PIndentations,
curves or pores are acceptable on the outer surface of the product. In the production
process, deviations in product dimensions of ± 3 mm are acceptable. All this
does not affect the quality of production and does not reduce the operational
time.
In
some cases, various hydration products or white stains (efflorescence) are
released during cement hydration (during reaction with water). The appearance
of white spots on the surface of concrete products is not considered a product
defect - it is a sure sign of Portland cement hardening. It is impossible to
prevent the formation of white spots, they disappear with time and do not
reduce the quality of the product. If the product is used in areas protected
from rainwater access, these white spots can persist for a much longer period
of time.
When
a wet surface dries, fibrous cracks may become visible on it. These small
cracks do not reduce the quality of the materials.
Visual
scratches and abrasions in the top layer that occur during loading and
transportation are acceptable for concrete products. When assembling a concrete
product, scratches may be visible on the surface caused by the use of
construction equipment and mechanisms, but this does not reduce the quality of
the product.
