Figure 16
The illustration displays two line graphs, labeled “a” on the left and “b” on the right, both illustrating “Temperature (degrees Celsius)” on their vertical axes, ranging from 0 to 1000 in increments of 200. The horizontal axis of both charts represents various depths or states: “Exp” (exposed surface), “20 millimeters”, “40 millimeters”, “60 millimeters”, “80 millimeters”, and “Unexp” (unexposed surface). A dashed blue horizontal line is present at 140 degrees Celsius on both graphs. Two red text labels, “1 h” and “2 h”, are also placed on each graph, indicating approximate time points on the temperature decay curves. Chart “a” presents temperature profiles for a “Control” mix and mixes with varying percentages of crumb rubber (C R), specifically “C R-05”, “C R-10”, “C R-20”, “C R-30”, “C R-40”, and “C R-50”. Each mix is represented by a distinct colored line with different markers, as indicated by the legend in the top-right corner of chart “a.” All lines start at a high temperature (around 1000 to 1100 degrees Celsius) at “Exp” and generally decrease as the depth increases, reaching lower temperatures (below 200 degrees Celsius) at “Unexp”. The lines show varying rates of temperature decrease, with some mixes exhibiting steeper drops than others. Chart “b” mirrors the structure of chart “a,” but presents temperature profiles for mixes with varying percentages of RESIN 8 (R 8), specifically “Control”, “R 8-05”, “R 8-10”, “R 8-20”, “R 8-30”, “R 8-40”, and “R 8-50”. Similar to chart “a,” each mix is represented by a distinct colored line with different markers, as indicated by the legend in the top-right corner of chart “b.” The temperature trends are similar to chart “a,” starting high at “Exp” and decreasing with increasing depth to “Unexp”.Temperature gradient of SCB with (a) CR and (b) R8. Authors’ own work