Everything about fine concrete

What special properties and special composition of fine concrete has, and where you use it, you can read in this post. In addition, which building material group he actually belongs to, and where he plays a role in the truest sense of the word.

Concretes and mortar

Depending on which particle sizes are present in the rock mix, one can classify building materials either as concrete or as mortar.

With fine concrete usually a maximum grain size of 4 mm is used, so that fine concrete can actually be classified as mortar. The distinction is academic only, as fine concrete has almost the same properties as concrete with higher particle sizes in rock mixing. Fine concrete is a much more efficient building material than other mortars, and offers significantly better properties.

Applications of fine concrete

In contrast to ceramics, concrete does not have to be fired in order to obtain its strength. In many cases, the production of flower pots, floor tiles or the like made of fine concrete is a very cost-effective option.

Also for repairing walls, filler compounds made of fine concrete are often used. Because of their durability and hardness, they are particularly well suited for this task.

Fine concrete in textile concrete

Textile concrete is a special fiber concrete that consists of special fibers. As a rule, fibers made of particularly light but stable materials are used, namely:

  • alkali-resistant glass fibers
  • Aramid fibers (rare)
  • carbon fibers

From these fibers, a very strong mesh is produced, which can absorb the tensile stress in the component excellent, and can be made much thinner than conventional reinforcements made of steel.

In order to create components that are as light as possible but highly load-bearing, the fabric is encased in fine concrete fibers. The smaller the grain size of the concrete, the thinner the component can be made (with the same strength).

In the first practical tests, where textile concrete was mainly used for the construction of bridges, the grain size was on average around 2 mm - this results in highly resilient, high tensile and pressure-resistant (through the concrete) components. Layer thicknesses of 1 - 3 cm are quite accessible with textile concrete.

This is due to the high strength of the fine concrete, which absorbs the compressive forces, while the fabric - as any classical reinforcement also - absorbs the tensile forces to which the component is exposed. In all likelihood, fine concrete will become a very important building material in the near future, if textile concrete is used more often.

Tips & Tricks

In general, you can also make your own works of art or utensils made of fine concrete - this is a cheap alternative to buying. The high strength makes the produced objects also very solid and durable and fully resistant to all weathering and abrasion.

Video Board: Understanding Concrete, Cement, and Mortar