LEADCAP Debuts on
Iowa City’s Capital Street Project

A new Warm-mix asphalt additive was introduced to America on Capital St. in Iowa
City on August 16. LEADCAP, a wax additive produced by Korean company
Kumho Petrochemical, was used to place approximately 300 tons of Warm Mix
Asphalt (WMA) by APAI member, L.L. Pelling Co., Inc. of North Liberty, IA.

Over 30 attendees watched the L.L. Pelling Company paving crew place the 1.5"
surface course. The mix was plant produced at 260°F. “It looks like asphalt” said
L.L. Pelling Co. Paving Foreman, Jim Ozello. “We appreciate the City of Iowa City
giving us the opportunity to introduce warm-mix asphalt to this “green” city,” said L.L.
Pelling Company, Inc. Vice President Brett Finnegan, “the use of WMA saves burner
fuel, reduces CO2 emissions, will lengthen the longevity of our pavements, and most
importantly, will provide a better work environment for our employees.”

Following the site visit, Dr. David Lee, Professor – Civil and Environmental
Engineering at the University of Iowa, presented his findings on LEADCAP and gave
a tour of the University of Iowa Asphalt Lab. A special thank you to the city of Iowa City,
the University of Iowa, and the crews of L.L. Pelling Company, for allowing the attendees
to see this first of a kind project in Iowa City being constructed.