Concrete Block Illustration - Hollow Core Brick Design for Construction #3834073 (License: Personal Use)

This vector-style illustration depicts a classic concrete masonry unit (CMU) in vibrant red-orange, featuring three evenly spaced rectangular voids along its length. The side faces show a granular, aggregate-rich texture, mimicking real concrete surfaces, while the top reveals the smooth inner edges of the cores. Rendered in isometric perspective against a black background, the image emphasizes form, function, and material identity.

Used on construction supply websites, architectural education pages, or civil engineering resources to visually represent standard concrete blocks; supports user intent around material selection, specification, or technical documentation.