Limakerroksen

Limakerroksen is a term used in Swedish-language technical literature to denote a distinct layer within a material system that is enriched in lime-based binders or calcareous components. The term appears in contexts such as historic masonry, lime mortars, and sedimentary geology, where a specific stratum or interlayer can influence durability, moisture movement, and mechanical behavior.

In construction and conservation, limakerroksen often refers to a plaster or mortar layer that separates successive building stages or wall finishes. In geology, it may describe a bed or seam where calcite-cemented material forms a recognizable, lime-rich interval.

Typical properties include higher porosity and vapor permeability compared with surrounding non-lime layers, lower density, and moderate strength. The presence of lime affects weathering, salt transport, and compatibility with historic materials, making limakerroksen relevant for restoration planning.

Identification and analysis rely on petrographic microscopy, X-ray diffraction, and scanning electron microscopy to confirm mineral composition, cement types, and microstructure. Porosity and pore-size distribution can be assessed by imaging and mercury intrusion data.

See also: lime mortar, plaster, stratigraphy, lime-plaster layer.