What are the different methods of concrete demolition?

Frequently Asked Questions

What are the different methods of concrete demolition?

There are several different methods of concrete demolition, including mechanical demolition, hydraulic bursting, and chemical demolition. Mechanical demolition involves the use of specialized equipment such as excavators, bulldozers, and jackhammers to break down the concrete. Hydraulic bursting uses hydraulic power to break the concrete from the inside, while chemical demolition involves the use of chemicals to dissolve the concrete. The method chosen for a specific project depends on various factors such as the size of the structure, accessibility, and environmental considerations. A professional demolition company can advise on the best method for a particular project.
  1. Mechanical Demolition: This is one of the most common and straightforward methods of concrete demolition. It involves the use of heavy machinery like wrecking balls, jackhammers, sledgehammers, and bulldozers to physically break the concrete. Excavators and pneumatic hammers may also be used. This method is effective but can be noisy, dusty, and pose safety risks if not properly managed.
  2. Hydraulic Bursting: This method involves drilling holes into the concrete and inserting hydraulic bursters. These bursters apply extreme pressure to the holes, causing the concrete to crack and break apart from the inside out. This method is preferred when noise, dust, or vibration need to be minimized, such as in populated or sensitive areas.
  3. Chemical Demolition: In this method, expansive grout or chemicals are used to break apart the concrete. The chemical is mixed with water and poured into pre-drilled holes in the concrete. As the chemical reaction occurs, it expands, creating pressure that causes the concrete to crack and break. This method is quiet and doesn’t produce vibrations, making it suitable for interior demolition or in locations close to sensitive structures.
  4. High-Pressure Water Jetting: This involves using water at very high pressure to erode and disintegrate the concrete. This method is effective, environmentally friendly, and reduces dust, but it also can be more time-consuming.
  5. Explosive Demolition: This is often used for large structures where other methods would be too time-consuming or costly. It involves the use of explosives placed in strategic locations throughout the structure. The explosives are detonated in a specific order to control the fall of the structure. This method requires a high degree of expertise and is subject to strict regulatory controls due to the obvious risks.
  6. Thermal Lancing: Also known as burning bars or lance bars, this method uses a tube filled with combustible material to cut through concrete. Oxygen is blown through the tube, igniting the material and creating an extremely high-temperature flame capable of melting through the concrete.

The choice of demolition method depends on the nature of the project, including the size and location of the structure, the surrounding environment, budget constraints, time limits, and regulatory requirements. Therefore, it is always recommended to consult with a professional demolition contractor who can recommend the most suitable method for a particular project.

What are the different methods of concrete demolition? faq - The Junk Guys
Concrete Demolition

If the deck had structural issues or if you plan to build a new structure in its place, it is advisable to have the area inspected by a professional to ensure that the site is suitable and meets safety requirements.

After demolition, thoroughly clean the area, removing any remaining debris, nails, or screws. Inspect the site for potential hazards, fill any holes, and restore the area to its previous state or prepare it for a new project.

It is important to wear protective gear, including gloves, safety goggles, and sturdy footwear. Use caution when working at heights and be mindful of potential electrical and structural hazards.

One approach is to rent a dumpster specifically designed for construction waste and have it placed on-site for easy disposal. Alternatively, you can arrange for a waste removal service that specializes in construction debris to collect and dispose of the materials. It is essential to ensure that the disposal method complies with local regulations and environmental guidelines, promoting responsible waste management practices.

The duration of deck demolition can vary depending on several factors, including the size and complexity of the deck, the materials used, and any additional obstacles or challenges encountered during the process. On average, a small to medium-sized deck can take anywhere from a few hours to a couple of days for complete demolition. However, larger or more intricate decks may require more time, potentially extending the demolition process to several days or even longer.

If hidden damage is discovered during deck demolition, it is important to assess the extent of the damage and determine the appropriate course of action. Consult with a certified home inspector to evaluate the damage and provide guidance on repairs or replacements. They will have the expertise to address the hidden damage and ensure the structural integrity and safety of the deck or any affected areas.


We specialize in Small Scale Demolition: From tile flooring to basements, tenant improvement, retail store demolition to warehouse selective demolition including garages and mobile homes, we’ve done hundreds of demolition and deconstruction projects. On time, on budget and ready for the next contractor.

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Have an out of the ordinary project? Something you may not be sure how to get rid of? We specialize in all sorts of challenging projects. We handle all sorts of things like oversized item extraction, satellite dishes, oversized appliances, piles of dirt or concrete. If it’s a tough job, we’re the team to call.



A lot of us try our best to recycle responsibly but the bottom line is that if it doesn’t pay, save money or is convenient to recycle whichever product it is- it doesn’t happen. We do it anyway. We put in the time and effort to make sure everything is recycled properly. Everyone on our team has kids, and we’re committed to doing our part to try and make the future better for them, doing what we do.


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