Chennai Metropolitan Development Authority

Chennai Metropolitan Development Authority has published Tender For Providing Grass Paver Block In Car Parking Area At Porur; 1 Earth work excavation for all foundations in all type of soils and sub soils to the required depth for Footings, plinth / grade beams, etc,. by mechinaries including manual excavation for the following type of soil / rock as per detailed specification. As per SS 20B as hard rock requiring blasting inclusive of shoring strutting and baling out water wherever necessary and including refilling 0 to 2.0m depth consolidation depositing the surplus earth in places shown clearing and leveling the site with an initial lead of 10 metre and lifts as specified hereunder etc., complete in all respects complying with relevant standard specification and as directed by the departmental officers. 2 Providing & laying spreading & Compacting graded stone aggeragate of size 45mm to 22.4mm, 22.4mm to 2.36mm & 2.36mm to 75 microns to Wet Mix Macadam (WMM) -150mm compacted thickness by providing,laying,paving and compacting of aggregate gradtion satisfying table 400-13 of MORTH and satisfying the physical parameters as per MORTH table 400-12, mixing in wet mix plant 200 tonne capacity at OMC, carriage of mixed material to work site and laid in pavers to the required line and grade as per the drawing and compacted with vibrator rollers 8-10 tonnee to achieve the desired density 98% of maximum dry density. The rate including the cost & conveyence of all materials, labour charges for spreading, watering, rammed & consolidation and other tools & plants employed for the work etc., all complete and as directed by the departmental officers as per MORTH specification 406 IV Revision 3 Supplying and laying of 60 mm thick TAMIN CementConcretePaverBlockover the sand filling and compacted with power rammer. The rateincludescostofpaverblock,costofsand,labour chargesforlaying,hirechargesforpowerrammer, transportation, loading and unloading etc. complete and as directed by the Departmental Officers. 4 Supplyingandlaying torequiredlineandgrade asper the drawing cementconcrete grass paver blocks of M 30 grade 60mmthick laid over the Mixing of Red Earth, sand and manurecushion of 100mm thick. The size and the shape of the concrete blocks had to be approved before sourcing / manufacturing the same. The aggregate used for the manufacture of the grass paver blocks shall be sound and free from soft apiecces. The proportion of the coarse aggregate in the mix is typically 40 percent and the fine aggregate shall be 60%. The size of the coarse aggregate should lie between 6mm and 12mm and the gradation should be in the recommended range for cement concrete mixes in general. The paver blocks shall be compacted using a light tandem roller or plate compactor till the required grade and line is achieved. The rate shall include cost of Paver blocks , Cost of red earth and Manure mixing, laying of paver blocks, leveling, loading & unloading, Transportation and labour charges etc., complete complying with standard specifications and as directed by the Engineer-in-charge . Last date of submission for this tender is 2024-12-05. This is a Paver Blocking tender in Chennai, Tamil Nadu