Only a mix made and used on the site can guarantee that all properties of the concrete are satisfactory in every detail for the particular job in hand. A Laboratory trial mix does not provide the final answer even when the moisture condition of aggregates are taken into account. The materials used are essentially variable and many of their properties cannot be assessed truly quantitatively. It should be explained that an exact determination of mix proportions by means of table or computer data is generally not possible. Concrete mix design is the process of choosing suitable ingredient of concrete and determining their relative quantities with the object of producing as economically as possible concrete of certain minimum properties, notable workability, strength and durability. This Free Concrete Mix Design Excel Sheet has been sent by Mr. Free Concrete Mix Design Excel Sheet By Gulfam Akram
