Swelling with concrete foundations is a very common problem. The white powdery substance you see outside your basement wall is a flower and indicates that moisture is in contact with the masonry. Don’t worry, this unpleasant construction is not dangerous. Flowers are just salt and can be easily removed with flower removers or other cleaning techniques.
This does not necessarily mean that there will be interference. We recommend checking gutters, downspot drain lines for proper operation. Flowers are found on many houses without water entering the house. But, it does alert you to the possibility that future steps may be needed.
What is happening is that water seeps into the block or concrete wall and as soon as water evaporates from the surface, the mineral deposits are left behind in the form of white matter. Although inflorescence is usually a visual problem, if the flower crystals grow inside and below the surface, it can cause the basement wall to expand, which occurs when the surface peels off, protrudes, or Slips Salt pushes inwards and outwards and can eventually cause wear and tear.
Flowers, water soluble salts come from many possible sources. First of all; Water must be present to dissolve and transfer salts. Groundwater is often the source of flowers. There must be a way to move or transfer water salts to the surface. The more dense the material, the harder it is for the salts to reach the surface. On the other hand, the more insecure the material, the easier it will be for salts to move and accumulate. Salt-bearing water, when it reaches the surface of a structure, becomes air vapor to collect the salt.
When moisture is low, water can evaporate before reaching the surface of the structure, leaving salt deposits beneath the surface, and is invisible. When the humidity is high, the evaporation of water is slowed down which gives more chance to salt to accumulate.
Since moisture has a definite effect on the appearance or absence of salts, it can be assumed that flowering is a seasonal problem. After a rainy winter, the flowers increase in intensity, fall in the spring, and virtually disappear in the summer. This cycle can be repeated for months or years, but usually the flower intensity decreases in all cases except in very large cases, and it should be practically eliminated by about the third year.
I repeat, this does not necessarily mean that there will be interference. Checking the exterior for grade issues and low spots, ensuring proper operation of the bottom areas and keeping water away from the foundation can help prevent flowers on the exterior of your foundation wall.#Concrete #Exterior #flowers #Wall