Rock-solid technology

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Later, the recipe was refined and is still used to this day.

Concrete made with Portland cement is superior to that made from natural cement because it is of more consistent quality, and is stronger and more durable.

Today, there are several types of concrete, defined by methods of installation. Ready or pre-mixed concrete is batched and mixed at a central plant before it is delivered to site.

Because this type of cement is generally delivered in a mixer truck it is also referred to as transit-mixed concrete. Shrink mixed concrete is partly mixed at the central plant, and partly in the truck later.

Process Control

As with new-style quarry crushing plants, the application of process control is perhaps the most crucial step in increasing plant efficiency.

This involves installing computer equipment with specially written software to automatically adjust the mix as it is pumped through the machine.

The computers are linked to various electronic valves and servos throughout the plant and an algorithm what is needed and where to produce the required perfect product.

Majed Chahla, Sales, HST said; "Process control is the modern way. It is many times more efficient than before."

Measuring devices

The moisture in the concrete mix needs to be kept under careful control, otherwise the amount of aggregates going into the mix will be wrong as the weight of the water will give a false indication of how much volume there really is.

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