國家為什么大力發展再生工藝？

Why does the country vigorously develop recycling technology?

　　第一個，資源的再次利用，符合國家及世界大的政策方針，勢在必行。

The first is that the reuse of resources is in line with national and global policy guidelines, and is imperative.

　　給大家看一組數據：

Let me show you a set of data:

　　截至2030年，預計我國公路網總規模將達到580萬公里，

By 2030, it is expected that the total scale of China's highway network will reach 5.8 million kilometers,

　　按照瀝青路面的設計壽命（15~20 年），

According to the design life of asphalt pavement (15-20 years),

　　每年約有12%的瀝青路面需要翻修，

Approximately 12% of asphalt pavements require renovation every year,

　　舊瀝青混合料廢棄量將達到290萬噸之多，

The amount of discarded old asphalt mixture will reach up to 2.9 million tons,

　　如能加 以利用，每年可節省材料費用3億元以上，

If utilized, it can save material costs of over 300 million yuan annually,

　　而且這個數字還將以每年15%的速度增長。

And this number will also grow at a rate of 15% per year.

　　所以我們沒有道理不去使用再生工藝。

So we have no reason not to use recycling technology.

　　第二個，盡管中國推廣再生工藝的時間不算長，但國內外大量工程案例和研究結論表明，瀝青路面再生技術成熟可靠，只要科學設計、精心施工，工程質量可以保證。在國外再生料的利用率是非常之高的，比利時和德國等國家已經實現了100%的利用率，所以我們國家從2008年開始逐步推廣再生工藝，近兩年推廣速度更加迅速。

Secondly, although China has not been promoting recycling technology for a long time, a large number of engineering cases and research conclusions at home and abroad indicate that asphalt pavement recycling technology is mature and reliable. As long as scientific design and careful construction are carried out, the engineering quality can be guaranteed. The utilization rate of recycled materials is very high abroad, and countries such as Belgium and Germany have achieved a 100% utilization rate. Therefore, our country has gradually promoted the recycling process since 2008, and the promotion speed has been faster in the past two years.

　　ASTEC公司將再生料鋪設后，負載卡車在上面按照設計標準和年限連續運行，在時間節點取樣進行測試，最后實測的數據結果是再生料鋪筑的路面不比新料差，而且在抗車轍等方面性能優于新料。

After laying the recycled material, ASTEC company continuously operated the load truck on it according to the design standards and service life. Samples were taken at time nodes for testing. The final measured data showed that the road surface paved with recycled material was not inferior to the new material, and its performance in resistance to rutting was better than that of the new material.

　　所以再生料鋪設后的路面性能上是可靠的。

So the performance of the road surface after the laying of recycled materials is reliable.

　　再生從大的方面可以分為兩類，也就是大家時常聽到的熱再生和冷再生，大家可以簡單理解成一個需要對舊瀝青料加熱處理，一個不需要對舊瀝青料加熱處理，同時兩種再生方式又分為就地再生和廠拌再生。

Regeneration can be divided into two categories from a large perspective, namely hot regeneration and cold regeneration, which are commonly heard. They can be simply understood as one that requires heating treatment of old asphalt materials, and the other that does not require heating treatment of old asphalt materials. At the same time, the two regeneration methods are further divided into on-site regeneration and plant mix regeneration.

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