particular specifications (road works) - CIDCO Maharashtra Ltd.

CIDCO OF MAHARASHTRA LTD
C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 532
6.2 Caulking the joint shall be done after the lead is poured. All excess
lead protruding outside of the socket shall be removed with a flat
chisel and joints caulked number of times (minimum three) all along
the circumferential joints to make the joint watertight. The joint when
completed should be flush, neat and even with the socket. Where the
pipes are not laid in continuous lengths but in stretches, the open
ends of the pipes shall be provided with wooden plug covered with
hession cloth to prevent access to dirt etc. At certain places for
jointing two faces of pipes a collar joint will have to be provided if
directed by the engineer. The collar joint will be paid under the same
rate as for socket and spigot, but collar joint will be treated as two
joints of the spigot and socket type. This item included dewatering of
trenches.
6.3 After completion of pipe laying work in whole length or in parts as
decided by the Engineer, the trench shall be partially filled back
except at the joints before taking up the hydraulic test. In each case
the contractor has to close both ends of the section of pipe line to be
tested either by providing cap, blank flange or by sluice valve as per
directions of the engineer. If necessary both the ends shall be
properly anchored by providing M-20 c.c. blocks of required
dimensions. Payments will be made for providing these c.c. block
under the respective items. Contractor shall provide required
number of plug points with ferrule of required diameters to save as
injection points, air relief points etc. on the completion of the test,
these points shall be closed by the plugs by the contractor. No
separate payment will be made for this. The contractor shall make
necessary arrangement to fill the section of main to be tested by
taking available size connection from existing main nearby or from
any other sources. The charges for water supplied, for making and
removing connection will have to be borne by the contractor only.