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:
Sep. 12, 2023
Filed:
Jan. 09, 2023
Shandong University, Jinan, CN;
China Power Construction Municipal Construction Group Co., Ltd, Tianjin, CN;
Northeast Electric Power University, Jilin, CN;
Shandong Boshuo Geotechnical Engineering Design Consulting Co., Ltd, Jinan, CN;
Ke Wu, Jinan, CN;
Tao Yang, Jinan, CN;
Cao Wang, Jinan, CN;
Guodong Li, Jinan, CN;
Rong Chen, Jinan, CN;
Jiahui Zhao, Jinan, CN;
Dongxue Hao, Jinan, CN;
Mingyue Ma, Jinan, CN;
Hongna Yang, Jinan, CN;
Shandong University, Jinan, CN;
China Power Construction Municipal Construction Group Co., Ltd, Tianjin, CN;
Northeast Electric Power University, Jilin, CN;
Shandong Boshuo Geotechnical Engineering Design Consulting Co., Ltd, Jinan, CN;
Abstract
The present disclosure relates to a high-strength concrete and a preparation method thereof. The high-strength concrete includes lignin, recycled fine powder, cement, water, sand, gravels and a water reducing agent. The recycled fine powder is recycled fine powder of discarded concrete, and is prepared by separating solid waste of discarded buildings, then performing impurity removal and crushing processing, and grinding same by a ball mill into dust with a particle size of less than 0.16 mm. The lignin is discarded wood lignin, which is prepared by crushing the wood, stirring and extracting a sodium hydroxide aqueous solution with a mass concentration of 5% for 1 to 2 hours at the temperature of 80 DEG C. to obtain a black lignin alkali solution, adding a hydrochloric acid solution with a mass concentration of 30% into the alkali solution for stirring, and making the pH reduced to 7.0 for standing and layering.