Railroad spike steel type free#

Knock injury: it is caused by poor load and unload, transportation, laying and maintenanceĬ. Cracks: No gaps are left between the bottom part of concrete sleeper and the ballasts at the center of the railway line.ī. We shall not lay two types of railway sleepers in a cross-mixed method.ĭamage and Causes of Concrete Railway SleepersĪ. If the junction of wooden sleeper and concrete sleeper lies in the joint of rails, we shall extended five more additional sleepers. Railway lines the concrete railway tie shall not be used on: temporary lines, yard lines the lines easily impacted by frozen damage, mudding and dumping, the lines with instable bases below 200m radius of curved lines.Īt both ends of ballasted or non-ballasted railway bridge, turnout, normal crossing, 15 pieces of wooden sleepers shall be laid there as a transitional section.

Meanwhile, some grooves are designed at the bottom of railway sleeper in order to improve the resistance force between the track bed and the sleeper. In the lower part of the sleeper more steel bars can be arranged with to resist the cracking and damage phenomenon. The shape design is to increase the bearing area of railway tie. The cross section of various types of concrete railway sleepers: A trapezoid shape with a narrow upper and lower width. Continuous laying work can make the gap between the sleepers much smaller, which can keep the track neat and beautiful and track bed clean, and reduce related maintenance workload. The larger bottom area can make per unit area of bottom ballasts bear smaller load, reduce the total subsidence of the rail, prevent uneven subsidence and the increase of the bed friction and improve horizontal stability of the rail (Horizontal resistance doubles than concrete sleeper) and intensity.ī. In recent years, in order to continuously support the rails, wide concrete railway sleepers are laid on the track bed.Ī. Nowadays there are three types of concrete sleepers, which are used together on different types of railway tracks. As different diameters of reinforcement sizes: steel string (High strength steel string) and steel bar (high strength steel bar)Ĭ. As different manufacturing processes: ordinary concrete railway sleeper, pre-stressed concrete railway sleeperī. Anybody who want to buy concrete railway sleepers for sale can focus on the details below.Ĭlassification of Concrete Railway SleeperĪ. Besides, its self-weight makes the replacement get difficult. But it has poor flexibility and is easy to fail because of the crack. Therefore, concrete railway tie has a long service life.

Railroad spike steel type free#

It is free from the effects of climate, decay, worms and fire. Concrete railway sleeper also named concrete railway tie, it can meet the requirements of high speed and large transportation capacity on main railway lines. Characteristics of Concrete Railway SleeperĬoncrete railway sleeper has a wide range of material sources and is good or rail stability.