Rubble

[1] One kind, where the stones are loosely thrown together in a wall between boards and grouted with mortar almost like concrete, is called in Italian "muraglia di getto" and in French "bocage".

[1] In Pakistan, walls made of rubble and concrete, cast in a formwork, are called 'situ', which probably derives from Sanskrit (similar to the Latin 'in situ' meaning 'made on the spot').

[citation needed] Work executed with more or less large stones put together without any attempt at courses is called rubble[1] walling.

One can see many rubble walls on the side of the hills and in valleys where the land slopes down and consequently the soil is in greater danger of being carried away.

[citation needed] In the British Islands, many mediaeval and post-mediaeval buildings are built of small natural stones, called rubble.