How many concrete workers will switch careers this year

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By 2025, it is expected that 6.

25 million to 9.

5 million people in the national construction industry will switch careers.

Considering that the concrete industry accounts for about 15% to 20% of the construction industry chain, it is speculated that the number of people who switch careers in the concrete industry in 2025 may be between 900000 to 2 million.

In 2026, the market will still be difficult, with many projects decreasing and some mixing plant owners selling their mixing plants or switching careers to other industries.

It is estimated that about 300000 to 500000 concrete workers will switch careers this year.

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Discussion on measures to control cement concrete pavement diseases during construction

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Cement concrete pavement is a type of pavement structure with high stiffness, strong diffusion ability, and good stability.

With the increase of construction mileage, the accumulation of practical experience, and the deepening of scientific research, the construction technology of cement concrete roads has gradually improved, and the quality continues to improve.

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In addition, the adaptability and disaster resistance of cement concrete pavement are strong, which can better meet the requirements of modern transportation;.

How can concrete not ignite?

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With the rapid development of society, people’s awareness of their own safety issues continues to increase.

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In the design, construction, decoration, and maintenance of buildings, safety and reliability are increasingly valued, especially fire safety.

Therefore, researching and developing new technologies for non combustible concrete is of great significance for building safety.

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A market worth billions to trillions of dollars! The application of self-healing concrete will usher in the era of “assetization” of

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With the global infrastructure entering the era of long-term maintenance, the current situation of traditional concrete “working with defects” is ushering in a technological turning point.

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The latest data shows that the global self healing concrete market is expected to reach a scale of billions to trillions of dollars by 2035.

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Current hot topics in precast assembled concrete bridges

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As a requirement for structural performance, normal usability and durability are also important.

Relatively speaking, the research on the normal performance and durability of precast concrete bridges is still somewhat insufficient, which may limit the application scope of precast concrete bridges.

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Taking railway bridges as an example, due to the needs of train safety and passenger comfort, both conventional and high-speed railways have high requirements for the deformation and stiffness of bridge beams and piers.

Conducting research on the normal performance of precast concrete bridges for railway construction is an inevitable requirement for promoting the application of precast assembly technology in railway bridges.

As a critical infrastructure, the performance degradation mechanism and characteristics of precast assembly nodes, non-destructive testing methods, and corresponding reinforcement technologies are important issues that need to be addressed to ensure the durability of precast assembly concrete bridges in complex environments after a long service life.

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Analysis of factors affecting the flexural strength of cement concrete pavement

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As the main cementitious material of concrete, the quality of cement largely determines the quality of concrete, especially in pavement concrete, which not only requires compressive and flexural strength that meets the specifications, but also has relatively high requirements for fatigue resistance, impact resistance, and abrasion resistance after cement hardening.

In cement clinker, it is beneficial to increase the C4AF and C2S content appropriately to improve the fatigue resistance, impact resistance, and wear resistance of concrete while ensuring sufficient C3S content to meet strength requirements and a flux mineral content of 19% to 20%.

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