To ensure the uniformity of concrete, the mixer truck should run at high speed for 20-30 seconds before unloading, and then discharge in reverse.
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precast-tech
precast technology developments
Ideas and strategies for preventing and controlling concrete cracks
Concrete, as the most widely used building material in modern civil engineering, has always been a concern for its cracking problem.
Extensive engineering practice and research have shown that cracks are an inherent characteristic of concrete materials that cannot be completely eliminated, but can be effectively controlled through scientific means.
According to their causes, concrete cracks can be mainly divided into two categories: structural cracks and non structural cracks, with the latter accounting for more than 80% of engineering cases.
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American Standard Concrete Design, Phase 4- American Standard Wind Load (Part 2)
When working on overseas projects, wind load calculation is often the “first hurdle” for engineers.
This issue will focus on the specific implementation of wind loads on American Standard (ASCE 7) concrete structures in Midas Gen overseas version, and compare it in detail with the national standard (GB 55001-2021) to help you easily cope with overseas project challenges.
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The efficient concrete conveying and pouring system developed by Beijing Construction Machinery Institute has been successfully applied in
Beijing Construction Mechanization Research Institute Co.
, Ltd.
aims to meet the urgent needs of large-scale infrastructure construction such as water conservancy and hydropower, wind power, highways and railways, bridge and tunnel engineering, and has developed a high-efficiency concrete conveying and pouring system.
It has successfully achieved a large number of engineering applications and has been applied in batches to many national key engineering projects such as the Century Engineering Pinglu Canal, and exported to international projects such as the Kekai Hydropower Station in Angola.
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The review meeting for the group standard “Technical Regulations for Integration and Application of Intelligent Management System for
Recently, the review meeting of the group standard “Technical Regulations for Integration and Application of Intelligent Management System for Concrete Construction” (hereinafter referred to as the “Regulations”) managed by the China International Association for the Promotion of Science and Technology was successfully held in a combination of online and offline forms.
Industry experts from universities, research institutes, construction enterprises, and supervision units form a review committee to comprehensively evaluate the standards.
Relevant leaders of the Standardization Working Committee of the Science and Technology Promotion Association attend the meeting.
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Research on the mix proportion and flexural performance of high-performance concrete for airport runway
Due to the insufficient research on concrete mix design for airport runways, the durability performance of many airport runway concrete cannot meet the design requirements, and the actual service life is generally lower than the design life; And the mix design of ordinary concrete mainly adjusts the workability of concrete by determining the water cement ratio and changing the water consumption.
If applied to high-performance concrete, it will lead to an increase in cement consumption.
So it is very important to use appropriate concrete mix design methods.
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80% of a building’s carbon emissions come from concrete!
When a new building rises from the ground, the steel bars and concrete interweave into a network, and the arm of the tower crane is like the bones of the city, all of which demonstrate the amazing greatness of modern architecture.
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The new type of concrete named by the Ministry of Housing and Urban Rural Development! Thoroughly solve the problem of building leakage!
On October 11, 2025, the State Council Information Office held a series of themed press conferences on the high-quality completion of the 14th Five Year Plan.
Vice Minister Li Xiaolong of the Ministry of Housing and Urban Rural Development introduced the promotion and guidance of the application of new materials in response to questions from reporters, among which “self-healing concrete” was mentioned as a model of new materials that can significantly improve building performance.
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Concrete energy storage! Your house and the road you walk are all power banks
On September 29th, a news from a research team at the Massachusetts Institute of Technology (MIT) caused a shock in the industry: their new type of electrically conductive carbon concrete (EC ³) has increased the energy storage density of concrete by 10 times, making the concept of “building as a battery” a reality.
The relevant research results were published in the Proceedings of the National Academy of Sciences (PNAS) in the United States.
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6 key control factors, scientifically controlling the quality of concrete construction
The quality of concrete, as an important raw material in construction projects, directly affects the safety and durability of the project.
In daily concrete construction, there are many objective and subjective reasons that lead to improper control measures, resulting in the actual compressive strength of concrete being lower than the design strength, posing hidden dangers to the project, and even catastrophic collapse.
To ensure and improve the quality level of concrete in engineering, scientific control measures must be taken to ensure the quality of each procedure and process during the production and use of concrete.
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