采用成熟度理论预测海工混凝土抗压强度

关键字：成熟度,理论,预测,海工,混凝土,抗压

（1.中交公路规划设计院有限公司，北京  100088；
2.中交武汉港湾工程设计研究院有限公司，湖北 武汉  430040）

    摘要：混凝土由于水化温升的影响，结构内部温度与试验室标准养护或同条件养护下留样混凝土试块温度存在较大差别，因此采用留样混凝土强度作为实体构件的抗压强度可能存在较大误差。介绍了采用成熟度理论预测水下封堵用混凝土抗压强度的方法。现场结果表明：与留样相比，采用成熟度理论预测混凝土强度能更加准确地反映混凝土实际抗压强度。
    关键词：成熟度；抗压强度；等效龄期
    中图分类号：TU528.01        文献标识码：A        文章编号：1001-702X（2017）09-0015-04

Use of maturity method to estimate compressive strength of marine concrete
SONG Yintong1，HU Jun2，HU Jiabing2，QIN Mingqiang2
（1.CCCC Highway Consultants Co. Ltd.，Beijing 100088，China；
2.CCCC Wuhan Harbor Engineering Design & Research Institute Co. Ltd.，Wuhan 430040，China）

    Abstract：Because of hydration temperature rise，the interior temperature of the structure concrete has significant different from the concrete under laboratory curing environment or the same curing condition，thus cause a discrepancy of the compressive strength between the entity concrete and the reserved sample concrete. Maturity theory was recommended in detail to estimate compressive strength of underwater mass concrete. The results show that maturity theory was more accurate to reflect the actual strength of concrete compared with specimen.
    Key words：maturity，compressive strength，equivalent age