cementklinkers

Cementklinkers are cement-based bricks or paving units made from Portland cement, aggregates such as sand and gravel, and water. They are designed to resemble traditional clinker brickwork while offering the benefits of precast concrete, and they are commonly used for exterior walls, facades, and paved surfaces.

Manufacture and variants: They are produced as precast units in factories using molds, sometimes with pigments or surface treatments to achieve color and texture. Quality control ensures uniform density, low water absorption, and good frost resistance. The products can be smooth, brushed, or textured on the surface.

Properties and performance: Cementklinkers have high compressive strength, low permeability, and good weather resistance when properly cured and installed. They are heavier than many clay bricks and can be more resistant to impact damage. Temperature changes and substrate movement must be accommodated in the installation.

Use and installation: Installation typically uses mortar or a bed joint and sometimes dry techniques with interlocking profiles; joints are filled with mortar or grout to prevent water ingress. They are compatible with standard masonry practices and can be used for facades as well as paving.

Maintenance and environment: They require periodic cleaning; repairs involve replacing damaged units or repointing joints. The cement-based composition has a higher embodied energy than clay bricks, but recycled aggregates and supplementary cementitious materials can reduce environmental impact. End-of-life recycling as aggregate is possible.