With the increasing use of stone materials, people pay more and more attention to the safety and quality of stone engineering. However, because many people know little about the characteristics of stone, there are many misunderstandings about the stone. It is necessary to make a clear understanding of the scientific and rational application of stone in the building.
One of the doubts: The stone is very heavy, will it become a safety hazard when it is installed at high altitude?
High-rise decorative stone is generally three times heavier than glass. Hundreds of slate are attached to the outer wall. People often think that the stone curtain wall project, especially the high-rise, will have great safety hazards, and worry that there will be stones that “fall from the sky†and cause personal injury. Security threats.
Confusing:
In fact, the stone used on the exterior wall of the building is strictly in accordance with the requirements of the Technical Specifications for Metal and Stone Curtain Wall Engineering (JGJ133-2001). From the technical point of view, the dry hanging construction of the stone is the main force point on the main structure, and the stone is fixed on the building through the metal hanging piece to form a stone decorative curtain wall.
The main advantages of dry stone hanging: First, the safety and durability are improved, and the phenomenon of emptying, cracking and falling off of the sheet in the wet sticking process can be effectively avoided; the second is to keep the curtain wall clean and beautiful, avoid whitening, discoloration, etc. Phenomenon; the third is to improve construction conditions, reduce labor intensity, and speed up the progress of the project. From the material point of view, the material of stone decoration is the key to ensure the quality of the project. In addition to stone, there are mainly steel (aluminum) skeleton materials, hanging plates, hooks, structural adhesives and sealing weathering adhesives. The selected aluminum, steel and other profiles must meet the national requirements. The plating layer on the surface of aluminum must meet the requirements of national AAA5 or above. The steel must be hot-dip galvanized or treated with other anti-corrosion materials to ensure that it does not rust. The connecting plate must be made of stainless steel plate of 3 mm or more or aluminum plate of 4 mm or more. Compared with the currently widely used glass curtain wall, the safety of the stone curtain wall is actually higher. Slabs joined by metal members are much more robust than glass curtain walls that are fixed with structural glue.
Doubt 2: Stone is susceptible to pollution and "lesion", should not be used?
Many stone decoration projects produce stone "lesions" after construction, such as water spots, vomiting yellow, and pan-alkali, which make people feel that the stone is not good to serve, the quality is problematic, and thus the resistance is contradictory, and the use of stone is inconvenient.
Confusing:
In fact, these problems are not difficult to solve. First, the protective treatment of the stone before leaving the factory. Natural stone is mineral, the internal capillary pores are large, and various pollution sources such as rainwater, acid and alkali, oil stains, etc. will penetrate into it to form "lesions". Therefore, it is best to apply stone protective agent before the stone specification plate leaves the factory. The protective agent (both solvent-based and water-based) forms a protective barrier to prevent external pollution from infiltrating and prevent the contamination of the interior and bottom of the stone, thereby maintaining the original appearance of the stone and prolonging the service life of the stone. Second, the post-maintenance of stone is also very important. In order to keep the stone bright, careful maintenance is necessary, including daily cleaning, pollution removal and glazing.
Daily cleaning can be done with water or some neutral detergent. After cleaning, the surface must be wiped dry to avoid residual moisture. Daily cleaning can only remove some dust and dirt on the surface. If you encounter some special pollution, such as plant pigment pollution, oil stains, rust, etc., you must use a special cleaning agent to remove. If the surface is not very shiny or scratched or even tarnished, the stone should be glazed or polished. There is a special syrup on the glazing. After the smear, the polishing machine is used to increase the brightness. The polishing is determined by the degree of damage of the stone. The lighter is manually polished with the syrup. In the case of heavy, the grinding machine is used together with the special medicinal agent to restore the stone. Original luster.
All in all, after reasonable design, construction and use, the quality and safety of stone engineering can be well controlled. As a natural building material with high plasticity, stone is unmatched by other building materials to improve the grade of the building and increase the connotation of the building.
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