A new technology that revolutionizes concrete crack repair!
Our company offers the pressure-controlled injection method "SAPIS," which demonstrates excellent injection technology, adaptability, and economic efficiency. You can choose from two types of injection machines: the "Vacuum Suction Type Pressure-Controlled Injection Method (TH-110002-A)" and the "Nozzle Type Pressure-Controlled Injection Method (TH-110003-A)." Please feel free to contact us if you have any inquiries. 【Features】 ■ High-quality repair technology ■ Wide range of adaptability ■ Environmentally conscious *For more details, please download the PDF or feel free to contact us.
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【Features (Details)】 ■High-quality repair technology ・Can inject into fine cracks ・Injection pressure can be freely adjusted ・Multiple materials can be injected continuously ・Unique construction standards established ■Wide range of adaptability ・Compatible with various materials ・Repairs structures of various sizes ・Equipped with various attachments ・Nozzle type also supports buoy repairs ■Environmental consideration ・No disposal of injection equipment ・No need for adhesive curing of injection equipment ・Minimal loss of injection materials ・Reduced environmental burden through shortened construction time *For more details, please download the PDF or feel free to contact us.
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[Repair Targets] ■ Bridges (abutments, piers, deck) ■ Tunnels ■ Dams ■ Box culverts ■ Water tanks ■ Underground facilities ■ Wastewater treatment facilities ■ Retaining walls ■ Coastal protection facilities (breakwaters, seawalls), etc. *For more details, please download the PDF or feel free to contact us.
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Company information
In our country, during the period of rapid economic growth, approximately 10 billion cubic meters of concrete structures were built, many of which have experienced deterioration over time, leading to repair work being carried out in various locations. However, Japan has a strong concept of "scrap and build," and the technology related to repair and reinforcement is somewhat lagging compared to overseas. Therefore, Oba Construction Co., Ltd.'s Environmental Civil Engineering Division has started as a specialized department for the repair of concrete structures, aiming for high-quality repairs of domestic concrete structures by actively introducing new technologies and overseas techniques. As a new technology for crack repair, we have adopted the "pressure-adjusted injection method." By applying appropriate pressure with a pump while permeating the repair material, the material reliably reaches the depths of the cracks, and it can accommodate widths of up to 0.02 mm. Additionally, we own a German-made ultra-high-pressure water jet machine, which enables high-quality surface treatment, chipping, coating removal, and cleaning compared to existing methods.