B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/90
B28B 11/00 (2006.01)
Patent
CA 1172834
ABSTRACT OF THE DISCLOSURE The present invention provides a method of heat and moisture treatment of articles, e.g. concrete articles, involv- ing zone control over temperature and humidity of articles being treated within a tunnel chamber, the articles being blown with air having a temperature of 40-100°C. Prior to the step of temperature increase in a temperature increase zone the articles are treated with a steam-air mixture for a period of 1-6 hours, the temperature and humidity of the mixture being gradually increased in the range 70 to 100°C and 30 to 100 % respectively to their permissible values corresponding to the type of articles being treated; then treating the articles in an isothermal curing zone for a period of 2-6 hours with a heat-carrying agent having a temperature of 60-95°C and a rela- tive humidity close to 100 % and then blowing the articles with a cooling agent having a humidity of 35-90 % for a period of 0.3-1.5 hours. The present invention also provides an apparatus for use in the method.
362357
Bubelo Vilya V.
Froze Raisa M.
Ganzhara Vladimir I.
Timofeev Vitaly M.
Marks & Clerk
Tselinogradsky Inzhenerno-Stroitelny Institut
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