precast-tech

precast technology developments

Concrete is always constructed in this way, and whenever there is a problem, it’s the laboratory’s fault?

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Whether the strength of concrete occurs and develops regularly, whether surface defects of concrete can be controlled, and whether the durability of concrete can meet the service life are closely related to the construction technology, construction details, and curing of concrete on the construction site.

As for habitual habits, when quality problems arise, they are often pushed to the concrete mixing plant.

Double Ended Ferrule

According to the following construction method, can we blame the laboratory for poor concrete control?.

What should be paid attention to during winter concrete construction? How to use antifreeze?

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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.

Steel Chamfer

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Winter concrete construction methods and technical measures

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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.

Magnetic Thread Disc

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Concrete buildings that conform to the will of nature – MS Residence/Studio Saransh

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The exterior of the residence continues the strong characteristics of brutalism, with the geometric shape of the concrete facade quietly disappearing in the shade.

PVC Chamfer

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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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.

Precast Round Ferrule

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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