The Amerimix Mortar S Grey 80lb is a factory blend of masonry cement and dried sand specially formulated to provide consistently excellent water retention, exceptional workability and superior bond in every bag. Forget the hassle of traditional sandpile mixing and choose Amerimix�s masonry cement and sand mortars for your next project! Uses: Interior or exterior applications, Above grade, Load bearing or non-load bearing construction, Laying or resetting brick, block or stone.