Air entrainment and the fabrication of concrete railroad ties

Mohammed T. Albahttiti, Ahmad A. Ghadban, Kyle A. Riding, David Lange

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Handling and vibration can affect the air content of prestressed concrete railroad ties. The amount and variation in vibration experienced in concrete railroad ties were investigated to determine the concrete fabrication conditions typically used. Two methods of fabrication were investigated by measuring the concrete properties and vibration exposure during placement at two concrete tie manufacturing plants. In addition to measuring the vibration distribution in concrete railroad ties, a pair of ties were selected for hardened-air void analyses to determine any variation of air content in relation to the height of the ties. The vibration results indicate the existence of constructive and destructive wave-interferences in tie cavities. These interferences may contribute to large variations in the vibration acceleration throughout the length, depth, and width of concrete crossties during fabrication. This may account for the air-loss across the depth of the ties.

Original languageEnglish (US)
Title of host publication2015 Joint Rail Conference, JRC 2015
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791856451
DOIs
StatePublished - 2015
EventASME/ASCE/IEEE 2015 Joint Rail Conference, JRC 2015 - San Jose, United States
Duration: Mar 23 2015Mar 26 2015

Publication series

Name2015 Joint Rail Conference, JRC 2015

Other

OtherASME/ASCE/IEEE 2015 Joint Rail Conference, JRC 2015
Country/TerritoryUnited States
CitySan Jose
Period3/23/153/26/15

ASJC Scopus subject areas

  • Transportation
  • Mechanical Engineering

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