Performance Comparison of Diamond-Enhanced and Tungsten Carbide Teeth for Road Milling

When deteriorating asphalt roads are reconstructed or downgraded to gravel roads, the old pavement is ground into reclaimed asphalt pavement by machines conventionally fitted with tungsten carbide teeth for grinding. Tungsten carbide milling teeth must be changed frequently because they sometimes la...

Full description

Saved in:
Bibliographic Details
Published inTransportation research record Vol. 2282; no. 1; pp. 45 - 48
Main Authors Dixon, Paul A., Crockett, Jeffrey, Jepson, Jeffrey
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.01.2012
Subjects
Asphalt
Comminution
Diamonds
Milling (machining)
Roads
Teeth
Tungsten carbide
Vibration
Online AccessGet full text

Cover

More Information
Summary:When deteriorating asphalt roads are reconstructed or downgraded to gravel roads, the old pavement is ground into reclaimed asphalt pavement by machines conventionally fitted with tungsten carbide teeth for grinding. Tungsten carbide milling teeth must be changed frequently because they sometimes last only 1 or 2 days. Diamond-enhanced milling teeth have been developed as a more durable alternative. The durability of tungsten carbide milling teeth was compared with that of diamond-enhanced milling teeth, and the effect of tooth type on fuel efficiency and machine vibrations was measured. In the tests conducted, on average, the diamond-enhanced milling teeth lasted 40 times longer, improved fuel consumption by 14.3% and 29.9%, and reduced the maximum vibration in a milling machine 79% over tungsten carbide milling teeth.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0361-1981
2169-4052
DOI:10.3141/2282-05