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Title: Laboratory Assessment of a Self-Healing Cementitious Composite
Accession Number: 01157607
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: This paper presents work in the laboratory assessment 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 passive smart microcapsules (PSMs) with oil core and silica gel shell, prepared through an interfacial self-assembly process and sol–gel reaction. Methylmethacrylate monomer and triethylborane were chosen as the healing agent and the catalyst for use in the system and were microencapsulated. The microcapsules were subsequently dispersed in fresh cement mortar along with carbon microfibers. The morphology of the microcapsules was examined by using a field emission scanning electron microscope. Mechanical tests and electrochemical impedance spectroscopy measurements were carried out to evaluate the self-healing effect of PSMs and the possible physicochemical changes or interactions in the carbon microfiber–reinforced mortar matrix.
Monograph Title: Monograph Accession #: 01157601
Report/Paper Numbers: NANO10-0030
Language: English
Authors: Yang, ZhengxianHollar, JohnHe, XiaodongShi, XianmingPagination: pp 9-17
Publication Date: 2010
ISBN: 9780309142779
Media Type: Print
Features: Figures
(9)
; References
(18)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Subject Areas: Materials; I32: Concrete
Files: TRIS, TRB, ATRI
Created Date: May 26 2010 2:00PM
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