Hongfei Yue1, Aiguo Fang2, Sudong Hua1,*, Zenghuan Gu3, Yu Jia1, Cheng Yang4
Journal of Renewable Materials, Vol.10, No.8, pp. 2247-2261, 2022, DOI:10.32604/jrm.2022.018901
Abstract A phosphogypsum-based subgrade stabilizer (PBSS) was formulated using industrial by-product phosphogypsum
(PG), mixed with slag and calcium-silicon-rich active material (GSR). The active powder (AP) was used to modify
PBSS, and PBSS-AP was obtained. PBSS and PBSS-AP were each mixed with 10% silty soil, and cement and lime
(CAL: 5% lime + 2% cement) were used as the traditional material for comparative experiments. Samples were
cured under standard conditions, and tested for unconfined compressive strength (UCS), water stability, volume
expansion, and leachate, to explore the stabilization effect of the three solidified materials on silty soil. The results
showed that the comprehensive… More >
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