HARDCORE / SOLING UNDER FLOORS/FOUNDATIONS:
SCOPE
The work covered under this specification includes all type of soling work either by bricks
or
by rubble
stones
laid
under
floors
/
foundations, hand
packed,
complete
as per
specification mentioned below and applicable drawings.
RUBBLE SOLE FLOORING
The rubble stone shall be of best variety of black
trap
/ granite / basalt or other approved-variety
of stone
available locally. The stone shall be hard, durable free from defects and of required size and shall be approved
by the Engineer-in-charge.
PREPARATION OF SURFACE
The bed on which rubble soling is
to be
laid shall be cleared of all loose materials, leveled, watered ad
compacted and got approved by
the Engineer-in-charge before laying
rubble soling. Cable or pipe trenches if shown
in
the drawing and as required
by the Engineer-in-charge shall be got done before the soling is started.
WORKMANSHIP
Over
the prepared surface, the stone shall be set as closely as possible and well packed and firmly set. The stones shall be of full height and shall be laid so as to have their bases of the largest area resting on the sub-grade. Soling
shall be laid in one layer of 230mm or 150mm depth or specified thickness of soling
with a tolerance of 25mm.
After packing the stones properly in position, the interstices between them shall
be carefully filled with quarry spoils or stone chips of larger size possible to obtain a bard, compact surface. Spreading of loose spoils or stone chips is prohibited.
The entire surface shall be examined for any
protrusions and the same shall be knocked off by
a hammer
and all interstices shall be filled with approved murrum. Excess murrum if any over the surfaces shall be removed. Unless otherwise specified, the murrum shall be supplied by
the
contractor at his own cost from the selected area.
The
surfaces shall then
be watered and consolidated with mechanical or sufficiently
heavy wooden
tampers
and
log-rammers
as approved by
the
Engineer. After compaction, the Engineer-in-charge to give the
required
slope or level and dense sub-base
and the surface shall present clean look.
Adequate care
shall be taken
by
the contractor while laying and compacting the rubble soling to see that concrete surfaces in contact with
soling are not damaged.
MODE OF MEASUREMENT
The
quoted rate shall be per square metre of the soling of specified thickness. The linear dimension shall be
measured up to two places
of decimals of a metre and are worked out correct to
the two places
of decimals of a square metre.
Plan areas of soling work actually done limiting to the dimensions as per drawings shall be
measured for payment. The rate shall include all the materials labour, transport etc. and no extra payment shall be made for work
done
at different levels. The rate shall also include the cost of preparation of surface, all materials and labour, watering,
consolidation etc. all complete.
