Overview of Asphalt Pavement Regeneration

[quangongzi]

The reuse technology of the old asphalt pavement material was developed from the 1970s. Due to the emergence of the international energy crisis at that time, the recycling of the old asphalt pavement material has attracted people's attention from the resource and economic aspects Over the years, many countries in the international practice has proved that the old asphalt pavement material recycling has great advantages: the recycling of old materials to avoid waste disposal of waste; the use of old materials to reduce the use of new materials, Reduce the consumption of energy; the old material recycling, the cost of the project can be reduced by about 30%.Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery
Europe and the United States developed countries, highway construction is relatively perfect, the road has been in a stable and stable stage, that is, the road into the conservation-based state, in this state of the demand for asphalt mixture is also very stable, and the national regeneration of mixed material Accounting for 1/3 ~ 1/5 of the total amount of asphalt mixture. It can be seen that the regeneration of the old asphalt pavement has accounted for a large proportion in the construction and maintenance of highway in developed countries in Europe and the United States.
Asphalt pavement regeneration technology. Old asphalt pavement regeneration methods are many, old asphalt pavement regeneration method can be summarized as heat regeneration and cold regeneration two categories. Thermal regeneration can be divided into hot mix regeneration and in situ heat regeneration; cold regeneration can be divided into cold regeneration and local cold regeneration. From the data released by the European Asphalt Pavement Association, the asphalt pavement regeneration methods in Europe and the United States are mainly composed of heat and warm mix, and the International Organization for Economic Co-operation and Development (OECD) Mixed regeneration) is a commonly used regeneration method, cold regeneration generally only a small proportion of other regeneration methods are only used in a few countries.
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