Do you know why grouting material carbonization? - Can prevent the grouting material is the price of carbide

Prevent grouting material carbide carbide grouting material prices CGM high-strength non-shrinkage grouting material is concrete grouting material of carbide carbide prevention anti carbonation grouting materials by a chemical corrosion. CO2 gas in the air penetration into concrete, and its basic substances react after form carbonates and shanxi grouting material carbonization of concrete against water, resulting in a concrete alkalinity of the grouting material and concrete which good carbide process known as concrete carbonization, also known as neutralization, the chemical reaction is: Ca ( 哦) 2+CO2=CaCO3+H2O. Generated a lot of calcium hydroxide in the hydration process of cement, protect concrete carbonation grouting material space was filled with full of calcium hydroxide solution, the alkaline medium maintenance of steel has a good effect, make the generation of refractory steel appearance Fe2O3 and Fe3O4, called passivation membrane. Carbide protect concrete carbonation after the alkalinity of the grouting material prices, when beyond the grouting material carbonization of concrete prevention maintenance carbide layer, in the presence of water and air, will lose grouting material carbonization of concrete proof of the maintenance of reinforcement effect, steel to rust. Visible, concrete carbonation effect generally does not directly cause its function degradation, for plain concrete carbonization and the effect to improve the durability of concrete, but for reinforced concrete carbonization grouting material proof, carbide can reduce the alkalinity of concrete, at the same time, increase the number of hydrogen ion in concrete pore solution, so can make the maintenance of concrete in reinforced effect weakened.