Sustainable and efficient cork - inorganic polymer composites: An innovative and eco-friendly approach to produce ultra-lightweight and low thermal conductivity materials
authors Novais, RM; Senff, L; Carvalheiras, J; Seabra, MP; Pullar, RC; Labrincha, JA
nationality International
journal CEMENT & CONCRETE COMPOSITES
author keywords Inorganic polymer; Thermal conductivity; Lightweight aggregate; Cork; Composite
keywords BIOMASS FLY-ASH; CARBON FOOTPRINT; FOAM CONCRETE; GEOPOLYMER; WASTE; BEHAVIOR; MORTARS; PERFORMANCE; RESISTANCE; STRENGTH
abstract In this investigation cork was used as a low density aggregate in the production of ultra-lightweight and low thermal conductivity inorganic polymer (geopolymer) composites. This novel and highly sustainable material, synthesised at room temperature (23 degrees C), may decrease the energy losses inside buildings, thus contributing to the United Nations development goals regarding energy and climate change. The ultra-low density (260 kg/m(3)) and low thermal conductivity (72 mW/m K) shown by the cork-composites are the second lowest ever reported for inorganic polymer composites, only being surpassed by that of polystyrene-inorganic polymer composites. However, cork is a fully renewable and sustainable resource, while polystyrene is manufactured from non-renewable fossil fuels, and for that reason our strategy has an additional sustainability advantage. Moreover, the cork-inorganic polymer composites do not release any toxic fume when under fire conditions, which is a major advantage over polymeric-based foams.
publisher ELSEVIER SCI LTD
issn 0958-9465
year published 2019
volume 97
beginning page 107
ending page 117
digital object identifier (doi) 10.1016/j.cemconcomp.2018.12.024
web of science category Construction & Building Technology; Materials Science, Composites
subject category Construction & Building Technology; Materials Science
unique article identifier WOS:000459358700010
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journal analysis (jcr 2017):
journal impact factor 4.660
5 year journal impact factor 5.515
category normalized journal impact factor percentile 93.176
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