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Device for the standard-compliant testing of the expansion of Le Chatelier moulds without permanent deformation (resilience) according to EN 196-3. The device consists of a solid base plate onto that a stand is mounted. The stand has a clamping device to clamp the Le Chatelier moulds and has an adjustable scale to measure the expansion of the mould. A weight and a key ring chain with a total mass of 300 g are part of the delivery. Key benefits for the user: ✓ Adjustable scale for the adaption to the indicator needles ✓ Easy, user-friendly handling ✓ Solid design made of aluminum
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Application For the determination of the volume consistency of cement in accordance with DIN EN 196-3. Design The ring consists of a fexible sheet body, made of copper-zinc alloy, with two measuring needles. Working Principle The slightly oiled ring is placed onto a glass plate, manually filled with standard compliant cement paste and covered with a second glass plate on which a weight of approx. 50 grams is placed. Then the ring is exposed to a standard climate. After the setting of the cement paste the spread of the ring is measured at the end of the measuring needles.
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The Water Bath ToniCHAT allows the standard-compliant, controlled boiling of binding agent samples (i.e. Le Chatelier moulds) for the determination of the volume stability or rate of risk regarding a subsequent extension of the binding agent (cement) caused by hydration. The ToniCHAT corresponds exactly to the requirements of the standard EN 196-3 and performs an autonomous and controlled test cycle. Key benefits for the user: ✓ Permanent indication of target / actual temperature ✓ Temperature control with an exactitude of 0.1°C ✓ Capacity for up to 16 Le Chatelier Rings ✓ Test execution optionally under water or steam ✓ Fully automatic test cycles according to defined parameters ✓ Controlled test procedure for accurate reproducible test results ✓ Integrated drain hose for an easy and fast water change ✓ Heating up from 20°C to 100°C within 30±5 minutes ✓ Stabilization of boiling temperature for three hours
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Application Preparation of prism shaped samples, 40x40x160 mm made of mortar, especially cement mortar in accordance with the standards EN 196 1, ISO 679, DIN EN 12808 4, EN 1015 11 and ASTM C 348. Advantages
- The bars and end pieces are individually marked to ensure a perfect fit
- The design of the base plate and surface grinding avoids deformation of the mould in the long term
- The special steel used ensures the prescribed dimensional stability in the long term when using brass rulers
- The mould can be supplied with or without bores for the shrinkage test
