Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets

Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets
Author: James K. Cable
Publisher:
Total Pages: 42
Release: 2006
Genre: Pavements
ISBN:

Many cities in Iowa have retained the original brick street surfaces in downtown areas and in older residential areas as the base for modern driving surfaces. The original brick surfaces were not built to handle current and future traffic loadings. In recent years, these surfaces have tended to shift and become uneven, creating problems with safety. Asphaltic concrete overlays have been the typical rehabilitation technique in these situations. This has proven to be successful rehabilitation technique in some cases; in other cases, the combination of movement of the brick and flexibility of the asphalt has proven to accentuate the original problems. Most of the existing literature on rehabilitation of brick streets shows the use of asphaltic concrete. Other rehabilitation methods include reconstruction of the brick surface and strengthening of the surface by placing asphaltic concrete or portland cement concrete, along with sand, underneath the brick layers. To date, little if anything has been done in the area of using portland cement concrete as an overlay of the brick surfaces. This final report documents the planning, construction, and performance of unbonded ultrathin whitetopping rehabilitation of a brick street in Oskaloosa, Iowa, in 2001. It also reports on a similar project in Des Moines that was constructed two years later in 2003.

Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets

Evaluation of Unbonded Ultrathin Whitetopping of Brick Streets
Author: James K. Cable
Publisher:
Total Pages: 8
Release: 2002
Genre: Pavements
ISBN:

Many cities in Iowa have retained the original brick street surfaces in downtown areas and in older residential areas as the base for modern driving surfaces. The original brick surfaces were not built to handle current and future traffic loadings. In recent years these surfaces have tended to shift and become uneven, creating problems with safety. Asphaltic concrete overlays have been the typical rehabilitation technique in these situations. This has proven to be a successful rehabilitation technique in some cases; in other cases the combination of the movement of the brick and the flexibility of the asphalt has proven to accentuate the original problems. Most of the existing literature on rehabilitation of brick streets shows the use of asphaltic concrete. Other rehabilitation methods include reconstruction of the brick surface and strengthening of the surface by placing asphaltic concrete or portland cement concrete, along with sand, underneath the brick layers. To date, little if anything has been done in the area of using portland cement concrete as an overlay of the brick surface. This construction report documents the planning and construction of an unbonded ultrathin whitetopping rehabilitation of a brick street in Oskaloosa, Iowa. A future report will contain an evaluation of the performance of the portland cement concrete overlay over time.

Annual Report

Annual Report
Author: Iowa State University. Department of Civil & Construction Engineering
Publisher:
Total Pages: 116
Release: 2002
Genre: Civil engineering
ISBN:

Annual Report

Annual Report
Author: Iowa. Department of Transportation. Bureau of Research and Technology
Publisher:
Total Pages: 164
Release: 2005
Genre: Intelligent transportation systems
ISBN:

Material and Construction Optimization for Prevention of Premature Pavement Distress in PCC Pavements

Material and Construction Optimization for Prevention of Premature Pavement Distress in PCC Pavements
Author:
Publisher:
Total Pages: 300
Release: 2008
Genre: Pavements, Concrete
ISBN:

In Phase I, the research team contacted each of 16 participating states to gather information about concrete and concrete material tests. A preliminary suite of tests to ensure long-term pavement performance was developed. The tests were selected to provide useful and easy-to-interpret results that can be performed reasonably and routinely in terms of time, expertise, training, and cost. The tests examine concrete pavement properties in five focal areas critical to the long life and durability of concrete pavements: (1) workability, (2) strength development, (3) air system, (4) permeability, and (5) shrinkage. The tests were relevant at three stages in the concrete paving process: mix design, preconstruction verification, and construction quality control. In Phase II, the research team conducted field testing in each participating state to evaluate the preliminary suite of tests and demonstrate the testing technologies and procedures using local materials.

100 Years of Concrete Pavements in Iowa

100 Years of Concrete Pavements in Iowa
Author: Todd D. Hanson
Publisher:
Total Pages: 246
Release: 2009
Genre: Pavements, Concrete
ISBN:

"The objective of this report is to document various changes in specifications, pavement design and equipment for PCC paving from the early 1900s to present. This includes changes that were made to the specification book and supplemental specifications"--Technical report title page.

The First 5 Years, April 2000-March 2005

The First 5 Years, April 2000-March 2005
Author: Iowa State University. Center for Portland Cement Concrete Pavement Technology
Publisher:
Total Pages: 24
Release: 2005
Genre: Pavements, Concrete
ISBN:

This report discusses the accomplishments of the Center for Portland Cement Concrete Pavement Technology (PCC Center) at Iowa State University, which was founded in April 2000. The report discusses the advisory groups that guide the Center, and describes the facilities included in the Center. The two Center facilities are the PCC Pavement and Materials Research Laboratory and the Mobile Concrete Research Lab. The report details the combined test capability of the Center's two labs, and describes the research undertaken at the Center. Also included in the publication are long-term planning efforts and technology transfer studies.