The technical term is efflorescence. Over decades, or even centuries, nitrates have accumulated in the soil. These can be urea from animals that first penetrated the ground and later seeped into the ...

That chalky white powder isn't damage — but it might be telling you something important.

Efflorescence is not a rock band. That’s Evanescence. Efflorescence is the white, chalky substance that appears on concrete, pavers, brick, and stucco. It is residue that is left behind when hard, ...

DEAR TIM: There are white deposits on my chimney, on the face of a retaining wall and on my paver patio. I sometimes see these white crystals near cracks in my basement walls. I’ve tried washing them ...

It can be quite frustrating when that white, chalky substance known as efflorescence or "new building bloom" shows up on your freshly poured surface. Luckily, efflorescence can be treated and removed, ...

Efflorescence is a powdery deposit of salts which forms on the surface of bricks and mortar. It is usually white but efflorescence may be yellow, green or brown. Salts enter the wall from various ...

A powdery substance called efflorescence will sometimes appear on stone, concrete or tile surfaces. This shows up as irregular, whitish blotches and is especially frequent around joints and grout ...

A powdery substance called efflorescence will sometimes appear on stone, concrete or tile surfaces. This shows up as irregular, whitish blotches and is especially frequent around joints and grout ...