University of Cambridge > > Engineering Department Geotechnical Research Seminars > Self-healing blended cement grouts with micro encapsulated healing agents

Self-healing blended cement grouts with micro encapsulated healing agents

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If you have a question about this talk, please contact Anama Lowday.

Traditionally, cementitious blends have been employed in engineering applications either as remedial works or part of the permanent infrastructure. Although the design has a built-in redundancy for structural safety under a variety of adverse events, over the long-term, repair and eventual replacement has been inevitable. A solution has been proposed in recent years through the development of a new breed of “smart” cement. This material has the ability to respond to damage and recover functionality; namely heal itself.

Aim of this research was to introduce this self-healing design approach to traditional blended cement suspensions, assess their self-actuating recovery potential and further enhance it through the addition of repairing agents. To achieve the latter, micron-sized polymeric capsules were developed and characterised. These microscopic capsules were designed to deliver repair agents that target known areas of stress build-up inside the composite matrix. The proposed composite system was evaluated and the self-healing concept confirmed.

This talk is part of the Engineering Department Geotechnical Research Seminars series.

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