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The Influence of Rice Husk Ash Addition on the Properties of Metakaolin-Based Geopolymers

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Figure

Fig. (1). XRD trace of starting kaolin.
Fig. (2). XRD trace of dehydroxylated kaolin after 2 hours at 750°C (1322°F).
Fig. (4). XRD trace of RHA obtained from calcination of RH for 2 hours at 750°C or 1322°F).
Table 1. Chemical analysis (main oxides) of the raw materials used analyzed by x-ray fluorescence (XRF).
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