United States Department of Transportation
i
Liability of concrete performance-based specification for Georgia DOT projects.
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2013-12-01
[PDF-1.82 MB]
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Abstract:Performance-based specifications provide an alternative means of designing concrete to meet
specific performance-related goals. Instead of specifying materials, means, and proportions, as
current prescriptive specifications do, a performance-based specification instead indicates the
functional requirements for concrete in the plastic and hardened states and allows the concrete
producer to design a mixture that meets those requirements. Research conducted in this project
has shown that by focusing on achieving specific performance objectives, it is possible to
produce more durable concrete mixtures with longer service lives and lower costs than mixtures
made under current prescriptive requirements. Based on the results of this research effort,
recommendations are proposed for future introduction of performance-based options into the
GDOT Section 500 – Concrete Structures Standard Specification. It is recommended that
performance criteria for permeability and dimensional stability be included in future GDOT
specifications as optional requirements to supplement the existing prescriptive requirements for
concrete structures.
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