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3D void distribution in concrete

Background: Objective: Effects of curing temperature & ASR(alkali-silica reaction) on void distribution Method: Micro-Tomography Construct 3D void map using Matlab. 3D void distribution in concrete. http://www.ce.berkeley.edu/~paulmont/. Problem!. Solution!.

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3D void distribution in concrete

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  1. Background: Objective: Effects of curing temperature & ASR(alkali-silica reaction) on void distribution Method: • Micro-Tomography • Construct 3D void map using Matlab 3D void distribution in concrete • http://www.ce.berkeley.edu/~paulmont/ Problem! Solution! 2011 Spring, EPS207, Juhyuk Moon

  2. 1st image of 500 stacking images Original :2075 by 2075 Pixels Resize to 500 by 500 Pixels Scale: 1pixel = 0.0087 mm Void Matrix Aggregate 4.35 mm 18 mm 0.87 mm

  3. Void segmentation <original image> <bw, 0.46 thresh> <median smoothing w/ size 2> <erode w/ radius 1> <close w/ radius 2> <open w/ radius 2> <close w/ radius 5> <void map, larger than 100 pixels>

  4. 3D-Reconstruction of void 85°C curing 85°C curing + ASR 20°C curing

  5. 3D Void distribution A 4.35 mm B A B

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