Title |
Mesocrystalline calcium silicate hydrate: A bioinspired route toward elastic concrete materials
|
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Published in |
Science Advances, November 2017
|
DOI | 10.1126/sciadv.1701216 |
Pubmed ID | |
Authors |
Andreas Picker, Luc Nicoleau, Zaklina Burghard, Joachim Bill, Igor Zlotnikov, Christophe Labbez, André Nonat, Helmut Cölfen |
Abstract |
Calcium silicate hydrate (C-S-H) is the binder in concrete, the most used synthetic material in the world. The main weakness of concrete is the lack of elasticity and poor flexural strength considerably limiting its potential, making reinforcing steel constructions necessary. Although the properties of C-S-H could be significantly improved in organic hybrids, the full potential of this approach could not be reached because of the random C-S-H nanoplatelet structure. Taking inspiration from a sea urchin spine with highly ordered nanoparticles in the biomineral mesocrystal, we report a bioinspired route toward a C-S-H mesocrystal with highly aligned C-S-H nanoplatelets interspaced with a polymeric binder. A material with a bending strength similar to nacre is obtained, outperforming all C-S-H-based materials known to date. This strategy could greatly benefit future construction processes because fracture toughness and elasticity of brittle cementitious materials can be largely enhanced on the nanoscale. |
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Geographical breakdown
Country | Count | As % |
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United States | 3 | 21% |
United Kingdom | 2 | 14% |
Belgium | 1 | 7% |
Canada | 1 | 7% |
Spain | 1 | 7% |
Switzerland | 1 | 7% |
Germany | 1 | 7% |
Unknown | 4 | 29% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 12 | 86% |
Scientists | 1 | 7% |
Science communicators (journalists, bloggers, editors) | 1 | 7% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 154 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 34 | 22% |
Researcher | 24 | 16% |
Student > Master | 13 | 8% |
Student > Bachelor | 10 | 6% |
Student > Doctoral Student | 10 | 6% |
Other | 28 | 18% |
Unknown | 35 | 23% |
Readers by discipline | Count | As % |
---|---|---|
Materials Science | 36 | 23% |
Engineering | 32 | 21% |
Chemistry | 14 | 9% |
Chemical Engineering | 6 | 4% |
Biochemistry, Genetics and Molecular Biology | 4 | 3% |
Other | 20 | 13% |
Unknown | 42 | 27% |