Public Works Department Tender

Construction of embankment, sub grade and shoulders of new road with soil of minimum CBR (4 days soaked) of 8% obtained from borrow pit with all lead and lift transporting to site, spreading, grading to required slope and compacted to meet requirement of table 300-2 of MoRT&H specification clause No. 305. The finished road surface will be as per X-section approved by employer with respect to GTS. At no place top of sub grade of raised road will be less than 0.90 m above adjoining NSL. NSL for a block of 100m will be worked as mean of 6 levels taken on 20 m center to center length of road. These six levels are at three location on both side one at edge ROW. Other at 5 m and 10 m away from ROW. In case the quantity of earth work calculated with NSL and finished level found to be less than 2320 cum. Then actual quantity (less than 2320 cum) will be paid. In case quantity worked out is more than 2320 cum, then only 2320 cum will be paid. Excess quantity shall be incidental to work and nothing extra will be paid. Further it shall be ensured that atleast 500 mm of sub grade with earth of CBR 8% shall be constructed at each location. Wherever any cutting of existing subgrade is required on this account excavation as well as handling and disposal of earthwork to accommodate minimum 500mm thick subgrade of minimum 8% CBR shall be carried out by the agency at his own cost. Nothing extra will be paid on this account. Before start of work, L-section shall be got approved from the employer with respect to GTS. However, typical X-section attached at section 9 of DNIT.

Providing & Laying 30 mm thick compacted Bituminous Concrete (BC) in one layer with 100-120 TPH batch type hot mix plant and with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheele, vibratory and with pneumatic tyred roller of 12 to 15 tonne weight with a typre pressure of a least 0.56 MPA and tandem roller to achieve the desired compaction as per clause no. 507 MORT&H specification (54th Revision) 2013 for road and bridge works (5th Revision)2013 using minimum 5.4% to bitumen grade VG-30 as binder content by weight of total mix, complete in all respects including cost of bitumen instruction issued from time to time by MoRT&H regarding machinery & bitumen will be followed strictly. The use of self propelled mechanical paver fitted with electronic sensor device conforming to MoRT&H specification in mandatory. If bitumen required more than 5.4% as per job mix formula no extra payment will be made, extra bitumen required will be considered as incidental to work. Note:-Before carrying out BC, coating & stripping of bitumen aggregate mis is to be performed in accordance with IS-6241. If coating and stripping of bitumen aggregate mis is less than 95% anti-stripping agent will be used by contractor. The anti-stripping agenct should conform to the requirement as stipulated in IS 14982:2017. The cost so incurred will be considered as incidental to work and noting extra shall be payable. The type and brand of anti-stripping agent along with procedure shall be approved by SE-in-charge in writing before start of work. A proper record of result be maintained and same shall be submitted along with bill by the contractor.

Providing, laying 100 mm thick spreading and compacting graded stone aggregate to Wet Mix Macadam (WMM) specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver in sub- base/base course on well prepared surface and compacting with vibratory roller to achieve the desired density as per MoRT&H specification for road & bridge (5th Revision) of 2013 as per drawing and design directed by the Engineer complete in all respects as per clause No.406. (N.S.) Note: - 1.Only crushed stone metal material should be used. No local earth/ natural occurring sand shall be used. The material finer than 425 micron shall have zero Plasticity Index (PI). 2. Materials to be used and operations manufacturing shall be approved by engineer.