The role of these teams is to review and comment on the scope of work of the designated FHWA (NCHRP funded) projects, provide technical input for FHWA consideration, coordinate presentation of deliverables to the ETG for deliberation and make recommendations to the ETG for any necessary action.

The Binder ETG Secretary, John D'Angelo will brief on the activities of the Binder ETG.

Brief on proposed changes to specifications being balloted by SOM.

Brief on the timetable of various NCHRP efforts and potential Superpave specification changes that will be sent to the ETG for review.

Brief on the investigation into the source of the dust to binder ratio and the impact changing the ratio to 1.6 for coarse graded mixes.

At the previous meeting the ETG formed a Task Force to review previous ETG efforts to summarize the effects of various options within AASHTO procedures and make recommendations on potential revisions.

Brief on the results of Asphalt Institute investigation on variation of mixture mechanical with VMA changes.

September 12, 2000

Brief on FHWA/industry activities to develop a device to dynamically measure the SGC angle.

Brief on current efforts to relate laboratory void distribution to in place pavements using X-ray tomography.

Brief on the status of effort to identify a relationship between SGC and deformation in pavements.

Brief on the results of efforts to identify a simple performance test procedure for mix design and field control (Task C of NCHRP Project 9-19).

Chuck Marek coordinated the development of a white paper to identify on-going aggregate research, areas where additional research is needed, and activities the ETG could undertake to address areas of concern to the aggregate industry. If appropriate the ETG needs to develop NCHRP problem statements to address these concerns.

As a follow-up from last meeting discussion of Bailey Method, ETG members will be asked to report of experiences using this method.

Brief on procedures used by the FHWA as part of Demonstration Project DP90 for mixture field validation. The need for this procedure was identified in the State survey conducted by the ETG.

Brief on the results of NCHRP 9-12 and the recommendations for the recommendations for the treatment of RAP in Superpave specifications.

Brief on Maryland's and Georgia's successful use of a 4.75 mm size mixture designed using Superpave

Brief on results of results of Purdue pooled fund aggregate study.

Brief on work being conducted to better characterize coarse aggregate shape.

Brief on proposed FY2002 Research Statements that will be proposed to AASHTO and discussion of direction of program.