高韧性的PVA-HPFRCC具有很高的能量吸收能力,但强度通常较低.本文采用工业废料(粉煤灰、硅灰等)替代部分水泥来制备高强度的PVA-HPFRCC,并研究粉煤灰、硅灰掺量以及PVA纤维体积掺量对高强度HPFRCC的弯曲行为的影响.研究结果表明:大掺量粉煤灰替代水泥可有效改善HPFRCC的应变-硬化特性,当粉煤灰掺量达到胶凝材料重量的60％时,其应变-硬化特性发挥的最为明显；增加PVA纤维体积掺量可提高HPFRCC的抗弯承载力和达到极限荷载时的变形能力,硅灰则降低了HPFRCC的韧性.
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