The new material developed by researchers from the Norwegian University of Science and Technology and the University of Tokyo is expected to enable the application of desert sand in the field of construction.
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Construction Precast Development
Precast News From China
precast-tech
The new material developed by researchers from the Norwegian University of Science and Technology and the University of Tokyo is expected to enable the application of desert sand in the field of construction.
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In winter construction sites, road surfaces, etc.
, cracks of varying sizes can be seen on the second day after the concrete pouring is completed, and there are more through cracks.
To effectively avoid this problem, attention needs to be paid to multiple aspects:.
Check the wear of the lining plate, blades, and mixing arm, and replace them in a timely manner if they are severely worn; Check the shaft end seal to ensure no leakage of slurry or oil; Perform a jog test run, confirm there are no abnormalities, and then conduct a no-load test run, listening for any abnormal noise or shaking.
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Recently, at the construction site of the T1 and T2 sections of the Shiqiao Extra Large Bridge on the Nanraocheng East Yanta City to Jinxian Expressway in Nanchang, machinery roared and personnel were busy.
The crane smoothly lifted the precast concrete slab, and the workers accurately aligned, calibrated, and fixed it.
The entire set of movements was completed in one go, and the construction site was full of enthusiasm.
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The era is iterating forward, and the wave of architectural industrialization is sweeping across the globe.
When modern architecture is situated in the hinterland of national cultural heritage, finding a balance between historical preservation and design innovation has become a common proposition in the global architecture industry.
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Recently, at the construction site of the T1 and T2 sections of the Shiqiao Extra Large Bridge on the Nanraocheng East Yanta City to Jinxian Expressway in Nanchang, machinery roared and personnel were busy.
The crane smoothly lifted the precast concrete slab, and the workers accurately aligned, calibrated, and fixed it.
The entire set of movements was completed in one go, and the construction site was full of enthusiasm.
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In response to common industry drawbacks such as unstable maintenance conditions and non-standard maintenance operations during the curing stage of test blocks, the Central Research Institute of Shanghai Construction Engineering Group has independently developed an “intelligent maintenance cabin” to build a complete digital control system for the process chain of sampling, warehousing, transportation, standard curing, and unloading.
Through the core architecture of “human cloud platform machine arm test block” four-dimensional real-time linkage interaction, the full process unmanned operation of concrete test block curing on the construction site has been achieved for the first time, providing an efficient, practical, and replicable intelligent solution for on-site material quality control.
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Concrete vibration not carried out in the prescribed order, improper vibration methods, or local missed vibration can lead to local sand and stone concentration, making the concrete loose and not compact, resulting in honeycomb shaped holes or the formation of local holes, especially in areas with dense steel bars, which are prone to adverse diseases such as honeycomb and exposed reinforcement.
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In the field of architecture, plain concrete is highly favored due to its unique texture and natural beauty.
It does not require additional decoration and presents the artistic quality of the building directly with the texture of the concrete itself.
This “natural beauty” has attracted many designers and homeowners.
And behind achieving this effect, it cannot be separated from professional manufacturers of plain concrete.
They upgraded concrete from ordinary building materials to artistic carriers through precise formula design, strict production processes, and meticulous construction management.
This article will analyze the core capabilities of fair faced concrete producers from a technical perspective, taking you to understand the scientific code behind this building material.
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The connotation of alkali aggregate reaction (AAR) can be understood from its name, that is, the alkali substances contained in the concrete slurry react chemically with the active substances in the aggregate, and gel will be formed after the reaction, which will then expand, and finally cause the concrete to crack.
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