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Anonymous users2024-02-121. In civil engineering, the process of chiseling hair cannot be replaced by sprinkling stones. Because the purpose of chiseling is to consider that when the concrete is poured again, there can be a good connection with the concrete poured before, and the stone scattering can not have this effect.
2. Chiseling is a kind of hair"Chop the axe"The tool chiseled out the finished concrete structural surface with a series of indentations. The function is to make the construction surface of the two construction stages firmly bonded. Usually in the cast-in-place structure, after the cast-in-place slab is poured, it is necessary to chisel and carry out the pouring of the next layer of column walls.
Let the concrete bond firmly. According to the construction process, the chiseling is divided into: all chiseling and star chiseling.
Its purpose is to use a drill to make the surface of the concrete rough, and then rinse it with water, mainly to increase the adhesion of the concrete and its cohesion.
3. The term civil engineering generally refers to civil engineering, and civil engineering refers to the planning, construction and maintenance of all infrastructure related to water, soil and culture. At present, general civil works projects include: housing, roads, waterworks, drainage, flood prevention works and traffic, etc.
In the past, all civil engineering projects for non-military purposes were classified as this category, but with the increasing breadth of engineering science, many of the contents that originally belonged to the scope of civil engineering have become independent disciplines. Nowadays, most of the civil engineering generally refers to small civil engineering specialties, including the one-time construction of residences, public buildings, structures, etc. Such as precipitation, excavation, foundation, pouring columns, beams, slabs and walls and other maintenance structures of pouring and masonry engineering and supporting steel bars, simple decoration, etc.
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Anonymous users2024-02-11Original soil backfill refers to the filling of the excavated soil and stone of the regressive building into the excavation part of the building in the process of building construction, so as to achieve the purpose of filling the excavation part of the building. Slag backfill refers to the addition of a certain amount of gravel on the basis of excavated soil and stone in the process of building construction, which is finally filled into the excavation part of the building after vibration mixing, and after a certain screening, so as to achieve the purpose of filling the excavation part of the building.
The biggest difference between the two is that the original soil backfill only needs to fill the soil and stone excavated by the building stuffy object into the building excavation site, and the slag backfill needs to fill the soil and stone excavated from the building into the building excavation part, and also needs to add a certain amount of gravel, which is vibrated and mixed, and finally filled into the building excavation part after a certain screening.
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Anonymous users2024-02-10How to distinguish between backfill and raw soil - experience.
First of all, the two are not the same from the purity of the soil, the original map is after a long-term geological vertical subsidence, naturally formed, the soil is relatively pure, it contains, the material composition should be about the same, and the backfill, the composition is more complex, after digging out, combined with the soil of the ground, so its purity, not as good as the original soil.
In addition, the density is not the same, the fierce open soil dug out and backfilled is relatively loose, while the original soil, the density, is relatively high and very compact. and other backfills, even after tamping, its density is very different from the original soil.
The third is that the geological layer is different, the original map contains the sedimentation of specific materials of the age at that time, and the archaeologists open a geological layer, and determine what age the address belongs to through the remnants of some materials such as bricks and tiles, porcelain tiles, and animal bones. And backfill is not available with such an amount of information.
Therefore, if the ancient achievements are excavated and it is found that there is a lot of backfill around, the possibility of fraud is quite large, such as Cao Cao's tomb. Experience.
It's interesting, I'll show you it. But there is only a plan, and you have to find a local foreman to refine it.
The major of architecture cultivates generalist and compound senior engineering and technical talents who have knowledge of architectural design, urban design, interior design, etc., can engage in design work in the design department, and have a variety of career adaptability. >>>More
It depends on what the factory does, biological research will be exposed to a lot of carcinogens, but only large-scale production, some biological products have very high requirements for the cleanliness of the production process, and generally will not affect the body.
I feel that even if the prospects of the architectural design industry are not very good, you should work harder to make your works more prominent, let others see your works, and let others admire your works, as long as your works have advantages, they will be used by more people, there is no unprofitable industry, this is the truth, as long as you are excellent, you will be outstanding.