Manhole cover 50 by 50 mm

Description

A concrete manhole cover is a framed lid placed over a manhole opening to prevent people, creatures, or objects from falling in [2]. These covers are essential components in sewer and drainage systems [6].

Key Characteristics

• Composition and Durability: Concrete manhole covers are often made from SFRC (Steel Fiber Reinforced Concrete), making them sturdy, well-fitted, and capable of withstanding heavy traffic [5].

• Structure: They are typically framed lids [2] and may be sold as a cover and frame unit [5].

• Shapes and Sizes: Concrete covers, like other manhole covers, are available in various shapes, including round, square, and rectangular [5]. Common square sizes include $500 \text{mm} \times 500 \text{mm}$ [3].

• Security: Concrete manhole covers, especially those reinforced with materials like SFRC, offer superior strength and are designed to be opened and removed only with the use of the right tools [1].

Other materials used for similar products include Cast Iron, Ductile Iron, FRP (Fiber Reinforced Plastic), and composite materials