Roman cement

Use of Roman cement

Mortar that is durable against environmental influences, salt exposure, seawater, moisture and freeze-thaw cycles. Work at low temperatures is possible, high material thicknesses can be achieved, and iron is passivated (corrosion protection of reinforcing steel).

Areas of use for Prompt Fix cement

Binder for very rapid-stiffening mortars, approx. 3-10 min., for casting compounds, ornaments, run mouldings on façades, passivating mortar for iron parts, slurry coats, repair mortar for historic Roman cements.
Binder component for rapid-stiffening mortars, approx. 15-60 min, consisting of Prompt and C2S-rich NHL for masonry mortar, jointing mortar, plinth render, plastering mortar, fair-faced mortars, lightweight plasters, mineral renovation plaster systems, casting mortars, lime building blocks, run mouldings on façades, lime floors, lime fillers, lime terrazzo, thick-bed mortar for terracotta, backfill compounds, lime slurries, stone repair compound, repair mortar for historic Roman limes.

 Roman cement is used in particular for producing hemp-lime. Hemp-lime is a mixture of lime and hemp shiv; it is used to insulate houses, either as retrofitted internal insulation or cast monolithically as a complete wall element.

Preparing substrates

Mineral, load-bearing, absorbent, free of separating layers and gypsum. Well-suited substrates: solid masonry, sound remnants of old plaster, stable Roman cement and Roman lime applications, mineral aggregate, concrete slabs, lime-cement screed.