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Organic additive implantation onto cement hydration products

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Abstract

In polymer modified cementitious materials, it is hard to set up a chemical connection between the added polymer and the cement moiety. In this study FS (functional silane) was adopted to form this connection as a bridge component which has the functional group forming bonds with polymer. To testify the connection between FS and cement moiety, Q 2/Q 1 ratio (Q x: intensity ratio) investigation was carried out by the means of quantitative solid state 29Si MAS NMR. The results show that the Q 2/Q 1 ratio has increased with the addition of FS which indicates that the silicon chain length has increased, and the quantity of silicon atoms at site of Q 2, chain site, has enhanced, showing that the silicon atom of FS has connected to the silicon chain of cement moiety by the bond “-Si-O-Si-” formation.

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Authors and Affiliations

  1. Department of Civil Engineering, The Hong Kong University of Science & Technology, Hong Kong, China

    Jipeng Zhu  (朱吉鹏) & Zongjin Li  (李宗津)

  2. School of Transportation, Southeast University, Nanjing, 210096, China

    Ruochong Yang

  3. School of Materials Science and Engineering, Southeast University, Nanjing, 210096, China

    Yamei Zhang

Authors
  1. Jipeng Zhu  (朱吉鹏)
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  2. Zongjin Li  (李宗津)
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  3. Ruochong Yang
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  4. Yamei Zhang
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Corresponding author

Correspondence to Zongjin Li  (李宗津).

Additional information

Funded by the National Basic Research Program of China (973 Program(No.2009CB6232007)

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Zhu, J., Li, Z., Yang, R. et al. Organic additive implantation onto cement hydration products. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 29, 527–533 (2014). https://doi.org/10.1007/s11595-014-0952-1

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  • DOI: https://doi.org/10.1007/s11595-014-0952-1

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