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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (2): 503-516.DOI: 10.16552/j.cnki.issn1001-1625.2025.0815

• Solid Waste and Eco-Materials • Previous Articles     Next Articles

Review on Solidification Mechanism and Performance Regulation of Fluidized Solidified Soil

SHU Chang1(), CHEN Zhenzhong2, WANG Wei2, MEI Youjing3, WANG Ningning4, ZHANG Yamei2()   

  1. 1. Changzhou Metro Group Co. ,Ltd. ,Changzhou 213001,China
    2. School of Materials Science and Engineering,Southeast University,Nanjing 211189,China
    3. Nanjing Institute for Intelligent Additive Manufacturing Co. ,Ltd. ,Nanjing 211806,China
    4. Jiangsu Sanhejian Environmental Technology Research Institute Co. ,Ltd. ,Nanjing 210043,China
  • Received:2025-08-12 Revised:2025-10-15 Online:2026-02-20 Published:2026-03-09
  • Contact: ZHANG Yamei

Abstract:

In recent years, fluidized solidified soil has become a research hotspot in the domestic and international building materials field due to its advantages of high fluidity, high efficiency and low cost. This paper reviews the commonly used solidification agents and solidification mechanisms of fluidized solidified soil, with a focus on evaluating the potential of utilizing various industrial wastes to partially replace traditional Portland cement in the preparation of fluidized solidified soil. From the perspective of fluidity regulation, the water-to-solid ratio is a key indicator affecting fluidity. It can be specifically regulated by the liquid limit of soil and the water demand for standard consistency of cementitious materials. The incorporation of polycarboxylate superplasticizer and fly ash can significantly improve fluidity. From the perspective of mechanical properties regulation, the addition of early strength agent such as CaCl2 or industrial wastes like red mud and carbide slag can effectively promote the hydration reaction of cementitious materials and fill pores. Meanwhile, inducing the formation of ettringite in the system can accelerate water consolidation and enhance hydration efficiency. From the perspective of bleeding regulation, optimizing particle gradation and incorporating red mud can effectively inhibit the bleeding phenomenon. In the long term, it is necessary to comprehensively evaluate the solidification agent scheme and its comprehensive benefits from the aspects of regionality of materials, soil source properties, solidification effect, economy, low-carbon and safety.

Key words: fluidized solidified soil, industrial waste, solidification mechanism, performance regulation, fluidity, mechanical property

CLC Number: