Asphalt and ore material adhesivity evaluating method based on surface free energy theory

• Main Authors: YANG GUANG, ZHOU XINGYE, WANG XUDONG, ZHANG LEI, ZHANG YAN, ZHANG YUZHEN, WANG YANZHU
• Format: Patent
• Language: Chinese; English
• Published: 27.07.2016
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to an asphalt and ore material adhesivity evaluating method based on the surface free energy theory and belongs to the field of highway function research. Certain parameters and the measurement condition of contact angle measurement are optimized, three kinds of standard liquid are determined, the surface energy parameter of asphalt and the change rule of the parameter can be obtained by measuring the contact angle data of the standard liquid with surface energy parameter known on the surfaces of asphalt and an ore material, and evaluation of the surface property of the ore material is conducted at the same time. The work of adhesion of asphalt and the ore material can be calculated through the work of adhesion formula 3 and the surface energy parameters of asphalt and the ore material, and quantitative evaluation of the adhesivity of asphalt and the ore material is conducted by comparing the work of adhesion. 本发明涉及基于表面自由能理论的沥青与矿料粘附性评价方法，属于公路性能研究领域。本发明优化了测定接触角时的些参数，测定条件，确定了三种标准液，通过测量已知表面