Gilson HM-259 Prism Mold, 3x3x10", 1-Gang


Price $256.98
Estimated delivery in 1-2 weeks after ordering
* Estimate is for US customers only.
* Shipping and Import Duties are calculated at checkout.

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HM-259 Single Prism Mold, 3x3x10in (76x76x254mm) forms 10in effective gauge length prism test bars. Testing applications include potential alkali reactivity, expansion, and 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 required length of 10in (254mm) between ends of HM-268 Gage Studs cast in ends of bars. Dimensions from outside end of gage studs are 11.625in (296mm) with specimen cross sections of 3x3in (76x76mm).


  • Made of corrosion-resistant steel
  • Suited for testing different types of concrete material

Included Items:

  • Single Prism Mold, 3x3x10in

Accessories (Sold Separately):

Meets Standard(s):
ASTM C227, ASTM C1260, ASTM C1012/1012M, ASTM C151/151M, ASTM C157/157M, ASTM C490/490M, AASHTO R 70M/R 70, AASHTO T 107M/T 107
Prism Mold, 3x3x10", 1-Gang

Gilson HM-259 Prism Mold, 3x3x10", 1-Gang