There are two types of construction waste: Inert construction waste, Non-inert construction waste. Non-inert construction waste is around 20% of the total and usually comprises bamboo, timber, vegetation, packaging waste and other organic materials. Some of these can be recycled while others are disposed of at landfills. In contrast, inert waste – otherwise known as public fill – mainly includes construction debris, rubble, earth, bitumen and concrete, aggragate, which can be used for land formation. Materials like concrete and asphalt can also be recovered for construction use.
Construction waste is anything generated as a result of construction and then abandoned, regardless of whether it has been processed or stockpiled. It comprises surplus materials from site clearance, excavation, construction, refurbishment, renovation, demolition and road works.
The impact of construction waste
The influence of construction waste to environment is featured with university, vagueness and hysteretic nature. So we need construction waste recycling.
Waste land space and debasing the soil quality
As the increase of construction waste in city, the number of construction waste pile-up spot becomes larger and so do the size of each spot. What’s more, for a variety of external result, the air storage construction waste can fall into oil nearby and they will destroy soil structure.
Affecting the air quality.
Under temperature and humidity condition, the waste pile will distribute some harmful gas; some rotten waste throws off strongly smell, and bacterium and stive from the spot will fly with the wind; a few building construction waste will give out the deleterious substance and lead to the second-pollution to atmospheric environment.
Pollution to waters.
With the operation of ferment, rainwater, surface waters and ground water, the poisonous parts of the waste will inflow to surface waters and ground water, which is used by city human.
Destruction city’s appearance environment.
City construction waste occupies large size of space and is in a muddle, which destroys the image of city. And construction waste pile is usually the health corner.
Potential safety hazard.
Because of the unbending choice of pile spot, Potential safety hazard influence people’s daily life.
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