The laying method of fired bricks has been introduced to everyone. In addition to the method, the quality of the brick products is also a factor that ensures the quality of the project. To produce high-quality products, there are certain requirements in terms of technology and work. This article introduces the relevant requirements from the perspective of product quality.
1. Technical requirements for specifications and appearance quality: The shape of fired bricks is a straight hexagonal body, which is divided into three indicators: excellent quality, first-class quality, and qualified quality. Therefore, when sintering ordinary bricks, they should be sintered according to official reference indicators. The appearance quality is also clearly defined, and the compressive strength is within a reasonable range. Operators need to work according to these standards and cannot make unauthorized changes or alterations. Before masonry, the bricks should be watered to make their surface more moist.
2. Frostbite: Frostbite is also the phenomenon of salt precipitation during the use of bricks. Of course, frosting is a normal phenomenon during the sintering process. Due to the excessive soluble salt in the brick being affected by moisture and easily dissolved by water absorption, it expands and causes the brick surface to peel off as the water evaporates. Severe frosting is not allowed in qualified products, which requires operators to strictly follow the material ratio and sintering process during the sintering process.
3. Lime cracking: Similar to frosting, lime cracking also occurs frequently during the sintering process. Lime cracking is caused by the inclusion of limestone in the bricks. When the bricks absorb water, the lime gradually matures and cracks. Therefore, in order to avoid or reduce this situation, it is required that the moisture content should not be too high during the powder pressing and forming process. Extrusion forming is currently a relatively advanced forming technology that can effectively avoid frosting and lime cracking. The firing temperature should be controlled within a reasonable range, not too high or too low. There are strict written regulations in the technical performance indicators. It should also be noted that construction cannot be carried out on rainy days. After the sintering process is completed, strict inspection should be carried out to promptly remove those that do not meet the specifications. Defective products.
At the technical level, the production of fired bricks needs to be strictly carried out in accordance with relevant indicators, and the requirements are also quite specific. Only by producing according to the requirements can the quality be guaranteed.