Application of mineral pumice in construction

Concrete braces and beams

Mineral pumice is used in the production of concrete braces and beams. By adding mineral pumice to concrete, the strength and strength of concrete increases and the structures are able to withstand more loads. Concrete has a very high resistance to tensile forces, but when pressure is applied from different parts, it cracks easily, that's why pumice is added to it to solve this problem. Light concrete Perhaps it can be said that one of the most important applications of mineral pumice in construction is the construction of lightweight concrete. To do this, just add some of the said material to the concrete mixture. In fact, by adding pumice stones, engineers significantly reduce the weight of the structure and increase its resistance to increase the safety factor of the building. Roof coverings Roof coverings are made of mineral pumice stone. Due to their lightness and high corrosion resistance, these coatings are considered the best option for building roofs. Our country is considered one of the earthquake-prone areas in the world, that's why many Iranian builders and engineers use this material in their projects. Use in the subway tunnel Insulation of tunnels against sound and moisture is very important, that's why these materials are used in the walls. In addition, the use of pumice in the construction of subway structures increases their strength significantly.

1. Mechanical extraction

In the first stage, the mechanical extraction of pumice from the mine is done by machines such as bulldozers, cranes and loaders. At this stage, by using the equipment, you can easily access the lower layers of the soil and obtain the required materials. 2. Chemical extraction In the second stage, special chemicals are needed to separate the pumice from the ore. Stones are placed in chambers of acidic and alkaline materials that dissolve impurities. With this, the pumice is prepared for transfer to the processing department.

Natural decay

At this stage, the mineral pumice is naturally placed in an environment with specific humidity and temperature so that natural decay occurs. This process increases the physical and chemical properties of mineral pumice. drying After natural decay, mineral pumice is dried to reduce its moisture content. This step increases the strength and stability of mineral pumice. Screening In the sieving stage, mineral pumice is separated based on particle size. This increases the uniformity and quality of mineral pumice. The application of mineral pumice in construction is different based on the different sizes that are produced. Grinding In the grinding stage, mineral pumice is crushed by mechanical mills. This action reduces the size of particles and increases their number. The main reason for this is the large size of some parts, which makes it difficult to use them.