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

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

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

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.

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

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.

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

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

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

Thank you