Prism Testing

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Prism testing provides a means of verifying the delayed expansion of cement caused by hydration. Evaluates compressive strength characteristics of in-place masonry construction through testing of prisms obtained on site. Prism molds produce the required 10″ effective gauge length prism test bars. The molds feature removable partitions, base and end plates. Length comparators measure the length changes of hardened cement paste, mortar and concrete prismatic specimens. Accommodating test specimens with up to 4″ x 4″ cross sections. The cement autoclave uses accelerated means of estimating delayed expansion of Portland cement caused by hydrations of CaO and MgO. The test bars control steam pressure and corresponding constant temperature.

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Prism Testing

Digital Length Comparator

Demolding Device for Prism Molds

Cement Autoclave

Digital Length Comparator

Dial Length Comparator – 10″ Dial Length Comparator

Retaining Cage

Test Bar Holder

Round Mortar Bar Container

Rectangular Mortar Bar Container

Gauge Studs

Prism Molds

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