China's highways are often renovated, and Japan's is as good as new all year round, which is not a technical problem
If you want to prosper, you must first build roads"Since ancient times, China has paid attention to road construction, and as early as the Qin Dynasty, large-scale road construction projects began to promote economic development.
So far, China is still firm in the determination and intensity of road construction. In daily life, we often see familiar roads being repaired with asphalt by workers, which is our country's investment and attention to road construction.
Some people wonder why the roads in our country are repaired every year while the roads in neighboring Japan are kept in brand new condition, even though the roads are all asphalt.
With the continuous renovation and rectification of China's roads, there are discussions on the Internet about "China's road construction is not as good as Japan". In this issue of the Knowledge Bureau, let's take a look at this issue.
Compared with China's road construction, which uses a mixture of asphalt and cement roads, Japan's road construction is all asphalt. The black pavement and white road signs complement each other, giving it a neat and new look.
According to the data of the relevant departments in Japan, the area of asphalt roads in Japan has accounted for 98% of the total road area in the country9%。
Why is asphalt pavement used on such a large scale in Japan? Before answering this question, let's learn a little about the history of Japan in the field of road construction. In 1878, Japan launched a domestic road construction movement, and in the years that followed, Japan not only promoted the asphalt pavement policy nationwide, but also implemented the Tokyo Road Improvement Project.
However, due to technical limitations at the time, most of the asphalt used in Japan was mainly from domestically produced natural asphalt, which was produced in small quantities and the quality was difficult to guarantee.
In order to keep up with the times, in 1950, the Japan Road Association introduced the Asphalt Association of the United States paved road codes into the country. After discussions among various ministries, Japan released a simplified version of the "Asphalt Pavement Compendium".
Compared with cement roads, asphalt pavements have stronger permeability and toughness. Since Japan is a country with a typical monsoon climate, the geographical location of the surrounding sea makes the air relatively humid, which requires higher water absorption of the road surface.
Therefore, after the introduction of asphalt roads in Japan, they quickly adapted to the local environment and were widely accepted by the Japanese people.
Exploring China's Road Construction: From the Hujia Expressway to the Development of Asphalt Pavement With the dominance of China's leading departments, China built the first real expressway in 1988 - the Hujia Expressway.
To ensure its longevity, asphalt pavement is used throughout the road. However, due to technological and production constraints, Japan was facing a similar dilemma as Japan at that time.
The domestic asphalt production speed cannot keep up, the quality cannot meet the requirements, and the cost of laying asphalt pavement is relatively high. As a result, the process of road surface renovation has been temporarily stalled.
However, China's reform and opening up in 1978 has led to a rapid improvement in the economic level, and the circulation of goods is also facing new challenges. In this context, China's road construction needs to find new solutions to adapt to the new economic environment and traffic needs.
In economic development, roads come first, but building roads requires a lot of investment, and the problem comes down to money. In 1994, asphalt pavement paved all the way up, from 600 yuan to 1200 yuan, which is not only the demand for the rapid development of China's economy, but also the embodiment of China's financial pressure.
But without asphalt pavement, we can't stop the economy**, because we know that roads are the foundation of economic development.
If you want to repair the pavement on a large scale, the first problem to solve is to find an alternative to the asphalt pavement. Among the many options, cement concrete pavement stands out as the first choice.
Compared with asphalt pavement, cement concrete pavement has the advantages of lower grade, more production quantity, and more convenient material acquisition. In order to promote the construction of cement concrete roads nationwide, the Ministry of Transport at that time issued a series of documents to actively promote cement concrete pavement, and jointly introduced relevant subsidy policies with other departments.
In 1995, the first expressway paved with cement concrete in Sichuan was completed, and in the following years, cement concrete highways sprung up all over the country.
These highways, made of cement, pebbles and admixtures, carried tens of millions of large trucks day and night, transporting goods from all over the world and resisting the invasion of storms and rains.
However, in the process of long-term use, these cement concrete pavements will inevitably crack and break. In order to strengthen the use of road surface, the general highway will use asphalt for secondary stabilization.
Although it looks a little unsightly, and driving on it may not feel so smooth, every scar is proof of the serious life of the hardworking and brave Chinese.
The wheels of the times are rolling forward, the society is constantly progressing, and with the rapid development of China's economy, China's road construction is also constantly improving. Just like ten fingers have their own strengths, asphalt pavement and cement concrete pavement have their own advantages and disadvantages, what we need to do is to use the most suitable pavement to adapt to different needs, rather than blindly compare.
Some netizens will compare the road construction situation in China and Japan, with devastated roads on one side and new and clean roads on the other. Such a comparison is easy to confuse.
However, these doubts should motivate us to live harder, rather than generate gossip, and some people may even measure the economic strength of the two countries by the construction of roads, which is redundant.
Japan's asphalt pavement rate has reached 989%, compared to 63% in the United States, which does not prove that Japan is stronger than the United States. The evaluation of a country's strength should be based on its comprehensive development, and the evaluation is limited to a small asphalt pavement, which is tantamount to choking and wasting food.
According to the data of the Ministry of Communications, more than ninety percent of China's new roads use asphalt pavement, and asphalt pavement accounts for more than half of the country's highways. In recent years, we have not only made great efforts in asphalt paving, but also paid more attention to the research and development of domestic asphalt production.
It is a matter of pride that almost all the asphalt used in paving roads in China is independently developed and produced by us. On the road of asphalt production and sales, China has achieved self-sufficiency, and the "asphalt problem" that limited China's economic development in the past has now become an important part of China's economic development.
In our country, the original intention of road construction has always been to meet the transportation needs of economic development. In those years, in order to pave the road quickly, we had relatively loose requirements for road construction.
However, with the development of cities and the improvement of living standards, the pipes buried under the pavement need to be maintained and renewed, which leads to repeated repairs of the pavement. Although this has caused inconvenience, it reflects the determination and strength of our country to improve the living standards of the people.
On the land of China, there are countless roads, some of them are potholes, some are dilapidated and broken, and some are wide and smooth, and ......Whenever we walk on these roads, we may not be able to help but complain about "why this road is so difficult", but we should think more deeply that it is these roads that have witnessed the rise of China's economy and made the Chinese people stand on the stage of the new era and shine brightly.
These roads are our choices for economic development, our decisions in improving people's lives, and the deep imprint left by our Chinese people on the road ahead!
Today's Knowledge Bureau shared the story of road construction in China and Japan, do you prefer asphalt roads or cement concrete roads? What do you think about China's road construction?
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