concluded that the SiO 2 /Al 2 O 3 ratio of metakaolin-based AAM showed a decreasing trend in compressive strength when it was increased from 3.5 to 4.5 [ 111 ].
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concluded that the SiO 2 /Al 2 O 3 ratio of metakaolin-based AAM showed a decreasing trend in compressive strength when it was increased from 3.5 to 4.5 [ 111 ].