Ca(OH)2: The active ingredient of slake lime. It is also the main constituent in cement (when wet). This material is referred to as "lime" in field terminology. (Bul D11)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}