The Hulunbuir construction site uses polytetrafluoroethylene plates for shock absorption

The Hulunbuir construction site uses polytetrafluoroethylene plates for shock absorption

Below, I will share with you the transportation and maintenance issues of sandstone products in practical applications. Dirt and contamination not only hinder aesthetics, but also contain corrosive chemical components that can cause sandstone to deteriorate. Pollution generated during construction or maintenance must be treated differently. Generally speaking, prevention is more important than cleaning, and daily maintenance is more effective than sudden cleaning. Soil stains can be reduced and prevented through proper design and material selection, careful construction, and maintenance. The so-called correct design refers to paying attention to the pollution of sandstone products caused by the following events. When processing products on a flat surface, wall cap stones that tilt outward, parts that do not require drainage using wall caves, structural parts where waterways flow into narrow areas, water flowing through concrete, glass, or other building materials surfaces, and flowing to sandstone surfaces can all easily cause pollution to sandstone products.
Performance characteristics of polytetrafluoroethylene board:

1. Strong acid resistance Strong alkali, almost resistant to all chemical media, except for molten alkali metals and elemental fluorine.

2. Outstanding insulation performance, good aging resistance and weather resistance.

3. Low friction coefficient, PTFE board staircase embedded board, not easy to bond, easy to install and disassemble

4. The product is clean and can be used in sealed areas that are not allowed to be contaminated, such as food

The Hulunbuir construction site uses polytetrafluoroethylene plates for shock absorption

Preventive measures: Since the color of the glue will darken, when adjusting the glue, the color of the glue should be slightly lighter than that of the stone. Uneven stone with wear and tear, loss of luster and color, has adsorption properties. Similarly, the molecules of the stone itself can also escape and wear away, causing the surface of the stone to change color and become rough. The reflectivity of light changes unevenly (uniform changes are acceptable, but also belong to color differences), resulting in color differences. The treatment method for mild loss of gloss is to apply touch up protective materials; Severe wear and tear, requiring grinding and refurbishment. Perform crystal sealing glaze protection treatment on the surface. Preventive measures: Crystal sealing glaze should be applied to the stone to improve surface wear resistance and protect the surface layer of the stone as much as possible. The wall stone should be well protected.

5. High mechanical strength, good turning performance, and easy processing into different sealing products.

6. The coefficient of linear expansion is low, and it is prone to creep or stress relaxation during cold flow and high temperature under compression, making it unsuitable for use in high-temperature and high-pressure areas.

Bridge support, PTFE plate, guide rail, PTFE plate

PTFE board is mainly used in engineering stairs as a hard PTFE stair support, which is relatively widely used in current staircase applications. Because the stairwell does not participate in the overall seismic calculation of the structure, sliding supports need to be designed according to traffic restrictions. The practical specifications of PTFE boards for stairs must meet the design requirements and construction specifications.

Generally speaking, the half-life of harmful radon gas is only 3.2 days, and indoor radon concentration can drop to outdoor levels 2-3 minutes after opening doors and windows. A simple method is to enhance ventilation. The newly renovated room can be tested. If the test result is not qualified, radiation reducing coating or lead-free protective board can be used to prevent radon from being released from the building materials. If the radioactive index is too high, the stone must be replaced immediately. Both natural and artificial marble must be carefully monitored for radiation pollution after installation. The common method is to open windows for ventilation, and if necessary, absorption devices or protective plates can also be installed.