Design mix concrete for foundation without extreme weather exposure. The require compressive strength is 25 MPa and slump is 90 mm, w/c ratio is 0.45. Determine the proportion of mix design and weights of materials after correction cause to moisture content in aggregates using volume method. The ingredients of materials as shown below: Fine Aggregate (Sand) Properties Max. Agg. Size Fineness Modulus Coarse Aggregate (Gravel) 25 mm -- 2.8 -- Absorption % Specific Gravity R.H. % 0.7 0.7 2.64 2.68 6. Bulk Density (Dry) kg/m³ 1600 1600

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Asphalt Binders and Mixtures

Asphalt binders are subsidiary products procured during the refining process of petroleum while manufacturing gasoline, diesel, and similar petroleum products. Asphalt binders are obtained from the residue that remains after the distillation of petroleum, this residue is further subjected to steam distillation and oxidation to remove the traces of gas oil present in the residue. Certain additives or modifiers are also added to asphalt binders to alter them to suit different applications.