A constructive formula of ultrasonic - rebound method to test concrete strength is presented.

摘要提出一种超声回弹综合法检测混凝土强度的推定公式.

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Drill and rebound are two common concrete strength testing methods.

钻芯和回弹是两种常用的混凝土测强方法.

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Concrete strength grade: Leung for C 20, column C 25.

混泥土强度等级: 梁为C20, 柱为C25.

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The way to influence the concrete strength is floc and arborization formed in concrete.

影响混凝土强度的方式是在混凝土中形成絮状集合体和树枝状细脉.

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The project used Φ500 pile bored piles, pile concrete strength C 25 underwater concrete.

本工程桩基采用Φ500钻孔灌注桩, 桩身混凝土强度等级C25水下混凝土.

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Thus, developing concrete strength early stage measurement technique quickly and improving forecast accuracy have great significance.

因此, 发展混凝土强度早期快速测定技术,提高预测精度具有重大意义.

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This paper presents the revised strength - detecting curve between the concrete strength and the elastic recovery value.

通过大量的实验数据,提出适应现场情况的混凝土强度与回弹值之间的修正测强曲线.

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The accuracy of concrete strength evaluation has a great influence on the safety assessment of structures.

混凝土强度评定的准确性对结构物的安全性评价具有很大的影响.

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A test method inspection of concrete strength by pin - penetrationmethodand its research process are introduced in detail.

详细地介绍了针贯入法检测普通混凝土强度的操作方法及试验研究过程.

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