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The problem of floor cracks in large concrete buildings has always been a common challenge in construction.

The reason why most concrete large-scale buildings have the above-mentioned cracks on their floors may be because during the construction and pouring of concrete, the construction was not completed according to the corresponding standards or the concrete materials used did not meet the relevant requirements in terms of strength, tensile strength, flatness, etc.

Rebar Saddles

In response to this issue, this article takes the No.

1 factory building of Weichai Fudi Battery Phase I Construction Project as the research object, and focuses on analyzing the key technologies for controlling cracks in super large floor concrete.

By optimizing design and materials, standardizing construction processes, and implementing refined maintenance measures, the aim is to solve crack problems, improve engineering quality, and provide technical references for similar projects.

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With the development of modern construction technology and the continuous expansion of engineering scale, the engineering field has put forward higher requirements for the performance of concrete.

Rebar Wheel Spacers

As an important component of concrete, the physical properties, chemical composition, and harmful substance content of sand and gravel aggregates will have a significant impact on the strength, workability, durability, and other aspects of concrete.

Therefore, in the field of engineering construction, it is not only necessary to have a deep understanding of the impact mechanism of sand and gravel aggregates on concrete performance, but also to find scientific and rigorous quality control measures to ensure that the quality of sand and gravel aggregates meets engineering requirements.

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Plastic shrinkage often occurs in the semi fluid or plastic stage of concrete, which is caused by various factors such as settlement motion, capillary tension, early chemical shrinkage, and self shrinkage, resulting in changes in concrete volume.

Shuttering Magnet

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In 2025, China’s concrete industry is undergoing an unprecedented “survival test”.

According to industry trends and feedback from multiple markets, nearly 7000 concrete companies will exit the market throughout the year, which is equivalent to about 30% of the total number of registered companies in China by the end of September 2024.

Pfeifer VS Box

Since 2025, the claim that “7000 concrete companies will go bankrupt this year” has continued to ferment in the industry, causing widespread anxiety among practitioners.

This prediction is not groundless, but stems from the reality of intensive bankruptcies in the industry.

At present, many mixing plants have been shut down and bankrupted in batches, and the price war and funding war among small and medium-sized enterprises have caused a collective break in the funding chain.

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The detection of the nominal diameter of steel bars can be carried out by direct method or sampling and weighing method.

Steel Chamfer

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As we enter the third decade of the 21st century, the energy landscape is undergoing a profound transformation.

Faced with the imminent energy crisis, renewable energy is increasingly seen as humanity’s “Noah’s Ark”.

And the intermittency of these energy sources has led to a significant amount of energy waste.

For example, in China alone, up to 50 billion kilowatt hours of electricity are cut each year, equivalent to half of the annual power generation of the Three Gorges Dam.

Ferrule Loop Insert

The demand for scalable and reliable energy storage technologies has never been more urgent than now.

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Concrete, as one of the most widely used materials in construction engineering, its durability directly determines the service life and safety performance of buildings.

Precast Lifting Clutch

Among the many factors that affect the durability of concrete, Alkali Aggregate Reaction (AAR) is a highly concealed and harmful internal destructive effect, known as the “cancer” of concrete in the industry.

A deep understanding of its reaction principle and its impact on durability is the key to preventing and controlling such diseases.

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As a hydraulic construction technician, do you also feel a headache about controlling the concrete protective layer? If the protective layer is left too large, it may cause the concrete to have no reinforcement and be prone to cracks.

Magnetic Thread Disc

If the protective layer is too small, it may cause the steel bars to develop and even expose, seriously affecting the appearance quality of the concrete.

In severe cases, it may even need to be dismantled and rebuilt, resulting in heavy losses.

The author summarizes some control measures for tunnel lining protection layer for your reference.

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SR-3 pre mixed concrete segregation regulator is an upgraded product of pre mixed concrete segregation regulator and concrete anti segregation agent.

Halfen Channel

Compared with the previous generation product, it has the following characteristics:.