Autor: |
Hubert K. Hilsdorf, B. Hillemeier |
Rok vydání: |
1977 |
Předmět: |
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Zdroj: |
Cement and Concrete Research. 7:523-535 |
ISSN: |
0008-8846 |
DOI: |
10.1016/0008-8846(77)90114-4 |
Popis: |
An experimental and analytical investigation was conducted to determine fracture mechanics characteristics of hardened cement paste, aggregates and aggregate-cement paste interfaces. For this the fracture toughness KIc was determined on wedge loaded CT-specimens. It was found that hardened cement paste, aggregates and interfaces exhibit unique KIc values which are independent of the initial crack length. In additional test series the ductility of various model concretes tested in flexure was determined. The ductility depends primarily on the fracture toughness toughness of the aggregate-hardened cement paste interfaces and is less affected by the fracture toughness of the hardened cement paste. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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