@inproceedings{StauffacherGalanJuillandetal., author = {Stauffacher, Anina and Galan, Isabel and Juilland, Patrick and Thumann, Maria and Stenger, Christian and Baldermann, Andre and Mittermayr, Florian and Lindlar, Benedikt and Kusterle, Wolfgang}, title = {Einfluss von H{\"u}ttensand und ultrafeinem Kalksteinmehl auf die Hydratation von jungem Spritzbeton}, series = {Spritzbeton-Tagung 2018, Alpbach, Tirol, 11. und 12. Januar 2018. Tagungsbeitr{\"a}ge. CD-ROM}, booktitle = {Spritzbeton-Tagung 2018, Alpbach, Tirol, 11. und 12. Januar 2018. Tagungsbeitr{\"a}ge. CD-ROM}, editor = {Kusterle, Wolfgang}, address = {Oberperfuss}, subject = {Spritzbeton}, language = {de} } @article{SteindlMittermayrSakoparnigetal., author = {Steindl, Florian R. and Mittermayr, Florian and Sakoparnig, Marlene and Juhart, Joachim and Briendl, Lukas G. and Lindlar, Benedikt and Ukrainczyk, Neven and Dietzel, Martin and Kusterle, Wolfgang and Galan, Isabel}, title = {On the porosity of low-clinker shotcrete and accelerated pastes}, series = {Construction and Building Materials}, volume = {368}, journal = {Construction and Building Materials}, publisher = {Elsevier}, address = {14}, issn = {0950-0618}, doi = {10.1016/j.conbuildmat.2023.130461}, abstract = {Although the number and size of interconnected pores have been identified as the most important aspects of concrete microstructure, comprehensive datasets on shotcrete porosity and pore size distributions are still scarce and their key controls are poorly investigated. In this study we investigate the effects of the spraying process, setting accelerator addition and mix design on the microstructure of real-scale dry- and wet-mix shotcrete and hand-mixed and sprayed accelerated pastes. A newly proposed deconvolution analysis of the pore size distributions, measured by mercury intrusion porosimetry, offers increased precision in determining the critical and median pore diameter parameters. In total >50 samples were analysed. Results show that the dry-mix shotcrete exhibits a shift towards coarser pore sizes (∼100-1 μm) than wet-mix shotcrete. Combinations of different supplementary cementitious materials are favourable for producing wet-mix shotcretes with refined pore structures. The addition of setting accelerators, up to 10 wt-\% of binder mass, and the spraying process cause systematic variations in the pore volume and pore structure of (sprayed) paste and shotcrete.}, language = {en} } @inproceedings{ThumannJuhartRoecketal., author = {Thumann, Maria and Juhart, Joachim and R{\"o}ck, Rudolf and Saxer, Andreas and Galan, Isabel and Mittermayr, Florian and Kusterle, Wolfgang}, title = {Entwicklung neuer, dauerhafter und nachhaltiger Spritzbetone}, series = {Kolloquium Forschung \& Entwicklung f{\"u}r Zement und Beton 2018}, booktitle = {Kolloquium Forschung \& Entwicklung f{\"u}r Zement und Beton 2018}, pages = {65 -- 69}, language = {de} }