MARCH 2018
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Two New Tech Briefs in the Concrete Pavement Recycling Series

Protecting Water Quality through Planning and Design Considerations (Tech Brief #3) is a recently completed Tech Brief from the National CP Tech Center. Author Tara Cavalline of the University of North Carolina at Charlotte summarizes the potential water quality impacts of concrete recycling, and offers a look at currently available mitigation strategies that can be employed during the planning and design of a project. A flowchart shows recommended actions for dealing with concrete that is being reused from different projects. A section on preventing drainage issues caused by sediments and solid precipitate in recycled concrete aggregates (RCA) presents several workable solutions.

Protecting the Environment during Construction (Tech Brief #4) is the latest Tech Brief in the Concrete Pavement Recycling series. Tara Cavalline of the University of North Carolina at Charlotte presents strategies for minimizing negative construction impacts from use of RCA. The Tech Brief offers multiple suggestions for dealing with air and water quality issues, noise concerns, and waste management problems that may arise when using RCA. Employing judicious planning and design considerations, use of conventional stormwater best management practices (BMPs), and accessing readily implementable construction controls are potential answers to mitigate potential problems.


Meet the CP Tech Center board members,  first in a series

Joseph Bush, Chief Operating Officer of McCarthy   Improvement Company, Inc., is the new Chairman of the National CP Tech Executive Board.
He has previous executive experience on concrete group boards, having served as the 2012 Chairman of the Board of Directors of the American Concrete Pavement Association. In that role, he emphasized the importance of securing funding, building membership, educating customers, and reinforcing positive messages about the quality and value of concrete pavements.
Bush received a B.S. in civil engineering from the University of Notre Dame and an MBA from the University of Iowa’s Henry B.Tippie College of Business. He joined McCarthy Improvement Company, Inc. in 1983, which makes him a 34-year veteran of the company. He was named president in 1993, and remained in that position until 2017, when he began transitioning to retirement. He is currently working to expand McCarthy’s markets in the Sunbelt.
McCarthy Improvement Company is a multifaceted highway and heavy construction company with Midwest headquarters in Davenport, Iowa. The company conducts business in the Midwest and Southeast and is involved in concrete and asphalt paving, earth moving and underground utility work, as well as bridge building and repair work. It offers services in construction in governmental, airfield, and commercial construction.
McCarthy Fun Fact: At the early age of 17, the company’s founder, Patrick F. McCarthy, emigrated from Ireland to Iowa and started McCarthy in 1897. (Patrick McCarthy was Joe Bush’s great-grandfather.)
Please forward this newsletter to your members as appropriate.
The goal of Resources is to let our partners know about events, new training opportunities, publications, and other products provided by the National Concrete Pavement Technology Center (CP Tech Center) at Iowa State University. Resources is distributed to state concrete paving associations, the National Concrete Consortium, FHWA, and other organizations.

Editor: Steve Jones,, 515-294-3479;         
CP Tech Center | 2711 S. Loop Drive | Suite 4700 | Ames | IA | 50010-8664
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