Abstract
Textile reinforced concrete (TRC) is especially suitable for the thin-walled and light-weight structural elements with a high load-bearing capacity. For this thin element, the concrete cover thickness is an important factor in affecting the mechanical and anti-crack performance. Therefore, the influences of the surface treatment of the textile and mixing polypropylene fiber into the concrete on the properties of the components with different cover thickness were experimentally studied with four-point bending tests. The experimental results show that for the components with the same cover thickness, sticking sand on epoxy resin-impregnated textile and adding short fiber into the concrete are helpful to improve their mechanical performance. The 2–3 mm cover thickness is enough to meet the anchorage requirements of the reinforcement fiber and the component has good crack pattern and mechanical behavior at this condition. Comparison between the calculated and the experimental values of flexural capacity reveals satisfactory agreement. Finally, based on the calculation model of the crack spacing of reinforced concrete structures, the crack extension of this thin-wall component was qualitatively analyzed and the same results with the experimental were obtained.
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Supported by the National Natural Science Foundation of China (No.51108451), the Natural Science Foundation of Jiangsu Province of China(No.BK2011220), the Fundamental Research Funds for the Central Universities of China(Nos.2010QNA45, 2011FZA4017), Postdoctoral Science Foundation of China (No.2012M511817) and Postdoctoral Science Foundation of Jiangsu Province(No.1102082C)
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Yin, S., Xu, S. & Li, H. Improved mechanical properties of textile reinforced concrete thin plate. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 28, 92–98 (2013). https://doi.org/10.1007/s11595-013-0647-z
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DOI: https://doi.org/10.1007/s11595-013-0647-z