Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work
Patent
1993-05-07
1996-02-20
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
264234, 264157, 264333, 264345, 261DIG31, 261DIG43, 261DIG59, B28B 114, B28B 1114
Patent
active
054926599
ABSTRACT:
Process for the production of concrete tiles by cutting a block of concrete mixture, characterized in that the block of mixture is subjected to a preliminary curing at room temperature for a duration of at least 24 hours or to a low-pressure steam treatment at a temperature <100.degree. C. until the compression strength reaches a value of at least 20 MPa, and to a second treatment with steam in an autoclave. The cement tiles thus obtained may be bonded to the floor using a normal setting layer of cement mortar, without giving rise to any problems of detachment.
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The "Chemistry of Cement and Concrete", Revised Edition of Lea & Desch, Edward Arnold (Publishers), Ltd, 1956, pp. 342-346 & 521-522.
Aftergut Karen
Quarella S.R.L.
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