Now, the road with the highest specifications in life is the highway, and due to the fast speed of the car, the quality requirements are very high. The construction of highways is naturally inseparable from concrete. In fact, during the Qin Dynasty in China, there were already highways. There was no concrete at that time, but it was built with pure soil. However, more than two thousand years have passed, and there is still no grass on that road.
The highway, called the Qin Straight Road, is more than 700 kilometers long and spans the three provinces of Shaanxi, Gansu and Mongolia. We all know that after Qin Shi Huang unified the world, he liked to go out on tour of the whole country, but the traffic conditions at that time were far less so. As a far-sighted and long-term emperor, Qin Shi Huang ordered the construction of a hard, flat and wide road.
The purpose of Qin Shi Huang's construction of this road was not only for the convenience of his own patrol, but also for the convenience of transporting troops and transportation. In qin shi huang's view, the significance of building this road was second only to the Great Wall, so Qin Shi Huang entrusted this important errand to the most important general Meng Tian.
Qin Shi Huang's requirements for this road were very high, in addition to being wide and flat, it was also necessary not to become soft on rainy days, and never to grow grass. In the beginning, the craftsmen in charge of the construction were very embarrassed, after all, there was no concrete at that time. But after studying ancient books and experimenting, the craftsmen really thought of a way to thoroughly roast the soil used to build the road, or to burn it and mix it with salt. After such processing, the road will not grow plants, and the hardness will be reached.
This was a huge project, coupled with the fact that the machinery was not developed at that time, all relying on manpower, there was no advanced building materials, and the terrain around Shaanxi and Gansu was precipitous, so until the death of Qin Shi Huang, the road was not completed. After Qin II ascended the throne, he continued to cultivate.
Later, this road played a huge role from the Qin Dynasty to the Tang Dynasty, and when it was known about the Qing Dynasty, this road was gradually abandoned. However, although the road has long been untouched and replaced by a well-connected highway, there are still many unspoiled sections of the road. Although more than two thousand years have passed, these sections are still hard and flat, and there are no weeds.
In fact, a similar path existed before the Shang Dynasty. For example, in Zhengzhou, Henan, the ancient city wall of the Shang Dynasty is still preserved, and it is also built of soil. Nearly three thousand years have passed, and as long as it is not deliberately destroyed, it is still as strong as new. I have to say that the wisdom of the ancients is really admirable.
In addition to Qin Zhidao, what other admirable crystals of the wisdom of the ancients do you know? Welcome to share together!