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. 21, 2021
Filed:
Apr. 20, 2021
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, CN;
Zhiqing Li, Beijing, CN;
Yingxin Zhou, Beijing, CN;
Jianwei Hou, Beijing, CN;
Pengpeng Zhang, Beijing, CN;
Abstract
Design and construction method for improving an expansive soil embankment using phosphogypsum and microbes, including the following steps: (1) placinginto a culture medium to prepare a microbial solution, and mixing urea and calcium chloride with water to prepare a cementing fluid; (2) mixing and stirring a mixture, the microbial solution and water, adding the cementing solution well, and mixing the cementing fluid with water to prepare an improved mixture; and (3) leveling and compacting original ground, laying geomembranes, the improved mixture, and geogrids, laying a last layer of geomembrane on the top surface of the embankment after pavement of the embankment, and paving a roadbed. The design and construction method can meet construction requirements of highway embankment projects and roadbed projects of first-grade and other grades of roads, and consume solid waste phosphogypsum.