The Loss on Ignition (LOI) test in cement analysis is a crucial method for assessing the quantity of volatile materials within cement samples. In this process, a specific amount of the cement sample is heated at high temperatures to drive off volatile components such as carbonates, organic matter, and chemically combined water.
During the heating process, these volatile materials are expelled, leaving behind the non-volatile residue, primarily cementitious materials like silicates and aluminates. The weight difference before and after heating represents the loss of volatile components, expressed as a percentage of the initial weight of the sample.
The LOI test is essential in cement quality control, providing insights into the composition and stability of cement, aiding in optimising production processes, and ensuring the final cement product meets industry standards and performance requirements.
| Temperature | Ambient to 1100 °C |
| Temperature Control Precision | ±2% (or) ±2deg C |
| Accuracy | ±2deg C of tolerance limit |
| Ramp Rate | 10deg C /minute to 50deg C /minute |
| Balance | Integrated balance |
| Resolution | 0.0001g (0.1mg) |
| Readability | 0.0001g (0.1mg) |
| Sample Size | up to 5 grams (Higher range can be offered on request) |
| Number of Samples | 19 Samples +1 Reference |
| Number of Carousels | one for Crucibles and Crucible lids |
| Carousel Material | The carousels are made of special material which are not susceptible to warping under high temperature stress |
| Weighing Precision | 0.02% RSD (on inert Samples) |
| Gas Connection | Oxygen & Nitrogen, Compressed Air |
| Power Supply | 230V AC ± 10%; 50/60Hz/15A |
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22-200000: TGA 1500, Thermogravimetric Analyzer with Single Furnace
23-220000: TGA 1500D, Thermogravimetric Analyzer with Dual Furnace
22-100146: Ceramic Crucible, PK/1
22-112255: Metal Carousel, 20 Positions, Crucibles
22-107373: Ceramic Carousel, 20 Positions, Lower
