Filling gaps with rigid polyurethane foam! It excels in stability, water-stopping effect, and workability.
The "Set Form Method" is a technique used in the repair work of existing tunnels, where voids behind the lining concrete are filled with rigid polyurethane foam. Rigid polyurethane foam hardens in about one minute after injection and reaches its final strength in 30 minutes, providing excellent early stability. Additionally, if using rigid polyurethane foam that expands 40 times, the amount of materials transported and the injection volume are only one-fortieth of the actual void volume. 【Features】 - Minimal penetration and escape into the surrounding ground, reducing the injection volume - Construction possible within a budget based on actual void volume - The weight on the lining concrete is lightweight at 30 kg/m3 - Excellent water-stopping effect as it expands and hardens even underwater - Can be constructed without time constraints, among others *For more details, please feel free to contact us.
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Our company contributes to building a prosperous future through the manufacturing, sales, and construction of civil engineering-related products necessary for infrastructure development. Supporting this business expansion is our unique technological capability. We will continue to develop new technologies and construction methods to meet the diverse needs of our customers. Please feel free to consult us if you have any requests.
