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Cavitation erosion resistance of sewer pipe materials

Fairfield, Charlie A. (2015). Cavitation erosion resistance of sewer pipe materials. Institution of Civil Engineers. Proceedings. Construction Materials,168(2):77-91.

Document type: Journal Article
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IRMA ID 84377429xPUB35
Title Cavitation erosion resistance of sewer pipe materials
Author Fairfield, Charlie A.
Journal Name Institution of Civil Engineers. Proceedings. Construction Materials
Publication Date 2015
Volume Number 168
Issue Number 2
ISSN 1747-650X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-84925355125
Start Page 77
End Page 91
Total Pages 15
Place of Publication United Kingdom
Publisher I C E Publishing
Field of Research ENGINEERING
HERDC Category C1 - Journal Article (DIISR)
Abstract A cavitating high-pressure water-jet provided the means by which a range of materials (plastics, clay and concrete) were eroded. The measured erosion resistance was a proxy for an initially unknown combination of other properties: strength, fracture toughness, impact resistance, hardness, surface roughness, and limiting service temperature. To ascertain the cause of damage to sewers during high-pressure water-jetting, information about which material properties contributed to the measured erosion resistance under a standard high-pressure water-jetting test were found. The experimental work, and published literature, provided a database of physico-mechanical, physico-chemical, thermal and tribological material properties each of which in turn were correlated with the measured jetting resistance. The properties best correlated with the jetting resistance were: maximum service temperature (R2  =  0ṡ93), elastic modulus (R2  =  0ṡ90), surface roughness (R2  =  0ṡ89), density (R2  =  0ṡ87), and thermal conductivity (R2  =  0ṡ87). The correlation coefficient between jetting resistance and impact resistance (R2  =  0ṡ56) lay just outside the top 10, suggesting that this was not an impact problem but a more complex combination of strength, roughness, and heat dissipation despite actual failures ultimately resulting from fracture (for which toughness was nevertheless also poorly correlated (R2  =  −0ṡ38)). Traditional mechanical wear, abrasion, and erosion resistance parameters (Taber abrasion (R2  =  −0ṡ24), limiting pressure-velocity (R2  =  −0ṡ57), and wear index (R2  =  −0ṡ23)) failed to correlate with the jetting resistance.
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Created: Tue, 26 Jul 2016, 12:57:50 CST