Road Concrete Pavement Slab Settlement Correction Method Achieves Early Lifting of Traffic Restrictions
We will correct the irregularities such as steps and flapping that have occurred in the concrete pavement slabs using a specially developed high-strength urethane resin, without excavation and within a short construction period.
Using a specially developed high-strength polyurethane resin, we will address issues such as step differences and fluttering that occur in concrete pavement slabs commonly used on highways, as well as fill voids and cavities that have developed under bridge deck slabs, all without breaking the existing concrete pavement and within a short construction period. Injecting polyurethane resin will also improve the loosening of the subgrade. Additionally, it enables the lifting of joints with polyurethane resin along with the bearing slab, fundamentally solving the correction of step differences at joint areas, which traditionally required excavation and long-term continuous restrictions or road closures.
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basic information
【Features】 ■ Short construction period Approximately 1/10 of the construction time compared to traditional replacement methods. ■ Eliminates loosening of the surface base By injecting liquid urethane, urethane resin fills the gaps in the crushed stone, reinforcing the base. ■ Can correct the sinking of the sleeper without excavation Enables non-excavation work, allowing for early lifting of traffic restrictions. ■ Compact construction package Construction can be carried out simply by deploying a truck equipped with all necessary materials and equipment. 【Construction Process】 1. Plant vehicle setup All necessary equipment for construction, including generators, compressors, injectors, and hoses, is loaded onto the truck. 2. Preparation work Conduct level surveying before construction to confirm the current state. Mark at 1-meter intervals and drill small holes with a diameter of 16mm. 3. Injection work Inject urethane in stages while continuously checking the level of the road surface. 4. Miscellaneous work and completion Conduct level surveying, fill the injection holes, and complete the work. Upcon provides a consistent service from investigation to construction and responds quickly. *Please feel free to contact us if you have any questions.
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Applications/Examples of results
[Achievements] Kanto Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Chubu Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Tohoku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Hokuriku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, Kinki Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism, etc. Various expressway companies
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Company information
We carry out construction to correct the sinking, tilting, steps, and gaps in concrete floors caused by uneven ground subsidence in buildings such as factories, warehouses, stores, and general residences, using our unique "Upcon Method" with completely non-fluorinated urethane resin and small machinery. Additionally, we are engaged in public works that utilize technologies developed through various research and development projects to restore the functionality of aging social infrastructure such as roads, airports, ports, and agricultural waterways. ■ Features of the Upcon Method 1. Short construction period: The construction time is 1/10 of conventional methods. 2. No interruption of operations: No need to move machinery or cargo. 3. Comprehensive high technical capability: 100% in-house employees. 4. Compact construction system: Quick restoration to the current state is possible. 5. Reduced risk of re-subsidence: Lower risk of re-subsidence compared to conventional methods. Our in-house staff provides total support from on-site surveys across the country to repair planning and construction, taking full responsibility. Our specialized and experienced in-house staff will propose the optimal repair plan tailored to your site. Upcon Co., Ltd. was newly listed on the Nagoya Stock Exchange Next Market on December 26, 2022.