Service Life of Underground Concrete Structuresby James R. Clifton, Natl Inst of Standards and, Technology, United States,
Abstract: The service life of underground concrete depends on both the physicochemical properties of the concrete materials and the properties of the in-service environment. The major factors controlling the service life of underground concrete include the rate of ingress and movement of moisture in concrete, and the rate of reactions between the concrete and constituents of the groundwater. Methods used for predicting service lives of concrete include i) estimates made based on experience, ii) comparison of performance with similar materials of known service lives, iii) accelerated testing, iv) reliability concepts, v) and mathematical modeling based on understanding the chemistry and physics of deterioration processes.
Subject Headings: Concrete | Underground structures | Material properties | Service life | Material tests | Concrete structures | Structural reliability | Materials processing
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