Construction Precast Development
Precast News From China
conpd0523 
In March 2026, the Outline of the 15th Five Year Plan for National Economic and Social Development of the People’s Republic of China was officially released.
This landmark document, spanning tens of thousands of words, not only outlines the country’s development blueprint for the next five years, but also lays the “golden track” for the concrete and cement products industry between the lines.
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Recently, we have published several articles on concrete tax reform – from the policy warning of “3% tax rate cancellation, 13% era approaching”, to the preliminary suggestion of “how to maintain profits”, to the urgent reminder of “4 things must be done”.
Each article has received a lot of comments, but what people are most concerned about is: how to deal with old contracts after the policy has been implemented? How to issue invoices for cross period business? How should various departments within the company cooperate?.
Concrete gradually hardens and increases its compressive strength through the bonding effect of cement.
Due to the fact that the hardening of cement is not achieved overnight, but gradually becomes perfect over time.
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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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Liu Gong, the slump of the concrete in the third dam section seems a bit high.
Should it be adjusted.
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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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 market experienced partial fluctuations, with Ganzhou falling by 25 yuan/ton and Wanzhou rising by 20 yuan/ton.
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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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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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