The author expresses his thanks to dr hab. Inż. Adam Glema, prof. Of Poznan University of Technology, for his supervision, advice and huge support. Many thanks are also directed to dr inż. Janusz Dębiński, for his general advice and comments that he shared with me during this research.
From October 2011 to September 2015, financial support was provided from Ruukki Construction OY within scientific grant 11-962/2011-14. From October 2016 to September 2017, the research was financially supported by the National Science Centre of Poland under the Etiuda-4 project.
The experimental work was sponsored entirely by the Building Research Institute of Poland, with the support of dr inż. Paweł Sulik and dr inż. Wojciech Węgrzyński. This support is gratefully acknowledged.
