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3D reconstructed images of reacted cement samples (turquoise represents the PVA structure in a 0.25 sample, yellow bulk shows cement prisms are shown in yellow bulk (all samples), the PVA structures in Figure 1 are shown in green (sample 0.3, 0.4 and 0.5), the cracks are shown in light blue (sample 0.3, 0.4, and 0.5; 0.25 has no cracks).
