Construction method for using modified phosphogypsum in roadbed and slope

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10655280
SERIAL NO

16730693

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES100029 BEIJING CITY CHAOYANG DISTRICT BEITUCHENG WEST ROAD NO 19 BEIJING CITY BEIJING CITY 100029

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Zhiqing Beijing, CN 25 51

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 19, 2027
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 19, 2031
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00