OptiMoist – aggregate moisture measuring

Tecwill’s “flying” aggregate weighing and dosing system, together with OptiMoist moisture measuring system, allows the moisture content of all aggregate fractions to be measured by one common moisture probe.

This probe can be an optical non-contacting probe or microwave skid-probe. The probe measures the moisture content of each fraction one by one and transfers moisture data to the batch control system.

The batch control system can easily calibrate the probe for different stones and sands.

To ensure the moisture content of zero slump or low slump concrete, a special moisture probe can be installed in the mixer. Based on the probe data, water can be added to the concrete mixer, and the moisture content can be adjusted as desired.

Zero slump concrete is used in hollow-core slabs, paving stones, concrete blocks and masonry products.

Exact moisture content is important. Even a small mistake in the water amount can create quality issues and tone variations.

Self-consolidating concrete (SCC) normally uses a dry-mix procedure. With Tecwill’s improved aggregate moisture control and mixer moisture control, SCC can also use a wet-mix procedure.

Self-consolidating concrete or self-compacting concrete is a highly “liquid” mix that flows easily and compacts under its own weight. A high-range superplasticizer with a water-reducing admixture is used in the mix.

The traditional mixing method is to first mix the dry ingredients – cement and aggregate – and then adjust the batch moisture. Next, water and a superplasticizer are added. This method’s mixing time is very long, reducing plant capacity and increasing mixer wear.

Tecwill’s wet method improves moisture control. The artificial intelligence-controlled dosing and weighing system ensures accurate material amounts for each concrete batch. The mixing uses the so-called “wet mixing” method, which shortens mixing time and improves capacity.