| 摘要 |
Process for heating and drying of reinforced concrete products in which is arranged a reinforcement (9) of electrically conducting material, wherein it is provided that parts of the reinforcement (9) can be reached from the outside. At least two of the parts of the reinforcement (9) which are located at a distance from each other and can be reached from the outside form two poles (4, 5) which are in electrical contact with each other by means of the reinforcement. The poles are connected to a current supply source (1) so that at least one closed circuit is formed and, with such adjustment of the current from the current supply source to the size of the concrete products together with the resistance in the closed circuit, that heat is generated in the reinforcement. Heat is conveyed to the concrete products (8) by means of heat conduction to the concrete body surrounding the reinforcement, and the heat in the concrete products (8) is detected. The current is conveyed to the reinforcement at selected periods depending on the detected heat in the concrete products. |
