namakku naame thittam 2022-2023 providing precast cover slab to existing strom water drain, vadaku veethi, mela vethi, keezha veethi, therku veethi, perumal koil street, perumal koil mela veethi in keelvelur town panchayat, nagapattinam district , centering for soffits of reinforced cement concrete and plain cement concrete slabs of plane surface like lintels, beams, etc., including strutting 3m high using mild steel sheets of size 90cm x 60cm x and bg 10 stiffened with ms angles of size 25mm x 25mm x 3mm laid over silver oak joists of size 10cm x 6.5 cm spaced at about 90 cm c/c and supported by consurina props of 10 cm to 13cm dia spaced of 75cm c/c complying with standard specifications and as directed by the departmentsl officers etc., complete , cement concrete 1:2:4 (one cement, two fine aggregate and four course aggregate) mix using 20mm hbg iss metal from approved quarry including cost and conveyance of all materials to site and labour charges, including dewatering if found necessary and laid in layers of not more than 15cm thick and compacted etc., complete complying with standard specifications as directed by the departmental officers , supplying and fixing reinforced cement concrete pre cast 100mm thick slab in reinforced cement concrete 1:1 1/2:3 mix including cost of reinforcement grill but including moduling, finishing watering curing and fixing in position etc., complete as per std., specifications.,