Abstract
The aim of this study is to determine the effect of fiber reinforcement on deformations arising from the applied load in the compressed flanges of reinforced rubber concrete beams of a T-section.This article presents the results of testing prototypes of rubber concrete and fiber rubber concrete beams of a T-section, tested to a pure bending. The strain curves for compressed flanges (3.6h’f , 4.8h’f , 8h’f overhangs) of reinforced rubber concrete beams of T-section are obtained.
Highlights
Composite material - rubber concrete, obtained on the basis of liquid rubbers, has a high, almost universal chemical resistance and high physical and mechanical properties
Component composition and coefficients of chemical resistance of this polymer concrete are given in tables 1 and 2
Dimensions of experimental samples of the beams: Length (l) – 1400 mm; web height (h-hf′ ) – 95 mm; web width (b)– 60 mm; flange height - 25 mm; flange width – 240, 300 и 460 mm; diameter of the longitudinal reinforcing bar –2Ø10; which corresponds to the percentage of longitudinal reinforcement (μ) – 2,50 %
Summary
Composite material - rubber concrete (rubcon), obtained on the basis of liquid rubbers, has a high, almost universal chemical resistance and high physical and mechanical properties. Component composition and coefficients of chemical resistance of this polymer concrete are given in tables 1 and 2. Chemical resistance coefficient after 1 year of exposure Projected after 10 years. An analysis of previous studies [9,10,12,14-16] shows that based on rubcons, it is possible to create highly efficient reinforced structures for various purposes, including flexural ones of various cross sections [1 – 7,11,13]. The T- section, in comparison with the rectangular, is more effective from the point of view of profitability, because from the tensile zone, poorly resilient to tension, a part of the material that was practically not involved in the work was removed
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