混凝土无损检测研究毕业论文.pdf
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混凝土无损检测研究毕业论文,[摘要] 混凝土是我国建筑工程结构中最主要的建筑材料?因此提高混凝土质量检测水平和准确性?对确保工程质量有重大意义。无损检测是通过混凝土非破损参数与混凝土强度间的相关关系?建立测强曲线来推定现场混凝土的强度值。我国常用的无损检测方法有回弹法和超声回弹综合法两种?本文就超声回弹综合法进行了初步的...
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混凝土无损检测研究毕业论文
[摘要] 混凝土是我国建筑工程结构中最主要的建筑材料?因此提高混凝土质量检测
水平和准确性?对确保工程质量有重大意义。无损检测是通过混凝土非破损参数与混凝
土强度间的相关关系?建立测强曲线来推定现场混凝土的强度值。我国常用的无损检测
方法有回弹法和超声回弹综合法两种?本文就超声回弹综合法进行了初步的研究。实验
采用南阳地区常用的地方材料?配置C15混凝土试块?然后按不同的龄期、分别用回弹
仪、超声仪和压力机对试块进行测试?经计算得出相关试验数据。通过这些数据?结合
最小二乘法原理?采用几种典型函数模型进行拟合运算。并对回归方程的显著性进行检
验?从而更准确地评价混凝土强度。
[关键词] 混凝土?无损检测?超声-回弹综合法?数据处理
The Study of Non-Destructive Testing for C15 Concrete Civil Engineering Major
Abstract: Concrete is the most important material in the construction project .Improving
the level of concrete quality test and accuracy directly affects the security of construction and
ensures the quality of engineering. Using the non-destructive testing can build the strength
curve to infer on-site concrete strength by correlation of the concrete non-destructive
parameter and the concrete strength. In our country there are two common methods of
non-destructive test: rebound hammer method and the ultrasonic-rebound combined method.
By deep research in the ultrasonic-rebound combined method in this study. Using the
common materials in Nanyang ,we made C15 concrete samples. Rebound measure instrument,
ultrasonic measure instrument and compressive machine have been applied respectively to
determine the strength in different aging. Then relatively test data have been calculated. The
test data were obtained to regress several functions by least square method. The regression
equations qualities have been examined. By using the formula, the concrete strength could be
more accurately eva luated
Key Words: Concrete?Non-destructive testing?Ultrasonic-rebound combined method?
Processing date
目 录
1 绪论 .................................................................... 1
1.1 引言 .............................................................. 1
1.2 混凝土无损检测技术综述 ............................................ 1
1.3 混凝土无损检测国内外研究现状 ...................................... 1
1.4 混凝土无损检测技术特点 ............................................ 2
1.5 研究混凝土无损测强的目的和意义 .................................... 2
1.6 本课题研究的内容方法及意义 ........................................ 3
2 混凝土强度的无损检测理论 .............................................. 4
2.1 回弹法、超声法概述 ................................................ 4
2.2 超声回弹综合法原理及影响因素 ...................................... 5
3 超声—回弹综合法的实验设计研究 ........................................ 8
3.1 实验方案 .......................................................... 8
3.2 初步配合比及材料用量 .............................................. 8
3.3 仪器的选用 ........................................................ 9
3.4 试块的制作和养护 .................................................. 9
3.5 试块的测强 ........................................................ 9
4 混凝土无损检测数据处理和曲线回归分析 ................................. 12
4.1 原始数据及处理方法 ............................................... 12
4.2 原始数据 ......................................................... 12
4.3 回归分析 ......................................................... 14
4.4 回归结果的比较 ................................................... 21
4.5 测强曲线之间的比较 ............................................... 22
结束语 ................................................................... 23
参考文献 ................................................................. 24
致谢 ..................................................................... 25
[摘要] 混凝土是我国建筑工程结构中最主要的建筑材料?因此提高混凝土质量检测
水平和准确性?对确保工程质量有重大意义。无损检测是通过混凝土非破损参数与混凝
土强度间的相关关系?建立测强曲线来推定现场混凝土的强度值。我国常用的无损检测
方法有回弹法和超声回弹综合法两种?本文就超声回弹综合法进行了初步的研究。实验
采用南阳地区常用的地方材料?配置C15混凝土试块?然后按不同的龄期、分别用回弹
仪、超声仪和压力机对试块进行测试?经计算得出相关试验数据。通过这些数据?结合
最小二乘法原理?采用几种典型函数模型进行拟合运算。并对回归方程的显著性进行检
验?从而更准确地评价混凝土强度。
[关键词] 混凝土?无损检测?超声-回弹综合法?数据处理
The Study of Non-Destructive Testing for C15 Concrete Civil Engineering Major
Abstract: Concrete is the most important material in the construction project .Improving
the level of concrete quality test and accuracy directly affects the security of construction and
ensures the quality of engineering. Using the non-destructive testing can build the strength
curve to infer on-site concrete strength by correlation of the concrete non-destructive
parameter and the concrete strength. In our country there are two common methods of
non-destructive test: rebound hammer method and the ultrasonic-rebound combined method.
By deep research in the ultrasonic-rebound combined method in this study. Using the
common materials in Nanyang ,we made C15 concrete samples. Rebound measure instrument,
ultrasonic measure instrument and compressive machine have been applied respectively to
determine the strength in different aging. Then relatively test data have been calculated. The
test data were obtained to regress several functions by least square method. The regression
equations qualities have been examined. By using the formula, the concrete strength could be
more accurately eva luated
Key Words: Concrete?Non-destructive testing?Ultrasonic-rebound combined method?
Processing date
目 录
1 绪论 .................................................................... 1
1.1 引言 .............................................................. 1
1.2 混凝土无损检测技术综述 ............................................ 1
1.3 混凝土无损检测国内外研究现状 ...................................... 1
1.4 混凝土无损检测技术特点 ............................................ 2
1.5 研究混凝土无损测强的目的和意义 .................................... 2
1.6 本课题研究的内容方法及意义 ........................................ 3
2 混凝土强度的无损检测理论 .............................................. 4
2.1 回弹法、超声法概述 ................................................ 4
2.2 超声回弹综合法原理及影响因素 ...................................... 5
3 超声—回弹综合法的实验设计研究 ........................................ 8
3.1 实验方案 .......................................................... 8
3.2 初步配合比及材料用量 .............................................. 8
3.3 仪器的选用 ........................................................ 9
3.4 试块的制作和养护 .................................................. 9
3.5 试块的测强 ........................................................ 9
4 混凝土无损检测数据处理和曲线回归分析 ................................. 12
4.1 原始数据及处理方法 ............................................... 12
4.2 原始数据 ......................................................... 12
4.3 回归分析 ......................................................... 14
4.4 回归结果的比较 ................................................... 21
4.5 测强曲线之间的比较 ............................................... 22
结束语 ................................................................... 23
参考文献 ................................................................. 24
致谢 ..................................................................... 25
