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Sound absorption coefficient of coal bottom ash concrete for railway application

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Figure

Table 2. Proportion of concrete mix design for 0.012 m3 of concrete samples for both cube shape and cylinder shape sample
Figure 2. Sound absorption coefficient of the CBA concrete mixture at low frequency.
Figure 3. Sound absorption coefficient of the CBA concrete mixture at high frequency.
Table 5. The sound absorption coefficient of the coal bottom ash concrete mixture base on its percentages for high frequency.
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