Building Materials

Let's talk about RUBBLE MASONRY
Rubble masonry is adopted when the soil is poor and soft.
1. First, a wide trench is made and the bottom is concreted.
2. In random rubble masonry, uneven and undressed stones of varying sizes are generally preferred for better stability . Rubble masonry is mainly used for the shallow foundation. It can also be extended to a wall. In some cases, it can also be a retaining wall.

Rubble Masonry

The depth of the foundation generally depends on the load-bearing capacity of the soil. Depending upon the nature of soil various other techniques that can improve foundation stability are implemented along with the same. The size commonly taken is  45 cm of width and 100 to 120cm depth with ratio of 1:10 cement mortar or mud mortar

The voids/gaps should be filled with smaller stones for proper bonding and for better stability
The cornerstones must be aligned and packed properly. We need skilled masons in making a good rubble masonry. Unclean rubble masonry is easily identifiable by an expert which can greatly affect the stability of the superstructure. In some places where quarry stones are not easily available then laterite stone can be a substitute. The rubble masonry can also be made with mud mortar

See similar image at Eyeem

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