Re-Surfacing Black topping of road from Makspon to Neh Pho

Amount

Preparation of subgrade by excavating earth to an average of 22.5 cm depth, dressing to camber and consolidation with road roller including making good the undulation etc .and disposal of surplus earth upto 50 mtr.

Providing and laying M.S pipe 300mm dia for cross drainage of road including loading , carriage and unloading at site

Construction of granular sub base by providing close graded material conforming to specifications mixing at plant mechanical and transport by mechanical means for all leads and lifts spreading in uniform layers of specified thickness by paver machine on prepared surface in compacting with vibratory power roller to achieve the desired density complete as per specification and direction of Engineer-in-charge with material conforming to grade-1 (size range 75mm to0.075mm) having CBR value -30.

Providing laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in mechanical mix plant , for all leads and lifts , laying in uniform layers with mechanical paver finisher in sub-base I base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achieve the desired density, complete as per specifications and directions of Engineer-in –charge

Providing and applying tack coat using hot straight run bitumen of grade 80/100 including heating the bitumen, spraying the bitumen with mechanically operated spray unit fitted on bitumen boiler, cleaning and preparing the existing road surface as per specifications .On W.B.M. @0.75kg/sqm .

2.5cm premix carpet surfacing with 2.25cu.m. and 1.12 cu.m of stone chippings of 13.2mm and 11.2 size respectively per 100 sq.m. and 52 kg , and 56 kg of hot bitumen per cu.m. of stone chippings of 13.2 mm and 11.2 mm size respectively including a tack coat with hot straight run bitumen including consolidation with road roller of 6 to 9 tonne capacity etc . complete (tack coat to be paid for separately ).With paving asphalt 80/100 heated and then mixed with solvent @of 70 grams per kg of asphalt

Providing and laying seal coat of premixed fine aggregate (passing 2.36mm and retained on 180 micron sieve ) with bitumen using 1.28kg of bitumen of grade 80/100 per cum of fine aggregate and 0.60 cum of fine aggregate per 100 sqm of road surface including rolling and finishing with road all complete

Earth work in rough excavation, banking excavated earth in layers not exceeding 20 em in depth, breaking clods, ,- watering, rolling each layer with half tonne roller or wooden or steel rammers, and rolling every third and top -most layer with power roller of minimun 8 tonnes and dressing up in embankments for roads, flood banks, marginal banks and guide banks or tilling up ground depressions lead upto 50 mtr and lift upto 1. 5 mtr. in All kinds of soil:

Carriage of material by M.T:- Earth an average lead 01 kms

TSAO STEEL AND CONSTRUCTION COMPANY