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According to statistics, during the peak period of wooden sleeper use, approximately Millions of them were laid and most were pine. Can you imagine how much forest this would destroy?
With the reduction of forest resources and the enhancement of people's environmental awareness, and of course due to the development of science and technology, at the beginning of the last century, some countries began to produce steel sleepers and reinforced concrete sleepers to replace sleepers. However, because steel sleepers consume too much metal, are expensive to make, and are bulky, they have not been popularized and only a few countries such as Germany are still using them. Since the 1990s, many countries have begun to produce reinforced concrete sleepers.
Reinforced concrete sleepers
have long service life, high stability, small maintenance workload, and the damage rate and scrap rate are much lower than those of wooden sleepers. On seamless lines, the stability of reinforced concrete sleepers is on average ~% higher than that of wooden sleepers. Therefore, it is especially suitable for high-speed passenger lines. For example, Japan's Shinkansen and Russia's high-speed trunk lines are all laid with it.
Of course, reinforced concrete sleepers also have disadvantages, especially the fact that they are much heavier than wooden sleepers. For example,
Mining cement sleepers
Mining cement sleepers
The British reinforced concrete sleepers weigh up to kilograms each, the American ones weigh up to kilograms, and the lighter ones in Germany also weigh kilograms.
Therefore, it is not suitable to use it in areas with unstable roadbeds and newly filled roadbeds that are subject to frost heaving in winter. It is generally not allowed to be used in areas where large amounts of coal and ore are transported and where the line track bed is seriously dirty. It is best not to use it. .
The United States, which uses the most wooden sleepers, now uses a plastic sleeper. This kind of plastic sleeper made of recycled polyethylene is more than three times more corrosion-resistant than wooden sleepers, and it is easier to roughen its surface during processing, so it will not slide when installed on the roadbed. The third advantage is that it is easy to install and can directly use the same equipment and fasteners as wooden sleepers. Of course, the cost of plastic sleepers is higher than that of wooden sleepers. Once the cost comes down, they will be widely used.
Sleepers have different lengths due to different application ranges. In our country, the length of ordinary sleepers is the turnout sleepers used for switches and the bridge sleepers used on steel bridges. There are various lengths. The number of sleepers laid per kilometer of line is determined based on operating conditions such as railway traffic volume and driving speed. Generally speaking, it is between ~ root. It goes without saying that the greater the number of sleepers, the stronger the track.
Tai'an Dingxin provides high-quality cement sleepers in various models and specifications. Customers are welcome to come and purchase
Please note
This is the only enterprise that produces cement sleepers in Tai'an, Shandong
Purchasing Contact Person Liu Zhenzhen
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Address No. Lingshan Street, Tai'an City, Shandong Province
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