TA/SiO2 Hydrophobic Coating and Its Effect on Corrosion Resistance of Concrete
LAI Xiaopeng
WANG Yuanzhan
WANG Yuchi
SUN Xiping
Abstract：A new type of anticorrosive coating for concrete,glycerite(TA)/SiO2 hydrophobic coating was developed successfully based on the mussel bionic principle.Twenty-two sets of process combinations were set up to obtain the optimal preparation process for the coating in terms of the water contact angle,electric flux value and surface microstructure.The effect of the coating from the optimal preparation process on the anti-ionic penetration performance of concrete was investigated by natural diffusion test,and the stability of the coating was investigated by abrasion and acid-alkali corrosion test.The results show that the TA/SiO2 hydrophobic coating surface has rich micro and nano structures,with a water contact angle 148.1°,which can improve the ion penetration of concrete by at least 75.31%,and has excellent stability.
Keywords：hydrophobic coatingconcreteion permeationmussel bionic
Publication Date：2024-01-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 30-36 )