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What should be paid attention to during winter concrete construction? How to use antifreeze?
According to Chapter 7 of the national standard “Code for Construction and Acceptance of Concrete Structures” (GB50204), based on local temperature data for many years, when the daily average outdoor temperature remains below 5 ℃ for 5 consecutive days, concrete construction should enter the winter season.
At this point, the first day when the temperature remains stable below 5 ℃ for 5 consecutive days is considered the initial day for winter construction.
Similarly, when the temperature rises, the end of winter construction is the day when the temperature remains stable above 5 ℃ for 5 consecutive days.
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Winter concrete construction methods and technical measures
According to JGJ/T104-2011 “Winter Construction Regulations for Building Engineering”, winter construction begins when the daily average outdoor temperature remains below 5 ℃ for five consecutive days.
Concrete structure engineering should adopt winter construction measures and take anti freezing measures for sudden temperature drops.
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Concrete buildings that conform to the will of nature – MS Residence/Studio Saransh
The exterior of the residence continues the strong characteristics of brutalism, with the geometric shape of the concrete facade quietly disappearing in the shade.
The square holes and deep slanted window sills on the facade not only enhance the changes in light and shadow, but also soften the visual impression of the building.
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Income and profit have both declined! The latest data on the concrete industry is out! The decline is still widening
The concrete industry in 2025 is undergoing a deep adjustment from scale expansion to quality survival.
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Shocked concrete: expected global market size to increase to $15.36 billion by 2029
In 2024, the global shotcrete market size is expected to reach $10.
46 billion, and it is projected to increase to $15.
36 billion by 2029.
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The closed commodity concrete industry of Hainan Free Trade Port welcomes new opportunities
On December 22nd, Hainan Ruize (002596) hit the limit up, with a limit up price of 5.
89 yuan, an increase of 10.
09%.
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Explanation and treatment methods for cracks and diseases in bridge and tunnel concrete
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Vertical cracks appear in the middle of the beam span, penetrating along both sides of the beam.
The reason is that when the concrete is subjected to a load, the steel bars in the lower tensile zone are jointly stressed with the concrete.
When the fiber strain at the edge of the tensile zone is greater than the ultimate tensile strain of the concrete under bending, concrete cracking occurs in the tensile zone.
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Numerical simulation of three-point bending of concrete with precast cracks based on XFEM (2D)
This article is based on the extended finite element method (XFEM) for numerical simulation of three-point bending of concrete with precast cracks.
The model dimensions and parameters are shown in Figure 1.
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Is it good to pour concrete in cold winter weather? In depth analysis of the challenges and professional solutions of winter concrete
With the promotion of year-round operations in the construction industry, winter construction has become increasingly common.
However, whenever the temperature drops sharply, the core challenge faced by construction is whether pouring concrete in cold winter weather is feasible?.