公开(公告)号：US20230384249A1

公开(公告)日：2023-11-30

申请号：US18322669

申请日：2023-05-24

Applicant: RESEARCH INSTITUTE OF HIGHWAY MINISTRY OF TRANSPORT

Inventor： Mingliang LI ,  Jun LI ,  Hao WU

IPC: G01N25/00 ,  G01N33/38 ,  E01C23/01 ,  E01C7/18

CPC classification number: G01N25/00 ,  G01N33/383 ,  E01C23/01 ,  E01C7/18

Abstract: Provided is a method for evaluating and utilizing sonnenbrand basalt aggregate, including steps as follows: mixing a basalt aggregate defined as sonnenbrand basalt into an asphalt mixture; carrying out thermal aging experiments at different temperatures and durations to obtain a theoretical trigger time ti for the sonnenbrand phenomenon under a thermal aging temperature Ti; further calculating to obtain a theoretical thermal aging factor AF0 for the sonnenbrand phenomenon; statistically calculating a thermal aging factor AF for an actual construction to evaluate a performance of the basalt aggregate, if AF