Ebelhar named 2015 Chairman of the ASTM International Board of Directors

Words: Barbara AmbachRonald J. Ebelhar, P.E., D.GE, senior principal with Terracon in Cincinnati, Ohio, has been named chairman of the 2015 ASTM International board of directors.

After earning his bachelor’s and master’s degrees in civil engineering from the University of Kentucky in Lexington, Ebelhar joined McClelland Engineers in Houston, Texas, as a staff engineer in 1977, working in various roles in the geotechnical laboratory, information technology and marine geosciences groups. From 1987 to 1996, he served as division manager and then as vice president for Rust Environment & Infrastructure (and its predecessors, S&ME, Westinghouse and SEC Donohue) in Cincinnati, Ohio, before taking the position of vice president with H.C. Nutting in 1996. He assumed his current role when Terracon purchased H.C. Nutting in 2007.

As a project manager for geotechnical and environmental engineering projects worldwide, Ebelhar has provided design, consulting and forensic engineering services for commercial, industrial, transportation, waste disposal and public utility projects; geotechnical engineering design and construction, including site soil response under seismic, cyclic and dynamic loading; and marine geosciences and engineering field explorations. He is a registered professional engineer in eight states.

Ebelhar, who joined ASTM in 1980, is a past chairman of ASTM Committee D18 on Soil and Rock and several D18 subcommittees. An ASTM fellow and 2003 Award of Merit recipient, Ebelhar has received several awards from D18, including the R.S. Ladd Standards Development Award; the Woodland G. Shockley Award; the A. Ivan Johnson Outstanding Achievement Award; two Special Service Awards; and the Committee D18 Technical Editor’s Award for STP 1213, Dynamic Geotechnical Testing II. He also received a Service Award from the ASTM Committee on Technical Committee Operations, on which he served a two-year term. Ebelhar has served on the ASTM board of directors since 2010.

In addition to his ASTM work, Ebelhar is a fellow and member of the American Society of Civil Engineers and a Diplomate, Geotechnical Engineering, in the Academy of Geo-Professionals.
Chemicals In Masonry
September 2026

Mason contractors must deal with chemicals on the job site. One of the main ones comes in the form of dust. Another is acid. From high-rise commercial structures to residential facades, masonry work involves handling raw materials that require careful man

Zach Everett
Safety Library
Safety
Read More
Brick Staining Dos and Don'ts: Managing Modern and Historic Masonry Construction
September 2026

Every mason contractor has encountered it, or will. A replacement brick arrives from a different production run. A cast stone repair patch or perhaps a darker panel stands out against the surrounding installation. Mortar color varies unexpectedly. A clea

Jennifer Gill
Technical Talks
Brick Staining Masonry Staining Staining
Read More
Gables Republic Square & Hotel ZaZa
September 2026

Gables Republic Square / Hotel ZaZa is a 24-story mixed-use boutique hotel and urban residential tower with street-level retail located on a 0.75-acre site in downtown Austin. Camarata Masonry Systems, Ltd. (CMS) was responsible for the supply and instal

Dawn Kornegay
Case Study
Brick Clay Brick Residential
Read More
The Utah Masonry Council's Masonry Education Day
September 2026

The 2026 Masonry Education Day at Interstate Brick in West Jordan is bringing together members of Utah’s architecture, engineering, and construction community for a day focused on education, technical understanding, and workforce development. The event r

Cassie Mejia
Industry News
Read More