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Field samples are efficiently molded, protected and shipped, all in one container. Cardboard material duplicates absorption characteristics of concrete masonry units and compressive strength values are comparable to traditional molding methods, as well as much more consistent and repeatable. Single-use cardboard boxes ship and store flat, taking only seconds to set up for molding. Each box yields four 3.125x3.125x6.25in (79x79x159mm) mortar samples. 25 boxes per carton. Optional HMA-349 Grout Sample Box Fixture, available separately, reinforces the sidewalls of the cardboard GSB to maintain square shape, and ventilated steel construction allows excess moisture to escape.
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