Gypsum

Gypsum was formed by sedimentary deposition processes. In order to use gypsum as a building material, the crushed and ground gypsum is dried in a kiln. Depending on the temperature of the kiln, different building gypsums for different properties are produced. Burned gypsum as a dry, powdery product is used as a binder, for example, in plaster or screed. Before processing, these dry products are mixed again with water.

Gypsum, plaster and gypsum screed but also gypsum boards, essentially consist of building gypsum (binding agent) and sand.

Gypsum is also added to the cement and acts as a setting retarder during the hardening of the concrete.

Toni Technik offers an extensive range of solutions in the field of binding agent testing for the building material industry as well as for the R&D sector. In order to test compressive strength; which is in most cases below 100 kN our ToniZEM can be used.  The setting time can be determined according to EN 13279-2 or ASTM C 472 with our automatic Vicat devices.

Testing Machines

Testing Instruments

Software

Measurement & Control

Testing Instruments

for Gypsum

MORTAR MIXER TONIMIX

The ToniMIX is equipped with an automatic water dosing device and an automatic sand feeding device.

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Automatic Air Pemeability according to Blaine BSA II

AUTOMATIC AIR PERMEABILITY BSA II

Automatic air permeability tester according to Blaine for the determination of the specific surface (grinding fineness / Blaine value) of cement and other powdered materials

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ToniPERM II

TONIPERM II

Automatic air permeability tester for the determination of the specific surface (grinding fineness / Blaine value) of powdered materials.

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Manual Air Permeability Tester

MANUAL AIR PERMEABILITY TESTER

Manual air permeability tester according to Blaine for the determination of the specific surface (grinding fineness / Blaine value) of cement and other powdered materials

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Automatic Vicat Needle Instrument - PA1/PA2

AUTOMATIC VICAT NEEDLE INSTRUMENT – PA1/PA2

Provides one measuring station for the determination of the setting characteristics of cement, gypsum and mortar

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ToniSET Compact

SETTING TIME (VICAT) – TONISET COMPACT

Provides eight measuring stations for the determination of the setting characteristics of cement, gypsum and mortar

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Model 1807

MANUAL VICAT NEEDLE INSTRUMENT – MODEL 1807

Manual Vicat needle instrument with one measuring station for the determination of the setting time of gypsum, cement or mortar

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