Construction Precast Development
Precast News From China
precast technology developments
From September 18 to 20, 2026, China Concrete and Cement Products Association will organize and hold a series of activities to promote the “four new” (new products, new technologies, new equipment, new applications) achievements during the 2026 China International Concrete Expo, including public online voting activities, and the “four new” achievements promotion conference of the Expo, and promote the achievements through the association’s official website and official account.
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Source: Guizhou Pre mixed Concrete Industry Association.
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On September 15, it was reported that the information of the China National Intellectual Property Administration showed that Huaxin Building Materials Group Co.
, Ltd.
applied for a patent entitled “a microencapsulated crack resistant concrete and its preparation method”.
Application publication number CN122725731A, application number CN202610947114.
X, application publication date September 11, 2026, application date June 29, 2026, inventors Li Yeqing, Ma Li, Wang Yunyao, Yu Songbai, Jiang Songtao, Zheng Yunhao, patent agency Hubei Wuhan Yongjia Zhuanli Agency Co.
, Ltd.
, patent agent Li Yanjing, classification number C04B28/04.
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This case uses the Abaqus/Explicit explicit dynamic solver to conduct numerical simulations of uniaxial compression tests on concrete cylinders, studying the damage evolution, stress distribution, and the entire process of splitting failure of concrete columns under axial compression.
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Chen Wenhai (1990-), male, master’s student, engineer, research direction: research on new building materials.
Email： 810159416@qq.
com .
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According to GB50204 “Code for Acceptance of Construction Quality of Concrete Structures”, the construction quality acceptance of concrete structure sub projects must not only be qualified in terms of visual quality, but also in terms of structural entity inspection.
The structural entity inspection mainly targets representative parts related to the safety of concrete structures, including three major items: ① concrete strength, ② thickness of steel reinforcement protective layer, and ③ structural position and size deviation.
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Abstract: The apparent quality of concrete structures is an intuitive external representation of the quality of the structural entity, the level of construction technology, and the durability of the project, and is not simply a matter of appearance.
There is a common industry problem in the current field of construction and municipal engineering, which emphasizes structural strength over apparent quality, prioritizes subjective experience calculation over refined process control.
Honeycomb, rough surface, bubbles, exposed reinforcement, holes, slag inclusions, edge and corner defects, surface cracks, and uneven color surface defects have been widely present for a long time.
Most participating units classify such problems as minor quality defects and adopt simple repair and masking treatments, without conducting root cause tracing and systematic rectification, resulting in the continuous existence of construction process hazards, directly affecting the compactness, protective layer thickness, carbonation resistance, and long-term service durability of concrete structures.
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I am Mr.
Liu, a middle-aged engineer who works tirelessly.
I hold a national first-class construction engineer certificate and a national registered supervising engineer certificate.
With nearly 20 years of experience in building and decorating, I share my practical experience, life, and thoughts on architecture and decoration.
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If you stand between the high-rise buildings in the city and look up, you will find a very magical thing.
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The temperature difference between day and night is large, with less rainfall and higher wind speeds, generally ranging from level 4 to level 5; The air is dry and the humidity is low (generally<30%).
These will cause frequent drying shrinkage, air drying cracks, or a series of other problems in concrete.
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