Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
FRPU Composite Protection of Masonry with Reversible Mineral Interlayer
https://orcid.org/http://orcid.org/0000-0002-6169-5585
https://orcid.org/http://orcid.org/0000-0002-4977-4715
https://orcid.org/http://orcid.org/0000-0002-4695-2977
https://orcid.org/http://orcid.org/0000-0002-3983-4112
The paper presents the results of preliminary tests of a newly proposed Fiber Reinforced Polyurethane (FRPU) composite system with mineral interlayer for strengthening of heritage structures in seismic areas. The analyzed FRPU system consisted of strips of an unidirectional textile of Ultra High Tensile Strength Steel (UHTSS) cords embedded in a two-component highly deformable polyurethane. In the tests a layer of composite was applied to clay bricks covered with 6 mm-thick layer of hardened mortar. In this research two types of mortars were considered: a lime-based mortar and a cement-base one. The specimens were tested in a single lap shear test (SLST). The presence of mineral interlayer resulted in reduction in shear bond strength of the composite to brick when compared to reference specimens without mortar layer. The tests results indicated that the use of mortar layer did not significantly modify shear stiffness of the connection between the FRPU strengthening system and clay brick substrate. The results of the tests shown that the tested strengthening system seems to be an effective and reversible solution for strengthening of heritage masonry structures.
FRPU Composite Protection of Masonry with Reversible Mineral Interlayer
https://orcid.org/http://orcid.org/0000-0002-6169-5585
https://orcid.org/http://orcid.org/0000-0002-4977-4715
https://orcid.org/http://orcid.org/0000-0002-4695-2977
https://orcid.org/http://orcid.org/0000-0002-3983-4112
The paper presents the results of preliminary tests of a newly proposed Fiber Reinforced Polyurethane (FRPU) composite system with mineral interlayer for strengthening of heritage structures in seismic areas. The analyzed FRPU system consisted of strips of an unidirectional textile of Ultra High Tensile Strength Steel (UHTSS) cords embedded in a two-component highly deformable polyurethane. In the tests a layer of composite was applied to clay bricks covered with 6 mm-thick layer of hardened mortar. In this research two types of mortars were considered: a lime-based mortar and a cement-base one. The specimens were tested in a single lap shear test (SLST). The presence of mineral interlayer resulted in reduction in shear bond strength of the composite to brick when compared to reference specimens without mortar layer. The tests results indicated that the use of mortar layer did not significantly modify shear stiffness of the connection between the FRPU strengthening system and clay brick substrate. The results of the tests shown that the tested strengthening system seems to be an effective and reversible solution for strengthening of heritage masonry structures.
FRPU Composite Protection of Masonry with Reversible Mineral Interlayer
https://orcid.org/http://orcid.org/0000-0002-6169-5585
https://orcid.org/http://orcid.org/0000-0002-4977-4715
https://orcid.org/http://orcid.org/0000-0002-4695-2977
https://orcid.org/http://orcid.org/0000-0002-3983-4112
The paper presents the results of preliminary tests of a newly proposed Fiber Reinforced Polyurethane (FRPU) composite system with mineral interlayer for strengthening of heritage structures in seismic areas. The analyzed FRPU system consisted of strips of an unidirectional textile of Ultra High Tensile Strength Steel (UHTSS) cords embedded in a two-component highly deformable polyurethane. In the tests a layer of composite was applied to clay bricks covered with 6 mm-thick layer of hardened mortar. In this research two types of mortars were considered: a lime-based mortar and a cement-base one. The specimens were tested in a single lap shear test (SLST). The presence of mineral interlayer resulted in reduction in shear bond strength of the composite to brick when compared to reference specimens without mortar layer. The tests results indicated that the use of mortar layer did not significantly modify shear stiffness of the connection between the FRPU strengthening system and clay brick substrate. The results of the tests shown that the tested strengthening system seems to be an effective and reversible solution for strengthening of heritage masonry structures.
FRPU Composite Protection of Masonry with Reversible Mineral Interlayer
RILEM Bookseries
Endo, Yohei (Herausgeber:in) / Hanazato, Toshikazu (Herausgeber:in) / Kwiecień, Arkadiusz (Autor:in) / Hojdys, Łukasz (Autor:in) / Krajewski, Piotr (Autor:in) / Tekieli, Marcin (Autor:in)
International Conference on Structural Analysis of Historical Constructions ; 2023 ; Kyoto, Japan
Structural Analysis of Historical Constructions ; Kapitel: 71 ; 873-883
RILEM Bookseries ; 46
02.09.2023
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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