precast-tech

Modern concrete is a multi aggregate composed of cement, mineral admixtures, sand, stone, air, water, and additives, and can meet the basic requirements of “high workability, high early strength enhancement, and high durability”.

Modern concrete should include high-performance concrete, high-strength concrete, fluid concrete, pumped concrete, self leveling and self compacting concrete, anti-seepage and crack resistant concrete, underwater pouring concrete, and commercial concrete.

The traditional concrete mix design method based on strength cannot meet the requirements of modern concrete mix design.

Precast Lifting Clutch

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The hydration reaction of concrete is the fastest in the early stages and requires temperature and humidity to proceed normally.

Halfen Channel

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With the development of the construction industry, commercial concrete is widely used in construction projects.

The quality of concrete construction is directly related to the safety and durability of building structures.

Crown Foot Anchor

As the basic component of concrete, the quality of raw materials has a significant impact on the performance of concrete.

And raw material testing data can accurately reflect the quality status of raw materials.

However, the current emphasis and application of raw material testing data in some projects are insufficient.

In depth research on the relationship between raw material testing data and concrete construction quality, and the rational use of testing data to guide construction, has important practical significance for improving the quality of construction projects and promoting industry progress.

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Admixtures, also known as concrete admixtures, are chemical reagents added during the production of concrete to improve its performance.

The quantity of admixtures generally does not exceed 5% of the cement mass.

Although the quantity is very small, the use effect is very significant and can adapt to the needs and characteristics of various projects.

Magnetic Thread Disc

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The core function of aluminum powder in autoclaved aerated concrete is to act as an air entraining agent, which reacts chemically with alkaline substances such as calcium hydroxide in the slurry to produce hydrogen gas, forming a large number of small and uniform pores, enabling the concrete to achieve the core characteristics of lightweight and thermal insulation.

At the same time, by controlling the air entraining speed and volume, the dimensional stability of the body expansion molding is guaranteed.

Concrete Plate Anchors

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In the field of construction engineering, lightweight concrete is widely used in high-rise buildings, bridge decks, protective barriers and other scenarios due to its lightweight advantages.

As a typical representative, how to improve the impact toughness of lightweight expansive clay aggregate (LECA) concrete while maintaining its lightweight characteristics has always been a core pain point in industry research.

Spread Anchor

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According to the Notice on Issuing the Plan for Formulating and Revising Engineering Construction Standards and Specifications in 2006 (First Batch) issued by the former Ministry of Construction (Jian Biao [2006] No.

77), this specification was revised by the China Academy of Building Research in conjunction with relevant units through investigation and research, careful summary of practical experience, reference to relevant international standards and advanced foreign standards, and extensive solicitation of opinions.

Dog Bone Anchor

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To ensure the safety and reliability of the main structure and the smooth pumping and pouring of ready mixed concrete, users are requested to carefully read this notice and provide close cooperation.

The engineering supervisor shall supervise the implementation and complete the concrete pouring task with quality and quantity guaranteed.

Concrete Plate Anchors

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The methods for reducing concrete shrinkage mainly include shrinkage reducing agent method, expansion agent method, and internal curing method, each of which has its own advantages and disadvantages.

Magnetic Thread Disc

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Concrete is an artificial stone material with certain strength, which is made by mixing and blending cementitious materials, water, coarse aggregates, fine aggregates, and additives with specific properties in appropriate proportions, and then hardening for a certain period of time.

Pfeifer VS Box

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