Orthogonal experimental study on compressive properties of composite steel fiber concrete

Sheng Chang ； Yunrong Luo

《International Core Journal of Engineering》 7卷11期 (2021/11) Pp. 15-18

https://doi.org/10.6919/ICJE.202111_7(11).0003

摘要

Based on orthogonal test, the compressive strength of composite steel fiber reinforce concrete(CSFRC) is analyzed by range and variance, and the sensitivity of compressive strength factors and the optimal combination of factors are obtained. The results show that the order of influencing factors on compressive strength is volume content of steel fiber, steel fiber composite layer height and height of steel fiber concrete composite layer; the optimal combination was 1.5% of steel fiber volume, 2cm of composite layer height, 1/4 short steel fiber and 3/4 long steel fiber.

關鍵字

Steel fiber ； concrete ； mechanical property ； orthogonal test

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