Method and apparatus for cutting concrete by use of laser

Details Method and apparatus for cutting concrete by use of laser Method and apparatus for cutting concrete by use of laser

1984-01-30

1986-02-04

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LJ, 376310, B23K 2700

Patent

active

045688141

ABSTRACT:
The slag formed when concrete is melted by exposure to a laser beam, when caused to incorporate therein a MgO-rich supplementary material, loses it viscosity and, on cooling, refrains from expanding and, consequently, assumes a readily removable state. The slag thus set can be easily removed by allowing a cleaning device such as the rotary wire brush to pass along the part of concrete melted by the laser beam. In accordance with this method, the apparatus for cutting concrete can be readily applied to a remote control system and will manifest an outstanding effect in a highly hazardous site such as is involved in the dismantling of a biological shield wall of concrete in a nuclear reactor.

REFERENCES:
patent: 3817348 (1974-06-01), Jones
patent: 4436694 (1984-03-01), Vassalotti et al.
Decontamination and Decommissioning of Nuclear Facilities, Plenum Press, New York, 1980, pp. 433-441 and 547-557.

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