SCHOOL IMPROVEMENT 2025-2026 ADW

Earth work excavation for foundation in all soils and sub-soils and to full depth as may be directed except in rock requiring blasting inclusive of shoring shuttering, bailing out water wherever necessary and depositing the surplus earth within the compound in places shown by the departmental officers with an initial lead of 10 mts and initial lift of 2 mts. and clearing and levelling the site, etc., complete complying with standard specification.

Cement Concrete 1:4:8 (One Cement, Four M.Sand and Eight hard broken stone jelly) using 40 mm gauge hard broken granite stone jelly for foundation including dewatering wherever necessary and laid in layers of not more than 15 cm thick well rammed, consolidated and curing etc. complete.

Supplying and filling Crushed stone sand (Commercially called M-Sand) as shown by the departmental officers in layers of not more than 15 cm thick well rammed, watered and consolidated etc. complete complying with standard specification

Supplying and filling GRAVEL in 'foundation and basement with filling crushed stone sand in layers of not more than 15cm.thick well rammed watered and compacted -1m3 etc., complete complying with standard specification.

Refilling with excavated earth other than crushed stone sand with an initial head load of 100 mts. and depositing the earth as shown by the departmental officers in layers of not more than 15 cm thick well rammed, watered and consolidated etc. complete complying with standard specification

BRICK WORK in cement mortar 1:6 (One cement and Six M.Sand) using Fly Ash bricks of size 230mmx110mmx70mm-virtually the bricks shall be sound compact and uniform in shape free from visible cracks warppage flaws and organic matter.the bricks shall be solid with frog on one of its bearing side. class designation not less than 35 kg/sq.cm an average compressive strength in cement mortar 1:6 one cement and six M.Sand -including neat finishing ,curing etc.,complete complying with standard specification.

For Foundation and Basement.

For Superstructure in Ground floor

Damp proof course with Cement Mortar 1:4 (One Cement and Four crushed stone sand) 12mm thick mixed with best approved quality water proofing compound conforming to Indian Standard specification as specified by the departmental officers at 2% by weight of cement used, finishing and curing etc. complete complying with standard specification.

Supplying and erecting steel centering including necessary supports for plane surfaces for Reinforced Cement Concrete works such as column footings, column pedestals, plinth beams, grade beams, staircase steps, etc. which require only nominal strutting using mild steel sheets of size 90cm x 60cm and 10 BG stiffened with welded mild steel angles of size 25mm x 25mm x 3 mm for boarding, laid over silver oak joists of size 10cm x 6.5cm spaced at about 75cm centre to centre or at suitable intervals etc. complete in all floors complying with standard specifcation.