Oxidación vs. Corrosión: ¿Cuál destruye tu estructura?

Does aluminum really NOT rust? Why does steel become covered in brown rust and deteriorate if left unprotected? In this video from Lápiz y Concreto (Pencil and Concrete), we analyze the materials science and chemistry behind corrosion in construction. Many believe that aluminum is immortal, but the reality is that it DOES rust, only it does so in a clever way: it generates a microscopic layer called aluminum oxide (alumina) that acts as a passive shield. On the other hand, the iron in structural steel reacts with oxygen and moisture, creating a porous oxide that corrodes the piece and compromises its structural strength if there is galvanic corrosion or a lack of maintenance. If you are a civil engineering or architecture student, or if you work on construction sites, knowing the difference between the oxidation of steel and aluminum will prevent you from making serious mistakes when mixing profiles and materials in your projects. Follow us on our social media: 📸 Instagram: @lapizyconcreto 🎵 TikTok: @lapizyconcreto Video Chapters: 00:00 - Introduction: Steel vs. Aluminum in Water 00:40 - The Real Difference Between Oxidation and Corrosion 01:05 - The Chemical Superpower of Aluminum (Alumina) 01:35 - The Destructive Cycle of Iron Oxide in Steel 02:18 - Chlorides: The Number One Enemy of Reinforced Concrete 02:40 - How to Tell if a Rusty Rebar Is Still Suitable for Construction? 03:10 - What the ACI 318 code says 03:57 - The secret of the Eiffel Tower and next video #SteelVsAluminum #CivilEngineering #MaterialsScience #PencilAndConcrete #Construction #Corrosion #AnchorTensioners #Formwork #Forming #SoilMechanics #Structures #Anchors #StructuralFailures #ConstructionSupervision #ConstructionMexico #Rebar #CivilEngineer #ConstructionSite