Concrete repair technology "Pressure Adjustment Injection Method" [*Available for nationwide construction*]
Can accommodate fine cracks as small as 0.02 millimeters! The repair material penetrates deep into the cracks, achieving high-quality repairs. <Exhibiting at the Construction Technology Fair 2024!>
The "Pressure Adjustment Injection Method" is a concrete repair technology that allows for the injection of materials while freely adjusting the injection pressure to low, medium, or high levels according to the width and depth of the cracks. It can inject even cracks as narrow as 0.02mm and can accommodate depths of up to 200cm. Work can be performed in various locations, such as the exterior walls of buildings and the undersides of bridges, and it generates less waste compared to conventional methods, contributing to reduced environmental impact. 【Features】 ■ A new technology for repairing cracks in concrete repair work ■ Construction is carried out while confirming that the material reaches deep areas ■ Ensures reliable repair work ■ Capable of addressing fine cracks with a width of 0.02mm 【Exhibition Information】 ■ Exhibition Name: Construction Technology Fair 2024 ■ Venue: Port Messe Nagoya (Nagoya International Exhibition Center) ■ Dates: November 28 (Thursday) and 29 (Friday), 2024 ■ Booth Number: Sh08 *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Purpose】 ■Repair of business hotel exterior walls ■Repair of the underside of bridges *For more details, please refer to the PDF document or feel free to contact us.
Price information
The construction price may vary depending on the construction conditions and volume, so please feel free to contact us first.
Price range
P4
Delivery Time
※The construction period may vary depending on the scope and volume of work, so please feel free to contact us.
Applications/Examples of results
【Examples of Achievements】 ■Kanagawa Prefecture: Concrete Bridge Repair Work ■Shizuoka Prefecture: Concrete Repair Work for Elderly Facilities ■Shizuoka Prefecture: Concrete Bridge Repair Work *For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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Construction can be done not only on flat surfaces but also on areas with unevenness.
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A preliminary survey will be conducted for the construction site, and plans for the construction volume and other details will be made.
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The injection nozzle is fixed to the repair area using air pressure, and the repair material is injected.
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The contractor will proceed with the work while visually confirming the injection status.
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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.
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