F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
25/107
F27D 7/02 (2006.01) B28B 11/24 (2006.01) C04B 40/02 (2006.01)
Patent
CA 1075447
METHOD OF CURING CONCRETE ARTICLES BY WATER VAPORIZATION ABSTRACT OF THE DISCLOSURE Concrete articles to be cured are charged into a kiln. A hot water bath is maintained on the kiln floor and the water is circulated through a heat exchanger and sprayed beneath the level of the concrete articles into the water bath to maintain the water bath at a temperature of 100-200°F to thereby maintain the internal kiln atmosphere at a humidity greater than 90% and at a sufficiently high temperature to effect hydration and hardening of the cement and due to the closed nature of the kiln, the temperature there- within can be maintained within 5°F from top to bottom. The sprayed hot water supplies the needed heat energy and the water vaporization within the kiln provides the degree of moisture needed to cure the concrete articles. As water rather than steam is used, less energy is needed to heat the water than required to generate steam so that the overall cost of curing the concrete articles is considerably reduced as compared to steam curing methods.
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