Investigating the Effect of Calcium Lignosulfonate on the Durability and Performance of Asphalt Mixtures

Table 8

Fitted equations of the Marshall design parameters.

Marshall parameter	Unit	Fitted equation	R-squared
Marshall stability	kN		0.956
Flow	mm		0.954
Unit weight	gr/		0.977
Air voids	%		0.968
VMA	%		0.983
VFB	%		0.961