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本文对碳纤维、聚丙烯纤维混杂纤维增强混凝土（HFRC）材料的弯曲疲劳性能进行了较详细的试验研究。根据试验数据给出了HFRC材料的S-lgN曲线，经线性回归得到了材料的疲劳方程。阐明了疲劳寿命、疲劳强度随混杂纤维掺量的变化规律。
In this paper, a detailed experimental study was conducted on the flexural fatigue properties of carbon fiber and polypropylene fiber hybrid fiber reinforced concrete (HFRC) materials. Based on the experimental data, the S-lgN curve of the HFRC material is given and the fatigue equation of the material is obtained by linear regression. Elucidated the fatigue life, fatigue strength with the variation of the mixing fiber content.