1、再生層有關的材料強度。材料強度可采取間接法測定，即對取自于再生機后面的混合料試樣進行各種試驗；或者采用直接法測定，即鉆芯取樣測定實際強度。由于在完工和鉆芯之間有段難以避免的時間延長，而采用再生機后的材料試樣進行室內試驗，其結果相對較快。

1. The material strength related to the regeneration layer. The material strength can be measured indirectly by conducting various tests on the mixed material samples taken from behind the regeneration machine; Alternatively, the direct method can be used, which involves taking samples from the drill core to determine the actual strength. Due to an unavoidable time delay between completion and core drilling, the results of indoor testing using recycled material samples are relatively fast.

2、壓實后材料的干密度。由于再生后材料的組成和顆粒尺寸往往存在變異性，最大干密度因而存在變異性，那么以最大干密度的百分比作為現場密實度的測量是十分困難的。在短的路段內，最大干密度變化5%是正常的，應該確定每個測試點具體的最大干密度。這需要在現場實驗室付出大量的工作。

2. The dry density of the compacted material. Due to the variability in the composition and particle size of recycled materials, there is variability in the maximum dry density. Therefore, it is very difficult to measure the on-site density as a percentage of the maximum dry density. It is normal for the maximum dry density to change by 5% in short road sections, and the specific maximum dry density for each test point should be determined. This requires a lot of work in the on-site laboratory.

3、完工層的厚度。完工層的厚度可通過在再生層上開挖小測試孔來檢查（如在完工后立即進行比較理想）。另外，可等材料達到一定的強度后，從再生層鉆取150mm直徑的芯樣來測定厚度，這通常需要在28d后進行。

3. The thickness of the finished layer. The thickness of the completed layer can be checked by excavating small test holes on the recycled layer (ideal if done immediately after completion). In addition, after the material reaches a certain strength, a 150mm diameter core sample can be drilled from the regeneration layer to determine the thickness, which usually needs to be carried out after 28 days.

雖然冷再生技術可以全部利用舊瀝青層，但從根本上說，這種利用只是簡單的利用，并沒有充分利用舊瀝青材料，因此，泡沫瀝青改性及提高混合料的性能，使再生回收瀝青混合料達到作為磨耗層的標準是今后努力的方向。

Although the cold recycling technology can make full use of the old asphalt layer, fundamentally speaking, this kind of utilization is just a simple utilization, and does not make full use of the old asphalt materials. Therefore, foam asphalt modification and improving the performance of the mixture to make the recycled asphalt mixture meet the standards as a wearing course is the direction of future efforts.

總的說來，從節(jié)約能源和運輸費用角度來看，采用泡沫瀝青進行現場冷再生是目前瀝青路面回收再利用比較合適的工藝方式。作為一項創(chuàng)新型實用技術，瀝青路面冷再生極大程度地改變了我國沿用多年的傳統的瀝青路面維修方法。采用瀝青路面冷再生技術，能夠節(jié)約大量的瀝青、砂石等原材料，同時有利于處理廢料、保護環(huán)境。由于經濟與環(huán)保的要求，盡可能多地利用現有路面材料進行公路養(yǎng)護維修和改造，是符合可持續(xù)發(fā)展要求的。在我國瀝青路面維修養(yǎng)護工程量不斷增加的今天，使用冷再生技術具有重要價值。

In general, from the perspective of saving energy and transportation costs, on-site cold recycling of foam asphalt is a more appropriate process for recycling of asphalt pavement. As an innovative and practical technology, cold regeneration of asphalt pavement has greatly changed the traditional asphalt pavement maintenance methods that have been used in China for many years. The use of asphalt pavement cold recycling technology can save a large amount of raw materials such as asphalt and sand, while also being beneficial for waste treatment and environmental protection. Due to economic and environmental requirements, it is in line with sustainable development requirements to make the most of existing pavement materials for highway maintenance, repair, and renovation. Today, with the increasing amount of asphalt pavement maintenance and repair work in China, the use of cold recycling technology is of great value.