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What is the difference between a sack mix and a performance mix?

April 26, 2017difference mix PERFORMANCE Sack

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What is the difference between a sack mix and a performance mix?

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A sack mix uses Portland cement for strength. The amount of cement used in the mix is specified by the purchaser. 5.0 sack, 5.5 sack or 6.0 sack will specify the weight of cement used in each yard of concrete. A sack of cement is defined as 94 lbs. so a 5.5 sack mix will contain 5.5 x 94 or 517 lbs. of cement per cubic yard. More cement will generally make stronger concrete. More cement will always make a faster setting concrete. If the option of a sack mix is selected, the producer is only responsible for supplying the prescribed weight of cement in the mix.