Construction of 120 seated ST Girls Hostel at SSD Girls High School, Chitrakonda (Konda Reddy)

Earth work excavation in stony earth, and gravel mixed with stone and boulders not exceeding 0.014 cum in volume within 50M intial lead and 1.5M initial lift including rough dressing and breaking clods to maximum 5 cm to 7 cm and laying the layers not exceeding 0.3M depth and as per specification approved by the Department.and as directed by the E.I.C. a) Ordinary Soil

b) Soft Rock

c) Hard Rock

Extra for every additional lift of 1.5 M or part there of in excavation / banking excavated or stocked materials a) Ordinary soil

Supplying & Filling foundation trenches , plinth & ditches with clean course river sand well watered and rammed in layers not exceeding 23 c.m. in depth with all lead and lift including cost, conveyance, loading, unloading, stacking,royalties and all taxes of sand,cost & conveyance of water, cost of all Labour,labour cess,T&P required for the work etc. complete in all respect as directed by the Engineer- in -charge.

Back filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead upto 50 m and lift upto 1.5m.

Making plinth protection 150 mm thick of cement concrete 1:3:6 (1 cement: 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including finishing the top smooth etc. complete as per direction of the E.I.C.

With Chlorpy;rophos / Undone E.C 20% with 1% concentration

Providing and laying P.C.C[1:4:8] using 4cm size metal etc in foundation and floors using cement , 40 mm size crusher broken H.G.Metal and screened and washed sharp river sand for mortar of approved quality and from approved quarry including hoisting ,lowering and laying concrete to the required level, ramming ,watering and curing etc

Providing and laying in position ready mixed M25 grade concrete having compressive strength at 28 days test not lessthan 250kg/sq.cm for reinforced cement concrete work using cement content as per approved design mix etc including Rigid & smooth centering and shuttering. I) For R.C.C foundation, footing bases of column, mass concrete,pre-cast etc.