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Single Prism Mold, 3x3x10in (76x76x254mm) forms 10in effective gauge length prism test bars. Testing applications include potential alkali reactivity, expansion, volume, length, and linear change. It is also used with a Length Comparator to measure Portland cement paste, mortar, and concrete prism samples.
The mold has a base plate, removable partitions, and end plates constructed of corrosion-resistant steel to provide the required length of 10in (254mm) between ends of HM-268 Gauge Studs cast on ends of bars. Dimensions from the outside end of Gauge Studs are 11.625in (296mm) with specimen cross-sections of 3x3in (76x76mm).
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