What is it about?
The safe service of concrete structures is very important. The coating can provide both protection and long-term health monitoring of existing facilities. However, as a cement-based monitoring coating, conductivity, cost, operability and other challenges exist. Through a series of molecular modifications, we prepared the originally expensive components with cheap industrial-grade products, realizing the industrial production and wide application of coatings.
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Why is it important?
We found that the muscle-like IPN increases the cement-based coatings’ maximum deflection angle to 30° and improves the monitoring accuracy of compressive, tensile and fatigue micro-changes of concrete structures to more than 95%. The POSS···Ca2+···C-S-H interaction in C-POSS partially transferred the intra-adhesive hydrogen bonds surrounding the nano-conductor into electrostatic bridging ones to maintain an excellent electromechanical conductive dispersion.
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This page is a summary of: Ultraductile Cementitious Structural Health Monitoring Coating: Waterborne Polymer Biomimetic Muscle and Polyhedral Oligomeric Silsesquioxane‐Assisted C‐S‐H Dispersion, Advanced Functional Materials, October 2022, Wiley, DOI: 10.1002/adfm.202208676.
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