WHAT IS RUBBLE SOLING

RUBBLE SOLING
The rubble soling is the layer of bricks or rubble stones or boulders which are laid under floors or basements. it provides a hard core layer underneath a floor slab which resist the forces coming from the grounds.

Preparation of Surface

The bed on which rubble soling is to be laid should be cleared of all loose materials, leveled, watered and compacted before laying rubble soling. Cable or pipe trenches if required shall be got done before the soling is started.

Procedure of Rubble Soling

Over the prepared surface, the stone should be set as closely as possible and well packed and firmly set. The stones should be of full height and should be laid so as to have their bases of the largest area resting on the sub-grade. Soling should be laid in one layer of 230mm or 150mm depth or specified thickness of soling.
After packing the stones properly in position, the voids between them should be carefully filled with yellow soil, gravel  or stone chips of larger size possible to obtain a levelled and compact surface.
The surfaces should then be watered and consolidated with mechanical or sufficiently heavy wooden tampers and log-rammers.
After compaction, give the required slope or level and dense sub-base and the surface should present clean look. Adequate care should be taken by the contractor while laying and compacting the rubble soling to see that concrete surfaces in contact with soling are not damaged.

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