Doubt construction recycled aggregates stability

As the infrastructure construction in China has intensified, the speed of urban "metabolism" is accelerating. A large number of old buildings were removed, and that replaced by the more grand and beautiful buildings.  At the same time, construction waste is accompanied by this invisible metabolites hinder urban development.
It is understood that we make use of construction waste to produce recycled aggregate and used for the production of concrete and other related building materials. It has become common practice around the world to achieve construction waste resources management. Developed countries have established advanced technical standards of construction waste recycled aggregate, and our coountry has made out the relevant standards to promote construction waste resources work proceeding smoothly.
However, many people questioned the stability of the construction waste recycled aggregate. Therefore, the domestic well-known Crusher enterprises, Zhengzhou Red Star Mining machinery Co., Ltd. director Zhao in Division of construction garbage, told reporters: "There is no way to guarantee recycled aggregate's stablility after a simple crush and filter. If it is expected to be stable, we need to start from the source, according to different material classify and sort construction waste. And then based on indicators, the materials are fine sorted, and finally they get through the construction waste disposal equipment for crushing, grinding, preparation and molding. Only in this way can the recycled aggregate be ensured relative stability. "
Therefore, for this question, let us know about the role of the crusher plays in the construction waste. The crushing method is based on the physical properties of the material, the material block size and required level of detail.  For hard materials, we use the method of extrusion, bending and splitting; And for brittle materials, the impact and splitting should be used; If material block is large, splitting and bending is avaliable; If materials block is small or discharge particle size requirement is small, and should be used. If crushing method was choose incorrctly, it is likely to crush difficult or excessive crush, both of which will increase the energy consumption in the process of crushing.
After digestion process and the technical processing, urban construction waste can be used as recycled aggregate. It not only solves the problem of shortage of natural aggregate resources and protects the ecological environment of the aggregate origin, but also solves the issues such as urban waste piling up, covering, and environmental pollution. And finally we can realize material recycling of construction waste to ensure the sustainable development of the construction industry.