Direct-vat-set asphalt particles for pavement patching and preparation method of direct-vat-set asphalt particles

Abstract

The invention discloses direct vat set asphalt particles for pavement patching and a preparation method thereof, and the direct vat set asphalt particles are prepared from the following raw materials in parts by weight through mechanical granulation: 15-25 parts of aromatic hydrocarbon oil, 1-4 parts of an asphalt anti-aging agent, 2-4 parts of an SBS modifier, 3-10 parts of waste rubber powder, 25-40 parts of C5 petroleum resin and 20-35 parts of C9 petroleum resin. According to the invention, the direct vat set asphalt particle finished product is asphalt particles mechanically granulated by asphalt particle granulation equipment, is clean and tidy, is easy to bag and package, and is convenient to transport and store for a long time; and in addition, the direct-vat-set asphalt particles do not contain large-particle aggregates, not only has the possibility of mechanical granulation, but also greatly reduces the weight of the product, so that the transportation cost is greatly reduced. In addition, the direct-vat-set asphalt particles have good performance and are convenient to use.

Description

technical field [0001] The invention relates to the technical field of asphalt pavement repair and maintenance, in particular to a direct-injection asphalt granule for road surface repair and a preparation method thereof. Background technique [0002] Asphalt pavement has the characteristics of high flatness, low noise, comfortable driving, and convenient maintenance, so it is widely used in expressways and municipal roads. However, due to the years of operation and the joint action of traffic load and environmental factors, as time goes by, asphalt pavement will suffer from pavement aging, cracking and potholes, which will affect the traffic and the service life of the road. For this reason, it is necessary to repair and maintain the diseased asphalt pavement in time. [0003] Usually, there are two kinds of hot-patch asphalt mixture and cold-patch asphalt mixture mainly used for repairing cracks, potholes and damage of asphalt pavement. Due to the slow cooling rate of ho...

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Problems solved by technology

[0009] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a direct-injection asphalt granule for pavement repair and its preparation method, so as to solve the problem that the existing asphalt pavement cold replenishment fluid has a slow condensation rate and the prepared cold patch Poor anti-rutting performance, low strength, easy threshing, easy cracking at low temperature, inconvenient transportation and storage problems, etc.

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