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:
May. 19, 2020
Filed:
Dec. 30, 2019
Institute of Geology and Geophysics, Chinese Academy of Sciences, Chaoyang District, Beijing, CN;
Zhiqing Li, Beijing, CN;
Abstract
A design and construction method for using modified phosphogypsum in a roadbed and slope, where the method includes preparing a phosphogypsum-containing roadbed mixture, setting moisture content of the roadbed mixture, preparing a phosphogypsum-containing slope mixture, and construction of a roadbed and slope. The preparation of the phosphogypsum-containing roadbed mixture includes 90 parts by weight of phosphogypsum and 10 parts by weight of cement, and uniformly mixed and stirred to obtain a base material mixture; and 2-4 parts by weight of sodium silicate is dissolved in water, and the obtained solution is added to the base material mixture to obtain the phosphogypsum-containing roadbed mixture. The design and construction method are simple, can satisfy roadbed strength and rebound modulus requirements, and can be widely applied to filling-deficient areas with a high yield of phosphogypsum solid wastes.