Polymer-Silicate Composite Gel Systems for Enhanced Chloride Resistance of Cement-Based Materials.

ABSTRACT: To address the issues of insufficient protection and poor durability in concrete during service, this study developed a novel polymer-silicate composite gel system by combining silane with fluorocarbon resin emulsion and applied it to mortar specimens. The chloride ion resistance enhancement of mortar provided by the novel gel system was evaluated using the RCM method and natural chloride ion penetration tests, with SEM images employed to analyze its anti-permeation mechanism. Results indicate that the chloride ion migration coefficient of the novel composite gel system is 4.91 × 10^-12 m²/s, representing a 63.97% reduction compared to the single fluorocarbon gel system. Within the 0-5 mm depth range, free chloride ion contents at 14, 28, and 56 days decreased by 55.35

SUBMITTER: Zhang T 

PROVIDER: S-EPMC12732367 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature