@crash_before_cubicles on Instagram: "Never stand under a concrete pump boom — it’s one of the most dangerous spots on a job site. Here are the main reasons (backed by industry safety standards like ACPA, OSHA, and real accident history): 1. Boom collapse or structural failure The boom is a long, heavy articulated arm (often 30–70+ meters) holding concrete-filled pipes under high pressure. Metal fatigue, corrosion, weld cracks, overload, previous damage, or sudden brittle fracture can cause it t