Construction Precast Development
Precast News From China
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Therefore, this article selects C30 and C50 strength grades of concrete widely used in engineering, and studies the influence of mud content (0%~7%) of machine-made sand on their properties through experiments, in order to provide reference for the practical application of machine-made sand.
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With the development of modern building structures towards high-rise and large-span directions, C80 and above high-grade concrete has gradually become the core material for super high-rise buildings, large-span bridges, and marine engineering due to its excellent mechanical properties and durability.
However, the characteristics of high dosage of cementitious materials and low water cement ratio (usually ≤ 0.
30) lead to a significant increase in the viscosity of concrete, causing construction problems such as high pumping resistance, difficulty in compacting, and susceptibility to honeycomb and rough surfaces, which seriously restrict its engineering application effect.
Especially in complex structural construction, high viscosity concrete is prone to pipe blockage, delamination, and even affects structural homogeneity and long-term durability, becoming a bottleneck restricting the development of high-strength concrete technology.
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1 The quality management of raw materials should extend to the place of origin or suppliers.
Nowadays, it is difficult to improve the concrete strength of many mixing plants.
If you want to improve the strength of concrete, you are in a fierce market competition environment and face the dilemma of whether to increase costs and reduce profits.
Through in-depth investigation and analysis, it was found that most of these types of mixing plants have entered the misconception of using concrete admixtures, as follows.
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Architecture One (JZXSW2015) – a WeChat premium account subscribed by construction workers, telling the emotional journey of bricklayers and sharing the ups and downs of engineering workers.
Click on the blue text “Architecture One” under the title to follow, and we will provide you with valuable and content reading enjoyment.
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As a design worker who crawls and rolls on construction sites, I have a deep love for concrete that is engraved in my bones.
The relatively delicate and natural rough texture of the material has a unique appeal to me.
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On March 21st, the 15th Precast Concrete Technology Forum kicked off at the Xicheng Campus of Beijing Jianzhu University.
The theme of the conference is “Green, Low Carbon, New Chapter of Digital Intelligence Spectrum”, aiming to review the 15 year development history of the precast concrete industry and jointly explore the innovative path of precast concrete technology.
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On April 28th, the national cement market experienced a small-scale decline, with Chongqing and Binzhou dropping by 30 yuan/ton.
On April 28th, there was a small-scale decline in sand and gravel prices nationwide, with Maoming, Yangjiang, Longyan, and Pingdingshan dropping by 1-2 yuan/ton.
On April 28th, the national concrete market experienced small-scale fluctuations, with Yongzhou rising 5 yuan/cubic meter and Sanming, Longyan, and Pingdingshan falling .
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Brazil, as the largest economy in Latin America and one of the world’s largest emerging markets, is currently in a historic window of development for the concrete and cement products industry.
On August 25-27, 2026, the Concrete Show South America in Brazil will be held at the S ã o Paulo Exhibition Center.
This is not only an excellent window for in-depth investigation of local industry demand and connection with first-hand business opportunities, but also a crucial starting point for enterprises to go global in 2026.
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Cracks in the roof fine aggregate concrete protective layer are a common quality problem in roof engineering.
In response to this, China Construction Third Engineering Bureau Third Company has taken a series of construction measures in practical projects to prevent and control the problem of cracks in the roof fine aggregate concrete protective layer, which is worth referring to and learning from.
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