A chemical reaction in mortar or concrete between alkalies from portland cement or other sources and certain constituents of some

1. The degree to which a paint resists reaction with alkaline materials such as lime, cement, plaster, soap, etc.; a

Any of the various chemically active bases such as the soluble salts of metals, e.g., the water-soluble salts of sodium

Any of the various chemically active bases such as the soluble salts of metals, e.g., the water-soluble salts of sodium

A principal constituent of portlandcement clinker; primarily tricalcium silicate, but includes small amounts of magnesium oxide, aluminum oxide, ferric oxide,

In ancient Roman architecture, a room used by bathers for anointing themselves.