One creative approach to the expanding issue of construction waste is recycling asphalt concrete. Huge quantities of asphalt concrete are thrown away when outdated pavement and roads are replaced. Recycling procedures turn this priceless material into fresh, usable asphalt rather than allowing it to end up in landfills. This lessens the environmental impact of construction projects while also conserving natural resources.
Reclaimed asphalt pavement, or recycled asphalt concrete, is made by combining reclaimed material with aggregate and new asphalt after the old asphalt surfaces have been milled. This approach is economical as well as ecologically friendly. Construction companies can drastically reduce the costs of finding and transporting new asphalt by recycling existing materials.
Moreover, recycled asphalt concrete frequently performs as well as new asphalt, if not better. Thanks to developments in recycling technology, RAP can now be produced with durability and dependability, guaranteeing that pavements and roads made of recycled materials can endure severe weather and heavy traffic.
Globally, the recycling of asphalt concrete is becoming more popular as more industries come to understand its advantages. By implementing these recycling methods, we can reduce waste, foster a circular economy where resources are continuously reused and repurposed, and contribute to a more sustainable construction sector.
Aspect | Details |
Recycling Process | Old asphalt is crushed and mixed with new materials to create recycled asphalt. |
Environmental Benefits | Recycling reduces waste, conserves resources, and lowers emissions from production. |
Cost Efficiency | Using recycled asphalt can be more affordable than new asphalt, reducing construction costs. |
Durability | Recycled asphalt can be just as durable and reliable as new asphalt when processed correctly. |
Applications | Recycled asphalt can be used for roads, parking lots, driveways, and other paving projects. |
- What is a recycler?
- Hot recycling
- What is good about the technology?
- Cold recycling
- Device and principle of operation of the recycling
- What types of recyclers are there??
- PM-107
- EM-3200
- Buy or rent?
- Video on the topic
- Cold and hot regeneration. Recycling foaming bitumen and preliminary addition of cement.
- Cold recycling
- Cold regeneration of asphalt using bitumen emulsion and Cemdor
- Cold regeneration and recycling of asphalt concrete. Ryazan. National resources Voronezh Rostov
- Cold regeneration Recycling of asphalt concrete | Automated complex with one operator.
What is a recycler?
A mobile device called an asphalt concrete recycler turns used asphalt into a mixture for later use. There are two kinds of recyclers: mobile units and hot/cold recycling units. Their primary distinctions from one another are their sizes and processing technologies.
Let’s concentrate on moving parts. There are two reasons why road construction requires these small machines:
- it is cheaper than purchasing new asphalt;
- recycling of used road surfaces is carried out directly on site, used asphalt does not need to be additionally disposed of.
Using asphalt concrete recycling (which you can even rent) to expedite the process, lower costs, and shield the dumps from the buildup of superfluous asphalt makes more sense when overhauling the roadway and replacing the asphalt.
Hot recycling
Every day, asphalt pavement experiences mechanical stress. They are brought on by the volume and intensity of road transport traffic. Surface depletion, holes, and cracks are the outcome. While extending the life of asphalt is vital, doing repairs in the city presents challenges due to their lengthy process and potential to impede traffic. Hot recycling can assist you in regenerating the road surface as soon as possible.
Using infrared radiation batteries, the top layer of asphalt is heated to 150 °C, causing the material to soften. The necessary depth is reached by loosening the road surface. Subsequently, a blend is applied to it, which reinforces and replenishes the canvas’s diminished thickness and characteristics. The mineral and binders make up the corrective mixture. It is combined with recycled asphalt and heated to a high temperature. The completed material is spread out using a special laundry on a heated road. After that, a roller is used to further compact the surface.
What is good about the technology?
- Asphalt is restored in a short time.
- No need to involve a whole team of builders.
- Repair work will take only one day.
Cold recycling
A mobile unit is equipped with a customized suspension. The recycler applies a regenerating mixture to the surface by pushing a mobile mixing unit in front of it. It gives the asphalt concrete more stability and density. A roller is used to compact the mixture’s layer. After that, bitumen emulsion is applied to strengthen the canvas, and it is profiled and re-compacted using a vibratory roller. The technology works well.
- no impact on the environment;
- low energy consumption;
- high-quality regeneration of asphalt;
- preservation of the integrity of the soil.
Cold concrete regeneration technology does not distort the soil and is completed in a single pass through the recycler. In terms of the ratio of cost to quality, this technology is thought to be the most acceptable.
Device and principle of operation of the recycling
The recycler is simple to transport from one job site to another because it is set up like a trailer and is supported by wheels. The following is the procedure for recycling (regeneration) asphalt concrete:
- used asphalt is loaded through the hatch (located in the front part of the equipment);
- an internal combustion engine (gasoline or diesel) starts a special drum in the recycler;
- pieces of old road surface are crushed in drums;
- asphalt is heated during the crushing process;
- a system of blades mixes the heated crushed mixture;
- the mixture is unloaded through the second hatch (located at the rear of the equipment).
Following processing, we are left with an asphalt mixture that is ready to be laid right away.
What types of recyclers are there??
PM-107
Road surface repairs, pothole repairs, and heating the asphalt mixture are all done with the PM-107 recycler. He prepares cast mixtures from inert materials, warms up previously cooked raw materials, and processes old asphalt. One of its features is that it can mix the mixture on-site without requiring a tractor. Principal attributes:
- heating time – up to 15 minutes;
- can load 350 kg of material;
- heating temperature – 200 ° C.
EM-3200
Cast asphalt technology is employed in road repair with the EM-3200 recycler. Feature: trailer-style apparatus that moves with the help of a tractor and motor. loads ready-made cast asphalt mixtures and transports them to the construction site. recycles used asphalt fractions, transports hot bitumen (a material used in road construction), and makes cast mixtures from inert materials. Principal attributes:
- productivity – 1.2 tons / hour;
- fuel tank capacity – 36 l,
Contemporary recycling equipment differs in terms of drum volume, power, and appearance. This establishes the rate at which the road surface is processed in a given amount of time. You can choose the right kind of installation for various kinds of repairs, whether they are small-scale or extensive.
Buy or rent?
You should purchase recycling units if your business specializes in road repair or if you work in this field. You can select the type of recycler (cold, hot, or mobile installation) with the assistance of a sales consultant. Inform him of the reason for the purchase and pay attention to professional guidance. Consequently:
- You will save. If you calculate the savings over several months/years, you can buy a recycler for each employee.
- You will help the environment. First of all, it"s important. Secondly, you will increase the prestige of your enterprise.
- You will speed up the process of regeneration of the road surface.
- You will keep up with the times.
- You will support waste-free production.
Rent a recycler if you only need it for a single use. Investing additional funds on an installation that you intend to use only once is not necessary. A more sensible approach would be to have the company that purchased the recycler order the road surface regeneration service. If you need the device for personal or small business purposes on a regular basis, you can buy it online or from specialty stores. You can choose the type of unit with the assistance of a sales consultant, or you can educate yourself about the features and varieties online.
Reusing asphalt concrete is a crucial aspect of building sustainably. It not only protects natural resources but also considerably lessens the environmental effect of constructing and maintaining roads. We can preserve our natural environment and lessen our carbon footprint by reusing materials to the greatest extent possible. This will minimize the need for new raw materials.
Furthermore, recycling asphalt concrete can result in significant financial savings. The cost of finding and transporting new asphalt is reduced when recycled materials are used. It also lessens the volume of waste that is dumped in landfills, which can save communities money on disposal fees and increase the longevity of landfills already in place.
Recycling asphalt concrete is now more successful and efficient than it has ever been thanks to technological developments. Utilizing contemporary techniques guarantees that recycled asphalt maintains its strength and durability, which makes it a practical choice for a variety of building projects. This implies that we can construct and maintain roads that are equally dependable and durable as those composed of modern materials.
Recycling asphalt concrete will become more and more important as we transition to more environmentally friendly building methods. Accepting this process is a step toward a more environmentally conscious future in which infrastructure development and environmental responsibility go hand in hand. By selecting recycled materials, we help to make building more economical and environmentally friendly.
Recycling asphalt concrete is a crucial procedure that lowers construction costs, conserves resources, and reduces waste. Old asphalt from driveways, highways, and other surfaces can be recovered and processed to make new, high-quality pavement material with the least possible negative environmental impact. This sustainable approach is a wise decision for the environment and the economy because it reduces the need for new raw materials and conserves natural resources.