【摘 要】
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Self-healing microcapsule technology based on bionics principle can realize the localization and instant repair of the micro damage in the cement-based mate
【机 构】
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Department, Beijing University of Technology, Beijing 100124, China
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
Self-healing microcapsule technology based on bionics principle can realize the localization and instant repair of the micro damage in the cement-based materials microstructure, which is of great significance on improving the durability of cement-based materials and reducing maintenance cost.Urea formaldehyde/epoxy resin microcapsule prepared by in situ polymerization method has the characteristics of loose surface and the spherical or ellipsoidal shape.Cement specimens prepared with the content of microcapsules 0%, 1%, 2%, 3% and 5% were observed via Optical Microscope and Scanning Electron Microscopy (SEM), which can prove the self-repairing (self-healing) effect.Results show the content of microcapsules has a certain influence on the uniform and the compressive strength of cement-based materials, and when the dosage of microcapsules is 3% the application effect is the best.
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