Test device and test method for simulating steel bar corrosion in different environments

Abstract

The invention discloses a test device and a test method for simulating steel bar corrosion in different environments, the test device comprises a sealing box, a plurality of electrolytic tanks with simulation liquid are arranged in the sealing box, and working electrode-steel bar samples are placed in the electrolytic tanks; a reference electrode and an auxiliary electrode are arranged above the electrolytic tanks, and the reference electrode and the auxiliary electrode are controlled to enter different electrolytic tanks when the steel bar corrosion process is regularly measured; and the voltage-stabilizing galvanostat and the electrochemical test computer acquisition equipment are connected outside the electrolytic tank and are used for monitoring the time-varying rule of steel bar corrosion in different periods. According to the invention, the problems of large test result difference, poor repeatability and the like caused by complexity and instability of current sample storage environment conditions are solved; the key factors of steel bar corrosion are accurately mastered by controlling external condition variables, and meanwhile, the influence degrees of different factors on the steel bar corrosion process are selectively controlled according to the required test conditions.

Description

technical field [0001] The invention relates to a corrosion monitoring technology for simulating steel bars under targeted environmental conditions, in particular to a test device and a test method for simulating steel bar corrosion in different environments. Background technique [0002] Due to its good mechanical properties and workability, steel bars have become the most extensive and important engineering materials in the chemical industry, petrochemical industry, transportation and other fields, and their main components are metal elements or alloys. However, corrosion of steel bars is the most important and direct cause of failure of large-scale building structures, civil infrastructure, transportation equipment, and instruments. The resulting annual losses far exceed the comprehensive economic losses such as floods and fires. According to a survey in the United States, the cost of corrosion in the United States is 6 cents per dollar of GDP. Globally, this equates to...

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Problems solved by technology

In addition, due to the large fluctuation and poor stability of the external natural environmental conditions, the obtained test results are poorly repeatable and the key factors affecting

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