construction of drainage at asirvathapuram in nazareth town panchayat. ; 1 earthwork excavation for foundation in all soils and sub soils in hard stiff clay, stiff black cotton, hard red earth, shales, murram, gravel, stoney earth and earth mixed with small size boulders and to full depth as may be directed, except in hard rock, requiring blasting including shoring and shuttering and bailing out of water wherever necessary, refilling the sides of foundation with excavated earth or sand in layer of not more than 15cm thick.well rammed and consolidated and depositing on bank with initial lead and lift of 10m & initial lift of 2m and depositing the surplusr earth within the compound in places shown by the departmental officers with iniital lead and lifts, clearing and levelling the site etc., complete as per ss20b and as directed by departmental engineers ( tndss no.23, 24 ) . 2 plaincement concrete 1:4:8 mix ( one cement, four fine aggregate crushed stone sand and eight coarse aggregate ) using 40mm iss hbg metal for foundation and basement including dewatering if found necessary and laid in layer of not more than 15cm thick and consolidated including all cost conveyance of materials and labour charges etc. complete as per standard specifications and as directed by departmental engineers ( tndssno.28 ) . 3 supplying and erecting centering for sides and soffits includingfor plane surfaces in all floors with all cross bracings using mild steel sheets of size 90cmx60cm and 10 gauge stiffened, welded with mild steel angles of size 25mmx25x3mm for boarding laid over silver oak ( country wood ) joist of size 10cmx6.5cm dia spaced about 90cm centre to centre and supported by casuarina props of 10cm to 13cm dia spaced at 75cm centre tocentre etc.complete complying with standard specification and as directed by the departmental engineers. tndss no.30 &86 4 a ) with out strutting ( pcc work ) below gl up to 1.00m 5 plain cement concrete 1:3:6 ( one cement, three sand and six hard broken stone jelly ) using 20mm jelly for wearing coat including laying, compacting, finishing and curing, etc., complete as per standard specificatins and as directed by the departmental officers. 6 finishing the top of flooring with granothatic flooring with cement concrete 1:2:4 ( one cement, two sand and four aggrigate ) using 6 to 12mm stone chips – 25mm tk etc., complete.