• Bulletin of the Chinese Ceramic Society
  • Vol. 44, Issue 5, 1939 (2025)
KONG Aisan1, QIAN Sijia2, WANG Wei2, MA Xukun2, and LI Na2,*
Author Affiliations
  • 1College of Architecture and Design Art, Shaoxing Vocational and Technical College, Shaoxing 312000, China
  • 2School of Civil Engineering, Shaoxing University, Shaoxing 312000, China
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    DOI: 10.16552/j.cnki.issn1001-1625.2024.1239 Cite this Article
    KONG Aisan, QIAN Sijia, WANG Wei, MA Xukun, LI Na. Shear Strength Characteristics of Cement Soil Modified with Polypropylene Fiber and Carbonation Curing Technology[J]. Bulletin of the Chinese Ceramic Society, 2025, 44(5): 1939 Copy Citation Text show less

    Abstract

    In this study, the effect of polypropylene fiber (PPF) collaborative carbonation curing technology on the 7 d shear strength and failure mode of cement soil was discussed. The shear properties and carbon sequestration characteristics of cement soil with different PPF content and different curing conditions were tested by triaxial shear test, phenolphthalein method and thermogravimetric analysis. The results show that under the standard curing condition, the shear strength of cement soil increases with the increase of PPF content, and reaches the maximum value of 2 174 kPa when the fiber content is 0.9% (mass fraction). Under the carbonation curing condition, the shear strength of cement soil increases first and then decreases with the increase of fiber content, and reaches the maximum value of 4 477 kPa when the fiber content is 0.6%. Compared with standard curing, carbonation curing has a certain improvement effect on cohesive force, but the improvement effect on internal friction angle is more significant, and the internal friction angle is less affected by fiber content. The average carbonization depth of the sample cured for 7 d is 0.85 mm, and the carbon sequestration amount is 2.5% (mass fraction).
    KONG Aisan, QIAN Sijia, WANG Wei, MA Xukun, LI Na. Shear Strength Characteristics of Cement Soil Modified with Polypropylene Fiber and Carbonation Curing Technology[J]. Bulletin of the Chinese Ceramic Society, 2025, 44(5): 1939
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