›› 2007, Vol. 28 ›› Issue (S1): 98-102.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on reusing phosphogypsum-fly ash-lime solidified mixtures

ZHAO Yan, SHI Ming-lei   

  1. Rock and Soil Mechanics Research Institute of Southeast University, Nanjing 210096, China
  • Received:2007-04-28 Online:2007-10-25 Published:2014-03-28

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Abstract: Phosphogypsum-fly ash-lime solidified mixtures can form strength in a short time for the mixture, but excessive phosphogypsum will result in the expansion and the loss of strength . This technical note summarizes strength-forming mechanism of phosphogypsum mixtures for subbase constructions. The experimental results indicate that excessive phosphogypsum resulted in the expansion. The loss of strength and the optimum grading of phosphogypsum and fly ash is 1 to 1. The program of reusing phosphogypsum mixtures is discussed based on it.

Key words: phosphogypsum-fly ash-lime solidified material, swell

CLC Number: 

  • TU 411
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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