Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1980-10-10
1982-04-06
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 51, 264DIG7, 264DIG15, B29D 2700
Patent
active
043235271
ABSTRACT:
A method for making light weight concrete and building elements thereof with an aggregate of foamed expanded plastic beads, e.g. polystyrene. The beads are foamed and let rest before mixing with the other concrete aggregates and forming of the concrete elements but mixing and forming processes take place before a setting of the plastic beads due to aging has taken place.
REFERENCES:
patent: 2744291 (1956-05-01), Stastny et al.
patent: 2986537 (1961-05-01), Chaumeton
patent: 3021291 (1962-02-01), Thiessen
patent: 3764357 (1973-10-01), Bowles et al.
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