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

authored by: 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.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Berkeley Education Alliance for Research in Singapore
National University of Singapore
Technische Universität Braunschweig
University of California at Berkeley
Tongji University
Type: Article
Journal: Cement and Concrete Composites
Volume: 80
Pages: 91-103
No. of pages: 13
ISSN: 0958-9465
Publication date: 14.03.2017
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Building and Construction, General Materials Science
Electronic version(s): https://doi.org/10.1016/j.cemconcomp.2017.03.002 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{247a7bf063b34c21839ebbfced7b733b,
title = "Multi-scale study of high-strength low-thermal-conductivity cement composites containing cenospheres",
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.",
keywords = "Cement composites, Cenospheres, Multiscale, Thermal conductivity",
author = "Vanessa Rheinheimer and Yunpeng Wu and Tao Wu and Kemal Celik and Junyan Wang and {De Lorenzis}, Laura and Peter Wriggers and Zhang, {Min Hong} and Monteiro, {Paulo J.M.}",
year = "2017",
month = mar,
day = "14",
doi = "10.1016/j.cemconcomp.2017.03.002",
language = "English",
volume = "80",
pages = "91--103",
journal = "Cement and Concrete Composites",
issn = "0958-9465",
publisher = "Elsevier Ltd.",
}