Local two sessions: Heze City CPPCC members recommended the use of construction garbage heap mountain landscape
With the accelerating pace of urban construction, construction waste is increasing day by day, resulting in a huge amount of construction waste in urban areas. If the construction waste is improperly disposed of, it will form a source of pollution and affect the overall image of the city.
Luo Yangsheng, member of the Heze City People's Political Consultative Conference, said that it is understood that the proportion of construction waste has accounted for 30%-40% of urban waste. Only a small part of construction waste is transported to the designated disposal site. Most of the construction waste is dumped at will, or Landfills that are transported to illegal operations are disposed of in an open-air or landfill manner. Compared with more than 90% of the construction waste recycling rate in developed countries, China's construction waste recycling rate is less than 5%. At present, there is no large construction garbage dump in Shandong Province, and a large amount of construction waste is mixed into domestic garbage.
According to experts, about 5,000 tons of construction waste covers an area of ​​about 2.5 acres. Due to the lack of effective classification, construction adhesives, paints and paints in construction waste are not only difficult to degrade, but also contain harmful metal elements. Long underground will cause groundwater pollution, damage the soil structure and cause surface subsidence.
Luo Pansheng suggested that the government should take the lead in coordinating the planning and construction of functional departments, and carry out scientific and rational layout according to the actual situation of the city. From the perspective of energy conservation and environmental protection, comprehensive use of construction waste “mountain landscapingâ€. Can learn from other cities' successful cases, such as Tianjing Shanan Cuiping Park, Wenjingshan Park in Xi'an, Fujian, Zhengzhou and other places have also had successful precedents. The project can be located in the abandoned kiln factory on the south bank of Wanfu River or the lower reaches of Zhaowang River. The land is about 500 mu. The pits, kiln factories or fast fields where crops are not suitable for planting are selected to build artificial mountains and green, and the advantages of river water resources are used. Mooring, forming a wetland park with mountains and water. Taking the mountain and water bodies as the theme of the landscape, featuring plant landscaping, taking leisure tours as the main activity items, and then rationally arranging service facilities and arranging greening and guided tours.
Funds can also be introduced through investment promotion or in accordance with PPP projects. Before the “stacking of mountainsâ€, design hotels, restaurants, department stores and tunnel lights in the mountains. In the process of “stacking mountainsâ€, according to the needs of the buildings, the platform, mountain square, parking lot, winding road, pavilion and other landscapes are reserved, and a leisure, sightseeing, sightseeing, entertainment, fitness and health care are integrated. Modern tourist attractions.
Construction waste heap mountain landscaping success case
According to incomplete statistics, in 2012, Haining City approved the disposal of construction waste as much as 2.35 million cubic meters. After visiting the investigation and consulting with the experts, the CPPCC member Cao Jianchu proposed the proposal of “Recommendation on the implementation of the mountain landscaping project using construction waste†at the CPPCC in March 2013, proposing to transform the flat greening on both sides of the road into The undulating slope green landscape, which digests the construction waste and adds green landscape on both sides of the road.
The Haining CPPCC identified this proposal as the key proposal for 2013, and negotiated with the municipal government's proposal to organize the proposal, and formulated the proposal for the construction of waste management in the city. “Unified leadership, territorial ownership, overall planning, grading Management's working mechanism to achieve all-round control of construction waste “collection, transit, transportation, and consumptionâ€. Recently, the municipal government has issued the "Implementation Opinions on Further Strengthening the Construction Waste Management in the City" and the "Implementation Measures for the Management of Construction Waste in Haining City". The construction waste management system has been basically straightened out.
At present, the ecological green belt project in Baili Qiantang block and Xintang River in Haining City is using greening modeling to carry out greening renovation of the Jiatang along the line. Haining Avenue, 08 Provincial Highway and other major roads use the spoiled slopes for the excavation of the reservoir project to carry out the greening and upgrading; during the construction of the new township and township, the construction waste is used to replace part of the slag as the residential road. Basic filling, etc. In the next step, Haining City will also fully consider the use of construction waste for mountain landscaping in the planning and design of large-scale park green space in urban areas, effectively eliminating the construction waste and project unearthed in the city.
In addition to building mountains and landscapes, construction waste can also be resourced:
Recycling of construction waste, including waste wood, waste concrete concrete, waste road cement concrete, surplus concrete, waste concrete sand (slag), waste bricks, waste roofing materials, old asphalt road fabrics, recycling of construction waste powder, and construction Garbage is used as a pile foundation filler to reinforce soft soil foundation and so on.
(1) The use of waste construction concrete and waste masonry to produce coarse and fine aggregates, which can be used to produce concrete, mortar or other building materials such as blocks, wall panels and floor tiles. After adding the solidified material to the coarse and fine aggregates, it can also be used for the road pavement base.
(2) The use of waste bricks to produce aggregates can be used to produce recycled bricks, blocks, wallboards, floor tiles and other building materials.
(3) The muck can be used for road construction, pile foundation packing, foundation foundation, etc.
(4) For waste wood construction waste, the wood that has not been obviously damaged can be directly reused for reconstruction. The damaged wooden components can be used as raw materials for wood-recycled boards or papermaking.
(5) Abandoned asphalt mixture can be directly used for reclaiming asphalt concrete in an appropriate proportion.
(6) Abandoned road concrete can be processed into recycled aggregate for the preparation of recycled concrete.
(7) Scrap steel, scrap steel and other scrap metal materials can be directly reused or recycled.
(8) Construction waste such as waste glass, waste plastics, and waste ceramics shall be used separately depending on the situation.
Successful case of construction waste resource utilization
Hunan Jiangong and Shenzhen Warwick
Project address: Changsha, Hunan
Raw materials: construction waste
Equipment: crawler type mobile crushing station + crawler type mobile screening station + crawler type light material separation equipment + crawler type environmental dust suppression vehicle
Production: 250t/h
Feed particle size: <750mm
Finished product size: 0-10mm, 10-20mm, 20-60mm
Recycled products: green bricks, recycled aggregates
Crawler-type complete construction waste treatment equipment in Hunan site
With an annual turnover of more than 120 billion yuan, Hunan Construction Engineering Group is the largest state-owned enterprise in Hunan Province. At the beginning of 2016, Hunan Construction Engineering Group Environmental Protection Company introduced a complete set of construction waste treatment from Zhengzhou Dingsheng Company, such as non-dusting oil and electric crawler type mobile crushing station, crawler type mobile screening station, tire type light substance separator and environmental dust suppression vehicle. The equipment is applied in the comprehensive transformation of solid waste treatment project in the shanty town of Changsha City to realize the resource utilization of construction waste. It is highly evaluated and valued by the governments of Hunan and the municipal governments, and is used as a demonstration project for the construction waste resource utilization. The province 14 cities promoted.
Due to advanced equipment performance and significant economic benefits, the company purchased four sets of construction waste treatment equipment of the same type from Zhengzhou Dingsheng Company in June 2016.
Shenzhen Huawei Environmental Protection Building Material Co., Ltd.
Project address: Shenzhen
Raw materials: construction waste
Equipment: tire type mobile crushing station + tire type mobile screening station
Production: 250t/h
Feed particle size: <750mm
Finished product size: 0-10mm, 10-20mm, 20-30mm
Recycled products: green bricks, recycled aggregates
Tire-type mobile crushing station in Shenzhen site
Shenzhen Huawei Environmental Protection Building Materials Co., Ltd. is a high-tech environmental protection enterprise specializing in the recycling of construction waste. It is a high-tech environmental protection enterprise integrating R&D, production, sales and science and education. At the beginning of December 2016, the company purchased a set of 200 tons from Zhengzhou Dingsheng. The tire-type mobile crushing station and screening station are used for resource utilization of construction waste in Nanshan District, Shenzhen. At present, the equipment has been put into production, and the customer reports that the equipment is running smoothly, the output is up to standard, and the supporting board hammer has a long service life. The construction waste resource utilization plan 24 hours service consultation telephone or 15237121251.
Learn more about the use of construction waste resources to view:
Recycling of construction waste http://
Construction waste crusher offer http://
Construction waste mobile crushing station http://
Editor in charge: Gao Yuexia
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