249/2022 NNT 2021-2022 Drainage work

Amount

Earthwork excavation for foundation and depositing on Bank with metal lead of 10m and initial of 2m in Hard stiff clay, stiff black cotton,hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders including all labour charges etc.complete as per SS 20 B TNDSS NO. 23 &24 VI (S2) VI VII 9,10

Cement concrete of mix 1:4:8 (one part of cement, four parrt of sand ,and eight part of coarse aggregate) using hard broken granite stone jelly of 40 mm gauge for foundation levelling course, including shuttering, dewatering wherever necessary and laid I layers of not more than 15cm thick complete complying with standard specifications and drawings and as directed by the departmental Engineers including all cost & conveyance of materials laying curing etc., complete as per TNDSS NO. 28 & VI (S2) VI (S5A) VII

Supplying and erecting centering for sides and soffits including supports and srtutting upto 3.29mm height for plane surfaces in all floors with cross bracings using miled steel sheets of size 30cm x 60cm and 10 gauge stiffened welded with miled steel sheets of size 25mm x 25mm x 3mm for boarding and laid over silver oak (country wood).Joists of size 10cm x 6.5cm dia spaced at about 90cm centre to centre and supported by casurina props of 10cm to 13cm dia spaced 75cm centre to centre etc., complete complying with standard specification ans as directed for the following items as per . (For Drain,Deck slab & Retainingwall) TNDSS NO. 30&86 3.1 Below 1.00 mt Height ( With strutting )

Vibrated Cement concrete of 1:2:4 mix (one part of cement, two parrt of M sand ,and four part of coarse aggregate) using hard granite stone jelly of 20mm gauge for sidewall concrete works excluding shuttering , including dewatering wherever necessary including the cost of all materials and labour charges for mixing concrete and curing etc. complete as per TNDSS NO 24

Finishing the top of drain vent Portion with granolethic finish in cement concrete 1:2:4 mix using 10-12mm ISS metal to 25mm thick including cost and conveyance of all materials to site and all labour charges for mixing, laying, curing etc complete

APPU CONSTRUCTION