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As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

As water is absorbed by the cement, carrying environmental salts, acids and a host of chemicals well into the material and these reactive agents build up over time and attack the steel. As soon as the pH of the cement drops below 8 or 9…“the passive oxide film protecting the steel can no longer be maintained and corrosion of the steel resumes.” (Dept. Of Defense - "Corrosion Prevention and Control: A Program Management Guide for Selecting Materials" - September, 2006 )

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