| http://www.w3.org/ns/prov#value | - At least three different gradations of the proposed mix are evaluated in the Superpave mix design to select the gradation which has the strongest aggregate skeleton.Special Bituminous MixesStone Matrix Asphalt Stone matrix asphalt (SMA) was developed in Germany in the mid 1960 and it has been used very successfully by many countries including US as a highly rut-resistant bituminous course, both fo
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