tender for earthwork excavation in all soils and sub soils except hard rock not 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 ss 20 b tndss no: 23&24vi (s2), vii 9,10 , plain cement concrete of mix 1 : 4 : 8 (one cement ,four sand & eight aggregates) using 40mm size iss hbg metal machine crushed metal 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: 28 v, vi (s2) v,vi (s5a) vii , supplying and errecting centering to sides and soffits including supports and strutting for drainage sides and culvert body wall sides using 90cm x 60cm and b.g 10stifened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding laid 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 tndss no: 30&86 side wall , culvert deck slab , plain cement concrete 1:2:4(one cement, three sand & six aggregate) using 20mm size iss hbg metal machine crushed metal 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: 24 , providing granolithic floor finish of the 25mm thickness with plain cement concrete 1:2:4 (one cement, two sand and four aggregate) using 10 to 12mm gauge hard broken stone jelly including laying, finishing and the top rubbed smooth with power trawl, etc. ,complete complying with standard specification. , providing and laying in position standardised concrete mix m-20 grade in accordance with is 456 - 20