by When the word “precast ultra-low energy consumption building” comes out, everyone may be confused, “ah? What is precast? What is ultra-low energy consumption building? Do we need to dust it with this technology?” Don’t worry first.
Keep these questions and follow Xiaobian down! What is a precast building? What are its characteristics?? Precast building refers to the building assembled by components and parts in a reliable connection on the construction site.
It has the characteristics of design standardization, production industrialization, construction assembly, decoration integration and management informatization.
It is a major change in the construction mode of buildings.
According to follow-up investigation and statistical analysis, compared with cast-in-situ buildings, precast buildings can greatly reduce the consumption of wood formwork, thermal insulation materials, plastering cement mortar, construction water and electricity, reduce more than 80% of construction waste emission, reduce carbon emission and dust and noise pollution to the environment, which is conducive to promoting the construction of ecological civilization.
What is ultra low energy consumption building? What are its characteristics?? Ultra low energy consumption buildings are buildings that greatly reduce the heating and cooling demand of buildings, improve the efficiency of energy equipment and systems, and provide a comfortable indoor environment with less energy consumption through passive technical means.
They have non transparent envelope with higher thermal insulation performance, external windows with higher thermal insulation performance and air tightness, and design and construction of non thermal bridges The whole building has six technical features: high air tightness, efficient fresh air heat recovery system and full utilization of renewable energy.
Combination of new technology and excellent materials! Precast ultra-low energy consumption building!! On the basis of the original concept of “ultra-low energy consumption building”, the precast ultra-low energy consumption building is built in the way of precast building.
Based on the characteristics of ultra-low energy consumption buildings, it also has the advantages of light weight, high strength, fast construction, convenient pipeline layout and less construction environmental pollution.
In the construction process, through the technical coupling and integration of cast main structure system, envelope system, interior decoration system, electromechanical system and ultra-low energy consumption building standards, the high-quality goal of the whole process of the building is realized.
The advantages of ultra-low energy consumption buildings are mainly reflected in (1) more energy saving.
The annual demand for heating and cooling of buildings has been significantly reduced, and the building energy saving rate in severe cold and cold areas has reached more than 90%.
Compared with the current national energy-saving design standards, the heating energy consumption is reduced by more than 85%.
(2) More comfortable.
The indoor temperature and humidity of the building are appropriate; The surface temperature of the inner wall of the building is stable and uniform, with small temperature difference with the indoor, making the body feel more comfortable; It has good air tightness and sound insulation effect, and the indoor environment is quieter.
(3) Better air quality.
Organized fresh air system design can provide enough fresh air in the room and improve indoor air quality through air purification technology.
(4) Higher quality assurance.
No heat bridge, high air tightness design, high-quality material parts, fine construction and building decoration integration, so that the building quality is higher and the service life is longer.
Significance of developing ultra-low energy consumption buildings 1) social benefits – improve the overall image of buildings and public recognition.
The implementation of ultra-low energy consumption green building route will establish a modern corporate image of paying attention to the earth’s resources, protecting the environment and returning to the society.
Through the implementation of ultra-low energy consumption buildings, the improvement of building quality, efficiency, comfort and people-oriented, the building brand will be more easily recognized by the public and establish an excellent brand image, which is conducive to the long-term development of the construction enterprise.
2.
Environmental benefits – reduce resource consumption and environmental pollution, and live in harmony with the environment.
The wide application of renewable energy can effectively reduce the consumption of non renewable resources such as coal, natural gas, electricity and water, the pressure of energy shortage, reduce the emission of pollutants such as CO2, and realize the friendly symbiosis between people, buildings and the environment.
3.
Economic benefits – improve building comfort, improve project quality, greatly reduce maintenance and operation costs, and achieve significant long-term economic benefits.
The implementation of ultra-low energy consumption building will greatly improve the quality of outdoor and indoor environment, improve the comfort of the building and promote the quality of the project.
After listening to the above introduction, I believe you have a certain understanding of the two technical materials of “precast and ultra-low energy consumption buildings”.
At present, the policy strongly supports this technology and process, which will gradually replace the traditional buildings as the mainstream in the future.
Goodbye, the grey man!..
