Corrosion Resistance of Reinforcement in Reinforced Concrete Products

The compositions of modified concrete and grease for metal molds have been developed, which can be recommended for wide implementation in production to increase the corrosion resistance of reinforcement. Therefore, the purpose of the study is to protect the reinforcement from corrosion in the specified period (corrosion of reinforcement begins after 15 min) is an important problem in increasing the durability of reinforced concrete products. Methods of research of reinforced concrete products show that for several technological reasons prepared for molding products form with installed and – fixed reinforcement is in the unfilled concrete state from 30 to 60 minutes and more. Steel reinforcement in the concrete, during the manufacture of which the molds were lubricated with the lubricant developed by us, is in an even more favorable (passive) state. Even after 10 min of measurements, the potential of steel, also polarized to +600 mV, did not reach its stationary value and was at the level of +90 mV values.