Recycled sand and gravel aggregates are aggregates made by crushing and screening waste concrete, stones, etc. in construction waste. In recent years, my country has vigorously promoted the construction of new towns and infrastructure, and the demand for sand and gravel resources has increased day by day. Recycled sand and gravel aggregates have replaced natural sand and gravel, which can not only achieve real sustainable development, but also achieve ecological environment. Protect and reduce resource costs.
Construction waste is mainly inorganic non-metallic materials, and the content of calcium, silicon, etc. is high, and the strength is also good, so it can partially or completely replace natural aggregates as raw materials for concrete. Compared with ordinary concrete, recycled concrete mixture has the advantage of low density, which can reduce the weight of the building and increase the construction span, which is conducive to the use in actual projects. In addition, the surface of construction waste is rough. When used as aggregate, the mixture can be mixed and the friction force during the pouring process is increased, which effectively improves the workability and cohesion of concrete.
The fine powder produced by the crushing of waste bricks can be used as inert mineral powder to fill concrete, which obviously improves the workability and compactness of concrete, and effectively improves the strength of concrete. In order to make better use of recycled aggregates and solve the status quo of construction waste, it is basically based on the principle of "disposal nearby" to sort, remove or crush the waste in construction waste so that renewable resources can be reused. Coupled with the flexibility of the combination, whether it is "crushing before sieving" or "screening before smashing", it can ensure that the construction waste is crushed and reused with minimal waste. At the same time, because of its strong mobility, it saves a lot of infrastructure and relocation costs.
Which gravel aggregate crusher is better for recycled sand and gravel aggregate? The crawler mobile crushing plant is recommended here, which has the following advantages:
1. Meet different needs
There are two types of mobile crushing stations, crawler type and tire type, with different models and types of crushers, which can meet the crushing needs of different materials, and the discharge can also be adjusted according to requirements.
2. Save investment costs
In terms of energy consumption, the mobile crusher adopts advanced technology to save fuel and electricity; in terms of installation and demolition, there is no need to build foundations or transportation. Just reasonably assemble the crusher to go on the road, which can save a lot of money expenses; in terms of operation, the entire work flow is smoothly discharged, stable in operation, convenient in operation and adjustment, low in failure rate, and low in operating costs.
3. Low site requirements
The mobile crushing station is capable of crushing operations in various sites because of its strong mobility, because it can be opened to the site for operations without infrastructure.
4. Good environmental protection effect
The crushing and screening processes of the mobile crusher are all carried out inside the equipment, with good sealing effect, and also equipped with professional dust and noise reduction devices; direct operation into the processing site to avoid secondary demolition of construction waste during transportation pollution, reduce pollution to a lower limit, and have a good environmental protection effect.