As we already know, there are various materials that have become components when it comes to building.
One of them is concrete or reinforced cement, which represents a proportionate mixture of water, cement, sand or gravel, and additives such as fibers or pigments. The result is a durable, dense, and strong material that can be used in a variety of ways.
As experts in the field, we understand that construction machinery such as a professional or industrial concrete mixer cannot always be counted on to carry out the mixing work. However, this process is important to consider when dealing with large works such as buildings, houses, pavements, and more.
Density and applications
In addition to its main components, the density of this material will be determined based on the number of rocks that you add to the mix. This property is of vital importance because it gives it that necessary resistance that is required depending on the type of work and the loads that the structure must support. For this reason, we find:
- Lightweight. In general, it weighs between 800 and 1800 Kg / cm3, requires the incorporation of air and specific additives. It is used to fill or level roofs, build subfloors, non-structural partitions, and for plumbing.
- Normal. Its weight is over 2000 Kg / cm3 and is part of the reinforced structures that support the works, such as foundations, pillars, walls, vaults, pavements and is also used for decorative elements.
- Heavy. Since more dense additives are added, its composition exceeds 3000 kg / cm3, which makes it special for shielding structures, blocking radiation, counterweights for bridges, and some types of foundations.
Related to density, proportions and what they are used for, there are different kinds of concrete or concrete that have specific uses, such as:
Ordinary: It is the result of the mixture between Portland cement, water, and various sizes that are greater or less than 5 mm, plus gravel and sand.
In mass: This class does not require internal steel structures and only withstands compression related forces.
Armed: It is the most common because it contains steel structures inside that have been properly arranged. It is ideal for resisting tensile and compressive loads.
Prestressed: This mixture has a steel reinforcement inside that is designed to be tensioned as a function of the traction after pouring it. Prestressing can also occur prior to placing a fresh mix.
Post-tensioning: Similar to the previous one, the steel reinforcement is tensioned after the cement has set and hardened.
Self-compacting: It does not require compaction due to a precise dosage of super plasticizing additives that facilitate it to compact under its own weight.
Cellular or aerated: To obtain it, air or other gases must be incorporated into the mixture, which produces a low-density concrete.
High density: Contrary to the previous one, this one is manufactured with aggregates of higher density such as barite, hematite, or magnetite.
Concrete is undoubtedly a versatile material, which with the appropriate construction machinery for its preparation, mixing, and application, offers different uses and finishes, among them the most requested are: polished, which is a surface treatment;
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