Recent Changes to Cement Specifications

This webinar will provide a summary of recent changes to ASTM C150 and AASHTO M85. Since 2003, a Joint AASHTO-ASTM Task Group has been reviewing differences between these two specifications for portland cement and developing proposals for improvements to both specifications with a goal of providing consistent requirements and improvements to concrete quality. These proposals have now received approval from each organization and US specifications for portland cements will have no significant technical differences!

The detailed changes to specification requirements will be reviewed, including:

• Provisions for a new cement type—Type II(MH)
• Requirements for cements incorporating inorganic processing additions
• New fineness requirements
• Revisions to sulfate content provisions
• New reporting requirements for cement mill test reports

In addition, ASTM C595, Standard Specification for Blended Cements, and C1157, Standard Performance Specification for Hydraulic Cement, have also been revised. The approved changes include a new Type IT (ternary) cement. 

Verified participants in this webinar will be awarded 0.1 CEUs (usable for 1.0 PDH in most places) sent via email after submitting an evaluation.

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