In construction projects, especially in multi-story buildings or bridges, the use of expansion joints becomes an important element. Expansion joints are installed at structural joints to accommodate movement due to temperature changes, loads, vibrations, or ground shifts.
To function optimally, the selection and installation of expansion joints must be meticulous. The selection of the appropriate expansion joint rubber depends on several factors, including:
- Type of building. Expansion joints in bridges, high-rise buildings, factory floors, or parking areas each have different technical requirements.
- Gap size. The width of the expansion and contraction gap that needs to be sealed determines the dimensions and type of rubber required.
- Load. In areas with high traffic or heavy loads, use expansion joints that have high resistance to pressure and wear.
- Quality materials. Make sure the rubber is made from elastic material, resistant to extreme weather, and chemicals (if necessary).
- Certification and standards. Choose products that meet national and international technical standards, such as SNI (Indonesian National Standard) or ISO.
Before installation, it is important to prepare by cleaning the gap area from dust, oil, and dirt so that the rubber can adhere properly. Ensure that the concrete or steel surface is flat and dry. Don’t forget, if necessary, prepare special adhesive and installation aids such as a press or roller.
In the process of installing the expansion joint, follow these general steps: - Cut the rubber according to the length of the gap that needs to be closed. Re-measure to ensure precision in the result.
- For small-scale projects, installation can be done manually by hand, while for large-scale projects, use a press tool. Press the rubber until the entire part fits evenly into the gap.
- Make sure the rubber does not have wrinkles or is not rolled up. Make adjustments if there are parts that are not perfectly installed. If necessary, apply sealant on the rubber side to prevent water or dirt from entering.
- After installation, conduct routine inspections to ensure the rubber continues to function properly. Check for any damage, tears, or detachment from the surface.
Samudera Luas Paramacitra produces a variety of high-quality expansion joints in accordance with ISO 9001 quality management standards. For orders and consultations, please contact +62-823-2018-9998 or email admin@niri-rubber.com.
