STRENGTHENING OF SWD SYSTEM BY PROVIDING AND LAYING OF 600MM (24 Inch) AND 450MM (18 Inch) I/D RCC NP 2 PIPE LINE FOR SMOOTH DISPOSAL OF STORM WATER IN RESIDENTIAL AREA OF SECTOR 42 B, CHANDIGARH. (CH. TO. CAPITAL HEAD. SWD SYSTEM).

Earth work in excavation by mechanical means (hydraulic excavator) / manual means in foundation trenches or drains (not exceeding 1:5 m in width or 10 sqm or plan) including dressing of sides and ramming of bottoms, lift upto 1.5m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soils.(DSR item No 2.8.1)

Extra for every additional lift of 1.5 m or part thereof in excavation / banking excavated or stacked materials All kinds of soil (DSR item No 2.26.1)

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete : (DSR item No 19.6) 300 mm dia. R.C.C. pipe (DSR item No 19.6.4)

450 mm dia. R.C.C. pipe (DSR item No 19.6.5)

600 mm dia. R.C.C. pipe (DSR item No 19.6.7)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering – All work up to plinth level: 1:5:10 (1 cement : 5 manufactured sand derived from recycled concrete Aggregate (RCA): 10 graded stone aggregate 40 mm nominal size (DSR item No 4.1.10A)

1:2:4 (1 Cement : 2 coarse sand i/c manufactured sand derived from Recycled concrete Aggregate (RCA) upto 25% : 4 graded stone aggregate 40 mm nominal size Recycled concrete Aggregate (RCA) upto 25%). (NSI)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in Cement mortar 1:4 (1 cement : 4 coarse sand) Cement mortar 1:4 (1 cement : 4 coarse sand) (DSR item No 6.1.1)

12 mm cement plaster finished with a floating coat of neat cement of mix 1:4 (1cement: 4 fine sand) (DSR item No 13.7.2)

Providing orange colour safety foot rest of minimum 6 mm thick plastic encapsulated as per IS : 10910, on 12 mm dia steel bar conforming to IS: 1786, having minimum cross section as 23 mmx25 mm and over all minimum length 263 mm and width as 165 mm with minimum 112 mm space between protruded legs having 2 mm tread on top surface by ribbing or chequering besides necessary and adequate anchoring projections on tail length on 138 mm as per standard drawing and suitable to with stand the bend test and chemical resistance test as per specifications and having manufacture's permanent identification mark to be visible even after ixing, including fixing in manholes with 30x20x15 cm cement concrete block 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) complete as per design (DSR item No 19.16)