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JK-H₂O(A) composite amino alcohol steel rust inhibitor is adsorbed to the surface of the steel bar in an ionic or gaseous state. Because the electric field of the steel bar is very strong, these rust inhibitor molecules are adsorbed toward the steel bar. The steel bars react to form a chemical film similar to rust, but this chemical film is quite passivated and will not dissolve in water and lose as easily as rust. The surface free enthalpy is reduced, that is, the surface tension of the solution is reduced, so that the concrete mixture produces many tiny closed bubbles during the mixing process. The bubble diameter and spacing coefficient are mostly below 200μm, thereby improving the water retention capacity of the cement and making the concrete mix The bleeding performance of the compound is greatly reduced.