This is the accepted manuscript version of the article Mechanical properties of lightweight aggregates. Bernhardt, M., Tellesbø, H., Justnes, H., & Wiik, K. Citation for the published version (APA 6th) Bernhardt, M., Tellesbø, H., Justnes, H., & Wiik, K. (2013). Mechanical properties of lightweight aggregates. Journal of the European Ceramic Society, 33(13), 2731-2743. doi:https://doi.org/10.1016/j.jeurceramsoc.2013.05.013 This is accepted manuscript version. It may contain differences from the journal's pdf version. This file was downloaded from SINTEFs Open Archive, the institutional repository at SINTEF http://brage.bibsys.no/sintef