Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Durability parameters of reinforced recycled aggregate concrete: Case study
Recycled concrete aggregate (RA) from pavement demolition was used to make concrete. Ten concrete mixtures with different replacement percentages of RA (coarse and fine) were made. The corrosion rate of steel and the electrical resistivity of concrete were determined on reinforced concrete specimens subjected to wetting-drying cycles (3.5% solution of NaCl). Corrosion rate was determined using the electrochemical technique of linear polarization resistance, while the electrical resistivity was measured by electrochemical impedance spectroscopy. The results show that the use of RA introduces more interfaces in concrete, which accelerates the steel corrosion process because the porosity increases and the electrical resistivity decreases. However, steel corrosion and the electrical resistivity in concrete are not significantly influenced by replacing a maximum 30% of coarse aggregate or 20% of fine aggregate with RA. ; Peer Reviewed ; Preprint
Durability parameters of reinforced recycled aggregate concrete: Case study
Recycled concrete aggregate (RA) from pavement demolition was used to make concrete. Ten concrete mixtures with different replacement percentages of RA (coarse and fine) were made. The corrosion rate of steel and the electrical resistivity of concrete were determined on reinforced concrete specimens subjected to wetting-drying cycles (3.5% solution of NaCl). Corrosion rate was determined using the electrochemical technique of linear polarization resistance, while the electrical resistivity was measured by electrochemical impedance spectroscopy. The results show that the use of RA introduces more interfaces in concrete, which accelerates the steel corrosion process because the porosity increases and the electrical resistivity decreases. However, steel corrosion and the electrical resistivity in concrete are not significantly influenced by replacing a maximum 30% of coarse aggregate or 20% of fine aggregate with RA. ; Peer Reviewed ; Preprint
Durability parameters of reinforced recycled aggregate concrete: Case study
Arredondo Rea, Susana Paola (Autor:in) / Corral Higuera, Ramón (Autor:in) / Gómez Soberón, José Manuel Vicente (Autor:in) / Gámez García, Diana C. (Autor:in) / Bernal Camacho, J.M. (Autor:in) / Rosas Casarez,, Carlos Antonio (Autor:in) / Ungsson Nieblas, Manuel de Jesús (Autor:in) / Universitat Politècnica de Catalunya. Departament de Tecnologia de l'Arquitectura / Universitat Politècnica de Catalunya. GICITED - Grup Interdiciplinari de Ciència i Tecnologia en l'Edificació
13.02.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
Durability of recycled aggregate concrete
| Online Contents | 2013
Durability of Recycled Aggregate Concrete
| British Library Conference Proceedings | 2000
Durability of recycled aggregate concrete
| British Library Online Contents | 2013
Durability Performance of Recycled Aggregate Concrete
| British Library Conference Proceedings | 2005