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通过掺加粉煤灰的高性能混凝土的力学性能试验及在荷载和盐雾耦合作用下的抗氯离子侵蚀性能试验,分析了粉煤灰掺量和应力水平对高性能混凝土的抗压强度和抗氯离子侵蚀性能的影响。研究结果表明,相同应力下随着粉煤灰掺量的增大,抗压强度逐渐减小,渗透深度先减小后增大;拉应力降低了高性能混凝土的抗氯离子侵蚀性能,压应力使高性能混凝土的抗氯离子侵蚀能力提高,可见荷载性质对高性能混凝土的抗氯离子性能存在较大影响。
Through the mechanical properties test of HPC admixed with fly ash and the test of chloride ion erosion resistance under the coupling of load and salt spray, the influence of fly ash content and stress level on the compressive strength, Effect of resistance to chloride ion erosion. The results show that under the same stress, the compressive strength decreases with the increase of fly ash content, and the penetration depth first decreases and then increases. Tensile stress decreases the resistance to chloride ion attack, compressive stress So that high-performance concrete resistance to chloride ion erosion increased, showing the nature of the load resistance of high-performance concrete chloride ion performance there is a greater impact.