针贯入法测定混凝土强度技术研究 |
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引用本文: | 赖泽成. 针贯入法测定混凝土强度技术研究[J]. 福建建设科技, 2017, 0(1). DOI: 10.3969/j.issn.1006-3943.2017.01.015 |
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作者姓名: | 赖泽成 |
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作者单位: | 福建省建筑科学研究院 福建省绿色建筑技术重点试验室 福建福州 350025 |
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基金项目: | 福建省住房和城乡建设系统2014年科学技术项目计划,项目编号KY20140019。 |
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摘 要: | 依据针贯入法的检测原理,分别对C30~C70混凝土强度和贯入深度进行了试验研究。在试验研究的基础上,对试验数据采用不同类型的曲线进行了拟合,且进行对比分析,发现贯入深度与混凝土强度为非线性的指数函数关系。进一步探讨该测强曲线的精度是否满足混凝土幼龄期强度和高强混凝土的测定及验证性检测。
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关 键 词: | 针贯入法 混凝土幼龄期强度 测强曲线 |
Determination of needle penetration of the concrete strength |
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Abstract: | According to the detection principle of needle penetration method , strength and penetration depth of C 30 ~C70 concrete was studied in the paper .Based on the test results , the test data of the different types of curve fitting and comparative analysis , it was found that the penetration depth and the strength of concrete met the exponential function of nonlinear .Whether the measured curve accuracy met the strength of early age concrete , determination and validation testing of high strength concrete were further explored . |
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Keywords: | Needle penetration early age concrete strength Strong curve |
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