United States Department of Transportation
i
Recommendations for Future Specifications to Ensure Durable Next Generation of Concrete
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2024-02-01
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[PDF-6.03 MB]
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Edition:Final Report (August 2020-February 2024)
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Abstract:Current Georgia Department of Transportation (GDOT) specifications for concrete rely on prescribing the materials and their proportions as well as minimum strength and workability requirements to indirectly control long-term performance. An alternative method, performance-based specifications (PBS), uses direct measures of long-term durability and performance through performance metrics or tests. Research presented in this report demonstrates that performance- based specifications can be implemented in the GDOT standard specifications for concrete in a way that results in more durable concrete and reduces the financial and environmental costs associated with the state’s concrete infrastructure. This report extensively considered Sections 430, 439, and 500 of the GDOT standard specifications which include concrete pavements and structural concrete, as well as preliminary consideration of PBS for special applications in Sections 452, 504, and High-Performance Concrete (Section 500 HPC).
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