Winter construction reminder for concrete construction units

In the spirit of being responsible for engineering quality, our company has put forward higher requirements for concrete production in this stage and developed a comprehensive winter construction technology plan: during the winter concrete construction process, our company uses antifreeze and water reducing agents, reduces water cement ratio and other methods to prepare concrete, and increases efforts in raw materials, production process, quality control and other processes to ensure that the quality risks of concrete production, transportation, pouring and other links are minimized.

While our company takes technical measures for winter construction of concrete, the pouring, curing, and maintenance of concrete will also have a direct impact on the quality of concrete structures.

In order to prevent quality accidents to the greatest extent possible, the relevant matters are introduced below in order to achieve good results and help you create excellent projects.

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Discuss the impact of concrete raw materials on compressive strength

Mineral admixtures have become an indispensable component of concrete, and their use has shifted from simply pursuing economic benefits to a technical means of improving concrete performance.

Edge Lift Anchor

The physical “filling effect” and chemical “volcanic ash effect” of mineral admixtures, especially the secondary hydration, cause changes in the microstructure of concrete, improve the compactness of concrete, and promote the improvement of later strength.

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Building materials | New materials named by the Ministry of Housing and Urban Rural Development are rewriting the rules of building lifespan

On October 11th, during the “High Quality Completion of the 14th Five Year Plan” series of press conferences organized by the State Council Information Office, the Ministry of Housing and Urban Rural Development introduced the application of new materials, and a concrete that can “cure diseases” on its own unexpectedly became the focus – “self-healing concrete” was explicitly mentioned as a model for improving building performance.

Swift Lift Foot Anchor

This kind of material that sounds like “black technology” is no longer a laboratory concept, but is quietly changing the buildings around us.

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Reading Notes: “Visible and Invisible Cracks in Concrete” – Components of Concrete

The author of this book, Burrows, has been engaged in concrete durability research at the United States Bureau of Reclamation (USBR) since 1946.

He conducted 53 years of observation, testing, and research on 104 concrete experimental panels at Qingshan Dam in Colorado.

Rebar Wheel Spacers

Based on extensive practice, he put forward many unique viewpoints, opinions, measures, and suggestions to improve concrete durability, which have important inspirations for the quality control and technological development of modern concrete engineering.

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What is the most suitable slump of concrete

There is no fixed “most suitable” standard for concrete slump, and its value needs to be determined comprehensively based on specific engineering requirements, construction conditions, concrete types, and transportation methods.

The core principle is to ensure the strength and durability of concrete after hardening while meeting construction and workability requirements.

Precast Lifting Clutch

The following provides specific explanations from two aspects: key influencing factors and common reference ranges:.

High ductility concrete: seismic black technology that teaches architecture to bend over

Have you ever seen a concrete building collapse with a loud bang during an earthquake? Traditional concrete is like a compressed biscuit, extremely hard under compression, and prone to sudden fracture once stretched.

This phenomenon caused a painful lesson in the 2008 Wenchuan earthquake.

Precast Round Ferrule

But now, a new material that can make concrete “bend over” is changing this situation.

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Stagnation of demand in the north, weakness in the south, and polarization in the concrete market

On November 21st, the national concrete price index recorded 90.

47 points, a month on month decline of 0.

33% and a year-on-year decline of 19.

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47%.

The national market has entered the traditional off-season, and the overall market is characterized by generally weak demand and weak prices, with significant regional differentiation.

In the north, demand has shrunk significantly due to low temperatures, while in the south, prices are difficult to support due to insufficient demand or weather factors.

The specific demand and price situation in each region are as follows:.

Research on the Relationship between Porosity, Mechanical Properties, and Permeability of Permeable Concrete

With the acceleration of urbanization, urban surface hardening has led to a decrease in rainwater infiltration capacity, causing environmental problems such as waterlogging and a decrease in groundwater level.

Therefore, building “sponge cities” has become a goal for more and more cities.

Plastic Rebar Chairs

Permeable concrete, as a new type of eco-friendly building material, has a special pore structure that can effectively discharge surface water, alleviate urban heat island effect and waterlogging, and has been widely used in urban roads, squares, parking lots and other projects.

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