FIND A CONTRACTOR BUYER'S GUIDE
BECOME AN INDUSTRY PARTNER
MCAA Logo
MEMBER LOGIN JOIN
NEWS
World of Concrete 2026 Registration Is Open ↗

Thomson receives ASTM International Walter C. Voss Award

Words: Catherine AdkinsonMargaret Thomson, Ph.D., new business development technical director at Lhoist North America in Fort Worth, Texas, has received the Walter C. Voss Award from ASTM International. The Voss Award is presented annually to an engineer or scientist who has made notable contributions in the field of building technology.

Thomson was honored by ASTM for her numerous contributions to the development of standards and specifications for the use of lime in construction applications, especially in the area of repair and maintenance of historic mortars.

A member of ASTM International since 1996, Thomson is vice chairman of Committee C07 on Lime and chairman of Subcommittee C07.06 on Physical Tests. She also serves as a member at large on the executive subcommittee of Committee C12 on Mortars and Grout for Unity Masonry and received the Award of Merit, ASTM’s highest organizational recognition for individual contributions to ASTM standards activities, from the committee in 2011. She is also a member of ASTM Committees C01 on Cement, C15 on Manufactured Masonry Units and E60 on Sustainability.


Thomson joined Lhoist North America (formerly Chemical Lime Co.) as technical manager of Chemstar Type S Hydrated Lime in 1996. She was promoted to technical director, Western Sales Division, in 2009, and received her current title in 2011. Before Lhoist, she was a research scientist focusing on performance of lime-based mortar for masonry at the National Research Council Canada’s Institute for Research in Construction.

A graduate of University of Western Ontario, London, Ontario, where she received a B.Sc. with honors in geology and a Ph.D. in geology, Thomson is also a member of the Masonry Society.
 0
From Day One to Long-Term Success: Onboarding Strategies for Contractors
January 2026

The construction industry is facing one of its toughest challenges in decades. Companies are struggling to find enough skilled workers while competing to keep the ones they have. At the same time, projects are becoming more complex, deadlines are tighter,

Matt Dibara
Business Management
Read More
Finding the Right PPE for Your Work
January 2026

When it comes to PPE, one thing’s for sure: safety isn’t one size fits all. The work you’re doing, where you’re doing it, and even what time of year it is, can all make a big difference in what gear actually works. Price, comfort, and job performance all

Greg Brown
Safety Library
Read More
Back Injuries: The Real Cost and How to Prevent Them
January 2026

The mention of back injuries makes mason contractors cringe, and for good reason. Masons lift heavy objects every day, all day long. When a person sustains a back injury, it is serious. It affects every part of their life, from their ability to perform wo

Zach Everett
Safety Library
Read More
Detailing for Durability: The 2026 Guide to High-Performance Stone Veneer Transitions
January 2026

Some of the most expensive failures involving manufactured stone veneer installations don’t come from the stone at all, but rather from the material transitions and flashing around it. Transitions are weak points in the overall cladding where water can fi

Jeff Tew
Technical Talks
Read More