Various Repair Works On Defective Roads Under Pwd City Div Kota; 1 Providing and laying dense graded bituminous macadam with 100-120 TPH batch type HMP producing an average output of 75 tones per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5 percentby weight of total mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH Specifications Clause 505 complete in all respects. Bitumen (VG-30) Grading - II (26.50 mm (Nominal Size)) 2 Providing and laying bituminous concrete with 100-120 TPH batch type hot mix plant producing an average output of 75 tonnes per hour using crushed aggregates of specified grading, premixed with bituminous binder @ 5.4 to 5.6per centof mix and filler,transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MoRTH Specifications Clause 507 complete in all respectsfor Grading-II(13 mm nominal size) Bitumen (VG-30) 3 Marking Centre Line and stop lines etc. on road as per IRC pattern with thermoplastic paint of approved quality and make with 8% glass beads laid on the road surface at temperature 160 C with a special applicator machine complete with a special applicator machine complete with labour material and traffic diversion arrangements. 4 Providing and Erecting typical Citizens information Board as per approved drawing & specification made of two MS sheet of 1.6 mm thick each of size 900mm x 750mm stiffend by angle iron 25mmx25mm x 3mm all around the plate & plates fixed on frame of 75mm dia pipe of 12 SWG sheet (vertical post 3050 mm with angle holdfasts and horizontal member 900mm) to be joined by embedded in cement concrete M-15 grade of block of 600mmx 600mm x 750 mm size below ground level as per enclosed drawings & as directed by Engineering incharge. All MS will be stove anmeled on both side lettering. Figuring and border will be with ready mixed synthethic enamel paint of superior quality in required shade and colour etc complete in all respect. All sections of framed post and steel tube will be painted with primer and two coat of epoxy paint as per drawing and as per Specification. 5 Clearing and grubbing road land including uprooting wild vegetation, grass, bushes, shrubs, saplings and trees of girth upto 300 mm, removal of stumps of such trees cut earlierand disposal of unserviceable materials and stacking of serviceable material to be used or auctioned, upto a lead of 1000 m including removal and disposal of top organic soil not exceeding 150 mm in thickness as per MoRTH Specification Clause 201. By Mechanical Means In area of non-thorny jungle 6 Dismantling of cement concrete pavements by mechanical means using pneumatic tools breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials upto a lead of 1000 m, stacking serviceable and unserviceable materials separately 7 Construction ofun-reinforced , plain cement concrete pavement M30 (Grade), thickness as per design, over a prepared sub base, with 43/53 grade cementas per Clause 602.2.2 , coarse and fine aggregates conforming to IS:383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a in fullyautomatic Batching Plant andtransported to site intransit mixer for having continous agitated mixer, manufactured as per approved mix designincluding pumping of R.M.C. from transit mixer to site of laying , with all lead and lift including cost of admixtures in recommended portion as per IS 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer in charge laid in approved fixed side formwork (steel channel, laying and fixing of 125 micron thick polythene film, wedges, steel plates including levelling the formwork as per drawing), spreading the concrete with shovels, rakes, compacted using Fixed Form Paver and finished in continuous operation including provision of contraction and expansion, construction joints, applying debonding strips, primer, sealant near approaches to bridge/culvert and construction joints, admixtures as approved, curing of concrete slabs for 14-days using water finishing to lines and grade as per drawingand MoRTH Specification Clause 602 including vaccum dewatering process with all required equipments (Dowel Bars will be paid seprately). 8 Providing and filling joint sealing compound in CC Pavement/Structures as per drawings and MoRTH specifications with coarse sand and 6 per centbitumen by weight 9 Applying pre-packed cement based polymer mortar of strength 45 Mpa at 28 days for replacement of spalled concrete including removal of old damaged concrete and all arrangement for applying it complete as per MoRTH specifications. 10 Providing and Laying Treatment of Wear and Tear Concrete surface with pre-mixed, high performance, curing free, quick setting ready to use cement mortar for repairing of pot holes with minimum 25mm depth and without cutting the panel so that traffic can be mobilized in 4 hours. The high performance Ready Mix Concrete Mortar should be curing free and able to achieve compressive strength of 10 Mpa within 4 hours and bond strength of 4 Mpa within 24 hours, non shrink and non toxic. 11 Providing and laying treatment of wear & tear of concrete surface with pre-mixed, ready to use, high performance, curing free, quick-setting ready to use geopolymer mortar for repairing of potholes on concrete surface by cutting the panel in a regular shape with minimum 50 mm depth so that traffic can be mobilized in 4 hours. The high performance mortar should be curing free, achieve compressive strength of 20 MPa within 4 Hours and 35 MPa within 24 Hours achieve bond strength of 4 MPa within 24 Hours, non shrink and non toxic.The methodology includes proper excavation and chipping of surface, cutting the panel in regular shape using concrete cutting tools and break hammer, removal of all loose particles, application of advanced bonding compound and maintaining proper thickness during application. For large area casting, expansion joints need to be maintained at an interval of every 1.8 meters.
