It could be seen that the quality of all samples showed an increasing trend before 20 freeze–thawing cycles.
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Investigating on the Pavement Performance of Multi-Source Solid Wastes by Cement and Fly Ash.
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The sentences
Moreover, the average ITS growth rates of the mixtures at 28, 56, and 90 days were 44.3%, 22.3%, and 14.4%, respectively, showing a decreasing trend.