How does groundwater contribute to efflorescence?

Staining and blistering of wall covering. Efflorescence, spalling of concrete or masonry. Basement moisture sources. Rain and groundwater entering basement. Efflorescence is normally the white, powdery scum that can appear on masonry walls after construction but can also be brown green or yellow, depending on the ... Efflorescence is caused by water penetrating through the basement foundation. This moisture dissolves salts within the masonry materials. What Causes Efflorescence? · Low temperatures · Moist conditions · Condensation · Rainfall · Groundwater or dew · Additional water to aid in cement trowelling. Oct 14, 2020 ... Efflorescence is caused when soluble salts and other water soluble minerals are dissolved within a hard cementicious or masonry substrate. When water is added to Portland cement in the mixer, a chemical reaction called hydration occurs. Cement hydration is what causes concrete to harden and gain ... The efflorescence process occurs when water carrying soluble salts is transported through the concrete foundation wall via capillary action or water vapor ... Worsening matters is very cold air temperature, which causes the water to freeze and expand. What starts as a small chimney leak can eventually lead to ... Efflorescence is caused by a combination of circumstances including: presence of soluble constituents, presence of water to dissolve the soluble constituents, ... What Causes Efflorescence? · 1. Water Water plays a central role in the efflorescence process. · 2. Porous Materials Efflorescence is most common in porous ...