Most of the construction waste are solid waste, in general, there are two ways to generate construction, one generate in construction, the other generate when construction being required or dismantled. The content of the various components of waste generated by the different types of construction is different, but the basic composition is consistent,for example, soil, sediment,scattered mortar and concrete, tick chisel brick and broken concrete, reinforced concrete piling under the cut pile head, the waste generated by the metal, bamboo,wood, decoration waste, packaging materials and other waste. According to related reports, through the analysis of the loss of the brick structure, all the cast-in-situ structure and the frame structure of the building construction materials, there are about 500-600t construction waste in per the thousand square meters.
The processing methods of old construction waste
The main processing method of construction waste it to make it in undergroud, the damage are as follows:
- Firstly, it takes up much of the land. Construction waste can occupy land resources, reduce soil quality, and make land rehabilitation difficult.
- Secondly , it pollutes the environment seriouly. The construction glue, coating, paint are not only difficult biodegradation polymer materials, it also contains harmful heavy metal elements. These building wastes buried in the ground, and they can cause the pollution of groundwater and immediately harm to other people's life.
- Thirdly ,it destories the soil sttucture, resulting in surface subsidence. The previous landfill method is: the building waste buried in eight metres deep, after that, it also add two metres soil, however, it is hard to grow vegetation. The surface area and landfill then can produce the settlement and subsidence, it needs a long time to achieve stable state.
Construction waste renewable technology
By sorting, eliminate waste or smash, the construction waste can largely use as the renewable resources, such as, by sorting, centralized, re-blows again, scrap steel, scarp iron wire, scarp electrical wire and scrap steel fittings and other metal can again processing manufacturing into various specifications of the steel;bamboo wood waste can be used to make artificial wood; after the crushing, the brick,stone, concrete waste can be used for bonding mortar, plastering mortal,dozen concrete cushion, etc, what is more, it also can be used to brick making, spread word brick, beautiful case, brick building materials products.
Construction waste pile up compared concentrated, and sites are limited, so it is good to use construction waste crusher. This equipment can crush large multistage materials. The equipment cover a small area land, so it can save a lot of infrastructure and relocation expenses;the material can be broken on the scene, so it need not bring it away the scene, as a result, it has a significant reduction in transportation costs of materials; construction waste crusher can be modified based on the actual site design, so it is very suitable for building waste crusher.
Vipeak mobile crushing plant is widely used in mining, coal mine, garbage and dredging engineering and urban infrastructure, road or construction sites working, especially construction waste recycling.The combined mobile crusher can finished crushing and screening one time to the materials, to avoid the medial step too much by more than one set mobile type, also can highly reduce the difficulty of installation, truly reached when arriving, when can using, convenient, flexible and quickly. The purchase cost will be reduced, also the labor cost, electric cost and operating cost compared with fixed crushing line is very low.