The mixing plant said that the sand and gravel factory has ulterior motives and is using waste materials to add weight.
The sand and gravel factory is accusing them of wrongdoing and claiming that they do not understand the quality of the goods.
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precast-tech
precast-tech
Does the surface of concrete lose powder when rubbed? Don’t take it lightly! There are two root causes, those who work in engineering must
The surface of the concrete is powdery, and when rubbed with hands, it falls off, and when rubbed with feet, it becomes dusty.
Some people don’t take it seriously and think that sweeping is enough.
They wait until the first party inspects the house and draws a mark on the wall with the key, and then wait until the floor is finished and the epoxy peels off before they think about finding the cause.
It’s too late.
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Say goodbye to tedious construction! Redefine the quality of PC by imitating masonry composite molds
In the context of construction industrialization, precast buildings (PC) have become the undisputed “new favorite” of the industry due to their high efficiency and environmental advantages.
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How to treat the concrete base before laying acid resistant bricks? Take these steps well to prevent later hollowing and leakage
Many anti-corrosion projects encounter problems such as brick detachment and acid leakage in gaps.
In addition to improper selection of bricks and mortar, the most easily overlooked issue is inadequate treatment of the concrete base.
Standardizing grassroots construction is the foundation for the long-term use of acid resistant bricks.
The detailed steps are as follows:.
Why can a set of concrete data also become an asset?
Recently, the “Concrete Mix Proportion and Loss Dataset” of CCCC First Harbor Engineering Co.
, Ltd.
Fifth Engineering Co.
, Ltd.
was registered and listed on the Northern Big Data Trading Center and Hebei Provincial Data Trading Service Center.
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Watering and maintenance of concrete for rural house construction [Part 2]
Preface: Poor curing of concrete leads to cracking, sanding, and even watering is useless.
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How do point like explosions occur on the surface of concrete construction
Visual survey: Conduct a comprehensive scan of the surface of concrete components, record scattered bulges and collapse points, and confirm that the diameter of the explosion points is mostly between 1-8cm, and powdered aggregates are often visible in the center.
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Research on Preparation and Application of TiO2 Photocatalytic High Brightness Polyurethane Concrete Tunnel Pavement
Highway tunnels are typical semi enclosed traffic spaces, where the “black hole/white hole” effect at the entrance often coexists with exhaust gas retention, long-term affecting driving safety and environmental quality.
By the end of 2024, there will be 28700 operating highway tunnels in China, and the proportion of long and large tunnels will continue to rise.
The current tunnel pavement is still dominated by hot mix asphalt mixture, which is sensitive to temperature and service environment.
Under the combined effects of high humidity, high temperature, and exhaust corrosion, it is prone to diseases such as rutting, cracking, and aging, making it difficult to meet the higher requirements for durability, greening, and functionalization of tunnel pavement.
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Is there a total cracking in high-temperature concrete curing during summer? Teach you 3 ways to save money
The freshly poured concrete has a smooth and tidy surface, and when I saw it the next day, fine lines crawled from the corner of the wall to the middle of the board, like spider webs.
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