construction of strom water drain ward no 3, auttur main road in namagiripettai town panchayat in namakkal district , earthwork excavation in all soils and sub soils except hard rock requiring blasting with initial lead and lift including re-filling the sides of foundation in layer of 15 cm thick watering , ramming ,depositing the surplus earth in the premises as directed by departmental officers etc., complete as per standard specification. as per ss 20 b tndss no: 23&24vi (s2), vii 9,10 , plain cement concrete 1:4:8 mix( one part of cement, four part of m.sand and eight part of aggregates) using 40 mm iss hbg metal including cost and conveyance of all materials to work site and all labour charges for mixing, laying, consolidating and curing etc complete as per the standard specifications. tndss no: 28 v, vi (s2) v,vi (s5a) vii , supplying and errecting centering to sides and soffits including supports and struttingfor drainage sides andculvert body wall sidesusing 90cm x 60cm and b.g 10stifenedwith welded mild steel angles of size 25mm x 25mm x 3mm for boardinglaid over( silver oak joists ) of size 10cm x 6.50cm spaced at about 90cm including all labour charges and cost and conveyance of all materials to site etc. complete complying with standard specification. tndss no: 30&86 , drain , b) ground floor , 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 as per tndss no: 28 & vi (s2) vi (s5a) vii standard specifications as directed by engineer incharge. , providing granolithic floor finish of the25 mm thickness with plain cement concrete 1:2:4 (one cement, two m.sand and four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, thread lining, curing etc. complete complying with standard specification and as directed by the departmental officers. (the rate is inclusive of necessary planking for panellingwherever necessary and as directed by the departmental officers) , suppling and fabricating and placing in position ms(or) r.t.s. bar for reinforcement to all rcc works as per the design given including cost ofsteel and binding wire also in all floors. , providing and laying in position standardised concrete mix m-25 grade in accordance with is 456 - 2000 using 20mm and down graded hard broken granite stone jelly for all rcc items of works with minimum cement contenet of 350kg/ cum and maximum water cement ratio of 0.55 including admixture (plasticiser / super plasticiser) in recommended proportions as per is 9103 to accelerate, related setting of concrete, improve workability without imparing strength and durability with about (5.0cum), 7730kg of 20mm machine crushed stone jelly and with about (3.3 cum), 5156kg of 10 - 12mm machine crushed stone jelly and with about (4.79cum) 7670 kg of crushed stone sand (m- sand) but excluding cost of reinforcement grill and fabricating charges centering and shuttering but including laying, vibrating with mechanical vibrators, finishing, curing, etc and providing fixtures like fan clamps in the rcc floor / roof slabs wherever necessary without claiming extra cost etc., complete complying with standard specification and as directed by the departmental officers - the coarse and fine aggregates to be used should comply with the requiremnents of is standards.