Classification of Wooden Sleepers in India
The wooden sleeper stands as the predominant choice for railway sleepers in India, offering a plethora of advantageous qualities.
In India, wooden sleepers typically boast a service life of around 15 years, which represents a notable durability. However, the environmental conditions prevalent in India, such as heavy rainfall and high humidity, contribute to a shorter lifespan for these sleepers.
Wooden sleepers in India are categorized into two main types: durable and non-durable. Durable sleepers, sourced from timber varieties like teak, sal, nahor, rosewood, and others, require no additional treatment and can be directly installed onto the track. Conversely, non-durable sleepers, crafted from woods such as chir, deodar, kail, gunjan, and jamun, necessitate pre-treatment before being suitable for use on the track.
Furthermore, wooden sleepers can be distinguished as hard wood or soft wood sleepers, a classification observed in both Western countries and China. Hard wood sleepers typically originate from trees with broad leaves, while soft wood sleepers are sourced from trees with elongated leaves. This differentiation aids in understanding the specific attributes and applications of each type of sleeper.
Overall, wooden sleepers remain the preferred choice for railway infrastructure in India, offering a blend of durability, versatility, and cost-effectiveness, despite challenges posed by environmental factors.