tender for purchasing material and supply of material , purchasing material , item no: 1 providing isi standard reinforced cement concrete pipes in standard lengths of following class and diameter suitable for either collar joints or rubber ring joints, excluding gst levied by goi & gom in all respect including inspection charges, transport to departmental stores, unloading and stacking etc. complete as per is-458/1988. , item no. 2:excavation for foundation / pipe trenches in earth, soils of all types, sand, gravel and soft murum, hard murum, boulders, w.b.m road including removing the excavated material upto a distance of 50 metres and lifts as below, stacking and spreading as directed, manual dewatering, preparing the bed for foundation and excluding backfilling, etc , iteam no 3 excavation for foundation / pipe trenches in hard murum including removing the excavated material upto a distance of 50 m and lifts as below, stacking and spreading as directed by engineer-in-charge, normal dewatering, preparing the bed for foundation and excluding backfilling, etc. complete.bd-a-2/259) , item no 4: lowering, laying and jointing in proper grade and alignment reinforced cement concrete pipes with collar joints in c.m. 1:1 proportion or socketed reinforced cement concrete pipes with rubber joints (excluding cost of rubber ring or reinforced cement concrete collar,) including cost of conveyance from stores to site of work, cost of jointing material, labour, etc. complete as directed by engineerin- charge (for all class of pipes.) as per is-783-1985. , item no. 5:filling in plinth and floors murum bedding in trenches with approved murum from excavated materials from foundation 15cm to 20cm layers including watering and , item no: 6 providing and laying in situ cement concrete of trap/granite/quartzite/gneiss metal for plain cement concrete work below foundation and footing including normal dewatering,plywood form work, compaction, finishing and curing, etc, complete. , item no 7: providing and constructing b.b. masonry valve chamber with 15 cm thick 1:3:6 proportion plain cement concrete bedding, excluding excavation, b.b. masonry in c.m. 1:5 proportion precast reinforced cement concrete frame and cover, etc. complete as directed by engineer-in-charge. , item no.8: refilling the pipe line trenches with available excavated stuff with soft material first over pipeline and then hard material in 15 cm layers with all leads and lifts including consolidation, watering etc complete.