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WAX may materially affect the properties of an asphalt, and the magnitude of the effect will depend upon the specific nature of the wax and the amount present.A small quantity of wax which has a strong tendency to separate in large crystals will be decidedly more noticeable visually than a considerably larger quantity of a microcrystalline or amorphous wax, or one having a greater solubility in the asphalt. Consequently, a reliable procedure capable of evaluating both the character and quantity of wax present in an asphalt is desirable. Recent publications 19

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