Research on reusing phosphogypsum-fly ash-lime solidified mixtures |
| |
| Authors: | ZHAO Yan SHI Ming-lei |
| |
| Institution: | Rock and Soil Mechanics Research Institute of Southeast University, Nanjing 210096, China |
| |
| 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. |
| |
| Keywords: | phosphogypsum-fly ash-lime solidified material swell |
|
| 点击此处可从《岩土力学》浏览原始摘要信息 |
| 点击此处可从《岩土力学》下载免费的PDF全文 |
