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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (6): 2002-2010.DOI: 10.16552/j.cnki.issn1001-1625.2025.1164

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

Influence of Limestone Powder on Properties of Sulphoaluminate Cement-Based Grouting Material

ZHAO Feifei1(), ZHANG Haibo1(), CHAI Hucheng2   

  1. 1.School of Materials Science and Engineering,Henan Polytechnic University,Jiaozuo 454003,China
    2.Henan Danate New Material Technology Co.,Ltd.,Jiaozuo 454100,China
  • Received:2025-11-21 Revised:2026-01-11 Online:2026-06-15 Published:2026-07-14
  • Contact: ZHANG Haibo

Abstract:

To address the issues of rapid heat release, unstable setting and hardening time, and relatively high cost in sulfoaluminate cement-based grouting material (SCGM), and to further promote the resource utilization of manufactured sand stone powder and the development of green building materials, this study investigated the effect of stone powder on the fluidity, bleeding rate, setting time, and compressive strength of SCGM. The underlying mechanism of stone powder on the workability of SCGM was explored using micro-testing techniques such as XRD, SEM, TG-DTG, and NMR. The results indicate that stone powder promotes the hydration of SCGM, enhances its 28 d mechanical properties, and fills material voids. When the stone powder content is 5%(mass fraction), compared with the reference sample without stone powder, the 3 d compressive strength of SCGM decreases by 11.4%, while the 28 d compressive strength increases by 10.5%, and the porosity decreases by 10.3%. Additionally, stone powder improves the fluidity of SCGM and extends its setting time.

Key words: sulphoaluminate cement, grouting material, stone powder, hydration process, pore structure

CLC Number: