1. Task Group on Mechanical Behavior of Cement
12th of June, 2012
Westminster, CO

2. AGENDA Members Charge Approach Winter Minutes
Status of Working Document
Next Steps

3. Members Robert Darbe Dan Mueller Deryck Williams Ramy Eid Simon James
Vicente Ciccola
Bernard Fraboulet
Dale Doherty
Jim Davison
Clara Mata
Fred Sabins
Axel-Pierre Bois
John St. Clergy
Rick Lukay
Camille Lerouge
Rob Martin
Tim Johnson
Jeff Moon
Cristiane Richard de Miranda
Andre Garnier
Check for additional members

4. CHARGE
Develop a technical report on the characterization of mechanical behavior of cement and test methods to measure the mechanical parameters of cement in the laboratory. This TR is intended to serve as the basis of an ISO NWI.

5. Approach Combined current methods used in industry
Created working document
Use cooperative testing to refine document
Identify variances
Set testing protocols
Apply limits when necessary
Answer questions

6. Winter Minutes A presentation was reviewed that included:
A summary of the results obtained in the first coop testing effort
A large portion of the data has been collected for the second coop testing effort with the following notes:
7 labs have reported results
Various load and displacement rates documented
Different sample sizes used
Various load frames and instrumentation used
The next step is to combine the coop testing results and include them in an appendix within the working TR. This will be shared with TG along with recommendations for the document.

7. Summary of 2nd Round Robin
7 labs reported
Several Parameters Investigated
Load Frame and Instrumentation
Displacement and Load Rates
Splitting Sample Size
Cyclic Loads
Analysis Technique

8. Status of Working Document
Appendix added containing round robin #2 results.
Minor corrections made

9. Next Steps Add Round #1 Results
Use results to refine sections as necessary
Mixing
Instrumentation
Load/Displacement Rate
L/D ratio
Etc.
Determine if there is suitable supporting test data to have a reproducible procedure
Finalize Document

10. Thank you