Project description
Breaking up concrete has never been easier than with expanding explosives. This chemical solution is based on the controlled expansion of specially formulated substances that specifically break up the concrete. Instead of using heavy equipment or explosive material, swelling explosives use the natural force of pressure to break concrete into manageable fragments. The special thing about this method is that it is explosion-free, generates no vibrations or shocks and poses virtually no risk to the environment. Swelling concrete is often used in confined, densely built-up areas where traditional demolition methods are not an option due to the risk of damage or noise emissions. The targeted disintegration of concrete with swelling explosives means that even complicated demolition work can be carried out safely and precisely.
Project schedule
The entire process of crushing concrete with swelling explosives begins with careful planning. The concrete surfaces to be processed are first analyzed to determine the exact dimensions and structure of the material. Depending on the type and thickness of the concrete, different drilling techniques and quantities of swelling explosives must be used. 1. drilling the holes:
The first step is to drill precise holes in the concrete. These holes are necessary in order to be able to introduce the swelling explosive. The diameter of the drill holes usually varies between 25 mm and 45 mm, with larger diameters generating a stronger expansion force and thus leading to faster disintegration of the concrete. The borehole spacing is usually ten times the size of the borehole, which enables the swelling explosive to be distributed evenly. 2. filling with swelling explosive:
Once the boreholes have been drilled, the swelling explosive is filled into them. The mixing ratio of swelling concrete and water is 1.2 liters of water to 5 kg of swelling explosive. The correct mixing ratio is crucial for uniform expansion and efficient decomposition of the concrete. As soon as the swelling concrete is activated, the expansion process begins, breaking up the concrete in a controlled manner. 3. expansion and crushing:
The expansion force of the expanding explosive creates enormous pressure inside the concrete, which breaks it up and breaks it into smaller pieces. The advantage of this method is that the fragments are not created randomly, but in a targeted manner, so that the concrete disintegrates into manageable, easily disposable pieces. This process takes place without loud explosions or vibrations, which significantly increases safety for workers and the surrounding area. 4. removal and disposal:
Once the concrete has been broken into smaller pieces, these can be easily removed and disposed of. Thanks to controlled crushing, there is no large debris that is difficult to handle. This speeds up the entire demolition process and reduces disposal costs.
Drilling information
The precise drilling of the concrete surface is crucial to the success of the entire process. The choice of the correct drill hole diameter has a direct influence on the expansion force of the swelling explosive and therefore on the speed of crushing. Here are some important details about the drilling requirements: Drill hole diameter:
The diameter of the drill holes should be between 25 mm and 45 mm. Smaller boreholes produce finer crushing, while larger boreholes allow the concrete to break down more quickly. Drill hole spacing:
The spacing between the drill holes is usually ten times the diameter of the drill hole. Closer spacing results in faster cracking and smaller fragments, while wider spacing results in fewer but larger fragments. Drill hole depth:
The depth of the drill holes should be at least five times the drill hole diameter. This ensures that the swelling explosive can work evenly and effectively.
An experienced professional will be able to place the drill holes and dose the swelling explosive correctly to achieve the desired demolition process efficiently and safely.
Consumption
The consumption of swelling explosives varies depending on the borehole diameter and the amount of concrete that needs to be crushed. The average consumption is around 10 kg of swelling explosive per cubic meter of concrete. Here is an overview of the material consumption per meter of borehole, depending on the borehole diameter: 25 mm diameter: 0.9 kg of swelling explosive per meter of borehole
30 mm diameter: 1.24 kg of swelling explosive per meter of borehole
35 mm diameter: 1.68 kg of swelling explosive per meter of borehole
40 mm diameter: 2.2 kg of swelling explosive per meter of borehole
45 mm diameter: 2.78 kg of swelling explosive per meter of borehole These values are estimates that can be adjusted depending on the specific project and type of concrete. Compared to other demolition methods, the amount of material required is relatively low, which minimizes the costs of the demolition process.
Time / Costs
The time and cost of crushing concrete with swelling explosives depends on the size of the project and the complexity of the demolition. However, a major advantage of this method is the time saved. Compared to traditional demolition methods that require the use of machinery, the use of swelling explosives is significantly faster as the concrete is crushed efficiently and no heavy machinery needs to be operated. In terms of cost, the use of swelling explosives is generally cheaper than the use of explosives or heavy machinery. Swelling explosives are a cost-effective solution as the materials can be mixed and used directly on site and no additional expensive demolition equipment is required. Disposal costs are also minimized due to the precise crushing, as the fragments are manageable and easy to transport.
Expert opinion
Crushing concrete with explosives is a modern, safe and efficient method that offers many advantages over traditional demolition techniques. The explosion-free technology is particularly advantageous in inhabited or sensitive areas as it does not create vibration, noise or danger to the surrounding area. The process is simple, fast and cost-effective and results in small, easily disposable fragments. Thanks to the high precision achieved with swelling explosives, you can crush concrete in a controlled and safe manner without having to resort to heavy machinery or risky explosives. This method is suitable for both smaller demolition projects and larger, more complex tasks and has established itself as one of the best alternatives to conventional concrete demolition.
Customer review
We decided to use swelling explosives to demolish some power pole foundations and are delighted with the results. The method was not only fast and safe, but also very cost effective. The concrete was crushed without vibration and we were able to dispose of the fragments easily. A great solution for our demolition work!