The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 2025
Filed:
Jan. 18, 2025
Huazhong University of Science and Technology, Hubei, CN;
Hubei Changjiang Road and Bridge Co., Ltd., Hubei, CN;
Hubei Communications Construction Testing Co., Ltd., Hubei, CN;
Derun Zhang, Hubei, CN;
Peixin Xu, Hubei, CN;
Ziyang Liu, Hubei, CN;
Wei Zeng, Hubei, CN;
Yang Zhao, Hubei, CN;
Lijing Wang, Hubei, CN;
Fusong Wang, Hubei, CN;
Junxing Zheng, Hubei, CN;
Qisheng Hu, Hubei, CN;
Jinbiao Tang, Hubei, CN;
Chenhui Peng, Hubei, CN;
Huazhong University of Science and Technology (GOVERNMENT), Wuhan, CN;
Hubei Changjiang Road and Bridge Co., Ltd., Wuhan, CN;
Hubei Communications Construction Testing Co., Ltd., Wuhan, CN;
Abstract
The present invention precisely concerns the calculation method for the optimum two-component synchronous rejuvenator dosage for aged SBS-modified asphalt, including the following steps: (1) calculating the characteristic peak area ratio of unaged SBS molecular chain Iand unaged pure asphalt IB, aI0 and ARI0; (2) selecting four types of SBS-modified asphalt with different aging degrees and calculating their IBA, IB, aIA and ARIA; (3) adding the rejuvenator to above asphalts and calculating their post-rejuvenation BR, IB, aIR and ARIR; (4) establishing the regression equation between optimum rejuvenator dosage and characteristic peak area ratio requiring restoration due to aging; (5) as the given aged SBS-modified asphalt, substituting the characteristic peak area ratio requiring restoration into the equation to calculate the required optimum rejuvenator dosage. The invention can quickly and accurately determine the optimum SBS molecular chain rejuvenator dosage and pure asphalt component regulator in the aged SBS-modified asphalt.