Rust Impact in Reinforced Concrete - Severe Rust - Causes expansive pressure as rust occupies more volume than steel. - Leads to cracking and spalling of surrounding concrete. - Significantly reduces structural strength and durability. - Surface Rust - Reduces the cross-sectional area of steel bars. - Slight cracks may appear in concrete. - Strength is compromised but not as severely as with deep corrosion. - Protected Steel - Coated or well-embedded steel remains intact. - Concrete stays solid