Figure 14.
The image depicts 3 scanning electron microscope images labelled A, B, and C of a sample at 5000 times magnification. Each image depicts the intricate surface structure of the sample, with labels pointing to various features. Image A includes markings indicating inter-aggregate and intra-aggregate spaces alongside an instance of ettringite. Image B also depicts similar aggregates with annotations for intra-aggregate and inter-aggregate features, highlighting the relationships between particles. Image C depicts another view revealing inter-aggregate filling with ettringite. Measurement scales indicate 1 micrometre, providing context for the fine structural detail visible in the images.Comparison of SEM images of reconstituted samples at 1.5wL (a) 1% cement content, (b) 2% cement content and (c) 3% cement content