A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-performance timber-concrete-composites with polymer concrete and beech wood
https://orcid.org/0000-0001-8348-2540
https://orcid.org/0000-0001-7832-8880
Highlights Polymer-concretes adhere strongly to beech wood. Polymer-concretes and beech wood composite structures show high strengths. Epoxy-based polymer-concrete bonded to beech showed good moisture stability. Digital-image-correlation (DIC) revealed the effect of moisture on the composite.
Abstract The performance of adhesive-bonded timber-concrete-composites (TCC) can be enhanced by using beech wood and polymer concrete (PC). In this work, two different PCs with an epoxy- and a polyurethane (PUR)-based matrix were investigated for application in TCCs. The mechanical performances were tested in dry and wet state by small-scale shear tests and flexural tests. Epoxy-PC showed high bond strength to beech with a shear strength of 16.7 ± 3.0 MPa compared to 3.2 ± 1.7 MPa observed with PUR-PC. Characterization of the swelling strain with digital image correlation (DIC) showed superior water stability of the epoxy-PC compared to PUR-PC. The results indicate that PCs, especially epoxy-PC, could be viable replacements for cement-based concrete in TCCs.
High-performance timber-concrete-composites with polymer concrete and beech wood
https://orcid.org/0000-0001-8348-2540
https://orcid.org/0000-0001-7832-8880
Highlights Polymer-concretes adhere strongly to beech wood. Polymer-concretes and beech wood composite structures show high strengths. Epoxy-based polymer-concrete bonded to beech showed good moisture stability. Digital-image-correlation (DIC) revealed the effect of moisture on the composite.
Abstract The performance of adhesive-bonded timber-concrete-composites (TCC) can be enhanced by using beech wood and polymer concrete (PC). In this work, two different PCs with an epoxy- and a polyurethane (PUR)-based matrix were investigated for application in TCCs. The mechanical performances were tested in dry and wet state by small-scale shear tests and flexural tests. Epoxy-PC showed high bond strength to beech with a shear strength of 16.7 ± 3.0 MPa compared to 3.2 ± 1.7 MPa observed with PUR-PC. Characterization of the swelling strain with digital image correlation (DIC) showed superior water stability of the epoxy-PC compared to PUR-PC. The results indicate that PCs, especially epoxy-PC, could be viable replacements for cement-based concrete in TCCs.
High-performance timber-concrete-composites with polymer concrete and beech wood
https://orcid.org/0000-0001-8348-2540
https://orcid.org/0000-0001-7832-8880
Highlights Polymer-concretes adhere strongly to beech wood. Polymer-concretes and beech wood composite structures show high strengths. Epoxy-based polymer-concrete bonded to beech showed good moisture stability. Digital-image-correlation (DIC) revealed the effect of moisture on the composite.
Abstract The performance of adhesive-bonded timber-concrete-composites (TCC) can be enhanced by using beech wood and polymer concrete (PC). In this work, two different PCs with an epoxy- and a polyurethane (PUR)-based matrix were investigated for application in TCCs. The mechanical performances were tested in dry and wet state by small-scale shear tests and flexural tests. Epoxy-PC showed high bond strength to beech with a shear strength of 16.7 ± 3.0 MPa compared to 3.2 ± 1.7 MPa observed with PUR-PC. Characterization of the swelling strain with digital image correlation (DIC) showed superior water stability of the epoxy-PC compared to PUR-PC. The results indicate that PCs, especially epoxy-PC, could be viable replacements for cement-based concrete in TCCs.
High-performance timber-concrete-composites with polymer concrete and beech wood
Stucki, Sandro (author) / Kelch, Steffen (author) / Mamie, Tim (author) / Burckhardt, Urs (author) / Grönquist, Philippe (author) / Elsener, Roman (author) / Schubert, Mark (author) / Frangi, Andrea (author) / Burgert, Ingo (author)
2023-11-02
Article (Journal)
Electronic Resource
English
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