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Concrete walls are rigid but expensive, slow, impermeable, easy to crack and not ecological. Gabion walls are flexible, permeable, earthquake resistant, cheap, fast, ecological and greenable. Comparison: Choose gabion for ecology, low cost and fast construction. Choose concrete for rigid building walls. For hydraulic and slope projects, gabion is much better.

Gabion service life depends on material: • General galvanized: 5–10 years • Hot-dip galvanized: 10–20 years • Galfan: 20–50 years • Galfan + PVC coated: over 50 years Factors affecting life: environment, humidity, pH value, water flow, UV, installation quality. Good environment and standard installation can extend service life.