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研究了荷载和冻融循环双重损伤因子同时作用下高性能混凝土（ＨＰＣ） 的损伤规律．试验结果表明，在不同应力比的荷载作用下，高性能混凝土的抗冻性能随应力比的提高而下降．掺入钢纤维、引气或两者复合之后的高性能混凝土抵抗双因子损伤能力大大提高，抗冻性显著改善．实验结果还表明，在冻融与荷载双重损伤因子共同作用下的混凝土损伤程度远大于两种因子分别单独作用下损伤程度的简单叠加；引气钢纤维高性能混凝土抑制双因子作用下损伤的能力比单掺钢纤维或单引气的高性能混凝土又有进一步的提高．
The damage regularity of high performance concrete (HPC) under simultaneous load and freeze-thaw cycle damage factors was studied. The experimental results show that under different stress ratios, the freeze-thaw performance of high performance concrete decreases with the increase of stress ratio. After the incorporation of steel fiber, bleed air, or a combination of both, the high-performance concrete’s ability to resist two-factor damage is greatly improved, and its frost resistance is significantly improved. The experimental results also show that the damage degree of concrete under the combined action of freeze-thaw and load damage factors is much greater than the simple superposition of the damage caused by two factors acting alone; the ability of air-entrance steel fiber high-performance concrete to inhibit damage under dual-factor action Compared with single-blended steel fiber or single bleed air, high performance concrete has further improved.