Téléchargement | - Voir la version finale : Comparison of in-situ strengths and quality tests of concrete (PDF, 958 Kio)
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DOI | Trouver le DOI : https://doi.org/10.4224/20358593 |
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Auteur | Rechercher : Lewandowski, R.; Rechercher : National Research Council of Canada. Division of Building Research |
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Format | Texte, Rapport technique |
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Description physique | 15 p. |
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Sujet | Béton; essai en place; résistance à 28 jours (béton); béton (matériau); béton (technique) |
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Résumé | Investigations were carried out on structures and components at more than 20 construction sites and storage yards of precasting factories meeting normal standard requirements with regard to accuracy in production and placement of concrete. It resulted therefrom that in most of the structures investigated the structural strengths after 28 days attained on an average the theoretical concrete quality; fractile values were below by about 20 to 30%. It has been explained that the specification required in DIN 1045 E with regard to structural strengths can, with some accuracy, be maintained without any difficulty, but that it should suitably be completed by stating a fractile. On the basis of the test results it was recommended to modify the specified strength of higher concrete qualities stated in DIN 1045 E as a constant value beta [R] = 0.7 . beta W[28]. |
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Date de publication | 1976 |
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Maison d’édition | National Research Council of Canada |
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Série | |
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Langue | anglais |
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Publications évaluées par des pairs | Non |
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Numéro du CNRC | NRC-IRC-405 |
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Numéro NPARC | 20358593 |
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Exporter la notice | Exporter en format RIS |
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Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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Identificateur de l’enregistrement | e58b4014-8b39-42af-948b-c9065af887f7 |
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Enregistrement créé | 2012-07-20 |
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Enregistrement modifié | 2023-01-19 |
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