Multi-scale study of high-strength low-thermal-conductivity cement composites containing cenospheres

verfasst von
Vanessa Rheinheimer, Yunpeng Wu, Tao Wu, Kemal Celik, Junyan Wang, Laura De Lorenzis, Peter Wriggers, Min Hong Zhang, Paulo J.M. Monteiro
Abstract

Cenosphere particles are hollow, but due to their hard shells, they can be used in cementitious composites to produce ultra-lightweight cement composites (ULCC) with high strength and low thermal conductivity. This study integrates thermal conductivity with mechanical experimental research, microscopic investigation, and numerical simulations to provide new insights into the behavior of these advanced composites. The microstructure of ULCC samples was characterized using synchrotron high-resolution microtomography, transmission electron microscopy and scanning electron microscopy. Composite models were used to predict the thermal conductivity of the cenospheres based on the experimental results of ULCC thermal conductivity and the porosity of the samples.

Organisationseinheit(en)
Institut für Kontinuumsmechanik
Externe Organisation(en)
Berkeley Education Alliance for Research in Singapore
National University of Singapore
Technische Universität Braunschweig
University of California at Berkeley
Tongji University
Typ
Artikel
Journal
Cement and Concrete Composites
Band
80
Seiten
91-103
Anzahl der Seiten
13
ISSN
0958-9465
Publikationsdatum
14.03.2017
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Bauwesen, Allgemeine Materialwissenschaften
Elektronische Version(en)
https://doi.org/10.1016/j.cemconcomp.2017.03.002 (Zugang: Geschlossen)
 

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