supply and fixing of ferrow cover different sides of drain of municipal board siwana.-- 1 dismantling of existing structures like culverts, bridges, retaining walls, cc road and other structure comprising of masonry, cement concrete, wood work, steel work, including t&p and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead of 50 metres as directed by engineer. 2.4.1 lime concrete, cement concrete grade m-10 (1:5:10) and below 2 lime concrete, cement concrete grade m-15 and above and pcc blocks 3 carriage of materials by mechanical transport including loading, unloading and stacking :: sand, bazri, ballast, kankar 4 reinforced ferro-cement drain covers designed for aa class loading of size 600 x 800 mm 5 reinforced ferro-cement drain covers designed for aa class loading of size 1000 x 800 mm 6 reinforced ferro-cement drain covers designed for aa class loading of size 1500 x 600 mm 7 reinforced ferro-cement drain covers designed for aa class loading of size 2100 x 500 mm 8 plain/reinforced cement concrete in open foundation complete as per drawing and technical specifications a pcc grade m15