Simulated volcanic rock

Details Simulated volcanic rock Simulated volcanic rock

1980-10-31

1982-05-25

Lusignan, Michael R.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

106 97, 427221, 427273, 427352, 427336, 428404, B32B 1302, B05D 700, B05D 310

Patent

active

043317340

ABSTRACT:
A simulated volcanic rock is described, as well as a method for producing the same. The rock includes a central core encased within a concrete coating formed from a plaster which includes an aggregate of expanded polymer particles. During production of the rock, the polymer particles at the exterior surface of the coating are exposed and subsequently dissolved to leave such exterior surface with pocks simulating the gas-formed voids typically present on the surface of natural volcanic rock.

REFERENCES:
patent: 2644772 (1953-07-01), Kaye
patent: 2806256 (1957-09-01), Smith-Johannson
patent: 3020597 (1962-02-01), Smith-Johannson
patent: 4256501 (1981-03-01), Banino

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