Mehrdad Mahoutian is co-founder and Chief Technology
Officer at Carbicrete, Montreal, QC, Canada. He is a professional
engineer with 13 years of experience in concrete technology,
research and development, and consulting. He is a member of
ACI Committee 242, Alternative Cements. He received his BSc
from the University of Tehran, Iran; MSc in structural engineering
from Sharif University of Technology, Tehran, Iran; MSc in civil
engineering from the University of Alberta, Edmonton, AB,
Canada; and PhD from McGill University, Montreal, QC, Canada.
Chris Stern is a mechanical engineer with 20 years’ experience
in sales and business development in pharmaceutical
packaging equipment, automotive machining, and solar power
manufacturing and deployment. He was a co-founder at Pure
Energies, which grew into a firm of 200 employees. After Pure
was acquired by NRG Energy in 2014, he started a consulting
business focusing on tech start-ups and strategy development in
cleantech. In 2016, he co-founded Carbicrete.
Yixin Shao, FACI, is a Professor in the Department of Civil
Engineering and Applied Mechanics at McGill University. His
research interests include carbonation curing of concrete,
carbonation activation of steel slag, utilization of wastes,
environmentally friendly building materials, and durability. He
is a member of ACI Committees 130, Sustainability of Concrete;
236, Material Science of Concrete; 544, Fiber Reinforced
Concrete; and 549, Thin Reinforced Cementitious Products and
Ferrocement. He received his PhD from Northwestern University,
www.concreteinternational.com | Ci | JANUARY 2020 51
“A Review of the Use of Recycled Solid Waste
Materials in Asphalt Pavements,” Resources,
Conservation and Recycling, V. 52, No. 1,
Nov. 2007, pp. 58-73.
10. Das, B.; Prakash, S.; Reddy, P.S.R.;
and Misra, V.N., “An Overview of Utilization
of Slag and Sludge from Steel Industries,”
Resources, Conservation and Recycling, V. 50,
No. 1, Mar. 2007, pp. 40-57.
11. Roy, S.; Miura, T.; Nakamura H.; and
Yamamoto, Y., “Investigation on Applicability
of Spherical Shaped EAF Slag Fine Aggregate in
Pavement Concrete—Fundamental and Durability
Properties,” Construction and Building
Materials, V. 192, Dec. 2018, pp. 555-568.
12. Netinger, I.; Bjegović, D.; and Vrhovac,
G., “Utilization of Steel Slag as Aggregate in
Concrete,” Materials and Structures, V. 44,
No. 9, Nov. 2011, pp. 1565-1575.
13. ASTM C90-16a, “Standard Specification
for Loadbearing Concrete Masonry Units,”
ASTM International, West Conshohocken, PA,
2016, 5 pp.
14. ASTM E119-19, “Standard Test Methods
for Fire Tests of Building Construction
and Materials,” ASTM International, West
Conshohocken, PA, 2019, 37 pp.
Selected for reader interest by the editors.