Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Some Properties of Fiber-Reinforced Road Concrete Using Iron Ore Dressing Wastes
https://orcid.org/http://orcid.org/0000-0002-8292-9504
https://orcid.org/http://orcid.org/0000-0002-1595-7740
https://orcid.org/http://orcid.org/0000-0002-3397-9206
https://orcid.org/http://orcid.org/0000-0002-2573-8402
The results of studies of fine-grained road fiber-reinforced concrete using iron ore dressing wastes as fillers at the Poltava mining and processing plant are presented. Ore dressing wastes are crushed rocks of the quartzite group, which are not worse in strength than granites. The waste has a rocky torn surface, which contributes to good adhesion to the cement stone. The uniformity of the of polypropylene fibers distribution in the volume of the concrete mixture was assessed by the change in the degree of separation. The dependences of homogeneity of a concrete mixture with different amounts and volumetric concentration and length of polypropylene fibers on the duration of mixing have been obtained. The graphs were built and the optimal duration of mixing the concrete mixture was determined.
The influence of polypropylene fibers on the strength of concrete of different grades has been investigated. The research results indicate that polypropylene fibers do not have an adhesive bond with cement stone and, therefore, cannot significantly increase the strength of concrete in comparison with steel fibers. However, polypropylene fibers can have a positive effect on the crack resistance and dynamic strength of road concretes.
Some Properties of Fiber-Reinforced Road Concrete Using Iron Ore Dressing Wastes
https://orcid.org/http://orcid.org/0000-0002-8292-9504
https://orcid.org/http://orcid.org/0000-0002-1595-7740
https://orcid.org/http://orcid.org/0000-0002-3397-9206
https://orcid.org/http://orcid.org/0000-0002-2573-8402
The results of studies of fine-grained road fiber-reinforced concrete using iron ore dressing wastes as fillers at the Poltava mining and processing plant are presented. Ore dressing wastes are crushed rocks of the quartzite group, which are not worse in strength than granites. The waste has a rocky torn surface, which contributes to good adhesion to the cement stone. The uniformity of the of polypropylene fibers distribution in the volume of the concrete mixture was assessed by the change in the degree of separation. The dependences of homogeneity of a concrete mixture with different amounts and volumetric concentration and length of polypropylene fibers on the duration of mixing have been obtained. The graphs were built and the optimal duration of mixing the concrete mixture was determined.
The influence of polypropylene fibers on the strength of concrete of different grades has been investigated. The research results indicate that polypropylene fibers do not have an adhesive bond with cement stone and, therefore, cannot significantly increase the strength of concrete in comparison with steel fibers. However, polypropylene fibers can have a positive effect on the crack resistance and dynamic strength of road concretes.
Some Properties of Fiber-Reinforced Road Concrete Using Iron Ore Dressing Wastes
https://orcid.org/http://orcid.org/0000-0002-8292-9504
https://orcid.org/http://orcid.org/0000-0002-1595-7740
https://orcid.org/http://orcid.org/0000-0002-3397-9206
https://orcid.org/http://orcid.org/0000-0002-2573-8402
The results of studies of fine-grained road fiber-reinforced concrete using iron ore dressing wastes as fillers at the Poltava mining and processing plant are presented. Ore dressing wastes are crushed rocks of the quartzite group, which are not worse in strength than granites. The waste has a rocky torn surface, which contributes to good adhesion to the cement stone. The uniformity of the of polypropylene fibers distribution in the volume of the concrete mixture was assessed by the change in the degree of separation. The dependences of homogeneity of a concrete mixture with different amounts and volumetric concentration and length of polypropylene fibers on the duration of mixing have been obtained. The graphs were built and the optimal duration of mixing the concrete mixture was determined.
The influence of polypropylene fibers on the strength of concrete of different grades has been investigated. The research results indicate that polypropylene fibers do not have an adhesive bond with cement stone and, therefore, cannot significantly increase the strength of concrete in comparison with steel fibers. However, polypropylene fibers can have a positive effect on the crack resistance and dynamic strength of road concretes.
Some Properties of Fiber-Reinforced Road Concrete Using Iron Ore Dressing Wastes
Lecture Notes in Civil Engineering
Onyshchenko, Volodymyr (Herausgeber:in) / Mammadova, Gulchohra (Herausgeber:in) / Sivitska, Svitlana (Herausgeber:in) / Gasimov, Akif (Herausgeber:in) / Akhmednabiev, Rasul (Autor:in) / Bondar, Lyudmila (Autor:in) / Demchenko, Oksana (Autor:in) / Shulgin, Vladimir (Autor:in)
International Conference BUILDING INNOVATIONS ; 2020
Proceedings of the 3rd International Conference on Building Innovations ; Kapitel: 2 ; 15-24
23.09.2021
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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