Global ETD Search
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Showing 1 to 2 of 2 for “"rail seat area"”.
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Freeze-thaw environment of precast concrete crossties and effect of vibration on fresh materials
… of years. One such outdoor environment is in railroad lines where timber ties (alternatively known as crossties or sleepers) are being replaced with high performance concrete crossties. Additionally, concrete crossties are being installed in burgeoning high speed rail networks across the …
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Evaluation of the residual prestress force in aged railway concrete sleepers considered for reuse
The increasing demand for railway transport in South Africa has led to the expansion and upgrade of the existing track infrastructure in recent years. Given the high costs associated with new development or refurbishment of existing infrastructure, asset owners and managers are faced with the …