Concrete segregation refers to the phenomenon of larger aggregate particles separating from the cement paste on the surface or inside of the concrete, which will affect the surface quality and strength of the concrete. The following are several common methods for judging concrete segregation:
1. Visual observation method: Observe on the surface of the concrete to see if there are exposed aggregate particles and convex surfaces. There are obvious unevenness on the surface of the concrete.
2. Touching method: Touch the surface of the concrete with your hands to feel whether there are irregular aggregate particles exposed. The surface texture is not smooth and has a rough feeling.
3. Water washing method: Use a water pipe to wash the concrete surface and observe whether there are many cement slurry particles suspended in the washed water.
4. Vibration method: When vibrating, pay attention to the changes in aggregate distribution on the surface and inside the concrete. If there is separation, the vibration method needs to be adjusted appropriately or the vibration time needs to be increased.
5. Detailed control method during construction: During concrete construction, attention should be paid to meticulous construction, such as construction in accordance with the specified pouring method, vibration requirements, concrete slump and other parameters during the construction process. , can effectively avoid the occurrence of concrete segregation.
Above There are several common methods for judging concrete segregation. If it is judged that there is concrete segregation, the concrete should be rectified in time to ensure the quality of the concrete project.</p
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