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- W2296688327 abstract "To date, the potential of several types of polymeric materials as healing agents for self-healing of concrete has already been investigated. Generally, for self-healing concrete with encapsulated polymeric healing agents, the curing mechanism is triggered upon contact with moisture/air or upon reaction with a second component provided by additional capsules. The present work explores the use of in-situ curable hydrogels formed as a result of the elevated pH of the cementitious matrix, via a Michael-type addition reaction, as potential healing/sealing materials for concrete applications. For this purpose, a variety of acrylate-endcapped urethane-based precursors were synthesized and combined with a thiol-based cross-linker. Various properties including the viscosity, the curing time, the swelling capacity and the cross-linking efficiency have been evaluated. The potential of the developed materials to seal concrete cracks was assessed through manual injection. The results indicate that the cross-linking reaction can readily occur in-situ due to the alkaline environment of the cementitious matrix and that the hydrogels exhibit favorable sealing properties." @default.
- W2296688327 created "2016-06-24" @default.
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- W2296688327 date "2016-05-01" @default.
- W2296688327 modified "2023-09-25" @default.
- W2296688327 title "Cross-linkable polyethers as healing/sealing agents for self-healing of cementitious materials" @default.
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- W2296688327 doi "https://doi.org/10.1016/j.matdes.2016.03.005" @default.
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