Grout Sample Box

The Grout Sample Box has been proven to yield comparable compressive strength values to samples cast by the traditional ASTM C1019 method using concrete masonry units; but saves you time and money. Slotted corrugation retains moisture and closely simulates CMU absorption rate. Single-use cardboard box acts as mold and transport container, it stores flat and takes seconds to put together for molding. Each box yields 4 consistent mortar specimens 3 x 3 x 6 in (7.6 x 7.6 x 15.2) cm. Ships 25 boxes per carton.