混凝土無損檢測研究畢業(yè)論文.pdf
約29頁PDF格式手機打開展開
混凝土無損檢測研究畢業(yè)論文,[摘要] 混凝土是我國建筑工程結構中最主要的建筑材料?因此提高混凝土質量檢測水平和準確性?對確保工程質量有重大意義。無損檢測是通過混凝土非破損參數(shù)與混凝土強度間的相關關系?建立測強曲線來推定現(xiàn)場混凝土的強度值。我國常用的無損檢測方法有回彈法和超聲回彈綜合法兩種?本文就超聲回彈綜合法進行了初步的...
內容介紹
此文檔由會員 sonygo 發(fā)布
混凝土無損檢測研究畢業(yè)論文
[摘要] 混凝土是我國建筑工程結構中最主要的建筑材料?因此提高混凝土質量檢測
水平和準確性?對確保工程質量有重大意義。無損檢測是通過混凝土非破損參數(shù)與混凝
土強度間的相關關系?建立測強曲線來推定現(xiàn)場混凝土的強度值。我國常用的無損檢測
方法有回彈法和超聲回彈綜合法兩種?本文就超聲回彈綜合法進行了初步的研究。實驗
采用南陽地區(qū)常用的地方材料?配置C15混凝土試塊?然后按不同的齡期、分別用回彈
儀、超聲儀和壓力機對試塊進行測試?經計算得出相關試驗數(shù)據(jù)。通過這些數(shù)據(jù)?結合
最小二乘法原理?采用幾種典型函數(shù)模型進行擬合運算。并對回歸方程的顯著性進行檢
驗?從而更準確地評價混凝土強度。
[關鍵詞] 混凝土?無損檢測?超聲-回彈綜合法?數(shù)據(jù)處理
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 錄
1 緒論 .................................................................... 1
1.1 引言 .............................................................. 1
1.2 混凝土無損檢測技術綜述 ............................................ 1
1.3 混凝土無損檢測國內外研究現(xiàn)狀 ...................................... 1
1.4 混凝土無損檢測技術特點 ............................................ 2
1.5 研究混凝土無損測強的目的和意義 .................................... 2
1.6 本課題研究的內容方法及意義 ........................................ 3
2 混凝土強度的無損檢測理論 .............................................. 4
2.1 回彈法、超聲法概述 ................................................ 4
2.2 超聲回彈綜合法原理及影響因素 ...................................... 5
3 超聲—回彈綜合法的實驗設計研究 ........................................ 8
3.1 實驗方案 .......................................................... 8
3.2 初步配合比及材料用量 .............................................. 8
3.3 儀器的選用 ........................................................ 9
3.4 試塊的制作和養(yǎng)護 .................................................. 9
3.5 試塊的測強 ........................................................ 9
4 混凝土無損檢測數(shù)據(jù)處理和曲線回歸分析 ................................. 12
4.1 原始數(shù)據(jù)及處理方法 ............................................... 12
4.2 原始數(shù)據(jù) ......................................................... 12
4.3 回歸分析 ......................................................... 14
4.4 回歸結果的比較 ................................................... 21
4.5 測強曲線之間的比較 ............................................... 22
結束語 ................................................................... 23
參考文獻 ................................................................. 24
致謝 ..................................................................... 25
[摘要] 混凝土是我國建筑工程結構中最主要的建筑材料?因此提高混凝土質量檢測
水平和準確性?對確保工程質量有重大意義。無損檢測是通過混凝土非破損參數(shù)與混凝
土強度間的相關關系?建立測強曲線來推定現(xiàn)場混凝土的強度值。我國常用的無損檢測
方法有回彈法和超聲回彈綜合法兩種?本文就超聲回彈綜合法進行了初步的研究。實驗
采用南陽地區(qū)常用的地方材料?配置C15混凝土試塊?然后按不同的齡期、分別用回彈
儀、超聲儀和壓力機對試塊進行測試?經計算得出相關試驗數(shù)據(jù)。通過這些數(shù)據(jù)?結合
最小二乘法原理?采用幾種典型函數(shù)模型進行擬合運算。并對回歸方程的顯著性進行檢
驗?從而更準確地評價混凝土強度。
[關鍵詞] 混凝土?無損檢測?超聲-回彈綜合法?數(shù)據(jù)處理
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 錄
1 緒論 .................................................................... 1
1.1 引言 .............................................................. 1
1.2 混凝土無損檢測技術綜述 ............................................ 1
1.3 混凝土無損檢測國內外研究現(xiàn)狀 ...................................... 1
1.4 混凝土無損檢測技術特點 ............................................ 2
1.5 研究混凝土無損測強的目的和意義 .................................... 2
1.6 本課題研究的內容方法及意義 ........................................ 3
2 混凝土強度的無損檢測理論 .............................................. 4
2.1 回彈法、超聲法概述 ................................................ 4
2.2 超聲回彈綜合法原理及影響因素 ...................................... 5
3 超聲—回彈綜合法的實驗設計研究 ........................................ 8
3.1 實驗方案 .......................................................... 8
3.2 初步配合比及材料用量 .............................................. 8
3.3 儀器的選用 ........................................................ 9
3.4 試塊的制作和養(yǎng)護 .................................................. 9
3.5 試塊的測強 ........................................................ 9
4 混凝土無損檢測數(shù)據(jù)處理和曲線回歸分析 ................................. 12
4.1 原始數(shù)據(jù)及處理方法 ............................................... 12
4.2 原始數(shù)據(jù) ......................................................... 12
4.3 回歸分析 ......................................................... 14
4.4 回歸結果的比較 ................................................... 21
4.5 測強曲線之間的比較 ............................................... 22
結束語 ................................................................... 23
參考文獻 ................................................................. 24
致謝 ..................................................................... 25
