Production Steps of Heblex Blocks
Heblex blocks, as an innovation in the field of construction materials, have currently attracted the attention of architects and civil engineers. This material is essentially a type of aerated and autoclaved concrete, created from a combination of silica sand, lime, cement, aluminum powder, and water. The production process of heblex blocks involves baking these materials at a temperature of 200 degrees Celsius and under a pressure of 12 atmospheres.
Heblex Blocks
The popularity of heblex blocks among architects and engineers is due to the significant advantages of this construction material, some of which include:
- 1. Lightweight Construction:** Heblex blocks are lighter compared to other materials, making their transportation easier.
2. High Temperature Resistance:** The high resistance to temperature is a result of the specific composition and baking process of heblex blocks, optimizing energy consumption in heating and cooling systems. - 3. Earthquake and Storm Resistance:** Due to its lightweight nature, heblex blocks exhibit greater resistance against natural hazards such as earthquakes and storms.
- 4. Fire and Frost Resistance:** Heblex blocks undergo autoclaving in three stages, providing them with high resistance against fire and frost. This feature has made heblex blocks one of the safest construction materials.
- 5. Fast Installation:** The high speed of heblex block installation, facilitated by their lightweight and the use of special adhesive, makes them a suitable choice for projects with tight schedules.
- 6. In addition to the mentioned advantages, heblex blocks are considered an environmentally friendly product due to their recyclability. This characteristic earns them significant points in modern projects where environmental protection is a top priority.
Production Steps of Heblex Blocks
Production Steps of Heblex Blocks
Step One: Silica Slurry Preparation**
The initial step in the production of heblex blocks involves creating a silica slurry based on water. In this stage, a specific amount of silica and water is mixed to form the silica slurry. The resulting mixture in this stage has a moderate consistency.
Step Two: Adding Lime and Cement for Heblex Block Production**
In this stage, lime and cement are added to the silica slurry and water mixture. It is crucial to maintain the moderate consistency of the slurry without making it too firm or too thin. Industrial mixers are used to combine silica slurry, lime, and cement. Maintaining the moderate consistency and uniformity of this mixture is of special importance. Water may be added if needed to control the moisture content of this mixture.
Step Three: Adding Aluminum Powder to the Slurry**
After achieving a thorough mix of water, silica, lime, and cement, aluminum powder is sprayed onto this mixture. To enhance the blending of aluminum powder with the mentioned mixture, water may be used if necessary.
Step Four: Molding Heblex Blocks**
The molds used for pouring the mixture have dimensions of 3 cubic meters. Half of the mold, i.e., 1.5 cubic meters, is filled with the mixture, and this stage is known as the aeration phase of heblex block formation. The primary reason for the lightweight nature of heblex blocks is the formation of air bubbles and their expansion in the mold. In this stage, the mixture undergoes chemical reactions, raising its temperature to 70 degrees Celsius. An important note in this stage is the application of Mazut (a type of heavy, low-quality fuel oil) to the molds before pouring the mixture. This prevents the mixture from sticking to the main mold during the rise and expansion, ensuring easy separation.
Step Five: Quality Control**
Quality control is a crucial stage in the production of heblex blocks. In this step, one or more blocks are randomly and systematically cut to ensure their quality.
Step Six: Cutting Heblex Blocks**
In this stage, blocks are cut according to market demand and customer needs in various length and width dimensions.
Step Seven: Autoclaving**
After cutting heblex blocks, the next step is autoclaving. The goal of autoclaving is to apply pressure and temperature up to a certain limit to enhance the strength and durability of the final product.
result
Given the intricate stages of heblex block production and the utilization of expensive raw materials such as silica, aluminum powder, and other substances, the price of heblex blocks is directly correlated with their materials. In comparison to bricks, which employ more cost-effective materials and undergo a simpler production process, the manufacturing of heblex blocks involves higher expenses.
The incorporation of high-cost materials and the necessity for advanced technologies like autoclave machines have transformed the production into a protracted process requiring sophisticated equipment. The principal factor contributing to the elevated cost of heblex blocks in contrast to other construction materials is this complexity.
On the flip side, the lightweight characteristics of these blocks and the ease of construction during their usage significantly reduce overall construction costs. Consequently, justifying the higher price of heblex blocks can be approached by considering the noteworthy cost reductions throughout the construction process. It can even be argued that the utilization of these blocks in construction projects will ultimately prove to be a cost-effective choice.