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HM-255 2x2x10in (51x51x254mm) 2-Gang Prism Mold is used in length-change testing of Portland cement paste, mortar or concrete, as well as in evaluating hydraulic hydrated lime for structural purposes. The mold is equipped with a base plate, removable partitions and end plates of corrosion resistant steel to provide required length between ends of HM-268 Gage Studs cast in ends of bars. Outside specimen length is 11.25in (286mm).
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