A method for improving the tightness of the anti-corrosion layers on steel reinforcing rods

摘要

1,012,581. Coatings; vacuum degassing apparatus. YTONG INTERNATIONAL A.B. March 24, 1964 [April 4, 1963], No. 12454/64 Headings B1M and B2B. In coating reinforcement bars especially for cellular concrete with a layer formed of a corrosion-protective medium consisting of a fine-grained material in suspension, the corrosion-protective medium before it is applied to the bars is treated in such a way that almost all the air enclosed is removed. The treatment may consist of spreading out the liquid on a surface and allowing it to run over at least one edge, under a vacuum such that the liquid boils. A suitable apparatus for the treatment of the liquid comprises inclined plates 11, an inlet 12 and an outlet 13; the pipe 14 is connected to a vacuum pump.