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The National Academies

NCHRP 20-07/Task 272 [Completed]

Rheological Characterization of Flow Table Reference Material
[ NCHRP 20-07 (Research for AASHTO Standing Committee on Highways) ]

  Project Data
Funds: $90,000
Research Agency: AASHTO Materials Reference Laboratory
Principal Investigator: Haleh Azari
Effective Date: 6/18/2009
Completion Date: 3/31/2011

The objectives of this research are to (1) fully characterize the reference material used in (a) AASHTO M 152, “Flow Table for Use in Tests of Hydraulic Cement,” (b) AASHTO T 71, “Effect of Organic Impurities in Fine Aggregate on Strength of Mortar”; T 137 (ASTM C185), “Air content of Hydraulic Cement Mortar”; and (c) AASHTO T 106, “Compressive Strength of Hydraulic Cement Mortar Using 50-mm or 2-in cube Specimens,". using fundamental measurement techniques and (2) suggest a more efficient method to produce the reference material.

The complete project final report for Project 20-07/Task 272 is available here for downloading.

A summary of the project final report is available as NCHRP Research Results Digest 360.


 

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