Addressing Infrastructure Durability and Sustainability by Self Healing Mechanisms - Recent Advances in Self Healing Concrete and Asphalt

By Erik Schlangen, S. Sangadji. 2013

145 citations recorded by the source corpus.

Infrastructures cover a very broad spectrum of different materials. This paper focuses on civil engineering structures, concrete and asphalt in particular. The public demand for such infrastructures is high level of service and performance, high durability and minimum negative ecological impact. New emerging self healing materials science provides solutions to the problem. An overview is given of new developments obtained in research on self healing of cracks in cement based materials and asphalt concrete. At Delft University various projects are running to study self healing mechanisms. The first project that is discussed is Bacterial Concrete, in which bacteria are mixed in concrete, that can precipitate calcite in a crack and with that make concrete structures water tight and enhance durability. In a second project hybrid fibre reinforced cementitious materials are studied that can mechanically repair cracks when they occur. The last project described in this paper is on the ravelling of porous asphalt concrete and how to heal this damage by incorporating embedded microcapsules or steel fibres. The state of the art results in all projects show that self healing is not just a miracle, but materials can be designed for it.

Subfields: Civil and Structural Engineering, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/81afc27f2178de7e0f239292c9dc5a1e4642918f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Civil and Structural Engineering

In Environmental Engineering

Citations in the corpus

Tests and methods of evaluating the self-healing efficiency of concrete: A review (2016, background): “Furthermore, calcium carbonate precipitating microorganism were found to induce self-healing in concrete [61,63].”
Smart concretes and structures: A review (2015, background): “They performed a test track of self-healing property in 400m of the A58 near Vlissingen and observed that if the road maintenance runs the induction machine over the road every 4 years, the road surface will last twice as long or possibly longer (Schlangen and Sangadji, 2013).”