A brick is a fundamental building material composed typically of fired clay or molded concrete aggregates. Its structural integrity and durability are derived from the chemical composition of its raw materials, which often include aluminosilicates, ensuring high compressive strength after curing. The manufacturing process involves controlled thermal treatment, which causes irreversible chemical and physical changes—such as sintering in fired clay—leading to a dense, rigid solid. These materials are utilized in civil engineering for load-bearing walls, retaining structures, and cladding due to their proven thermal mass and resistance to weathering, representing a cornerstone of material science and construction technology.