All about pouring concrete in the modern age

Concrete is a very common raw material in the construction and renovation industries. Many professionals believe that the concrete pouring stage is the central part of the construction process. This is the stage where the concrete is poured into the forms (moulds with which concrete is poured), whose role is to preserve the shape of the concrete in its liquid state, and to support it until it solidifies and is able to independently bear its weight. In recent years, concrete is becoming more and more popular also among paving works.

More and more architects are choosing concrete surfaces to give different spaces a unique and impressive look. Other places where such a surface can be found are in the yards of private houses, when you want to create an area that can be used for any purpose, alongside the green space.

Pouring concrete ensures a particularly strong floor that is resistant to all weather conditions. The concrete is based on a mixture of cement, water, gravel and sand, when these allow a very high carrying capacity. An important advantage of concrete is that no gaps or bumps are created, rather, the result is one continuous surface.

types of concrete:

1. reinforced concrete:
Reinforced concrete is a construction technology that combines concrete with an elastic material in order to obtain an extremely strong construction material.  It is almost always a combination of concrete and steel, but there are also other possible materials. Inside the reinforced concrete are grids or steel rods that connect to the concrete while it is being poured. The product obtained from the casting of concrete that captures these bars and nets inside it is called “reinforced concrete”. This concrete is a material capable of resisting various types of efforts.

2. pressed concrete:
Prestressed concrete is a type of construction technology that uses concrete and tensioned steel cables. Prestressed concrete beams are usually used to build bridges or roofs that carry large loads over large surfaces. Prestressed concrete structural elements can reach a wider surface area than those built from reinforced concrete.

3. Thin concrete – used for filling and leveling purposes, this concrete is not resistant to loads and is used as a bottom layer.

4. Light concrete – As its name implies, a light mix that comes with a mixture of chemical substances that produce air bubbles and voids in the concrete. This concrete is used for acoustic insulation and protection from heat and cold.

Concrete castings (precast concrete) concrete that arrives cast in molds and is brought to the construction site when it is ready. The molds are usually made in factories. These molds arrive at the site, and the surfaces for the foundations of the building are assembled.

The stages of pouring the concrete:

First step of pouring concrete – preparing the area. Inspection of essential infrastructure (communication, gas, electricity, water), if necessary, it will move to another place. If the ground is not stable and level, a dedicated nylon will be placed on the surface, in order to prevent liquids from escaping.

The second step is formwork. This action is the demarcation of the work area. For this operation, there are two options for demarcating the work area: with planks held by iron rods, or through modular aluminum molds (link to our Rasta page on the website).

Pouring concrete ensures a particularly strong floor that is resistant to all weather conditions. The concrete is based on a mixture of cement, water, gravel and sand, when these allow a very high carrying capacity. An important advantage of concrete is that no gaps or bumps are created, rather, the result is one continuous surface.

A modular aluminum mold comes in a variety of sizes, is lighter than steel molds, and extremely strong. Working with templates saves labor inputs and significantly reduces contractor costs. The result obtained after casting concrete using modular aluminum molds is smooth, durable and high-quality concrete.

The casting itself is carried out directly from the concrete truck, whether there is suitable access, or by means of a pump. After the concrete is poured, leveling will be done, and then it is necessary to wait until the material dries.

  • Aluminum is a relatively new material and its use is not yet as common as wood and steel, but its use is increasing in light of its distinct advantages, such as: low weight, strength-to-weight ratio 3 times higher than steel, resistance to corrosion, low maintenance costs and convenient and simple assembly of the horizontal system components on the towers.

  • Aluminum or steel flashing beams, which have a higher bending strength than a wooden roof, allow bridging over large spans and reduce the number of necessary towers, with all the benefits that result from this.

 

On the other hand, the following points must be observed:

  • A high concentrated load on the foot of the tower requires extreme care for the correct distribution of the load on the bearing surface (concrete floor or fastened substrate).

  • It should be checked if support is required for the bearing surface due to the concentrated loads transferred to it by the legs of the towers.

  • The sunsets must be neutralized by making a slight arch while climbing.

  • The possibility of a bridge with large openings by means of the escape beams and slats increases the load placed on the legs of the tower, therefore it is necessary to take care of reinforcements between the towers, when the tower is higher than 6 m, by means of diagonal reinforcements which will reduce the length of the collapse of the legs of the towers.
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