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对比试验分析了射钉法测试仪和幼龄期混凝土强度专用测试仪在不同混凝土强度区间检测适用性。结果表明,对于抗压强度不大于2.0MPa的混凝土构件,采用幼龄期混凝土强度专用测试仪测得混凝土强度换算值和贯入深度值之间相关性相对较好,宜采用幼龄期混凝土强度专用测试仪测定其强度;对于抗压强度在2.0MPa以上的混凝土构件,采用射钉法测试仪测得混凝土强度换算值和贯入深度值之间相关性相对较好,宜采用射钉法测试仪测定其强度。
The comparative test analyzes the applicability of the nailing method tester and the concrete strength tester for young age in different concrete strength intervals. The results show that for concrete members with compressive strength no more than 2.0MPa, the correlation between the converted value of concrete strength and penetration depth value measured by the special tester for concrete strength in young age is relatively good, and the concrete strength in young age Special tester to measure the strength; for compressive strength of concrete components above 2.0MPa, using the nailing method tester measured value of concrete strength and depth of penetration correlation value is relatively good, should adopt the nail method test Instrument determination of its strength.