Surface finishes for rigid structures

Details Surface finishes for rigid structures Surface finishes for rigid structures

1978-02-17

1980-04-15

Lusignan, Michael R.

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106 89, 106 90, 106 97, 106 98, 52515, 427353, 427356, 428539, B05D 300, B05D 312, B32B 904

Patent

active

041984722

ABSTRACT:
An exposed aggregate surface is applied to a reinforced concrete swimming pool or similar structure by pumping through a discharge nozzle a mix which is deposited as a relatively thin layer which is then worked by trowelling to compact the aggregate and draw portland cement in the mix to the surface of the coating and a fine water spray is used to wash away the excess cement. The mix comprises fine aggregate substantially smaller in size than aggregate which will pass through a 1/2 inch mesh, a rich cement to aggregate ratio for example 1:1 by volume, the aggregate being substantially free of fines and a quantity of water such that a small slump is provided.

REFERENCES:
patent: 2517993 (1950-08-01), Falco
patent: 3021291 (1962-02-01), Thiessen
patent: 3854985 (1974-12-01), Suzuki et al.
patent: 3870553 (1975-03-01), Hussey
The Chemistry of Cement & Concrete, 1956, p. 506.

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