One-layer mechanical fastening waterproofing systems are often used within the compositions of flat roofs. Although in case of plastic based systems it is a common solution, for asphalt felts it handles about a relatively new approach, since the application of asphalt has a long history in the building industry. There are some key factors which all of the one-layer mechanically fastening systems should meet, especially water-resistance and resistance against the suction of wind. The application of dynamic loads on the joints may damage the bonds, which may lead to leakage of water. In particular the most delicate locations are the anchoring points at places where the waterproofing sheets are not connected mutually and the wind is captured. The characteristics of mechanically fastening waterproofing membranes may be verified by a specific test which is able to simulate the winds suction force, nonetheless it is quite expensive. Throughout the solution of the presented work an equipment was designed to observe the behaviour of roof compositions on smaller segments while taking into account the fastening elements, thus bringing the results closer to reality. In the first phase the presented dissertation aims to look at the possibilities of comparison of mechanically fastening bitumen reinforced sheets in a way, that they would show the extent to which the joints depend on the parameters of bitumen sheet - like the quality of the bitumen mass, the type bearing linen, the thickness of the layer or just the width of strip overlap. In the next phase the research was focused on the extent at which the strength of the resulting mechanically fastened joints is affected by the placement of fastenings elements within the strip overlap, including the possibilities when the distances from the edges of the bitumen strip cannot be maintained or because of improper geometry of fastening elements. The measurements were performed on both variants of flat roofs, thermally insulated
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:233827 |
| Creators | Petříček, Tomáš |
| Contributors | Novotný,, Marek, Plachý, Jan, Oláh,, Jozef, Šuhajda, Karel |
| Publisher | Vysoké učení technické v Brně. Fakulta stavební |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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