recycling concrete machinery espana

construction and demolition waste: disposal management problems and recycling solutions | fote machinery

construction and demolition waste: disposal management problems and recycling solutions | fote machinery

The construction and demolition waste is produced in the building activities of the construction industry, such as demolition, construction, decoration, and repair. C&D materials often contain complex compositions such as concrete, asphalt concrete, metals, bricks, glass, plastics, etc.

As more and more countries pay more attention to people's well-being, infrastructure construction develops fast, producing many new buildings or roads while demolishing many old houses. The rapid growth of infrastructure construction causes continuously increased construction and demolition waste.

Although industry waste landfill is the place to put various solid industrial waste, it is mainly used for construction and demolition waste disposal. To save costs and not to complicate matters, many people often directly bury construction waste in landfills.

On the one hand, due to the general upward trend in urban land prices, the cost of landfilling has increased. On the other hand, the advancement of the urbanization rate has caused a shortage of urban land, shrinking the overall supply of infrastructure land and limiting the landfills.

Incineration has become another option for the disposal of construction and demolition waste. However, waste incineration not only produces organic pollutants and toxic gases such as dioxins, carbides, nitrides, and sulfides but remains solid residues such as combustion fly ash and slag.

Recently, governments have begun to launch regulations about environmental protection and encouraged people to turn construction and demolition waste into new-type aggregate by recycling machines like mobile or portable rock crushers.

Screening. This part mainly involves the iron removal operation of the finished construction waste after the crusher treatment and re-processing the materials that don't meet the production requirements.

With the people's environmental awareness and the government's guidance, the application of resource-based products will have a broad market. The management of construction waste will be smoother, and our environment will be more beautiful.

Asphalt made by combining a binding material (called a bitumen) with an aggregate becomes sticky at high temperatures, and coupled with the limitations of previous technologies, people usually think that waste asphalt is worthless.

The cost benefits of asphalt recycling are expected to provide a profit or savings potential of $30.00 to $80.00/ton. Naturally, product quality depends on the combination of ingredients used in the recycling and production process.

Gypsum possesses many attributes making it an attractive construction material. Plaster and gypsum board recycling can not only solve the shortage of resources, but also save a lot of costs and improve resource utilization.

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

5 types of concrete crushers for recycling concrete blocks | fote machinery

5 types of concrete crushers for recycling concrete blocks | fote machinery

Concrete block often appears after building and bridge demolition, which will cause problems like pollutions and land waste. There are mainly 5 types of concrete crushers like portable concrete crusher, mobile concrete crusher, small concrete crusher, excavator concrete crusher and bucket crusher, so you have to choose the right crushing machine according to your own situation.

A portable stone crusher, a wheeled-mounted crushing machine, is a perfect machine for processing concrete waste because of its strong flexibility. Concrete recycling manufacturers always know that if they choose to set up a fixed crushing line, they have to pay more time, money for labor and transportation.

A portable crusher can load various fixed crusher machines like fixed jaw crusher, impact rock crusher, hydraulic cone crusher, etc. Therefore, it is a mobile crushing plant integrating crushing equipment, conveyor, and power control equipment. It can last for 20,000 hours under difficult conditions while 30,000 hours under normal conditions, and then needs to be overhauled so that its service life can be extended.

This Indian customer purchased FTM938HD80 portable jaw crusher, portable impact crusher, and portable stone screener. These machines can not only produce a wonderful cubical shape of products but greatly reduce labor and transportation cost. The original plan was to require three people to spend about half a month fully installing a fixed crushing production line. In addition to transportation costs, the total cost was really expensive.

It can be seen from the table that Fote portable concrete crusher helps customers save costs, improves production efficiency, and brings objective profits to customers. If you are interested in this equipment, you can consult and quote to obtain detailed information about the equipment.

Compared with the tire-type concrete crusher, the unique feature of the mobile crusher is that it uses a crawler or tracked mounting way, which makes it 100 percent free movement and to be operated by remote control.

This British customer ordered a mobile jaw breaker and mobile impact in December last year, but due to the covid-19, he couldn't come to the factory to buy it in person. The sales team of FTM Manufacturer introduced him to detailed equipment information online and provided him with the best solution based on its output, size and other requirements. After talking, he was very satisfied and then purchased machines online in March 2020.

Small concrete crushers are mainly used for crushing with small output, and most of them are jaw crushers with fixed and mobile types. The feed size of the small concrete crusher is not very large, so it can only process smaller concrete materials.

Excavator concrete crusher can make it easy to process concrete mixed with mud and scrap. It is made of high-strength wear-resistant steel, which can be directly installed or hooked to the excavator, which greatly improves the versatility of the excavator.

It is mostly used for the removal of concrete slabs, walls and bridge decks. The jaws of this crusher can be operated without any hydraulic pressure. The crushing process depends on the pressing forces created by movable front jaw and fixed rear jaw, which can separate the concrete from the steel bar and crush the concrete at the same time.

It is also an ideal attachment for recycling different materials. You can just mount the crusher on a wheel loader to demonstrate the outstanding performance of this attachment on reinforced concrete. Usually, one of the most difficult materials to recycle is wood scraps mixed with metal parts.

As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.

Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.

can old concrete be crushed for recycling? - ftm machinery

can old concrete be crushed for recycling? - ftm machinery

Out of the total construction demolition waste, 40% is concrete. Fortunately, concrete can be crushed for recycling and many countries have already done so. It is estimated that about 140 million tons of concrete are recycled each year in the U.S. alone. What attracted the United States to develop concrete recycling so vigorously? How to recycle concrete? How can you use crushed concrete?

There can be a huge difference between the costs of new materials and recycled concretes. Of course, recycling concrete by crushing drags down the cost for buying raw materials or gravel mining and its also less expensive than freshly-mined concrete.

Itll cost a lot to remove and haul away old concrete from a construction site to landfill, so recycled concretes also reduce the costs of transporting and disposing. It is more cost-effective from this point by using recycled concretes.

For every 10,000 tons of construction waste generated, at least 1 acre of land needs to be stacked. It not only wastes a lot of valuable land resources, but also a large sum of money on the land costs. Using crushed concretes saves increasing landfill costs because old concrete takes up so large space in the landfill.

On the other hand, natural sandstone, which belongs to non-renewable resources will soon face a shortage if unrestricted collection. Then, the development of waste concrete recycling becomes the key to solving the problem.

Crushed concrete, known as a green building material, is environmentally friendly. You give new life to unwanted concrete and require very little processing to produce it. Using recycled concrete can reduce the pollution involved in transportationand mining. It is reported that recycling one ton of concrete could save 900 kg of CO2.

Some people may worry about whether the quality of recycled concrete can meet the requirements of actual production. We have done research on this issue, and the results are quite satisfactory. Although the bulk density of recycled aggregate is lower than that of natural aggregate, it meets the requirement of construction generally. Moreover, cost and resources are significantly saved and the environment is protected.

The mobile rock crusher, either driven by tire or crawler, is the ideal option for concrete recycling because of its superior on-site mobility. With mobile crusher on sites where several moves are required, there is no need for special infrastructure or any external power sources, making it easier and cheaper for your organization to recycle.

Jaw Crushers - Most recyclers use a jaw crusher for primary crushing because it can handle large pieces of concrete and residual reinforcement. An excavator loads the concrete into the jaw crusher then it chew the larger chunks of concrete into smaller pieces. It reduces concrete to 60-80 mm which can be usually used as fill.

Cone Crushers - Cone crushers can also be used behind the jaw crusher and the crushed concrete produced by it passes through screens that separate the aggregate into sizes greater than 20 mm and 10-20 mm. The plus 20 mm material is fed back into the secondary crusher in either case until it is reduced to 10-20 mm which can be used as roadbase.

It is reported that 1108t of waste concrete is recycled in the form of recycled aggregate every year, accounting for 5% of the total aggregate. Whats more, recycled concretes can be used extensively. About 68% of the recycled aggregate is used for road base and foundation, 6% for new concrete, 9% for asphalt concrete, 3% for slope protection, 7% for general backfilling, and 7% for other applications.

The fines content of recycled concretes may restrict drainage, particularly in road sub-base applications. However, the fines also facilitate compaction in some jurisdictions. The use of recycled materials is often preferred for this reason.

The biggest application of recycled concrete aggregate is a substitute for new asphalt pavement aggregates, which can be used as aggregate base in road construction. It can be widely used in sidewalks, driveways, alleys, residence and so on, serving as a reliable bed or stable foundation.

Crushed recycled concrete also shows high marketability being used as the dry aggregate for new concrete, which is extremely amazing. Because the demand for concrete is huge for its wide application in construction and a concrete boom is undoubted. By 2050, the world is expected to need between 3.8 and 4.6 Gt (IEA, 2010) concrete a year from 2.77 Gt in 2007 (USGS, 2008).

Crushed concrete can have pozzolanic ability, so the fines of crushed concrete can play a stabilizing role. Larger particles play a larger role by increasing the grain size of the soil and the efficiency of bettering the gradation can be tested by CBR-test.

So where soil stability issues exist, the bearing capacity of the foundation can be increased by incorporating recycled aggregate, lime or fly ash. Recycled crushed concrete is a great option for improving stability by changes the water sensitivity of the roadbed.

Recycled concrete is therefore a permanent solution in landscape settings for its flexibility in terms of shape, color and texture including waterscape, paving stones, boulders/stacked rocks, plantation sites, retaining walls, etc. after properly crushed and well sorted.

In terms of economical bank-protection structures, the use of recycled concretes is desirable, especially in developing countries. They can be banded together forcefully and partially or completely buried on unstable slopes.

ways to recycle and reuse concrete

ways to recycle and reuse concrete

The early phases of many construction projects involve the demolition of concrete foundations, sidewalks, driveways, and other concrete structures, which can leave a contractor with a sizable volume of heavy, dense materials to deal with. Fortunately, concrete can be recycled and reused in many ways. Typically (but not always) the process involves crushing or pulverizing the concrete rubble near the demolition or building site. Choosing the best method often depends on the size and shape of the concrete pieces to be recycled. Reusing concrete can a good way to reduce construction costs while providing some benefits to the environment. Recycled concrete not only stays out of landfills, but it also replaces other materials such as gravel that must otherwise be mined and transported for use.

Recycling concrete helps reduce construction waste and extend thelife of landfills as well as saving builders disposal or tipping fees. It also reduces transportation costs because concrete can often be recycled in areas near the demolition or construction site. If builders are seeking LEED Green Building certification, they can receive points for using recycled concrete. In some instances, new employment opportunities arise in a recycling activity that would not otherwise exist.

Concrete is recycled by using industrial crushing equipment with jaws and large impactors. After the concrete is broken up, it is usually run through a secondary impactor and is then screened to remove dirt and particles and to separate the large and small aggregate. Additional processes and equipment, such as water flotation, separators, and magnets, may also be used to remove specific elements from the crushed concrete. An alternative method is to pulverize the concrete, but this is not the always the best option, as it makes it harder to complete the separation process and may leave more contamination from smaller byproducts.

When considering concrete recycling as an option, you will also need to evaluate the options available for crush the concrete. The most practical solution can be a portable crusher that can be moved to different locations or projects. Often, it works best to set it up a portable crusher at a centralized location, near where the concrete is being demolished but where it will not hinder site traffic. Factors to consider when choosing processing equipment include:

bluerock recycling | scrap metal recycling machinery | madrid, espaa

bluerock recycling | scrap metal recycling machinery | madrid, espaa

We believe in a future of innovation and recycling, were both are necessary for us to live in an environmentally-friendly world. That's why we create all of yourscrap processingneeds that can be fulfilled with our technology.

resonant machines

resonant machines

Resonant Machines has been operating since 1984 as a subcontractor on highways and airport runways throughout the United States and Internationally. Headquartered in Kansas City, Missouri, RMI has the capability to serve the global construction industry. As the equipment manufacturer of the proprietary resonant technology, RMI has helped lead the industry in sustainable road rehabilitation. To date, RMI has completed jobs in 45 states and has rubblized roads in Europe, China, Russia, Canada, Central and South America.

Each Resonant Machine is capable of breaking concrete up to 26 inches thick at a rate of approximately One Lane Mile per Day (7,000 sq yd). The resonant technology is vastly different from any other option on the market.

Rubblizing isnt just a job. With every project we undertake, we set the bar high and provide the best people and equipment in the industry, with a pride in what we do to make our Customers projects a success.

zerma machinery & recycling technology - granulator, shredder, slow-speed granulator, pulverizers, recycling technology

zerma machinery & recycling technology - granulator, shredder, slow-speed granulator, pulverizers, recycling technology

With over 70 years of experience, ZERMA is one of the leading manufacturers of high-quality size reduction equipment. The extensive range of machines covers the entire spectrum of size reduction technology. Starting with beside the press granulators to soundproof granulators, high performance granulators to heavy duty shredders. The product range is rounded off by special machines, pulverizers, suitable accessories and spare parts.

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