Penetration Resistance Apparatus for the determination of
the initial and final setting time of mortar sieved from fresh
concrete and grouts.
Spring-reaction-type apparatus, graduated from 45 to 580N
in increments of 10N for testing rate of hardness of concrete
Determines effects of variables such as temperature, cement,
mixture proportions, additions and admixtures upon the time
of setting and hardening of concrete.
Penetration resistance is measured by the downward vertical
force exerted to penetrate the mortar 25mm.
Pressure reading is measured by a scale with a sliding ring
indicator on the handle’s stem. Includes six interchangeable
penetration resistance needles and tightening bars:
4.5mm, 6.5mm, 9.0mm, 14.0mm, 20mm and 28mm diameter.
Civilab manufactured in Australia with an hand carved wooden
box.
