Construction waste also has resource attributes: first, more than 95% of engineering waste and demolition waste can be reused or recycled.
Planned cities: Beijing (Beijing), Tianjin (Tianjin), Heilongjiang (HEI), Jilin (Ji), Liaoning (Liao), Hebei (Ji), Henan (Henan), Shandong (Lu), Shanxi (Jin) and Shaanxi (Shaanxi) , Inner Mongolia (Inner Mongolia), Ningxia (Ningxia), Gansu (Gansu, Gansu), Xinjiang (Xinjiang), Qinghai (Qinghai).
Construction waste can be used to produce recycled aggregate for direct use, and can also be made into various recycled products, which are widely used in building materials, road materials, water treatment and sponge city construction.
It is urban development At a certain stage and scale, it will highlight and solve the problems that must be solved.
How to solve these problems of construction waste is an impossible task for urban managers Only by correctly understanding and dealing with the relationship between construction waste and urban development can we avoid and reduce the harm caused by construction waste and prolong the cycle of urban construction and operation..
In March of the same year, the Ministry of housing and urban rural development issued a notice and decided to carry out pilot construction waste treatment in 35 cities such as Beijing.
31% of the areas have made clear provisions on the resource utilization of construction waste.
Second, it pollutes the water, soil and atmosphere and destroys the ecological balance.
It seriously affected the urban and rural human settlements and city safety operation, and the city’s high quality development, and restricted the city’s sustainable development.
Based on the natural accumulation height of 5 meters, 10000 tons of construction waste covers an area of 2 mu.
Third, it increases the cost of urban management and construction.
In the government work report in 2018, it was proposed to strengthen the classified disposal of solid waste and waste.
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Correctly understand construction waste.
At present, driven by the pilot work, the resource utilization of construction waste has been highly concerned by all sectors of society and included in the agenda of governments at all levels According to the agenda, many cities have achieved preliminary results.
In particular, with the rapid development of urbanization in China, a large number of construction waste is generated.
We started in Chengdu and took Shu as the mainland.
The 2019 government work report once again proposes to “strengthen the classified disposal of solid waste and urban waste”.
Tibet (Tibet), Hubei (Hubei), Anhui (Anhui), Jiangsu (Jiangsu), Shanghai (Shanghai), Zhejiang (Zhejiang), Fujian (min), Hunan (Hunan), West Jiangsu (Jiangxi), Sichuan (Sichuan, Sichuan), Chongqing (Chongqing), Guizhou (Guizhou, Guizhou), Yunnan (Yunnan, Yunnan), Guangdong (Guangdong), Guangxi (Guangxi), Hainan (Hainan), Hong Kong (Hong Kong), Macao (Macao), Taiwan (Taiwan).
Since 2013, the annual production of construction waste in Shenzhen has been 100 million cubic meters, which is predicted to reach 2035 The same amount of construction waste will still be generated every year in 2017.
It is a company registered with Chongqing Administration for Industry and commerce, specializing in new, additional, promotion and extension of various construction engineering materials, acting as safety production permit and providing talent services for construction enterprises (first class and second class production engineer, middle and high-grade engineer, technician certificate, etc.) I.
Relationship with urban development Our existing projects, regardless of their service life, will turn into construction waste sooner or later.
Zhaocaimao headquarters is located in Chengdu, Sichuan, a “Little Hong Kong” in Southwest China, enjoying a “land of abundance” Laudatory name.
Com) for short.
At present, there are more than 500 employees, the proportion of professional and technical personnel is more than 60%, and the number of registered technical talents with medium and high-grade technical titles and more than class I qualifications ranks in the forefront of the operation.
Construction professional contracting qualification: environmental protection, decoration and repair, electromechanical equipment, building curtain wall, ancient buildings, urban and road lighting, electronics and intelligence Fire protection, waterproof, anti-corrosion and thermal insulation, steel structure, formwork and scaffold, foundation, lifting equipment, ready mixed concrete, bridge, tunnel, highway pavement, highway subgrade, highway transportation, railway electrical services, railway track laying and beam erection, railway electrification, airport runway, civil aviation management, airport visual navigation aid, port and coast, channel, navigation buildings, port and navigation equipment and equipment Water traffic management, hydraulic metal structure fabrication and equipment, water conservancy and hydropower electromechanical equipment, river and lake regulation, power transmission and transformation, nuclear engineering, offshore oil and special services.
With more than 10 years of intensive cultivation, our business has covered the whole southwest region and promoted to the whole country.
At the same time, it has certain hazards: first, it occupies a large amount of land.
Due to the lack of understanding and attention to the treatment of construction waste in the past, there are many problems everywhere, such as unclear base number of construction waste, lack of special planning, lagging construction of treatment facilities, etc.
Fourth, it affects the image of the city and destroys the appearance and environment of the city Environmental sanitation.
It is the inevitable product between human sustainable development and the endless pursuit of material life and the limited engineering life and geographical resources and environmental constraints.
In 2016, several opinions of the CPC Central Committee and the State Council on Further Strengthening the management of urban planning and construction Proposal: strive to basically establish a construction waste recycling and recycling system in about five years.
As of the end of February this year, the provinces (municipalities directly under the central government) that have issued the measures for the management of construction waste nationwide There are 17 and 188 prefecture level cities, accounting for 55% and 56% of the country respectively.
In December of the same year, the general office of the State Council issued a notice《 The pilot work plan for the construction of a “waste free city” proposes to carry out the treatment of construction waste and improve the source reduction and resource utilization level.
In 2017, the amount of construction waste generated in 35 pilot cities was 1.17 billion tons, from which it can be calculated that the national amount of construction waste will be more than 3.5 billion tons.
In recent years, under the guidance of Xi Jinping’s new China’s socialist ideology, the construction waste disposal area has been seriously affected.
Construction waste is a companion produced in the process of urban construction, development and transformation.
The scale and agglomeration benefits of cities make cities the main form of human settlements, and make the scale of urban development larger and larger.
service guide construction general contracting qualification: construction, municipal administration, electric power, electromechanical equipment, highway, railway, port and waterway, water conservancy and hydropower, mining, metallurgy, chemical petroleum and communication.
Construction waste refers to the spoil, waste materials and other wastes generated by the construction unit and the construction unit in the construction, reconstruction, expansion and demolition of various buildings, structures and pipe networks, as well as residents in the process of house decoration.
Zhaocaimao enterprise processing consulting (Sichuan) Co., Ltd.
Under normal circumstances, Beijing will produce 40 million tons of construction waste every year, but with the improvement of urban quality, the production of construction waste has reached more than 100 million tons in the past two years and 192 million tons in 2018.
Second, 25% ~ 50% of dioxin discharged in the process of cement manufacturing Compared with stacking or landfill, it can reduce the emissions of 50% nitrous oxide, 30% sulfur dioxide and nitride, 28% carbon monoxide and 10% carbon dioxide.
The measures have gradually changed from transportation management to comprehensive treatment and promoting resource utilization.
these lead to the current energy consumption of construction waste disposal Serious shortage of power, low management level and low level of resource utilization caused a large number of private garbage and crowding in the construction of garbage.
However, cities still need to continue to raise awareness and comprehensively solve the problem of construction waste.
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It is classified according to national standards, including 5 kinds of engineering waste, engineering mud, engineering waste, demolition waste and decoration waste The generation of construction waste has the characteristics of phased, centralized, regional and sudden.
In the future, China’s urbanization rate will be increased by 20%, and a large amount of construction waste will also be generated.