Kolkata Municipal Corporation Tender

BUILDING WORKS (A) EARTH WORK,ANTITERMITE TREATMENT 2. 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.

Laying of interlocking Paver Blocks as per approved design over 20-30mm th medium yellow sand bed with true to line,lavelling,proper compaction with vibrator etc. with jointing with kerb/edge should be made with Cement Concrete (1:2:4)etc. as per the direction of the Engineer-in-charge and including cost of materials,labour etc. complete

12_TH_CORRIGENDA_ADDENDA_16 _ DT _14-10-2020_PAGE 2SL.NO(2)(B) SUPPLYING AND LAYING IN THE SPECIFIED PATTERN OF INTERLOCKING CONCRETE BLOCK PAVEMENTS (ICBP) WITH CONCRETE BLOCKS (WITH CONCRETE GRADE AS SPECIFIED AS PER TABLE I OF IS 15658 : 2006) MANUFACTURED FROM BIS LICENSEE MANUFACTURE, 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 BLOCKS, AS PER CI. 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 STRENGTH/BREAKING LOAD AS PER ANNEXURE G OF IS:15658, ON THE PREPARED BASE COURSE OF SPECIFIED CBR AS PER TABLE 1 OF IRC SP63(20018) OR ELSE AS MENTIONED IN DESIGN AND DRAWING WITH A CUSHION OF COMPACTED BEDDING SAND OF 25 -35MM THICK (GRADING OF THE BEDDING SAND AS PER CLAUSE 6.5.1 OF IRC SP 63) AND FILLING UP THE GAPS IN BETWEEN PAVER BLOCKS WITH JOINT FILLING SAND ( THE GRADING OF THE JOINT FILLING SAND WILL BE AS PER CLAUSE 6.5.2 OF IRC SP63) AND COMPLETING THE EDGES WITH CUT BLOCKS AS PER CL.NO. 8.7 OF IRC SP63(2018) WITH PROPER CONFINEMENT OF BEDDING AND JOINT FILLING SAND, COMPACTION LEVELING AND FILLING UP OF THE EDGE GAP. 50MM THICK,(II) COLORED DECORATIVE.