tender for construction of drain at annai indira in thiruvennainallur town panchayat.; 1 earthwork excavating and depositing on bank with an initial lead of 10m & initial lift of 2m in hard stiff clay, stiff black cotton, hard red earth shales, muram, graverl stoney earth & earth mixed with small size boulders & hard gravelly soil as pers.s 20b as per standard specification. 2 plain cement concrete 1:4:8 mix (one part cement, four part sand and eight part of aggrigate) using 40mm size iss hbg metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc. complete. complying with std. specifications.as per standard specification. 3 supplying and erecting centering for sides and soffits including supports and struttingupto 3.00m heightfor plane surface such as rcc slab, rectangular beams, tee (or) ell beams, lintel bed block, slabs, landing slabs, beams canopy, side slab (or) square (or) round columns etc., as detailed below with all cross branching using m.s. sheets of size 80cm x 60cm and b.g. 10 stiffended with welded m.s. angles of size 25 x 25 x 3mm for boarding laid over silver oak or country wood joints of 10cm to 30cm to dia spaced at 75cm c/c etc., complete complying with standard specifications as directed by departmental officers etc., complete.as per standard specification. 4 plain cement concrete 1:2:4 mix (one part cement, two part sand and four part of aggrigate) using 20mm size iss hbg metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing etc. complete. complying with std. specifications. 5 supplying, fabricating and placing in position mild steel or ribbed tor steel for all reinforced cement concrete works as per design given including cost of steel and binding wire with all conveyance and lead charges in all floors etc.complete complyingwith standard specifications and as directed by the deparmental engineers.tnbp no:30 6 reinforced cement concrete 1:1½:3 mix (one part of cement, one and half part of m- sand and three part ofaggregate)using 20mm size iss hbg metal machine crushed from approved quarry including cost and conveyance of all materials to site, loading and unloading charges and labour charges for mixing, laying and curing but excluding cost of reinforcement etc.complete with std.specifications. tndss no: 30 v, vi (s3), vii-3. 7 finishing the top of flooring with granolethic floor 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