tender for improvements to the existing kuttai in s.f no.147 / 1, 148 in chettipalayam town panchayat; 1 earth work in all soils except hard rock requiring blasting and conveying for formation of bund with lead of 0 to 100 metre deploying earth moving machinery and tippers including benching, formation of bunds, breaking clods, sectioning etc., complete 2 earth work deploying earth moving machinery for desiliting channel and forming bund on either sides and depositing the eatrh on banks including jungle cleareance etc compilteetc., complete 3 earth work excavation for foundation in all types of soils and sub soils to full depth ( such as soils in rock / silt / light black cotton soil / ordinary soil ) except in rock requiring blasting but inclusive of shoring, shuttering and bailing out water wherever necessary and refilling the sides of foundation with excavated earth other than sand in layers of 150 mm thick well rammed and consolidated, depositing the surplus earth in places shown by the departmental officers with initial lead of 10 m and initial lift of 2 m. complete as per tnss23 & 24, v, vi ( s2 ) , vii, 9, 10 4 plain cement concrete of mix 1 : 4 : 8 ( one part cement, four part sand & eight part of aggregates ) using 40mm gauge hard broken metal from approved quarry including all cost, conveyance of materials to site with proper mixing, compacting, finishing and curing etc., complete as per standard specification. tndss no: 28 v, vi ( s2 ) v, vi ( s5a ) vii 5 supplying anderrecting centeringfor sides and soffits including necessary supports and strutting upto3.29mt height for plane surfaces as detailed below in all floors with all cross bracings using mild steel sheets of size 90mm x60mm and 10bg stiffened with welded mild steel angles of size 25mm x 25mm x 3mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 90cm centre to centre and supported by casurina props of 10cm to 13cm dia supported at not more than 75cm centre to centre etccompletecomplying with standard specification without strutting.tnss no or nbc no 30 ( s ) 86 86 a v, vi ( s3 ) vii 6 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.