Concrete properties for long-span post-tensioned slabs / Rafał Szydłowski // W: International Symposium on Advanced Material Research II [Dokument elektroniczny] / ed. by Dong Keon Kim, Jongwon Jung, ... więcej

Concrete properties for long-span post-tensioned slabs / Rafał Szydłowski // W: International Symposium on Advanced Material Research II [Dokument elektroniczny] / ed. by Dong Keon Kim, Jongwon Jung, Wonjun Park. – Switzeralnd : Trans Tech Publications Inc., 2018. – (Materials Science Forum, ISSN 1662-9752 ; 926). – S. 122-127 : il. – Tryb dostępu: https://www.scientific.net/MSF.926.122. – Bibliogr. 6 poz., Abstr. – Mat. konf.: 2nd ISAMR 2018, Jeju Island, South Korea, 16-18.03.2018. – doi: 10.4028/www.scientific.net/MSF.926.122. – ISBN 978-3-0357-1322-0

In contrast to foreign practice, in Poland, for many years, there has been a belief, that in prestressed constructions, more expensive concretes on basalt aggregates should be applied. This habit is due ... więcej

In contrast to foreign practice, in Poland, for many years, there has been a belief, that in prestressed constructions, more expensive concretes on basalt aggregates should be applied. This habit is due to the low quality of national river and fossil aggregates. They allow to obtain low concrete strength and modulus of elasticity. In the paper, basing on two examples of post-tensioned slabs, it has been shown, that it is possible to use concretes with a low value of modulus of elasticity for large-span slabs. These results may be significant in popularizing the use of post-tensioned slabs in buildings in poorer countries, making them cheaper in execution.