Developing precast green buildings is the most suitable construction method for the concept of carbon neutrality
as raw materials or cement mixtures.
Therefore, if the construction industry wants to achieve the dual-carbon goal, it needs to make efforts from all sides.
Your appeal is the direction of our research and development and service.
Vigorously developing green building green building is not only a form of building, but also a direction.
Therefore, reducing the carbon emissions of the building materials industry and increasing the proportion of green building materials in the construction industry play an important role in achieving the double-carbon goal of the entire construction industry.
Policy and market “double wheel drive” The policy support of national and local governments is an important condition for the construction industry to achieve the double carbon goal.
Achieving the dual-carbon goal involves work in various fields.
The whole construction process covers from the production of building materials to the construction of buildings, and then to the operation after completion.
In the process of achieving the dual-carbon goal, the role of the construction industry is crucial.
Relevant laws, regulations and policies should be formulated in a timely manner to promote the promotion and application of energy saving and carbon reduction technologies in the construction industry from the aspects of fiscal and tax support, price policy, energy saving and carbon reduction standards, energy saving and low carbon labeling, etc.
Increasing the proportion of green building materials in the building materials industry is the basis for supporting China’s urban construction and provides important support for improving living conditions, improving the ecological environment and developing circular economy.
Industry experts pointed out that the total number of buildings in China has continued to grow.
If properly utilized, the annual power generation can reach 2.95 trillion kilowatt-hours, accounting for 23% of the total power in China in the future.
Using green building materials and promoting the establishment of low-carbon, environmentally friendly, energy-saving and efficient green construction can truly realize the transformation of the building materials industry to a low-carbon industry.
However, at present, the building materials industry is still in the state of high energy consumption and high carbon emissions.
Among them, the construction industry is the key field of reducing carbon emissions, and will play a pivotal role in the process of achieving the double-carbon goal.
Strengthen the application of renewable energy and develop the application of renewable energy based on photovoltaic application, that is, make full use of the roof space of urban and rural buildings and other external surfaces that can accept solar radiation to install photovoltaic cells, in order to solve the problems of large-scale development of photovoltaic time and space resources.
The data shows that the existing building area in China is more than 66 billion square meters, and because of the low quality standards and untimely maintenance in the construction period, more than 60% of the buildings are not energy-saving buildings.
The development of precast green buildings of steel structure and wood structure is the most suitable construction method for the concept of carbon neutrality, in line with the national concept of green development and sustainable development, and is more conducive to reducing carbon emissions in the construction industry and helping to achieve the goal of double carbon.
Therefore, the promotion of renewable new energy systems with rooftop photovoltaic as the core in the vast rural areas can greatly help achieve the goal of carbon peak and carbon neutrality.
As a major carbon emitter, the low-carbon transformation of the construction industry has become the consensus of all sectors of society.
The data shows that the total carbon emissions from the whole construction process in China is about 5 billion tons, accounting for 50.6% of the national carbon emissions.
At the same time, green building materials are also the material basis of green buildings.
(The author’s unit is the Housing and Urban-Rural Development Bureau of Yiyang County, Luoyang City, Henan Province) At the end of the full text, welcome to call and exchange questions about green building.
Accelerate the certification and application promotion of green building materials products, and strengthen the research and development and application of new cementitious materials, low-carbon concrete, wood and bamboo building materials and other low-carbon building materials products.
We should make good use of the invisible hand of the market, carry out the identification business of building energy conservation technology by market-oriented means, promote the building energy conservation and environmental protection industry fund, and promote the new technology of building energy conservation and carbon reduction from a market-driven perspective by means of investment and financing of building energy conservation technology.
With the topic of carbon peak and carbon neutrality becoming the focus and focus of social attention, implementing the dual-carbon goal and achieving high-quality development have become a “must answer” for high-quality development of the construction industry.
Compared with new buildings, promoting green low-carbon transformation of existing buildings has greater potential for carbon emission reduction.
It can be said that the stock buildings are the main reason for the large carbon emissions in the construction operation stage, and it can be inferred from this that the green transformation of existing buildings is the key measure to achieve carbon neutrality in the construction industry as a whole.
According to industry experts, according to preliminary estimates, the building roof area in rural areas of China is 27.3 billion square meters at present.
At present, there are 16 billion square meters of newly built buildings with low energy efficiency each year, so it is urgent to reduce building energy consumption and carbon emissions, and vigorously develop green buildings including ultra-low energy consumption buildings, near-zero energy consumption buildings and precast buildings.
Building materials enterprises should be encouraged to use fly ash, industrial waste slag, tailings slag, etc.
The “Fourteenth Five-Year Plan for Building Energy Efficiency and Green Building Development” issued by the Ministry of Housing and Urban-Rural Development also put forward the development goal, that is, by 2025, the construction of ultra-low energy consumption and near-zero energy consumption buildings will be more than 50 million square meters, and precast buildings will account for 30% of the new urban buildings in that year.
It is believed that with the concerted efforts of all parties and the “resonance of the same frequency”, the construction industry will be able to reverse the development mode of “massive construction, massive consumption and massive emissions”, and achieve the double-carbon target task according to the time node.
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In terms of urban construction, it is estimated that the exploitable capacity of PV on the roof of urban buildings in China is 830 million kWh, and the annual power generation can reach 1.23 trillion kWh, which can meet 30% – 40% of the power consumption of urban buildings.
With the help of the “east wind” of the renovation of old residential areas and urban renewal, the transformation of China’s current large-scale existing buildings into low-carbon or zero-carbon buildings will play a positive role in effectively controlling the carbon emissions of buildings in the long term.
Promote energy-saving technology and equipment, carry out the construction of energy management system, and achieve energy conservation and efficiency.
The “Fourteenth Five-Year Plan” for Building Energy Efficiency and Green Building Development also puts forward the goal of completing more than 350 million square meters of energy-saving renovation area of existing buildings by 2025.
According to the statistics of China Building Energy Conservation Association, the proportion of carbon emissions in the above three stages is 28%, 1.0% and 21.6% respectively.