repairing at different stretches of cooch behar dinhata gitaldha road from 5.25 km to 6.00 km under cooch behar division , pwd during the year 2025-26.- 1 (c) 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 from bis licensee manufacturer, with spacer nib (small protruding profiles on thevertical face of a paver block used as a device for keeping minimum joint gap in between the paving blocks, 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 is :15658 with flexural strength/breaking load as per annexure g of is:15658,on the prepared base course of specified cbr as per table 1 of irc sp 6380 mm thick. grey 2 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. pakur 3 construction of sub base using local materials:construction of sub base using local materials, spreading in uniform layers with motor grader on prepared surface, including screening the metal asnecessary, 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).(iv) for construction of sub base by compacting river bed materials. 4 providing and laying bituminous profile corrective course using mobile hot mix plant (light duty) and using aggregates of grading-2 of table-33 premixed with 75kg of bitumen per cum, transported to site laid over a previously prepared surface at specified laying temperature to the required grade, level and alignment, 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 direction of engineer-incharge. 5 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 6 providing and applying tack coat using cationic bituminous emulsion of approved grade conforming to is : 8887-1978, over prepared surface including cleaning of surface with mechanical broom, moistening the surface, applying tack coat including cost and carriage of emulsion, hire charges of machineries and labour, costoffuel and lubricants all complete as per specification and direction of the engineer-in-charge. (b)over black topped surface @ 2.25 kg per 10m2: (i) by manual means. 7 add gst @ 18.00% on sum ofamount sl-01 to sl06 8 add cess @ 1.00% on sum ofamount sl-01 to sl 07