The effects of age and water/cement ratio upon the relation between ultrasonic pulse velocity and compressive strength of concrete

Autor:	M. F. Kaplan
Rok vydání:	1959
Předmět:	Cement Materials science Water–cement ratio Aggregate (composite) Compressive strength Ultrasonic pulse velocity Pulse (signal processing) General Materials Science Geotechnical engineering Building and Construction Civil and Structural Engineering
Zdroj:	Magazine of Concrete Research. 11:85-92
ISSN:	1751-763X 0024-9831
DOI:	10.1680/macr.1959.11.32.85
Popis:	Summary Experiments have been made on concretes with varying aggregate/cement and water/cement ratios, with the main object of ascertaining the effects of changes in age and water/cement ratio upon the relation between ultrasonic pulse velocity and the compressive strength of concrete. It was found that the ratio of changes in pulse velocity and compressive strength due to a change in water/cement ratio is not generally the same as that due to a change in age. Because of this, the relation between pulse velocity and compressive strength cannot be expected to be independent of age and water/cement ratio. It appears, however, that, for compressive strengths up to about 4,000 lb/in2, the relation may for practical purposes be regarded as being so. For concrete of the same aggregate)cement ratio, it was found that low pulse velocity at an early age predicts low strength at later ages.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d52d3fdc6ad22338c9a4d7f307b86bb https://doi.org/10.1680/macr.1959.11.32.85 Zobrazit plný text záznamu