Asphalt recycling and soil stabilization/substructure solidification
Significantly greater loads, due to the ever larger and faster machines and tractors, cause considerable damage to asphalted farm roads. Asphalt recycling with mounted milling machines is a sensible way of repairing dilapidated asphalt roads. The asphalt roads are recycled (milled) with the aid of cultivation milling machines and the resulting milled material is reused and installed on the spot. Binding agents e.g. (lime – cement mixtures) are worked in and compacted with the RBM milling machine to a depth of up to 40 cm, thereby creating a load-bearing substructure for a new asphalt surface course or a gravel layer as a road surface and wearing course.
The use of recycled asphalt significantly extends the life of roads and streets and reduces the need for new asphalt roads. At the same time, the cost of repairing and maintaining paths and roads is significantly lower than using new asphalt.
Soil stabilization/substructure solidification
Asphalted roads can also be repaired with soil stabilization. This involves mixing various materials such as lime or cement into the soil to increase the load-bearing capacity and better distribute the loads on the pavement. Stabilizing the subgrade is an important measure to protect the asphalt pavement in the long term and prevent damage.
Soil stabilization is an important part of construction and infrastructure projects. By improving the load-bearing capacity of the soil, roads, foundations and buildings can be built more safely and last longer. Soil stabilization also helps minimize the effects of ground movement and erosion, which helps protect the environment.
Thanks to modern HEN technologies, soil stabilization is an effective and cost-efficient solution for keeping asphalt roads in good condition.
The advantages of asphalt recycling
- Conservation of resources: Asphalt recycling reuses the old asphalt material and thus conserves resources. This saves new raw materials and reduces CO2 emissions from transporting new material.
- Cost efficiency: By reusing the old asphalt material, costs can be saved that would be incurred if new asphalt were produced.
- Time savings: Because the old asphalt material can be recycled directly on site, there is no need to transport new material, thus saving time.
- Environmental friendliness: Recycling asphalt reduces the environmental impact because less new material has to be produced and transported.
- Quality: Mixing new binder and old asphalt material can produce a more uniform and stable mix, resulting in a higher quality asphalt pavement.
The advantages of soil stabilization
- Improved bearing capacity: Soil stabilization increases the bearing capacity of the soil, making it more suitable for the construction of roads, foundations, buildings or other infrastructure projects.
- Prevention of soil settlement: Stabilized soil is less prone to settlement and cracking, which means a longer life for the underlying structures.
- Cost savings: Soil stabilization can be a cost-effective alternative to other methods such as soil replacement, saving time and money.
- Environmental friendliness: Soil stabilization reduces the need for new material, minimizing the environmental footprint of construction projects.
- Fast implementation: Soil stabilization can usually be carried out quickly, reducing construction time and minimizing disruption to residents and road users.
HEN MOUNTED MILLING MACHINES: FLEXIBLE AND EFFICIENT FOR ASPHALT RECYCLING AND SOIL TREATMENT
The stone milling machines are used for asphalt recycling, as stone crushers, stabilization milling machines and recultivation. Larger stones are crushed to a grading curve of 0-50 mm, thus creating a homogeneous and stabilizing soil structure. The milling machines for soil treatment are flexible and can be used for recycling, crushing and mixing. The treatment of asphalt pavements is possible with HEN RBM milling machines without prior ripping or pre-digging, the milling machines can penetrate directly into the asphalt surface. Water is injected directly into the soil by the HEN soil injector to produce the optimum moisture level, which plays a very important role in subsequent compaction. A new wearing course of asphalt or mineral gravel is then applied, profiled and compacted. The recycling process saves raw materials and resources, and logistics, e.g. truck transports, and thus also Co2 emissions are considerably reduced. No new mineral mixture is necessary for the construction of the road, so there are significantly fewer logistics and transport trips. The HEN mounted milling machines are available in different sizes, carrier vehicles mostly tractors from 140 to 500 HP can be used depending on the milling depth and size of the mounted milling machine.
HEN AG products
HEN soil injector
The HEN soil injector is designed to be attached to liquid containers via the rear linkage of the tractor. It contains a suitably upgraded water vacuum drum. It is floated and injects water into the material ready for consolidation.
>>Lear more about the HEN soil injector
The HEN cultivation tiller RBM-S is used to crush branches, brushwood, stones, roots and other useless material and to process the soil so that it can be used again.
>>Learn more about the HEN RBM-S