Abstract
The fluidity and strength are key indicators in the soil solidification process using cement, fly ash (FA), and super-absorbent polymer (SAP), as they are crucial for ensuring effective engineering construction. However, these two indicators are difficult to reconcile in dosage of cement, FA and SAP, especially in the solidification of dredged clay with high water content. This paper explores the relationship between the fluidity of solidifying soil and the strength of solidified soil when mixed with cement, FA, and SAP. The findings indicate that the increased dosage of cement, FA, and SAP results in reduced fluidity and increased strength. This is primarily attributed to that the hydration reaction of cement, the pozzolanic reaction of FA, and the water absorption of SAP contribute to the thinning of water films, enhancement of cementation bonding, and reduction in pore volumes. Based on this effect, a comprehensive prediction model for fluidity and strength is proposed. This model is expected to offer valuable guidance for designing and predicting the fluidity and strength of dredged clay with high water content.
Published Version
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