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Showing 1 to 5 of 5 for “"Concrete Sleeper"”.
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Condition assessment methods for prestressed concrete railway sleepers: feasibility for South African applications
Concrete sleepers are a key component of railway systems, with estimates showing between 20 million to 35 million currently installed within the South African railway network. The condition assessment of concrete sleepers in South Africa poses a challenge for two main reasons: the scale at which …
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Condition assessment methods for prestressed concrete railway sleepers: feasibility for South African applications
Concrete sleepers are a key component of railway systems, with estimates showing between 20 million to 35 million currently installed within the South African railway network. The condition assessment of concrete sleepers in South Africa poses a challenge for two main reasons: the scale at which …
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Evaluation of the residual prestress force in aged railway concrete sleepers considered for reuse
… a conventional railway track is the prestressed concrete sleeper. In South Africa, these sleepers are designed to last for 40 years, and their replacement plan is aligned with their design life. Given the desire to extend the useful life of sleepers, aged concrete sleepers are often removed from …
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Flexural behavior of prestressed concrete monoblock crossties
As the use of concrete crossties increases for heavy-haul freight railroad lines in North America, it is becoming more critical to improve the understanding of their flexural behavior. This improved understanding can help to optimize current design and maintenance practices for concrete crossties, …
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The mechanics of abrasion on concrete crosstie rail seats
… as one of the primary factors limiting concrete crosstie service life, particularly in heavy-haul freight operations. RSD refers to the degradation of the material at the contact interface between the concrete crosstie rail seat and the rail pad assembly that protects the bearing area of …