Kolkata Port Trust Tender

Supplying ready mixed concrete of M-10 grade with well graded stone chips of 20 mm nominal size containing designed quantity of cement 300 kg per cum of wet concrete produced in computerised batching plant under controlled condition using approved super plasticizer , designing concrete mix following IS 10262 and IS 456 transporting the mix with agitation in transit mixer to worksite depositing the mix on a platform erected for the purpose at required levels 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 computerised batching plant transit mixture 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.(cement to be supplied by the manufacturer/supplier) In ground floor and foundation.(i) Without approved concrete pump.

Construction of dry lean cement concrete sub base over a prepared sub-grade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing. (As per clause 601 of specifications for Road & Bridge Works of MoRT&H (5th Revision).

Supplying and laying in the specified pattern of Interlocking concrete block pavements (ICBP) with concrete blocks (with concrete grade as specified as per Table 1 of IS 15658:2006) manufactured in steel mould clamped to a vibrating table by hydraulic pressure (As per clause no 6.30 of IRC : Sp: 63 (2018) , from BIS license manufacturer , with spacer nib (small protruding profiles on the vertical face of a paver block used as a device for keeping minimum joint gap in between the paving block as per Cl No 3.26 of IS : 15658) and of specified size and shape with aspect ratio (the ratio of length to thickness of a paver block as per CL No 3.3 of IS : 15658) as per Table 2 of IS15658 with flexural strength / breaking load as per Annexure G of IS15658 on prepared base course of specified CBR as per table 1 of IRC SP 63 (2018) or else as mentioned in design and drawing with a couson of compacted bedding sand of 25-35mm thick (Grading of bedding sand as per clause 6.5.1 of IRC SP-63) and filling up the gaps in between paver block with joint filling sand (the grading of joint filling sand will be as per clause 6.5.2 of IRC SP-63) and completing the edges with cut blocks as per clause no. 8.7 of IRC SP-63 (2018) with proper confinement of bedding and joint filling sand, compaction, leveling and filling up of the edge gap. 120mm thick Grey (Dentated or dumble shaped)

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75 m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

Filling in foundation or plinth by silver sand in layers not exceeding 150 mm as directed and consolidating the same by thorough saturation withwater, ramming complete including the cost of supply of sand. (payment to be made on measurement offinished quantity)

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Reinforcement for reinforced concrete work in all sorts of structures including distribution bars, stirrups, binders etc 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 and direction.(a) For works in foundation and upto roof of ground floor/upto 4 m (i) Tor steel/Mild Steel Otherthan SAIL/TATA/JSW/ JSPL/SHYAM/SRMB/BMASL/ELECTRO STEEL/SSL

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams and columns, lintels curved or straight including fitting, fixing and striking out after completion of works (upto roof of ground floor) (c ) Steel shuttering or 9 to 12 mm thick approved quality ply board shuttering in any concrete work

Supplying ready mixed concrete of M-25 grade with well graded stone chips of 20 mm nominal size containing designed quantity of cement per cum of wet concrete produced in computerised batching plant under controlled condition using approved super plastisizer , designing concrete mix following IS 10262 and IS 456 transporting the mix with agitation in transit mixer to work site depositing the mix on a platform erected for the purpose at required levels 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 computerised batching plant transit mixure 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.(Cement to be supplied by the Manufacturer or supplier) In ground floor and foundation. Without approved concree pump.

Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof

Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. In ground floor including roof. (a) upto 150 mm. thick

Dismantling R.C. floor, roof, beams etc. including cutting rods and removing rubbish as directed within a lead of 75 m. including stacking of steel bars. (a) In ground floor including roof.

Surface Dressing of the ground in any kind of soil including removing vegetation inequalities not exceeding 15 cm depth and disposal of the rubbish within a lead upto 75 m as directed.

Removal of rubbish, earth etc.from the working site and disposal of the same beyond the compound, in conformity with the Municipal/Corporation Rules for such disposal, loading into truck and cleaning the site in all respect as per direction of Engineer –in-Charge.

Supplying, spreading and compacting dry, clean Sand to required thickness, in layers not exceeding 150 mm to proper gradient and camber, inundating each layer by water and packing and ramming layer by layer to achieve desired compaction, including lighting, guarding, barricading and making adequate earthen bundh where necessary, curing with water as per direction, mending cracks and depressions by ramming wherever necessary. Coarse Sand (Grading Zone I as per IS: 383- 1970). (The payment is to be made on the basis of the finished compacted volume.)

Labour for Chipping of concrete surface before taking up Plastering work.

Plaster (to wall, floor, ceiling etc.) with sand and cemen mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course scaffolding / staging where necessary (Ground floor). [Excluding cost of chipping over concrete surface] With 1:4 cement mortar 15 mm thick plaster

Neat cement punning about 1.5mm thick in wall, dado,window sill, floor etc. NOTE:Cement 0.152 cu.m per100 sq.m.

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