Remove only the concrete part without damaging the internal rebar! Adjustments can be made according to finishing applications. 【*Available for nationwide construction】
The "Water Jet Method" involves ejecting pressurized water, supplied by a high-pressure pump, as a high-speed water jet from a small-diameter nozzle to perform tasks such as surface stripping of concrete, roughening, paint removal, and cleaning. The high-pressure water flow produced by this method is suitable for removing deteriorated concrete sections. Additionally, by adjusting the pressure of the water jet, it is possible to remove paint coatings applied to surfaces such as buildings, making it also well-suited for asbestos removal work. 【Features】 ■ Concrete removal ■ Paint removal ■ Asbestos removal *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Equipment Owned (Excerpt)】 ■ Trail Jet 100 (Ultra High Pressure Water Generation Device) - Application: Chipping, roughening, paint film stripping and removal, cleaning - Pressure: 50-250 MPa - Maximum Flow Rate: 10-20 liters/min - Dimensions: L3750×W1980×H2050 mm - Noise Level: LWA=103 dB - Pump Output: 100 kW, 610 u/min - Hose Length: 85 m - Water Tank: 400 liters ■ Wheel Jet 11P (Ultra High Pressure Water Generation Device) - Application: Paint film stripping, cleaning - Pressure: 3-30 MPa - Maximum Flow Rate: 8-18 liters/min - Dimensions: L1175×W755×H920 mm - Noise Level: LPA=86 dB, LWA=103 dB - Pump Output: 11 kW, 1460 rpm, 2.0-8.0 bar, 70℃ - Hose Length: 90 m *For more details, please refer to the PDF document or feel free to contact us.
Price information
We will conduct a site inspection and provide a quotation based on the construction volume and site conditions.
Price range
P5
Delivery Time
※The construction period may vary depending on the scope of work, so please feel free to contact us.
Applications/Examples of results
【Examples of Achievements】 ■Kyoto Prefecture: Bridge repair work (concrete chipping, surface preparation) ■Hokkaido: Asbestos removal work in animal shelters (coating removal, asbestos removal) ■Shizuoka Prefecture: Coating removal work for public school pools (paint coating removal) ■Shizuoka Prefecture: Facility and building exterior wall cleaning work (cleaning) *For more details, please refer to the PDF materials 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 by actively introducing new technologies and overseas techniques. As a new technology for crack repair, we have adopted the "pressure-controlled injection method." By applying appropriate pressure with a pump while permeating the repair material, it ensures that the material reaches deep into the cracks. It can accommodate widths of up to 0.02 mm. Additionally, we own a German-made ultra-high-pressure water jet machine, which achieves high-quality surface treatment, chipping, coating removal, and cleaning compared to existing methods.
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