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What are the effects of algae growth on concrete surfaces?
Algae growth on concrete surfaces is more than just an aesthetic concern—it can lead to significant structural and functional issues. When algae colonize concrete, they retain moisture, accelerating the deterioration process through freeze-thaw cycles and chemical reactions. Over time, this weakens the surface, causing cracks, spalling, and reduced durability.
Additionally, algae create slippery biofilms, posing safety hazards in walkways, driveways, and pool decks. Their presence also attracts other microorganisms, further degrading the material. To mitigate these effects, regular cleaning with pressure washing or eco-friendly algaecides is recommended. Preventive measures like proper drainage, sealants, and sunlight exposure can inhibit algae colonization. Understanding these impacts helps in maintaining concrete longevity and safety.
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