Journal article
A self-healing cementitious composite using oil core/silica gel shell microcapsules
Cement & concrete composites, Vol.33(4), pp.506-512
2011
Handle:
https://hdl.handle.net/2376/120391
Abstract
This paper presents work toward the development of a new family of self-healing materials that hold promise for “crack-free” concrete or other cementitious composites. This innovative system features the design of microcapsules with oil core and silica gel shell. Methylmethacrylate monomer and triethylborane were selected as the healing agent and the catalyst, i.e. oil core phases in the system. They were microencapsulated, respectively, through an interfacial self-assembly process and sol–gel reaction. Then the microcapsules were dispersed in fresh cement mortar along with carbon microfibers. The self-healing effect was evaluated using permeability measurements along with a fatigue test under uniaxial compression cyclic loading and further confirmed by surface analytical tools including optical microscope and field emission scanning electron microscope coupled with energy-dispersive X-ray analyzer (FESEM/EDX).
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Details
- Title
- A self-healing cementitious composite using oil core/silica gel shell microcapsules
- Creators
- Zhengxian Yang - Corrosion and Sustainable Infrastructure Laboratory, Western Transportation Institute, PO Box 174250, College of Engineering, Montana State University, Bozeman, MT 59717-4250, USAJohn Hollar - Corrosion and Sustainable Infrastructure Laboratory, Western Transportation Institute, PO Box 174250, College of Engineering, Montana State University, Bozeman, MT 59717-4250, USAXiaodong He - Corrosion and Sustainable Infrastructure Laboratory, Western Transportation Institute, PO Box 174250, College of Engineering, Montana State University, Bozeman, MT 59717-4250, USAXianming Shi - Corrosion and Sustainable Infrastructure Laboratory, Western Transportation Institute, PO Box 174250, College of Engineering, Montana State University, Bozeman, MT 59717-4250, USA
- Publication Details
- Cement & concrete composites, Vol.33(4), pp.506-512
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900612058001842
- Language
- English
- Resource Type
- Journal article