ABSTRACT
The disintegration of continuous water jets due to laser pulses is discussed by Mazurkiewicz (1983). In demolition practice no case of application of this principle is known. Momber (1992) has developed and tested a so-called water-air jet. H e obtained an efficiency gain of 150 per cent compared to a plain water jet. Also he found that optimum air contents exist for the material removal (Fig. 7).
