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UNDERSTAND CONCRETE

Design your Concrete Mix

What is concrete?

Contrary to popular belief, concrete and cement are not the same thing; cement is just a component of concrete. Concrete is made up of three basic components: water, aggregate (rock, sand, or gravel) and cement. Cement, usually in powder form, acts as a binding agent when mixed with water and aggregates. This combination, or concrete mix, will be poured and harden into the durable material with which we are all familiar. Read more about concrete here.

 

Components of a basic concrete mix

There are three basic ingredients in the concrete mix:

Aggregates - Gravel or crushed stone is the coarse aggregate in most mixes. Sand is the fine aggregate.

Water - Water is needed to chemically react with the cement and too provide workability with the concrete. The amount of water in the mix compared with the amount of cement is called the water/cement ratio. The lower the w/c ratio, the stronger the concrete. 

Cement - The cement and water form a paste that coats the aggregate and sand in the mix. The paste hardens and binds the aggregates and sand together. The cement can be colored by using pigments, but that is optional.

 

Choosing the right concrete mix

The choice of concrete depends on your project. Be it traditional precast or a thinner glass fibre reinforced concrete; Graphic Concrete works with all types of prefabricated concrete.

The choice of concrete mix depends on the need of the project both in terms of strength and appearance and in relation to local legislation and building codes. The design begins by determining the requirements of the concrete. These requirements take into consideration the weather conditions that the concrete will be exposed to in service, and the required design strength. 

When it comes to your Graphic Concrete Mix Design, you should always contact a local precaster to discuss requirements and possibilities for your specific region. Ask about available aggregate colors (prefer local!) , because that will be a determining factor for the final look of your Graphic Concrete.

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