Fig. 7From: Image Analysis and DC Conductivity Measurement for the Evaluation of Carbon Nanotube Distribution in Cement MatrixThe fractured surface of the cement composites of the LF–M group fabricated under the low flow condition after having image thresholding, reversion, and binarization processes (Image size: 570 × 426 pixel): a LF–M0, b LF–M0.3, c LF–M0.6, and d LF–M1.5.Back to article page