Figure 7.
The image features three distinct graphs labelled a, b, and c. Graph a presents the percentage of Degree of Hydration D o H of C 3 A, with the y axis indicating values from 76 to 98 percent and the x axis categorising the data by three time points: after alum reaction, 7 days, and 28 days. Different sample categories are represented by distinct shapes, such as circles and squares, with accompanying colours. Graph b illustrates the calculated ettringite percentage, with values ranging from 18 to 28 percent on the y axis, using the same time point categories on the x axis. Graph c displays measured ettringite percentages, similarly formatted. Each graph contains error bars representing variability, and the layout is compact, aiding comparative analysis across the three graphs.(a) DoH of C3A. (b) Calculated amounts of ettringite (from C3A/C4AF dissolution). (c) Measured ettringite contents