土木工程化学基础（Fundamentals of Civil Engineering Chemistry）.docVIP

土木工程化学基础（Fundamentals of Civil Engineering Chemistry） Analysis of the application of university chemistry in Civil Engineering Protection of oxygen concentration and electrochemical corrosion in the process of bridge construction Author: Wang Xicai professional class: Mao Yisheng bridge class 0801 Instructor: Ma Yu Recommendation reason: the thesis combines the chemistry knowledge with the corrosion, corrosion prevention and bridge durability in the major, It highlights the significance of the basic knowledge of Chemistry for solving the engineering quality problems, and expands the space for future technological innovation Its worth recommending. University Chemistry, as a compulsory basic course in our civil engineering, plays an important role. Now I follow the rules The basic principles of chemical reaction are discussed in detail on the harm and protection of electrochemical corrosion and oxygen concentration corrosion in the field of bridge engineering, Deepen the understanding of chemical knowledge, and improve the ability to analyze and solve problems. As a hub of transportation, bridges are playing a more and more important role. But the climate conditions are extremely bad in our country, Bridges generally vary (corrosion is quite serious), and bridge durability must be guaranteed for Bridges Corrosion protection. I. principle and condition of oxygen concentration and electrochemical corrosion 1. electrochemical corrosion: corrosion of metals when they are in contact with electrolyte solutions. Electrochemical decay Corrosion is more harmful than chemical corrosion, with greater coverage, corrosion of metals in the atmosphere, corrosion in soil and sea water, and Electrolyte corrosion is electrochemical corrosion. When the reinforcement is exposed to moist air, the steel is adsorbed because of the surface adsorption The surface of the tendon is covered with a layer of water film which dissolves the SO2 and CO2 gases in the air. These gases dissolve in wate