"rubble-work" is a name applied to several types of masonry. 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". 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').