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Information Journal Paper

Title

EFFECT OF SILICA FUME ON THE CHARACTERIZATION OF THE GEOPOLYMER MATERIALS

Pages

  1-10

Abstract

 The influence of SILICA FUME (SF) addition on properties of GEOPOLYMER materials produced from alkaline activation of alumino-silicates METAKAOLIN and WASTE CONCRETE produced from demolition works has been studied through the measurement of compressive strength, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy (SEM) analysis. Alumino-silicate materials are coarse aggregate included WASTE CONCRETE and fired kaolin (metakaolin) at 800oC for 3 h, both passing a sieve of 90mm. Mix specimens containing SILICA FUME were prepared at water/binder ratios in a range of 0.30 under water curing. The used activators are an equal mix of sodium hydroxide and silicate in the ratio of 3: 3 wt.%. The control GEOPOLYMER mix is composed of METAKAOLIN and WASTE CONCRETE in an equal mix (50: 50, wt.%). WASTE CONCRETE was partially replaced by SILICA FUME by 1 to 10 wt.%.The results indicated that compressive strengths of GEOPOLYMER mixes incorporating SF increased up to 7% substitution and then decreased up to 10% but still higher than that of the control mix. Results indicated that compressive strengths of GEOPOLYMER mixes incorporating SF increases up to 7% substitution and then decreases up to 10% but still higher than the control mix, where 7% SF-digested calcium hydroxide (CH) crystals, decreased the orientation of CH crystals, reduced the crystal size of CH gathered at the interface, and improved the interface more effectively.

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    Cite

    APA: Copy

    KHATER, HISHAM M.. (2013). EFFECT OF SILICA FUME ON THE CHARACTERIZATION OF THE GEOPOLYMER MATERIALS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 5(-), 1-10. SID. https://sid.ir/paper/319729/en

    Vancouver: Copy

    KHATER HISHAM M.. EFFECT OF SILICA FUME ON THE CHARACTERIZATION OF THE GEOPOLYMER MATERIALS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2013;5(-):1-10. Available from: https://sid.ir/paper/319729/en

    IEEE: Copy

    HISHAM M. KHATER, “EFFECT OF SILICA FUME ON THE CHARACTERIZATION OF THE GEOPOLYMER MATERIALS,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 5, no. -, pp. 1–10, 2013, [Online]. Available: https://sid.ir/paper/319729/en

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