how do you cut old railway sleepers

Reclaimed Timber and Cutting Techniques

Reclaimed timber, particularly that sourced from railway infrastructure, presents unique challenges in processing due to its density, potential for embedded metal, and often weathered condition. Safe and effective cutting requires specialized tools and techniques.

Material Properties of Treated Timber

Railway sleepers are typically constructed from pressure-treated timber. This treatment process involves impregnating the wood with preservatives, often creosote or other chemical compounds, to enhance durability and resist decay. These preservatives can be hazardous if inhaled or ingested and may require specialized disposal procedures.

Safety Precautions

Cutting treated timber necessitates appropriate personal protective equipment (PPE). This includes respiratory protection (e.g., a respirator with appropriate filters), eye protection (safety glasses or a face shield), and gloves designed to protect against splinters and chemical exposure. Proper ventilation is also crucial to minimize exposure to airborne particles and fumes.

Cutting Equipment and Methods

  • Circular Saw with Carbide-Tipped Blade: A powerful circular saw with a high-quality carbide-tipped blade is ideal for cutting through dense, treated timber. The blade's durability is essential to prevent premature wear and tear. Frequent blade changes are advisable to maintain sharpness and cutting efficiency.
  • Reciprocating Saw (with appropriate blade): A reciprocating saw, often referred to as a "Sawzall," with a suitable metal-cutting or wood-cutting blade can also be used, especially for curved cuts or working in confined spaces. However, it may require more effort and time compared to a circular saw.
  • Angle Grinder with Abrasive Cutting Disc: For particularly dense or heavily weathered timber, an angle grinder with a diamond or abrasive cutting disc may be necessary. This approach generates significant sparks and dust, demanding additional safety precautions.

Waste Disposal Considerations

Proper disposal of cutting debris from treated timber is critical. Local regulations regarding the disposal of treated wood waste should be adhered to strictly. Improper disposal can lead to environmental contamination.

Alternative Cutting Techniques

In some circumstances, non-destructive methods may be preferable. For instance, scoring and splitting techniques, while requiring more physical effort, can minimize dust and noise generation.