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A platform for research: civil engineering, architecture and urbanism
Although the investigation has only begun, the writer believes that the importance of the subject makes it advisable to state the results (as far as obtained), of experiments made under his direction, to determine the behavior of certain Portland cement mixtures when subjected to repeated loads of a less intensity than would produce failure when once applied. Certain observed peculiarities in tests of concretes led to the conclusion that brittle engineering materials (such as stone, brick, mortars, concretes, etc.), of which cement mixtures are a fair type, possess the property of a progressive failure or “gradual fracture” which finally becomes complete under the repetition of a load well within the ultimate strength of the material. The analogy to the similar property of steel, proved by Bauschinger and Wohler about forty years ago, is evident.
Although the investigation has only begun, the writer believes that the importance of the subject makes it advisable to state the results (as far as obtained), of experiments made under his direction, to determine the behavior of certain Portland cement mixtures when subjected to repeated loads of a less intensity than would produce failure when once applied. Certain observed peculiarities in tests of concretes led to the conclusion that brittle engineering materials (such as stone, brick, mortars, concretes, etc.), of which cement mixtures are a fair type, possess the property of a progressive failure or “gradual fracture” which finally becomes complete under the repetition of a load well within the ultimate strength of the material. The analogy to the similar property of steel, proved by Bauschinger and Wohler about forty years ago, is evident.
The Fatigue of Cement Products
Van Ornum, J. L. (author)
Transactions of the American Society of Civil Engineers ; 51 ; 443-445
2021-01-01
31903-01-01 pages
Article (Journal)
Electronic Resource
Unknown
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