三峡工程混凝土质量声波波速标准研究

通过对不同设计标号、龄期、级配的混凝土试件抗压强度和声波速度的比较试验，结合现场混凝土声波测试，讨论了混凝土强度、龄期、级配、测孔间距等因素对混凝土波速的影响，并根据现行相关混凝土质量验收规范，提出了三峡工程混凝土质量声波波速标准。通过在三峡工程混凝土质量检测中的实际应用，认为该标准是可行的。

Study on Standard of Acoustic Velocity for Concrete Quality of TGP

Through the comparison of test results of compression strength and acoustic velocity for the concrete test samples used in TGP with different design grades, condensation periods and size distributions, and in combination with acoustic velocity tests in situ, the influences of concrete strength, condensation period and size distribution on acoustic velocity in concrete were discussed. Based on the current acceptable criterion of concrete, the standard of detecting concrete quality with acoustic velocity used in TGP was proposed. The standard has been used in detecting concrete quality of TGP and is considered to be feasible.