Polarmoist™: Sustainable Aggregate Moisture Sensors for Concrete Mix Designs
Accurately measure the moisture content in both fine and coarse aggregates utilizing state-of-the-art technology while saving time and money in the process. Critical water-to-cement ratio determines the strength, durability and shrinkage properties of the concrete in so that the moisture content must be known to the sheer percentage fraction.
The Polarmoist™ aggregrate moisture sensor is an optical sensor designed for measuring the surface moisture content of the concrete aggregates - without physical contact with the aggregates. The sensor embeds a micro-processor and it uses LEDs as light sources. Moisture content is determined as percentage of water by weight of dry aggregates. The contactless remote measurement guarantees extremely stable performance and a lifelong sensor. The sensor is most optimal when installed at the clam gate or by bin feeder bottoms to detect moisture content in the batch of aggregates to be weighed and about to be mixed.
The Polarmoist™ system has been extensively tested in concrete batch plants with different aggregate grade sizes. By proper calibration, the accuracy of measuring the water content outperforms handmade reference measurements especially in the case of a limited number of samples and a large variation of moisture in a given batch. Polarmoist™ has a selectable analog signal output and a 24 VDC power supply voltage enabling easy integration to existing batch plant control systems. One-time calibration per material is typical. You can switch the materials in aggregate bins without re-calibrating the sensors, provided the calibration for the chosen material has been done earlier. The installation of the sensor is simplified using a pre-wired junction box and plug-in connectors. It is easy to install and the sensor protection tube with air fitting is durable and keeps the sensor clean even in dusty, cold or humid environments.
Polarmoist™ is based on long-lasting LED technology. Experience stable operation and contactless measurement as there is no physical contact with the aggregates, thus no wear of the sensor. The exact moisture content is known prior to mixing, which leads to shorter mixing times and less wear of the actual mixer. Optimize your valuable time by saving with the sustainable Polarmoist™ system.
You can now conveniently order the Polarmoist™ Aggregrate Moisture Sensors for your sustainable concrete needs from our webshop shop.polarmatic.com.