What are the typical signs of surface defects in improperly finished concrete?

In the context of properly finished concrete, surface defects are most commonly indicated by visible blemishes and uneven surfaces. When concrete is not finished correctly, it can result in various imperfections such as trowel marks, air pockets, or inconsistent texture that are evident upon visual inspection. These defects can negatively impact both the aesthetic appeal and the performance of the concrete surface, potentially leading to further issues such as cracking or water infiltration.

Uniform color and smooth texture, as mentioned in another choice, actually represent signs of a well-finished concrete surface, where no defects are present. Likewise, hardness and durability refer to the physical properties of properly mixed and cured concrete, which are not direct indicators of finishing quality. A non-porous finish is also characteristic of properly finished concrete but does not specifically reveal defects in finishing. Understanding these nuances helps in identifying whether the concrete finishing process was executed adequately.