Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of fiber-reinforced and cement-stabilized rammed-earth composite under cyclic loading
https://orcid.org/0000-0002-9368-6691
https://orcid.org/0000-0001-5161-0739
https://orcid.org/0000-0001-8314-5966
https://orcid.org/0000-0002-3808-0670
Highlights Relevant dynamic properties were measured through harmonic cyclic tests. The influence of cyclic loading on internal fractures was assessed using CT-Scan images. WTTFs can be used to improve the cyclic properties of Rammed Earth (RE) elements. WTTF and cement combinations give the best composites for withstanding the cyclic loads.
Abstract In this paper, the cyclic behavior of Rammed Earth (RE) elements is investigated by imposing strain-controlled cyclic loads. RE samples comprise plain soil, Waste Tire Textile Fiber (WTTF)-reinforced specimens (FR), cement-stabilized specimens (CS), and simultaneously reinforced and stabilized (CSFR) specimens. Cyclic properties and responses such as maximum stress, plastic strain, dynamic elastic modulus, damage, and plastic strain energy are evaluated. Two models are also proposed and tested against the experimental data for predicting the plastic strain and damage in different loading cycles. CT-Scan images are also provided for visual inspection of fractures and crack growth. Based on the results, plain and CS samples are found to show the weakest cyclic behavior, since they experience high maximum stress reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. Extensive and continuous cracks are also detected in these specimens according to CT-Scan images. On the other hand, CSFR specimens enjoy both high strengths induced by cement stabilization and ductility imparted as a result of fiber reinforcement. CSFR specimens with high fiber contents undergo relatively low maximum strength reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. FR specimens are also found to display relatively decent cyclic behavior. As a result, it is deduced that among the tested soil mixtures, CSFR specimens (with a WTTF content higher than 2%) have the most suitable performance under cyclic loadings.
Evaluation of fiber-reinforced and cement-stabilized rammed-earth composite under cyclic loading
https://orcid.org/0000-0002-9368-6691
https://orcid.org/0000-0001-5161-0739
https://orcid.org/0000-0001-8314-5966
https://orcid.org/0000-0002-3808-0670
Highlights Relevant dynamic properties were measured through harmonic cyclic tests. The influence of cyclic loading on internal fractures was assessed using CT-Scan images. WTTFs can be used to improve the cyclic properties of Rammed Earth (RE) elements. WTTF and cement combinations give the best composites for withstanding the cyclic loads.
Abstract In this paper, the cyclic behavior of Rammed Earth (RE) elements is investigated by imposing strain-controlled cyclic loads. RE samples comprise plain soil, Waste Tire Textile Fiber (WTTF)-reinforced specimens (FR), cement-stabilized specimens (CS), and simultaneously reinforced and stabilized (CSFR) specimens. Cyclic properties and responses such as maximum stress, plastic strain, dynamic elastic modulus, damage, and plastic strain energy are evaluated. Two models are also proposed and tested against the experimental data for predicting the plastic strain and damage in different loading cycles. CT-Scan images are also provided for visual inspection of fractures and crack growth. Based on the results, plain and CS samples are found to show the weakest cyclic behavior, since they experience high maximum stress reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. Extensive and continuous cracks are also detected in these specimens according to CT-Scan images. On the other hand, CSFR specimens enjoy both high strengths induced by cement stabilization and ductility imparted as a result of fiber reinforcement. CSFR specimens with high fiber contents undergo relatively low maximum strength reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. FR specimens are also found to display relatively decent cyclic behavior. As a result, it is deduced that among the tested soil mixtures, CSFR specimens (with a WTTF content higher than 2%) have the most suitable performance under cyclic loadings.
Evaluation of fiber-reinforced and cement-stabilized rammed-earth composite under cyclic loading
https://orcid.org/0000-0002-9368-6691
https://orcid.org/0000-0001-5161-0739
https://orcid.org/0000-0001-8314-5966
https://orcid.org/0000-0002-3808-0670
Highlights Relevant dynamic properties were measured through harmonic cyclic tests. The influence of cyclic loading on internal fractures was assessed using CT-Scan images. WTTFs can be used to improve the cyclic properties of Rammed Earth (RE) elements. WTTF and cement combinations give the best composites for withstanding the cyclic loads.
Abstract In this paper, the cyclic behavior of Rammed Earth (RE) elements is investigated by imposing strain-controlled cyclic loads. RE samples comprise plain soil, Waste Tire Textile Fiber (WTTF)-reinforced specimens (FR), cement-stabilized specimens (CS), and simultaneously reinforced and stabilized (CSFR) specimens. Cyclic properties and responses such as maximum stress, plastic strain, dynamic elastic modulus, damage, and plastic strain energy are evaluated. Two models are also proposed and tested against the experimental data for predicting the plastic strain and damage in different loading cycles. CT-Scan images are also provided for visual inspection of fractures and crack growth. Based on the results, plain and CS samples are found to show the weakest cyclic behavior, since they experience high maximum stress reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. Extensive and continuous cracks are also detected in these specimens according to CT-Scan images. On the other hand, CSFR specimens enjoy both high strengths induced by cement stabilization and ductility imparted as a result of fiber reinforcement. CSFR specimens with high fiber contents undergo relatively low maximum strength reduction, dynamic elastic modulus deterioration, damage, and plastic strain energy. FR specimens are also found to display relatively decent cyclic behavior. As a result, it is deduced that among the tested soil mixtures, CSFR specimens (with a WTTF content higher than 2%) have the most suitable performance under cyclic loadings.
Evaluation of fiber-reinforced and cement-stabilized rammed-earth composite under cyclic loading
Narani, Shayan Sheikhi (Autor:in) / Zare, Pouria (Autor:in) / Abbaspour, Mohsen (Autor:in) / Fahimifar, Ahmad (Autor:in) / Siddiqua, Sumi (Autor:in) / Mir Mohammad Hosseini, Seyed Majdeddin (Autor:in)
23.05.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Behavior of cement-stabilized rammed earth circular column under axial loading
| Online Contents | 2014
Behavior of cement-stabilized rammed earth circular column under axial loading
| Springer Verlag | 2014
Behavior of cement-stabilized rammed earth circular column under axial loading
| Online Contents | 2016
Behavior of cement-stabilized rammed earth circular column under axial loading
| British Library Online Contents | 2016