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Specialty Chemistry Forums => Other Sciences Question Forum => Topic started by: dexxxx_raw on April 06, 2014, 05:18:20 PM

Title: humidity in cement powder : water vapor or liquid ?
Post by: dexxxx_raw on April 06, 2014, 05:18:20 PM

hello
my question can seem a little bit stupid  :P.however, i get that humidity represents the amount of water vapor contained in air.
 but i'm facing a problem in understanding how a cement powder could contain humidity. to be specefic is this humidty a water vapor or a liquid ? what is the chemical process during wich the h2o molecules are eliminated when this powder is heated ? and finally if this humidity is in form of water why doesn't react with cement ?

thanks.