To produce Portland cement, limestone is mixed with raw materials such as siliceous stone and clay and is heated to about 1,450 °C. During this process, an intermediate product called ‘clinker ...

Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm, shallow seas settling and being compressed and hardened until it becomes stone.

There's a certain raw beauty of natural stones, that make the space look ... and even exterior cladding. Limestone, with its soft, muted tones and Travertine, characterised by distinctive veining ...