Tag Archives: CP Tech Center

ACPA Presents at Concrete Pavement Workshop

In support of the Cement Association of Canada, an ACPA affiliate, Leif Wathne participated in the 2018 BC Concrete Pavements Workshop in Burnaby, BC, last week. He spoke about competition, asset management, and on concrete overlays.  In the concrete overlay presentation, Wathne cited several resources, including the CP Tech Center’s “Guide to Overlays,”  which is just one of a large collection of manuals & guidelines, reports, tech briefs and other overlay resources the Center offers. 

Workshop participants included industry and agency officials, Wathne says, noting that Omar Swei, Assistant Professor at the University of British Columbia, presented on improving infrastructure design and maintenance. LCCA and project examples from across Western Canada also were focal points of the workshop.

Wathne says, “An ongoing dialogue with the concrete and cement industry in BC can help agencies better understand what steps to take to start benefitting from inter-industry competition.”

ACPA Board Affirms Association Directions

The ACPA Board took several important actions during its third quarter meeting in Rosemont on October 11.  The board affirmed its support of the advancement of a new promotion plan developed jointly with Portland Cement Association. The plan is currently being refined and will be discussed with the Portland Cement Association Board later this month.

The ACPA Board also provisionally accepted a 2019 draft budget plan prepared by the Budget & Finance Committee, with the understanding that outstanding questions will be clarified between now and the annual meeting on Nov. 27-29.  Adjustments may be made as needed during the interim period, with final acceptance anticipated at the next board of directors meeting Nov. 29.  The Association anticipates a budget of $3.88 million to support pavement promotion.

In addition, directors affirmed the Association’s support of the CP Tech Center’s efforts on the performance engineered mixtures (PEM) research/development program and considered a new proposal from the Aggregate & Ready Mix Association of Minnesota to formalize a chapter affiliation agreement, supporting pavement promotion in the state.

Adam joins CP Tech Center and PCC Lab

John Adam, has joined the staff of the CP Tech Center as program manager. His new role has him managing the portland cement concrete laboratory in Iowa State University’s Town Engineering building. He also will participate in other programs at the CP Tech Center. 

Adam previously was Highway Division Director and Chief Engineer for the Iowa DOT in Ames. Prior to that, he was the DOT’s Statewide Operations Bureau Director. He also spent several years as Senior VP at Knight Engineering.

During his DOT tenure, he served on various AASHTO committees and subcommittees, including the Standing Committee on Highways. He brings to the CP Tech Center more than 30 years of experience in the design and delivery of transportation improvement projects. 

CP Tech Center Releases RCA Publication

“Using Recycled Concrete Aggregate in Pavement Base Products,” is the latest MAP* Brief released by the CP Tech Center. 

The introduction describes how RCA is used widely as a base material, in part because its performance can meet or exceed that of natural aggregate. This 8-page document describes construction considerations, qualification testing, and pavement design considerations for both unbound and bound (or stabilized) RCA base.  It also highlights environmental factors to look for, as well as well as related environmental benefits.

Written by Mark Snyder, Pavement Engineering and Research Consultants, LLC,** this MAP Brief also includes covers several example problems that provide some interesting and useful details, valuable information to agencies, consultants, and contractors working with RCA as a viable concrete pavement base. 

Click here to see/download the MAP Brief.

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* Moving Advancements into Practice, and this series is designed to capture best practices and innovative technology for concrete pavements.
** ACPA Member.

 

Bob Steffes to Retire

The CP Tech Center reports that Robert (Bob) Steffes will retire as Manager of the Portland Cement Concrete Research Lab (PCC Lab) at the end of July.   During the past 15 years, he has guided ISU students and faculty through thousands of concrete tests, exams, and procedures at the PCC Lab. Steffes was an integral player in many concrete projects involving the CP Tech Center.

During his years in the PCC Lab, research activities have increased approximately ten-fold, ICPA reports.  Bob said he’ll remember most, “The satisfaction from teaching and helping students in research operations and seeing them move forward with some of my mentoring. The many invitations I received from students I worked with, to attend their research defense presentations, for graduation. The challenging demands to be creative, and design and build unique equipment for multiple, unique research needs.”

Following retirement, he said he plans a move to Olathe, KS, to spend time with kids and grandkids.

ACPA joins with the CP Tech Center staff thanks Bob for his years of stellar service to the transportation community. For contact information, as well as other information about Bob, click here.  

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