Seal coat with road surface cooling function

Abstract

The invention discloses a seal coat with a road surface cooling function. The seal coat comprises the following raw materials in parts by weight: 100 parts of mineral aggregate, 0-3 parts of cement, 6-12 parts of water, 4-20 parts of emulsified asphalt, 0.2-3 parts of calamine, 0.2-3 parts of molybdenite and 0-1 part of an assistant; the seal coat adopts a micro-surfacing or a thin pulp seal coat; the emulsified asphalt is one of common emulsified asphalt, SBS modified emulsified asphalt or SBR modified emulsified asphalt; the calamine is calamine powder; the molybdenite is molybdenite powder; the assistant is a silane coupling agent or a titanate coupling agent. The seal coat with the road surface cooling function reasonably utilizes the excellent characteristics of calamine and molybdenite, can reduce the road surface temperature by 5-10 DEG C in hot summer, relieves the heat island effect in a city and the problem about track at a high temperature, and has the characteristics of skid resistance, crack control, low carbon and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of road materials, and in particular relates to a sealing layer with a road surface cooling function. Background technique [0002] Asphalt pavement has many advantages such as good driving comfort, low noise, easy repair and maintenance, and has become the main form of urban pavement structure in our country. However, as a heat-absorbing material with high temperature sensitivity, asphalt pavement also has certain disadvantages in the application process: in the high temperature season of summer, under continuous sunlight, a large amount of heat is absorbed by the asphalt pavement and stored in the asphalt pavement layer. Accumulated, the temperature of the asphalt pavement can reach 63 ℃ ~ 68 ℃, which seriously aggravates the urban "heat island effect" and affects the living comfort of citizens. To shorten the service life of the road, it will be of great significance if certain technical measures can be ...

AI Technical Summary

Problems solved by technology

However, as a heat-absorbing material with high temperature sensitivity, asphalt pavement also has certain disadvantages in the application process: in the high temperature season of summer, under continuous sunlight, a large amount of heat is absorbed by the asphalt pavement and stored in the asphalt pavement layer. Accumulated, the temperature of the asphalt pavement can reach 63 ℃ ~ 68 ℃, which seriously aggravates the urban "heat island effect" and affects the living comfort of citizens. To shorten the service life of the road, it will be of great significance if certain technical measures can be taken to preventive maintenance of the road surface to overcome the above problems

[0003] At present, in order to solve the problem of road surface cooling, the technology of coating a layer of cooling material on the surface of asphalt concrete roads is mainly adopted at home and abroad. Slippery etc.

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