海洋耐久混凝土配合比设计仍可按JGJ 55—2011《普通混凝土配合比设计规程》的计算程序进行,但要注意粉煤灰、矿渣等掺合料的量值,并确保减水剂的减水率满足要求;通过海洋耐久混凝土试配分析,大掺量矿物掺合料可提高混凝土的抗侵蚀能力,但其28 d时抗压强度偏低,建议海洋混凝土标准龄期强度取56 d。
M arine durable concrete mix design can still press the calculation program of "specification for mix proportion design of ordinary concrete"JGJ 55—2011,but pay attention to the magnitude of the admixture of fly ash,slag,and ensure water reduction superplasticizer meet the requirements. Through trial with analysis,high content mineral admixtures can improve corrosion resistance to concrete,but its compressive strength is lowwhen the 28 d,recommend ocean take concrete standard age strength 56 d.