Concrete failure due to air-water jet impingement

Authors
Citation
Aw. Momber, Concrete failure due to air-water jet impingement, J MATER SCI, 35(11), 2000, pp. 2785-2789
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
00222461 → ACNP
Volume
35
Issue
11
Year of publication
2000
Pages
2785 - 2789
Database
ISI
SICI code
0022-2461(200006)35:11<2785:CFDTAJ>2.0.ZU;2-I
Abstract
The paper reports about the generation and testing of an air-entrained wate rjet for concrete demolition applications. Experimental results on concrete samples impinged by conventional waterjets and the air-waterjet show three essential features of the material removal process. First, the depth of cu t is not influenced by the air addition. Second, the entrainment of air sig nificantly affects the material removal rate. Third, there exists an optimu m air flow-rate for a maximum material removal rate. Based on results of me rcury-penetration measurements and acoustic-emission tests, a first phenome nological model (based on the formation of water slugs due to the air sucti on) is developed. (C) 2000 Kluwer Academic Publishers.