Crack pressure-sensitive solidification self-healing asphalt concrete, as well as preparation method and application method thereof

Abstract

The invention discloses crack pressure-sensitive solidification self-healing asphalt concrete, as well as a preparation method and an application method thereof. The crack pressure-sensitive solidification self-healing asphalt concrete comprises the following components in parts by mass: 80-110 parts of aggregate, 3-15 parts of an asphalt cementing agent, and 0.5-10 parts of capsule particles, wherein the capsule particles exist in the asphalt cementing agent. The invention provides a new idea for prolonging the service life of a pavement of asphalt, and provides the scheme of the crack pressure-sensitive solidification self-healing asphalt concrete from the aspect that a material self stores a repairing material; the durability of the pavement is improved, the follow-up maintenance frequency and cost are reduced, and good economic advantages are achieved; in addition, the influence of construction on transportation and local ecological environment is avoided, and good social and environmental benefits are achieved.

Description

technical field [0001] The invention relates to an asphalt pavement repair material and a preparation method thereof, in particular to a crack pressure-sensitive curing self-healing asphalt concrete, a preparation method and a use method. Background technique [0002] As the main paving form of roads in my country, asphalt pavement usually shows signs of damage after 3 to 4 years of service due to its own material limitations and the influence of external environmental factors. This sign of damage often begins with the germination of cracks. Finally, under the joint action of external load, alternating cold and heat, and rain, common cracks, looseness, pits and other diseases are formed. [0003] The germination and expansion of cracks are irreversible, and once it occurs, the only way to slow down the expansion speed is to delay the damage time. Common methods include preventive maintenance measures, and major and medium repair methods such as excavation and re-paving. At ...

AI Technical Summary

Problems solved by technology

Common methods include preventive maintenance measures, and major and medium repair methods such as excavation and re-paving. At this stage, there is no one that can repair the asphalt mixture independently from the source of cracks, so as to achieve the effect of continuous utilization of the road surface

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