Concrete Pocket Penetrometer

Lightweight, spring-reaction type concrete penetrometer for field and lab evaluation of the initial set of concrete mortar, based on ASTM C403. Penetration plunger has a 1/20 sq. in. tip area. Plunger is steadily pushed into the mortar to a 1 in. depth, as indicated on the shaft, at periodic time intervals. Penetrometer’s calibrated range is 0-700psi. Resistance in psi is indicated on the scale. The term “initial set” is the semi-hardened, partially hydrated condition of the concrete beyond which it can no longer be worked. The point of initial set is reached when the penetration value is 500psi. Meets ASTM C780.

Concrete Pocket Penetrometer, w/ Dial

Concrete Pocket Penetrometer, w/ Dial

Foot for above Penetrometers

For use with masonry mortars to determine board life and initial consistency. Method can be used as a basis for acceptance of mortars. Stainless steel disk, 2.70" (68.58mm) dia. Meets ASTM C780.

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