Our country’s economy is now in a period of tackling the challenges of transforming the development model, optimizing the economic structure, and transforming the growth momentum. It faces new opportunities and challenges.
In the new era, how will China's building materials industry achieve high quality development? How to change the development mode and optimize the structure?
On the morning of March 14th, before the Taiwan delegation’s plenary session, Zhang Xiong, the deputy of the National People's Congress and the chief of the national “Thirteenth Five-Year Plan” major R&D project and professor of Tongji University, received an exclusive interview with a reporter from China National Building Material. While analyzing the industry issues, he also proposed suggestions for the transformation and upgrading of the building materials industry.
When he first met Zhang Xiong, he happily elaborated on his suggestions for attending the conference this year. This year, Zhang Xiong brings together three suggestions closely related to the building materials industry. They are "Recommendations for Promoting the Healthy Development of the Institutional Sand Eco-Environmental Protection Industry," "Proposals to Improve Standards for Permeable Products in the "Sponge City," and "Establishment of a Green Building Material Evaluation System." 》
Improve the system of sand industry standards
Issue related preferential policies
Zhang Xiong told reporters that at present, our country is in the stage of rapid development of urbanization. The scale of construction projects based on concrete structures is increasing day by day. Sand aggregate is the most used material in the composition of concrete. With the increasing development of basic construction, the natural sand resources in many regions of our country have already been exhausted. Many regions have forbidden the exploitation of natural sand for the purpose of ecological and environmental protection. The application of mechanism sand can protect the environment, save costs and achieve sustainable development. It is imperative to replace natural sand.
At the same time, Zhang Xiong told reporters: “At present, there are still some problems in the production and application of machine-made sand, including the lack of suitable production standards and quality standards, the quality of machined sands, and the lack of technical guidance and policies for the use of solid waste in the manufacture of machine-made sand. Support etc."
To this end, Zhang Xiong suggested that the industrial authorities should take the lead to formulate guidance on the transformation of the machine-sanding industry and upgrading of technology. Planning mechanism Sand industry layout, promotion of sand production and application technology, collaboration with building industrialization industry and mine ecological restoration industry, promote the healthy development of the sand ecological environmental protection industry.
He suggested that the industrial administration department should take the lead, together with the standard management and downstream application departments, to perfect the sandstone industry standard system. Further improve the relevant standards and specifications for products, testing, equipment, environmental protection, safety, and use of the machine-made sand industry.
At the same time, he also proposed the introduction of preferential policies for the production of solid waste resources, such as production sand taxation, and support for the use of construction waste and tailings manufacturing mechanisms for the sand industry. At the same time, efforts should be made to strengthen the management of the mine's ecological environment so that the mechanism sand industry will be incorporated into the mine ecosystem restoration industrial chain system.
Improve "Sponge City"
Permeable product quality and standards
In view of the current construction of the sponge city that is currently in full swing throughout the country, Zhang Xiong said that the pervious material on the road surface is an important part of the construction of the “sponge city”. However, these pervious materials currently have problems.
First of all, the quality of the sponge city project is uneven, some of the nominal “pervious bricks” are merely water-absorbing on the surface, and they are no different from ordinary road bricks; in addition, large-sized pore structures are visible on the surface of a large number of permeable bricks, resulting in a large amount of dirt and dust. The debris quickly fills in the pores, and the permeable bricks lose their permeability.
Secondly, the technical standards for the products lag behind, resulting in the inability of the pervious brick to match the actual application at the current stage. For example, as a functional product, pervious bricks do not have a clear definition of the long-term permeability of the pervious function, resulting in the short-term failure and frequent rework of pervious pavements.
Therefore, Zhang Xiong suggested that: 1. Spongy city construction is an important project that will benefit both the country and the people. Sponge urban engineering penetration and long-term performance and durability should be listed as important assessment items for sponge city project quality. Second, timely amendments to permeable materials product standards, the long-term durability of water penetration into product technical indicators.
Establish a "standard + assessment" system for green building materials
In the beautiful Chinese dream, it is necessary to promote the urbanization of ecological civilization. Green buildings are the precursors of ecological civilization, and green building materials are the basis for the development of green buildings.
Zhang Xiong said that green building products must follow: quality, safety, functionality and environmental impact throughout the life cycle. However, the current market for green building materials is not standardized. For example, so-called green building materials such as “green” and “environmental protection” often advertised by manufacturers often have only certain aspects of green building materials. Unscrupulous manufacturers are falsely propagandizing green building materials, misleading consumers and damaging the health of the people. These problems are largely due to the fact that China has not yet established a green building certification system and system. This is inconsistent with the increasing consumption of green building materials by the people.
Therefore, the beautiful Chinese dream must be based on the development of green building materials. To guide the upgrading of building materials industry products and energy-saving emission reduction to green development, we need to establish a green building materials evaluation system.
Therefore, Zhang Xiong suggested that: First, establish and improve green building materials standards and evaluation system to guide the restructuring of building materials industry to the direction of green building materials; Second, establish green building products, "green" logo system, regulate the development of green building materials market, protect consumers Equity and health.
Standards promote innovation and development, and standards lead the times.
Looking at Zhang Xiong's three suggestions, all start with the standard. In response, he also stated that at present, some irregularities in the process of standard setting in all walks of life in China have caused some problems such as significant defects, low standards, and contradictory standards. This issue requires social assistance. All walks of life and high-level attention, as long as the standard is in place, the industry can develop in an orderly manner.
In addition, Zhang Xiong also hopes that the development of the industrialization of architecture can lead to continuous attention from all walks of life and industries. Prefabricated buildings are an important form of building industrialization. They are prefabricated and completed at the factory in some or all of the components of the house, then transported to the construction site, and the components are assembled by means of a reliable connection to complete the construction of the house.
Zhang Xiong said: “The development of building industrialization puts forward new requirements for the building materials industry. In the future, the form of selling individual building materials will shrink, and concrete, wall materials, doors and windows, insulation materials, and decorative materials will not be directly supplied to the building. Instead of the construction site, they join the construction industrialization industry, and they assemble the building structural parts and components from the assembly building component parts factory and supply it to the construction site. This will become a new industry form and force the industry to produce coalition and group production.”
Taking the concrete industry as an example, Zhang Xiong made a prediction that within 3 years, the ready-mixed concrete industry will definitely shrink. He told reporters that taking Shanghai as an example, the “Three-Year Action Plan for Environmental Protection and Construction in Shanghai from 2018 to 2020” requires the promotion of the promotion of assembly-type construction. The newly-constructed buildings that meet the conditions in the city should adopt prefabricated buildings in principle. All green building standards are implemented, in which large public buildings and government office buildings are constructed in accordance with the standards of two-star or higher green building, and new public buildings in low-carbon development practice areas and key function areas are constructed in accordance with the standards of two-star or more green buildings. The proportion is not less than 70%.
Zhang Xiong told reporters that when the “blueprint” becomes a reality, the ready-mixed concrete industry will inevitably shrink. Moreover, from the perspective of urban environmental protection, the industrialization of construction will shift the on-site operations to manageable workshops, reducing pollution to the atmosphere and so on. For the contribution to urban environmental protection. The industrialization of buildings is the trend of the times. Therefore, the building materials industry, including the ready-mixed concrete industry, must seize the time and seize the opportunity to transform and upgrade.
(China Building Materials News)
