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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2024, Vol. 43 ›› Issue (5): 1796-1811.

Special Issue: 水泥混凝土

• Cement and Concrete • Previous Articles     Next Articles

Research Progress in Dispersion Technology and Characterization Methods of Carbon Nanomaterials in Cementitious Materials

LI Yuyang1,2, ZHAO Lige3, LIU Shuang1,2, HAN Kang1,2, LIU Yanjun1,2, LI Runfeng1,2, ZHENG Yongchao1,2   

  1. 1. Beijing Building Materials Academy of Sciences Research, Beijing 100041, China;
    2. State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing 100041, China;
    3. BBMG Housing Industrialization (Tangshan) Co., Ltd., Tangshan 064108, China
  • Received:2023-11-02 Revised:2023-12-20 Online:2024-05-15 Published:2024-06-06

Abstract: Carbon nanomaterials have received extensive research and attention because of unique structure and excellent performance to be used as reinforcing materials to improve the performance of cementitious materials. However, the enhancement effect is based on the good dispersion of carbon nanomaterials in the cement. The large specific surface area and strong intermolecular forces of carbon nanomaterials make them difficult to be dispersed in the cement matrix, and the dispersion effect is difficult to judge. This paper systematically sorts out the mechanism of common carbon nanomaterials agglomeration in cementitious materials, summarizes the dispersion techniques adopted by scholars in recent years, analyses the mechanism, advantages and disadvantages of various dispersion methods in detail, and lists the characterization methods for the dipersion effect of carbon nanomaterials in cementitious material. In the future, the research should focus on the development of more efficient and suitable dispersion methods for industrialized production, and the means of evaluating the real dispersion state of carbon nanomaterials in the cement matrix, which can facilitate the scale-up of nanocarbon-modified cementitious composites for application in real engineering projects.

Key words: carbon nanomaterial, cementitious material, agglomeration, dispersion, modification, characterization method

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