紅外線熱影像技術檢測混凝土結構物水膠比與水灰比

Inspection on the Water-Cement Ratio and Water-Binder Ratio of Concrete Using the Infrared Thermography Technology

張晉銘(Chin-Ming Chang)

指導教授 ： 吳志興

國立屏東科技大學/工學院/土木工程系所/碩士(2011年)

https://doi.org/10.6346/NPUST.2011.00025

摘要

本研究係採用紅外線熱影像技術中脈波熱影像檢測法，於有、無添加卜作嵐之試體外部加熱，利用紅外線熱影像儀，記錄不同水灰比WC、水膠比WB試體之熱消散情形，將WC和WB分別對熱消散溫度比Td的作二次多項式迴歸分析關係，以建立一套評估水灰比和水膠比的最佳模式。
試驗結果顯示，WC對在時間比1.0(2 hr)之Td值做迴歸分析，以密閉空間無空調試驗所得之相關性最佳，其迴歸式為WC=-1946.482Td2 +3693.432Td-1750.985，相關係數R2為0.829。WB對時間比在1.25(2.5 hr)之Td值作迴歸分析，以密閉空間無空調試驗所得之相關性最佳，其迴歸式為WB=-2192.620Td2+4159.210Td+1971.465，R2為0.956。由試驗結果顯示，延長記錄溫度衰降歷時之Td值並不確保會使曲線更加規律，因此建議熱消散歷時溫度觀察至時間比1.0(2 hr)即可。
關鍵字：紅外線熱影像技術、脈波熱影像法、水灰比、水膠比

關鍵字

紅外線熱影像技術 ； 脈波熱影像法 ； 水灰比 ； 水膠比

並列摘要

The thesis uesd the pulsed themography method of infrared thermogra- phy technology to heat concrete specimens with and without adding Pozzolanic material respectively. An infrared thermography meter was used to record the heat dissipation history on specimens of different water-cement ratios WC and different water-binder ratios WB. The test values are then used performed the 2nd order polynomial regression analysis to establish the relationship of WC and WB vs heat dissipation ratio Td, which can be used as a best model for evaluating WC and WB of concrete.
The test results showed that, the best result of the regression analysis of WC vs Td at heat dissipating time ratio 1.0 (2 hr) is that heating in a closure environment without air conditioning. The regression equation is WC = -1946.482 Td2 + 3693.432 Td - 1750.985. The correlation coefficient R2 is 0.829. The best result of the regression analysis of WB vs Td at heat dissipating time ratio 1.25 (2.5 hr) is that heating in a closure environment without air conditioning. The regression equation is WB = -2192.620 Td2 – 4159.210 Td + 1971.465. R2 is 0.956. Longer recording on Td won’t guarantee a more regular of the heat dissipating curve. Therefore, it is suggested that the temperature of heat dissipating history can only be observed only to heat dissipating time ratio 1.0 (2 hr).
Keywords: infrared thermography technology, pulsed thermography, water- binder ratio, water-cement ratio

並列關鍵字

infrared thermography technology ； pulsed thermography ； water- binder ratio ； water-cement ratio

參考文獻

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