Polymer-Cement Mortar with Quarry Waste as Sand Replacement

Table 4

Linear equations and R-square value for most representative mixtures (own source).

Linear equations	R square value
y1 = 0.1957x + 3.2262;	R^2 = 0.8707
y2 = 0.1943x + 2.4037;	R^2 = 0.8368
y4 = 0.1923x + 1.8775;	R^2 = 0.8339
y7 = 0.1458x + 2.5507;	R^2 = 0.6328
y8 = 0.2096x + 1.2071;	R^2 = 0.9445