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Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

This report is an archived publication and may contain dated technical, contact, and link information
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


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:


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.


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