Kolkata Municipal Corporation Tender

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. a) Pakur Variety (ref. PWD (Bldg.)-2017, page-24 (item -4(a), consumption chart pg-B-60, sl-1 and Annexture-II , Format-A, 3rd Corrigenda & addenda p-10 dtd-04.06.2018, PWD(R&B) 2018, Chapter-1, pg-227 I-1.03, pg-230,Table-I , Table III-2 pg-226, )

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) (Ref. PWD (Rds & Brdgs)-2018, It. No. 4.09 Page No.247 & page-222 sl. No- 2 & 5 (g))

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 A (13.2 mm) A. Mechanical Means (Ref. PWD (Rds & Brdgs)-2018, It. No. 4.11 Page No.248, Table III-1 pg-224, Chapter-1, pg-227 I-1.03, pg-230,Table-I)

Supplying, spreading and compacting 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. Note:- Add cost at site of the materials to arrive at the complete rate. The compaction factor for dry, clean sand may be taken as 0.835. (The payment is to be made on the basis of finished compacted volume). (a) For Fine Sand (Ref. PWD (Rds & Brdgs)-2018, It. No. 4.05 Page No.245 & page-222 sl. No-3)

Taking out and relaying of existing interlocking paver blocks in footpath or passage etc over 20-40mm thick yellow sand bed with true to line,leveeling,proper compaction with vibrator etc with jointing with kerb/edge to be mede with cement concrete (1:2:4) etc as per the direction of Engineer-in-Charge including cost of taking out and using 20% new sand and all materials labour etc complete. (Ref. Consolidated rate based on PWD Schedule of Rates w.e.f. 01.11.2017 and approved by DG (Civil) dated 17.04.2018)

Sub Total

GST 12%

CESS 1%