Method of curing concrete articles by water vaporization

Details Method of curing concrete articles by water vaporization Method of curing concrete articles by water vaporization

1976-12-13

1978-07-11

Camby, John J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

264 82, F26B 300

Patent

active

040993370

ABSTRACT:
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.degree.-200.degree. 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 therewithin can be maintained within 5.degree. 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.

REFERENCES:
patent: 343281 (1886-06-01), Sharpe
patent: 773709 (1904-11-01), Britain
patent: 1514936 (1924-11-01), Seifert
patent: 1853419 (1932-04-01), Harris
patent: 2363226 (1944-11-01), Brund
patent: 3327032 (1967-06-01), Adams
patent: 3492345 (1970-01-01), Simunic

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