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Setting and strength characteristics of alkali-activated carbonatite cementitious materials with ground slag replacement

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Abstract

The effect of the ground granulated blast-furnace slag (GGBFS) addition, the modulus n (mole ratio of SiO2 to Na2 O) and the concentration of sodium silicate solution on the compressive strength of the material, i e alkali-activated carbonatite cementitious material (AACCM for short) was investigated. In addition, it is found that barium chloride has a satisfactory retarding effect on the setting of AACCM in which more than 20% (by mass) ground carbonatite was replaced by GGBFS. As a result, a cementitious material, in which ground carbonatite rock served as dominative starting material, with 3-day and 28-day compressive strength greater than 30 MPa and 60 MPa and with continuous strength gain beyond 90 days was obtained.

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Authors and Affiliations

  1. College of Chemistry Science, South China University of Technology, 510640, Guangzhou, China

    Zhao Sanyin Ph D Candidate (Assoc.Prof), Yu Qijun Ph D, Qiao Fei, Huang Jiaqi, Yin Suhong, Wen Ziyun & Gu Guobang

  2. Department of Chemistry, Shaoguan College, 512005, Shaoguan, China

    Zhao Sanyin Ph D Candidate (Assoc.Prof), Yu Qijun Ph D, Qiao Fei, Huang Jiaqi, Yin Suhong, Wen Ziyun & Gu Guobang

  3. Key Laboratory of Specially Functional Materials and Advanced Manufacturing Technology of Ministry of Education, South China University of Technology, 510640, Guangzhou, China

    Zhao Sanyin Ph D Candidate (Assoc.Prof), Yu Qijun Ph D, Qiao Fei, Huang Jiaqi, Yin Suhong, Wen Ziyun & Gu Guobang

Authors
  1. Zhao Sanyin Ph D Candidate
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  2. Yu Qijun Ph D
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  3. Qiao Fei
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  4. Huang Jiaqi
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  5. Yin Suhong
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  6. Wen Ziyun
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  7. Gu Guobang
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Corresponding author

Correspondence to Yu Qijun Ph D.

Additional information

Supported by the National “863” Research Project of China (No. 2002AA335050),the National Natural Science Foundation of China(No. 50409011) and the High-level University Construction Project of South China University of Technology (No. B09-224)

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Sanyin, Z., Qijun, Y., Fei, Q. et al. Setting and strength characteristics of alkali-activated carbonatite cementitious materials with ground slag replacement. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 21, 125–128 (2006). https://doi.org/10.1007/BF02861489

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  • DOI: https://doi.org/10.1007/BF02861489

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