It’s not just about good technology that wins, but about whose system better matches the game rules of this industry, who can make it to the end.
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conpd0523
Water conservancy concrete pouring site: How does the supervisor monitor every aspect of the dam from opening to maintenance?
Liu Gong, the slump of the concrete in the third dam section seems a bit high.
Should it be adjusted.
Comparative analysis of rebound core testing results of concrete at different age groups
The rebound method and core drilling method, as the main methods for testing concrete strength, each have their own advantages and disadvantages.
The rebound method is easy and fast to operate, but it is susceptible to various factors such as the surface condition and age of the concrete; The core drilling method yields intuitive and accurate results, but it may cause damage to the structure.
Therefore, comparing and analyzing the results of these two testing methods at different age groups in the article is helpful for a more comprehensive understanding of the variation law of concrete strength and providing scientific basis for engineering quality control.
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Zhiyan Consulting releases a research report on the development history, market overview, and future prospects of the commodity concrete
Commercial concrete (ready mixed concrete) refers to a concrete mixture made of cement, sand and gravel aggregates, water, and additives, mineral admixtures, and other components added as needed in a certain proportion, measured and mixed at a mixing plant, sold, and transported by transport vehicles to the place of use within a specified time.
The demand for commodity concrete industry is shifting from a single dependence on real estate to a diversified pattern.
In 2024, the production of commercial concrete in China will be 2.
22 billion cubic meters, with a sales volume of 2.
21 billion cubic meters.
The demand in the real estate sector will account for 53.
7%, while other sectors will account for 46.
3%.
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On April 23rd, the national cement, sand and gravel, and concrete market trends
On April 23rd, the national cement market experienced partial fluctuations, with Ganzhou falling by 25 yuan/ton and Wanzhou rising by 20 yuan/ton.
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Loss, loss, loss! The concrete industry is deeply mired in the ‘cold winter’
On April 22nd, with the release of the first quarter report on the construction of the leading western region in the concrete industry, the deep difficulties of the concrete industry were completely exposed.
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Components of macroscopic mechanical properties of recycled concrete
The elastic modulus of natural aggregates is significantly positively correlated with the elastic modulus and peak stress of recycled aggregate concrete (MRAC), and weakly negatively correlated with the peak strain.
The natural aggregate modulus increased from 30.
8 GPa to 83.
3 GPa, the elastic modulus increased by 38.
4%, and the peak stress increased by 11.
4%.
High modulus natural aggregates bear more loads and reduce system deformation, which is the fundamental factor in improving the stiffness of recycled concrete.
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【 Solve segregation! 】 Quickly solve in 3-5 minutes, without affecting the mechanical washing energy and durability of concrete
SR-3 pre mixed concrete segregation regulator is an upgraded product of pre mixed concrete segregation regulator and concrete anti segregation agent.
Compared with the previous generation product, it has the following characteristics:.
Typical case of innovation during the 14th Five Year Plan period: digital concrete design methods and applications
This case focuses on concrete design and performance control scenarios for infrastructure projects such as bridge engineering and road engineering.
Aiming at the pain points of relying on experience, low efficiency, and insufficient performance prediction in traditional concrete mix design, an integrated technical path covering multi performance prediction models, digital mix reverse design, and engineering adaptability verification has been constructed with “data-driven+digital modeling+engineering verification” as the core, realizing the transformation of concrete design from “experience trial mixing” to “digital calculation design”, and achieving the technical goals of predictable performance, optimized mix ratio, and verifiable results.
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New technology for construction sites in China! Concrete engineering is’ leak proof ‘!
Recently, the on-site observation and training meeting for improving the quality of municipal engineering construction, hosted by the China Construction Enterprise Management Association, was successfully held at the Wuhan Binjiang Core Area Underground Space Ring Road (Phase II) project undertaken by China Construction Third Engineering Bureau.
More than 200 industry representatives attended the meeting to observe and learn from multiple new technology applications of the project.
Among them, impermeable concrete innovatively applies structural self waterproofing technology: cement-based permeable crystalline waterproofing agent, which can achieve “watertight” concrete engineering through “self healing” of cracks.
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