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Publication Number: FHWA-RD-02-084
Date: May 2006

Highway Concrete Technology Development and Testing Volume IIi: Field Evaluation of SHRP C-205 Test Sites (High Performance Concrete)

Chapter 4. Conclusions and Recommendations

CONCLUSIONS

This study was intended to investigate the durability and integrity of HES concrete patches built in Arkansas, Illinois, Nebraska, New York, and North Carolina. Strength, modulus, resistance to chloride ion penetration, and visual condition of the patches were used as durability indicators. The results and recommendations presented in this report are based on a comprehensive study of the test data using statistical metHods and engineering principles. Chapter 3 discussed in detail the effects of climate and material properties on the HES concrete durability. The following key observations were made from the data analysis:

RECOMMENDATIONS

The study was successful to a large extent in that it demonstrated that HES concrete patches, when built using a variety of metHods and materials and exposed to different climatic conditions, can perform adequately in the field with no extraordinary signs of durability-related distresses. However, since the study only spanned approximately 7 years into the life of the patches, additional data will be necessary to study in greater detail the effects of climate, construction, and site conditions that influence HES concrete durability.

It is therefore recommended that more data be collected as the patches age, and that these data be analyzed to make further observations of the long-term durability of these materials.

 


The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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