Haryana Urban Development Authority Tender

App. Item Cleaning of silt from manhole of sewerline of size from 200mm to 500mm i/d including cost of dismantling two nos. plugs in each manhole. The rate includes the cost of safety equipments and labour and disposing of Malba etc. complete in all respect upto the entire satisfaction of Engineer-in-Charge of work.

21.90 Construction of rectangular standard brick masonry manhole chambers to standard drawings on S.W. pipe sewers or other circular pipe sewers up to the required depth in 1.5 cement sand mortar, lime concrete in bed and sides of pipe sewer and cement concrete 1:2:4 in benching, 12 mm thick water tight 1:2 cement sand plaster with a floating coat of neat cement and finished with 2 coats of sodium silicate on interior surface where required, reinforced cement concrete slab 180mm thick fixing 560 mm internal diameter C.I. manhole cover and frame weight not less than 2.5 quintal painted with 3 coats of black bitumen paint, fixing galvanised malleable iron steps embedded in 1:2 cement sand mortar complete. the rate covers the cost of M.S. steel for R.C.C. slab labour for fixing and carriage of C.I. manhole frame and cover and malleable iron steps from the stores of the Engineer-in-charge of the works to the site of works. The rate also include the cost of accurately planned and fitted centering, supports for all works as well as for all curves and special work, cleaning out their beds etc. sodium silicate shall be supplied free of cost at the stores of the Engineer-in charge. 21.90.4 On 200 mm internal diameter pipe sewer 21.90.4.1 for 1.80 meters depth below ground level

21.93 Providing and fixing SFRC MANHOLE COVERS AND FRAMES MARKED WITH IS: 12592 including setting the same to correct lines and levels in 1:3 cement sand mortar over manhole including carriage loading unloading stacking handling re-handling etc. complete in all respects to the satisfaction to the Engineer-in-charge. 21.93.2 Type:- Extra Heavy Duty Set (EHD-20) 560MM Clear Opening