) Pakur Variety

Batch Mixed concrete of M 25 Grade with well Graded stone chips of 20 mm nominal size containing designed quantity of cement per Cu. M of Wet concrete produced in computerised batching plant under controlled condition using approved super plasticizer designing concrete mix following I.S 10262 and I.S. 456 transporting the mix with agitation in transit mixer to work site depositing the mix on a platform erected for the purpose at required level of concreting and then placing the mix in its final location of form work compacting and curing the same complete as per specification and direction of the Engineer-in charge including hire charges of computerised batching plant, transit mixer with all accessories vibrators etc. inclusive of all other incidental charges in this connection complete but excluding cost of hire charge of platform and its supporting staging which would be paid through separate item. Consumption of cement will not be less than 300 Kg of cement per cubic meter of controlled concrete but actual consumption will be determined on the basis of preliminary test and job mix formula. [Cement to be supplied by Deptt, if Cement is supplied by agency then item rate to be deduced as per Format A of Annexure I][with Batching Plant & transit mixer] In Ground Floor & Foundation (Pakur Variety) a)with Approved concrete pump

Hire and labour charges for shttering with centering and necesary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams, columns, lintels, curved or straight including fitting and fixing and striking out after completion of works. A. Steel Shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work a) Upto Ground Floor roof level

B. 25mm to 30mm shuttering without staging in foundation etc.

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in ground floor as per relevant IS codes

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups binders etc. including supply of rods, initial straightening and removal of loose rust (if necessary ) cutting to requisite length hooking and bending to correct shape, placing in proper position and binding with 16 gauge black annealed wire at every intersection complete as per drawing direction including cost of wire. Tor Steel / Mild Steel ( SAIL/TATA/RINL) a) Upto Ground Floor roof level upto 4m

Plaster (to wall floor ceiling etc) with sand and cement mortar including rounding off corners or chamfering corners as directed and racking out joints including throating nosing and drip course scaffolding / staging where necessary (Ground Floor) [Excluding cost of chipping over concrete surface]or roughening of concrete surface. i) With 1:6 cement morter. a) 20 mm thick plaster

Neat cement punning about 1.5mm thick in wall dado window sills floor drain etc

125 mm. thick brick work with 1st class bricks in cement mortar (1:4) in ground floor.

Brick work with 1st class bricks in cement mortar (1:6) (i) In foundation and plinth

Construction of Sub Base using Local Materials, spreading in uniform layers with Motor grader on prepared surface, including screening the metal as necessary, mixing by mix in place method with Rotavator at OMC, and compacting with vibratory roller to achieve the desired density, lighting, guarding and barricading including cost and carriage of all materials and making necessary earthen bundh of one metre wide on each side to protect the edges complete as per Clause 401 of Specifications for Road & Bridge Works of MoRT&H (5th Revision)(i) For Construction of Sub Base by compacting 1st class brick aggregates (40 mm down) and sand (in proportion of 60:40)

Water Bound Macadam Base Course : Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregate, watering including lighting, guarding, barricading and making necessary earthen bundh of one metre width on each side and preparing the bed by necessary cutting or filling, including cost of all materials and hire and labour charges of all men and machinery and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). i ) Grading-I Aggregate (63 mm to 45 mm) Using Stone Screening Type B (11.2 mm) .a) Manual Means

(ii) Grading-II Aggregate (53 mm to 22.4 mm) Using Stone Screening Type B (11.2 mm) .a) Manual Means

Tack Coat :-Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision).(ii) On Granular surfaces treated with primer (Using Bitumen emulsion at the rate of 0.25 to 0.30 kg per sqm.)

Bituminous Macadam using Hot Mix Plant (HMP) :-Providing and laying bituminous macadam with Hot Mix Plant using approved crushed aggregates of specified grading as per Table 500.7 premixed with bituminous binder, transported to site laid over a previously prepared surface at specified laying temperature with paver finisher to the required grade, level and alignment and rolled with suitable power roller for break down, inter-mediate and finished rolling as per specification to achieve the desired compaction including cost and carriage of stone materials and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of operational staff, quality control complete as per Clause 504 of Specifications for Road & Bridge Works of MoRT&H (5th Revision)A. For Grading 1 (40 mm nominal size, 80-100 mm thick).(i) Using Drum mix Type HMP of minimum capacity 40-60 TPH.

B. For Grading 2 (19 mm nominal size, 50-75 mm thick.)(i) Using Drum mix Type HMP of minimum capacity 60-90 TPH

Mastic Asphal :-Providing and laying Mastic asphalt wearing course with paving grade bitumen meeting the requirements given in table 500-29 using approved coarse aggregate, fine aggregate, filler material and bitumen, prepared by using Mastic cooker including cost and carriage of all ingredients, cost of heating aggregates and binder, mixing in specified proportions conforming to approved Job Mix Formula and laid to required level and slope after cleaning the surface, compacting, sealing the construction joints and surface finishing conforming to specifications including providing antiskid surface with bitumen pre-coated fine-grained hard stone chipping of 13.2 mm nominal size at the rate of 0.005 cum per 10 sqm and at an approximate spacing of 10 cm center to center in both directions, pressed into surface when the temperature of surfaces not less than 100°C, protruding 1 mm to 4 mm over mastic surface, including the hire charges of all tools and plants and machinery, pay of operators, cost of fuel and lubricants and all other incidental charges and quality control all complete as per Clause 516 of Specifications for Road & Bridge Works of MoRT&H (5th Revision) (i) 25 mm thickness

Applying Exterior grade Acrylic primer of approved quality and brand on plastered or cencrete surface old or new surface to receive decorative textured (matt finish) or Smooth finish acrylic exterior emulsion paint including scraping and preparing the surface throughly,complete as per manufacturer's specification and as per direction of the EIC.In Ground Floor: One Coat

Protective and Decorative Acrylic exterior emulsion paint of approved quality, as per manufacturer's specification and as per direction of Engineer-in-Charge to be applied over acrylic primer as required. The rate includes cost of material, labour, scaffolding and all incidental charges but excluding the cost of primer In Ground floor (Two Coat) a) Normal Acrylic Emulsion