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Grout Sample Box (GSB) meets requirements of in ASTM C1019 and UBC 21-18, but avoids expensive and time-consuming construction of block, spacers and filter paper. The GSB protects and forms field samples and doubles as a shipping container. Slotted, corrugated material closely duplicates absorption characteristics of concrete masonry units and samples yield proven compressive strength values comparable to traditional molding methods. Due to the uniform size and surface characteristics of the GSB, laboratory tests are 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 3x3x6in (76x76x152mm) mortar samples. 25 boxes per carton. Optional Grout Sample Box Fixture is avalable to reinforce cardboard sidewalls.
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