HUMBOLDT H-4134 Concrete Pocket Penetrometer

Humboldt H-4134 concrete pocket penetrometer is designed for laboratory and field evaluation of the starting set of concrete mortars and special roof mixes.

Features:

• This lightweight, spring action concrete pocket penetrometer features calibrated pressure range of 0 to 700 psi. However, the initial set of concrete is achieved when the penetration resistance is 500 psi.
• It has a plunger with 1/20 sq.inch tip area for perfect penetration.
• The scale of the unit is indicated with pressure resistance.

Compatible Accessories:

• Humboldt H-4134F Penetrometer Foots: They determine board life and initial consistency of masonry mortars. These units have stainless steel disks having a diameter of 2.7 inches.

Standards and Approvals:

• ISO 9001:2015
• ASTM C780
• ASTM C403

Frequently Asked Questions:

Q. What does 'initial set' of concrete imply?

A. The initial set is the partially hydrated, semi-hardened condition of concrete, beyond which it cannot be consolidated by vibration.

Q. What is the psi resistance test?

A. The PSI resistance test is used to determine the hardness of concrete. It considers the effects of variables including cement, temperature, additions, mixture proportions and admixtures upon the time of hardening and setting of concrete.