Month: January 2026

Core tip: The early shrinkage and drying shrinkage of concrete gradually decrease with the increase of fly ash content, and the inhibitory effect of fly ash on early shrinkage is better than that of drying shrinkage; With the increase of mineral powder content, the early shrinkage of concrete increases while the drying shrinkage decreases; The addition of silica fume increases the early shrinkage and drying shrinkage of concrete, and this effect becomes more pronounced with the increase of silica fume content.

Double Ended Ferrule

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The setting time is divided into initial setting time and final setting time.

The initial setting time is the time required from the mixing of cement and water until the cement slurry begins to lose its plasticity.

The final setting time is the time required from the mixing of cement and water until the cement slurry completely loses its plasticity and begins to develop strength.

The setting time of cement is of great significance in construction.

The initial setting time should not be too short, and the final setting time should not be too long.

Crown Foot Anchor

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With the development of society, high-strength and large volume concrete is widely used in the foundation slabs and bridge structures of super high-rise buildings.

High strength and large volume concrete not only needs to meet strength standards, but also needs to consider controlling the temperature difference between the inside and outside of the concrete, reducing hydration heat, and preventing concrete cracking caused by excessive temperature differences.

Magnetic Thread Disc

High strength and large volume concrete, especially concrete with a strength exceeding C50, has a high frequency of cracking problems.

Therefore, solving the problem of concrete cracking is currently the focus of crack resistance research.

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With the development of urban construction, commercial concrete has gradually replaced on-site self mixed concrete in construction projects.

The application of commercial concrete in engineering greatly improves the quality assurance rate of engineering entities, but at the same time, it also gives rise to some problems.

Due to the requirements of urban planning and the limitations of raw material transportation conditions, concrete mixing plants are basically distributed in suburban areas far away from urban areas.

Commercial concrete is transported from the mixing plant to the construction site, and the transportation distance is generally long.

In addition, some accidental factors such as urban traffic conditions, concrete site waiting, and mechanical failures often require several hours for concrete to be mixed with water and poured.

Metal Rebar Caps

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In addition to the specific provisions of the regulations, the winter construction period is divided into three stages to facilitate the management of concrete engineering construction from November 15th to March 15th each year.

Dog Bone Anchor

Different technical adjustment plans are formulated according to different temperatures.

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