Hydrodemolition robot equipment Hydrodemolition robot equipment

Hydrodemolition robot equipment

Hydrodemolition robot equipment is a concrete removal machine which utilizes high pressure water to remove deteriorated and sound concrete as well as asphalt. This process is also known as hydro blasting or hydro jetting for concrete removal with robotic hydro demolition.

Hydro demolition machine is often used to remove damaged or deteriorated concrete from bridges, highways, and other structures. The high pressure water jetting system not only removes the damaged material but also cleans the surface beneath, providing a clean substrate for repairing.


Hydrodemolition robot equipment is a concrete removal machine which utilizes high pressure water to remove deteriorated and sound concrete as well as asphalt. This process is also known as hydro blasting or hydro jetting for concrete removal with robotic hydro demolition.

Hydrodemolition is often used to remove damaged or deteriorated concrete from bridges, highways, and other structures. The high pressure water jetting system not only removes the damaged material but also cleans the surface beneath, providing a clean substrate for repairing. In addition to its power and efficiency, hydro demolition for concrete is a safe and environmentally friendly alternative to traditional demolition methods.

Due to the vulnerability of deteriorating and structurally deficient bridges, there is a need for selective demolition. It is defined as the removal of damaged or low strength concrete while retaining the healthy concrete. Hydrodemolition is an efficient, cost effective, and precise jetting method that removes deteriorated concrete via high pressure water jetting.

Additionally, hydro demolition is a safe and none impact concrete removal solution that will not result in micro crack of the existing substrate compared to traditional concrete milling or scarification methods.

Selective hydrodemolition for accuracy concrete removal

Hydrodemolition is required when you need to selectively remove concrete in a way that is controlled and doesn’t damage the rebar nor produce micro-cracks. It is the ideal solution for reducing the amount of dust, vibration, and excess noise created in the working place .

The best hydrodemolition equipment incorporates wireless remotely robots, as these solution will not require scaffolding and keep workers out of harm.

Watex’s concrete hydrodemolition robot uses a high pressure water blasting. It moves over the concrete surface at a constant speed with a high pressure. Taking advantage of the concrete’s permeability and use hydro blaster creates high pressure water that breaks it apart. The automation of the hydrodemolition robots allow operators to execute both selective and none selective removals.

Selective removal is the preferred cleaning method when the deteriorated concrete needs to be removed only. Our concrete hydrodemolition robot uses high pressure water up to 1500 bar for selectively remove concrete at a predetermined quality level.

None selective removal is the high thick concrete removal method when concrete needs to be removed completely , independent of the quality of the concrete. Hydro demolition robot uses high pressure water above 1800 bar

No matter what option you choose, high pressure water jet technology will create a rough surface optimal for bonding of new concrete without creating any micro cracks or damage to the remaining structure. In the meanwhile, the hydro demolition leaves the rebar intact and cleaned the rust and corrosion away.

How does hydrodemolition robot equipment work ?

Hydrodemolition robot equipment removes concrete by a high pressure water with jetting nozzle travel over the surface in a predetermined pattern at a predetermined speed until the desired depth is reached.

This is repeated moving over the entire surface in order to guarantee the same quality depth over the entire structure. Then the damaged concrete leaving a perfect surface for the new concrete to bond to.
In the process of hydrodemolition , no micro cracks are created in the concrete structure. Neither does hydrodemolition cut the rebars. It can help clean the rust or corrosion of the rebar.

Hydro demolition is the new technology to instead of the traditional jackhammer. It removes concrete with high pressure water up to 3000 bar. It creates no micro cracks and leaves an ideal bonding surface for the new concrete. Hydrodemolition eases the concerns about vulnerable concrete of bridges.

There are three methods in which hydro demolition robot machine removes concrete:
Hydro scarification – High pressure water jetting removes top layer concrete. Depth of removal falls around 1/4”
Partial depth removal – Selective removal of concrete that exceeds a depth of 2/4”- 3/4″.
Complete depth removal – Hydro demolish the deteriorated concrete fully.

Advantages of hydrodemolition robot equipment

Don’t cause micro-cracks in the remaining structure, ensure the repairing concrete with a high quality.
Hydrodemolition robot equipment creates no vibrations, and noise and dust are dramatically reduced, it is safe and environmental.
It allows selective and none selective removal.
Keeps the rebars clean and intact
Prepares an idea surface for bonding the old and new concrete.
Faster concrete removal than jackhammer
Limited noise pollution with water jetting only
Reduced dust pollution by suppressing water
Cost-effective and time-effective
High quality bonding surface between old and new concrete
No damage to rebar and removing rust and corrosion from steel
Decreased risk of injury for operators
Filling out of small cracks after hydrodemolition because of high quality surface for bonding

The ideal areas of application with hydrodemolition robot equipment

According to concrete repairing experience and internal concrete institute. Hydrodemolition robot equipment has been used on projects mainly for bridge surface and substructures, tunnels. Hydro demolition robot machine is beneficial to be used in bridge rehabilitation. As it is a safe and reduces the risk of micro cracking.

Hydrodemolition robot equipment achieve a versatile, safe, and precise removal method to repair concrete for a wide variety of large scale, small. And hard to reach projects ranging from concrete structure repair and removal.

Whether you need simple surface preparation or a complete concrete removal, our TEX™ robots can help. Our hydro demolition machine is utilized within several industries to help restore and repair structures and infrastructure such as, but not limited to:

Roads, bridges, and runways
Ports and quays
Parking decks
Pillars, piles, and columns
Tunnels, and pipes
Nuclear power plants
Water treatment facilities

Hydrodemolition equipment vs Jackhammers

Bridge rehabilitation typically occurs when a bridge received section loss on the surface beneath and when supporting superstructure or substructure become deteriorated obviously. Innovative concrete surface preparation is necessary to preserve and strengthen the integrity of bridges and to support the fulfillment of safety standards.
Repairing a large surface with jackhammers is simply and causes damage to the remaining structure and micro crack that can not seen. So it bring the potential risk of the bridge .
Hydraulic breakers or jackhammers will not give the operator the needed precise concrete removal.

Water pressure for hydrodemolition robot equipment

To remove concrete , it need to choose the right pressure . Hydrodemolition robot machine uses high pressure and ultra-high pressure (UHP) water jetting . High pressure water jetting in 15,000-25,000psi range , UHP water jetting in the range of 25,000-55,000psi.

For this reason, it has a wide variety of applications, including dockside piers, hydropower and wastewater plants, tunnels, pillars , and bridges and flyovers.

Hydro demolition equipment, such as the Tex-750 provides the most efficient and cost-effective way to repair and rehabilitate concrete structures. Because of its innovative 3D positioning system and hydraulically powered chassis. Tex-750 can reach horizontal vertical and overhead areas up to 7 meters (23 feet) without support.

Competing techniques of concrete demolition with hydro demolition robot

Traditional demolition techniques such as hydraulic hammering, and jackhammering leave microfractures on the surface of the concrete. While jackhammers may be beneficial to use in areas that are inaccessible to hydrodemolition equipment. Jackhammer allows vibrations to travel through the concrete which can loosen the rebar. In contrast, hydrodemolition ronot removes concrete without vibration with precise jetting, which reduces the risk of microcracking.

Benefits and drawbacks of hydrodemolition robot machine


Hydrodemolition eases the worries about vulnerable bridges and their damaged concrete via the high pressure water jet and it has many features:

Reduction of dust and lower noise pollution
Accuracy jetting for small great saves time and money
Most useful in concrete industry as innovative method and decrease safety risks for operators

There are many drawbacks need to be considered when looking into hydrodemolition of concrete for your project :

Water consumption and runoff if not collected properly .
Water and sewage department requirements during hydro demolition
Increased risk assessment when vertical and overhead work is conducted without reasonable measure.

Water treatment for hydrodemolition robotic machine

Water pumps used in hydro demolition projects removes wastewater for treatment for optimal sustainability and environmental atmosphere. It is essential that the PH value of the water to be regulated before water can be disposed.
Hydrodemolition equipment water treatment allows treated water and solid materials to be disposed or recycled. As an new innovative concrete removal method, it moves the industry forward. New water filter solutions of Watex also will work together to minimize the production of wastewater.

Common Concrete issues that hydrodemolition robot machine can support

Contractors can use robotic hydro demolition machine to speed up project achievement and minimizes the impact of deteriorated concrete on the project. There are four frequent concrete mistakes that hydrodemolition equipment may help you fix.

Formwork issues
Formwork failures can result in the concrete not as the expected standard . If the formwork fails to hold the concrete , it has to be corrected using jackhammer, which is slow, stifling work. Additionally, vibrations from the tool can damage rebar and creates microcracks inside of concrete. It is necessary to demolish most or all of the constructing structures.

Concrete segregation
Concrete segregation will break the main structure of the concrete. So it is urgent to deal with them .Hydrodemolition can remove the segregate concrete easy . This selectively removes material from the surface, remain the sound concrete intact. Using hydro demolition robot makes it possible to repair the concrete without causing any potential damage.

Off-Spec imbedded cement
Off-spec imbedded material can be a big issue. Hydro demolition is an effective method for removing these materials quickly without atmosphere pollution. Robotic hydrodemolition unit is a precise jetting process. It allows contractors to remove the right amount of material from main structure .

Compressive strength failure
Compressive strength failure is that concrete unable to hold up by the heavy weight. Many factors can cause it, such as an incorrect mixing design, weak aggregates ,bad weather or poor workmanship. When it occurs, the concrete will usually crack even crumble.


More and more infrastructures continue need innovative concrete preparation to rehabilitate and repair deficient cement. Hydrodemolition with robot jetting equipment can provide an efficient and safe alternative method to remove deteriorated concrete from vulnerable structures.

Thanks to the strong and clear bonding surface that hydro demolition produces, the use of hydro demolition can provide additional durability to better strengthen bridges. Thus ,moving the infrastructure industry forward to the innovative step by water blasting solve deteriorating concrete problem.

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