Hydro Demolition Bridge Deck | Precise Concrete Removal

Looking for safe and precise hydro demolition for your bridge deck? Our advanced water jet technology ensures efficient concrete removal with minimal structural impact. Contact us for customized solutions.

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Working Principle

High-pressure water jet demolition technology uses the principle of liquid pressurization. It involves a high-pressure plunger pump that increases low-pressure water to ultra-high pressures (100-140 MPa). The water jet, with its strong impact energy, continuously acts on the concrete surface, causing the material to be stripped away. During the process, there are no severe vibrations, stress diffusion, or damage to the reinforcing steel, and it allows for layer-by-layer breaking to any depth, facilitating the repair, renovation, and reinforcement of building structures. This technology is particularly suitable for the renovation, modification, and strengthening of concrete structures in bridges, dams, tunnels, docks, airports, and important buildings.

Traditional Method

In the renovation, modification, and reinforcement of concrete structures in bridges, dams, tunnels, docks, airports, and important buildings, traditional concrete demolition methods are mainly divided into manual demolition and mechanical demolition. Both methods involve using metal crushing heads to impact or cut the concrete, causing it to fall away. However, this process leads to stress diffusion, causing cracks to extend in the concrete, and the existing reinforcing steel in the concrete is not effectively preserved, requiring rebar reinstallation later.

The main issues faced in traditional concrete demolition and repair methods

significant stress diffusion, resulting in micro-cracks

inability to preserve the original rebar

low efficiency

high dust levels during construction, which impacts the environment.

About High Pressure Hydroblast Concrete Removal Process

The high-pressure water jet concrete removal process began in the 1980s, developed by the Swedish Road Administration in collaboration with mining equipment manufacturers to create selective hydraulic removal equipment. This technology has been applied overseas for over 40 years with proven success. The high-pressure water removal equipment applies minimal external force only to the concrete that needs to be removed. By precisely controlling the water pressure, flow rate, jet movement speed, and impact angle, the water jet cuts into the concrete, generating internal water pressure that forces the material to rise, leaving behind intact, solid concrete. The rebar is thoroughly cleaned, free of rust and concrete residue.

Fedjet Hydroblast

The high-pressure water jet concrete removal equipment, designed and developed with the participation of Fedjet Waterjet Technology, was applied to the turbine chamber renovation project of Units 1 and 2 at the Gezhouba Power Plant, owned by China Yangtze Power Co., Ltd. This project marks the first global application of hydraulic concrete removal in the hydropower industry. A total of 296 cubic meters of concrete was removed from a single turbine chamber, with the removal process completed in 52 days. Compared to traditional methods used in confined environments, the project duration was reduced by more than 50%, significantly improving efficiency and results. The successful implementation of this project honed Fedjet Waterjet Technology's R&D capabilities and allowed them to accumulate extensive on-site experience.

Fedjet Hydro Demolition Case Photo

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Discover professional hydro demolition bridge deck services designed to deliver precise, safe, and efficient concrete removal. Our advanced water jet technology ensures minimal structural damage while enhancing safety and reducing dust and noise. Ideal for restoring bridge decks by removing deteriorated concrete without compromising rebar or surrounding structures. Contact us for reliable and cost-effective hydro demolition solutions tailored to your project needs.