Why is marble unsuitable for load-bearing components in outdoor sculptures?
Marble, while prized for its aesthetic appeal in sculptures, is often unsuitable for load-bearing components in outdoor settings due to several inherent weaknesses. Firstly, marble is highly porous, making it vulnerable to water absorption, which can lead to cracking and erosion over time, especially in freeze-thaw cycles. Secondly, its relatively low tensile strength makes it prone to fractures under heavy loads or stress. Additionally, prolonged exposure to acidic rain and pollutants can degrade marble's surface, further compromising structural integrity. For long-lasting outdoor sculptures, materials like granite or bronze are preferred for load-bearing elements due to their superior durability and resistance to environmental factors.
