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- W2996835707 abstract "The results of experimental studies of deformations of steel fiber reinforced concrete highway gutter drain under short-term reloads with different levels of effort ηcyc = 0.3; 0.5; 0.7 are given. Methods of experimental research are presented. Goal. The purpose of this article is to elucidate the results of the conducted research on determining the deformability of steel fiber reinforced concrete highway gutter drain at short-term re-loads with different levels. Methodology. For the planned study, steel fiber reinforced concrete highway gutter drains with a percentage of reinforcement μ = 1% were manufactured; μ = 2% and μ = 3%. Each type of sample is affected by short-term reloads with different loading levels: η = 0.3; η = 0,5 and η = 0,7 with an effort step of 8 - 12% of the destructive force. During the study, the bottom of the gutter rested on a solid base. The hydraulic press of PSU-125 was used for this purpose. To improve the accuracy of the measurement of the active force, an exemplary tested dynamometer is used, which makes it possible to measure the load with an accuracy of 50 N. The load is created by a hydraulic jack. Results. At repeated loads, the level of which does not exceed 70% of the destructive ones, the SFRC gutter works almost elastically. Increasing the percentage of reinforcement with steel fibers from μ = 1% to μ = 2% gives an increase in bearing capacity (on average) for gutter with SFRC at repeated low-cycle loads up to 40%, and from μ = 1% to μ = 3% gives an increase in carrying capacity of up to 58%." @default.
- W2996835707 created "2020-01-10" @default.
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- W2996835707 date "2019-12-21" @default.
- W2996835707 modified "2023-09-25" @default.
- W2996835707 title "Operation of a steel fiber reinforced concrete highway gutter drain on the roads during the short repeated loadings with different levels of effort" @default.
- W2996835707 doi "https://doi.org/10.30977/bul.2219-5548.2019.86.1.181" @default.
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