CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Two-Lift Concrete Pavements to Meet Public Needs (Proj. 8)

Researcher(s)

Principal investigators:

Co-principal investigator:

Student researcher:

Project status

Completed

Start date: 10/01/03
End date: 09/30/04

Publications

Report: Two-Lift Concrete Pavements to Meet Public Needs (Proj. 8) (286 kb pdf) September 2004

Tech transfer summary: Reassessing Two-Lift Paving ( pdf) Sep 2004

Sponsor(s)/partner(s)

Sponsor(s): Federal Highway Administration

About the research

Abstract: The report reviews the past work in the United States and internationally in the development of two-lift pavements. It points out the strengths and limitations in the construction of such portland cement concrete pavements. Certain cost, mix design, and construction problems are inhibiting the growth of this product. Changes in the availability of aggregates, knowledge of materials and new construction equipment, and the desire for specific surfaces to meet noise, durability, and safety are prompting the need to reconsider this type of construction.