rcc sump 9000 lit at katkarwadi
designing (aesthetically), and constructing rcc ground service reservoirs / rcc sumps in m-300 mix. of required capacity including excavation in all types of strata, foundation concrete,container walls, bottom slab top rcc roof slab / or dome, 20 mm thick cement plaster with water proofing compound in cm1:3 proportion. to inside face of the container,including epoxy paint from inside including refilling and disposing of surplus stuff within lead of 50 m, all labour and material charges, for laying and jointing of pipe assembly for inlet, outlet washout,over flow and bye-pass arrangement consisting of c.i./ m.s.d/f. pipes, specials and valves of given diameters, providing and fixing accesso- ries such as stainless steel ladder inside andoutside, c.i. manhole frame and cover, water top slab, b.b.masonry chamber for all valves, ventilating shafts, including giving satisfactory hydraulic test and water tightness test as per is code and providing three coats of acrylic emulsion with silicon additives paint to all expose surface of structure including roof surface etc. com- plete as per design data,criteria, obligatory requirements and detailed specifications.antitermite treatment shall be given for under ground portion of structure.
note :
1. the designing shall be in accordance with various rel evant i.s. specification (i.s. 456/2000 (latest edition) , i.s. 875 -
1987, i.s.3370-1965 or revised.)
2. only m.s. bars grade i confirming to i.s. 432 part-i or high yield strength deformed bars confirming to i.s. 1786 or i.s.1139 shall be used grade ii m.s. bars shall not be used.
3. entire structure shall be constructed in m300 only.
4. the scope of pipe assembly work shall be upto 5 metre
beyond outside face of the wall, cost of pipes valves and
specials is not included in the rate but labour cost for laying and
jointing is included.
5. the g.s.r. / sump above 15 lakh litres capacity shall be in
two compartment.
6. the job includes designing the structure for uplift pressure
and dewatering if required using entire execution and disposal
of surplus excavated stuff within lead of 50 metres as directed
by engineer-in-charge. if up lifts considered in design then
these rate shall be increased by 7.5.
7. g.s.r. outlets shall be with bell mouth of approved partern in bottom slab and cost of designing bell mouth is included in therate. sump well includes cost of suction pit required at bottom.
8. for pipe diameters upto 300 mm only ci pipes and ci specials shall be used. for pipe diameters above 300mm,m.s.pipes and specials minimum 10 mm thick shall be used with proper anticorrosive epoxy treatment from inside and outside.
9. cost of pump house is not included in these rates.
10. above rates are applicable for seismic zones-2,3 and 4.
11. 75 part rate shall be payable for reinforcement,concrete and plastering items of all types of g.s.r.s. and sumps till satisfactory hydraulic testing for water tightness test is given and till that work shall be treated as incomplete.
12. 10 shall be added for sump if overhead pump house is
proposed
note : condition from sr. no. 1 to 11 shall form a part and
parcel of tender and must be included in the draft tender
papers for work of r.c.c. gsrs and sump.
sump of cap 10000 litres rate rs is
