Water conservation temperature reduction half-flexible pavement and construction method thereof

Abstract

The invention discloses a water conservation temperature reduction half-flexible pavement. The pavement is formed by porous basic asphalt mixture; the pore of the porous basic asphalt mixture is filled by cement base water conservation mucilage. The porous basic asphalt mixture is formed by mixing high viscocity rubber modified asphalt with the brookfield viscosity of 1.5 to 4.0 Pa-S, aggregate and mineral powder when the detection temperature is 175 DEG C. The construction method is as follows: the porous basic asphalt mixture is paved on a compacted basic level; the cement base water conservation mucilage is used for grouting construction on the porous basic asphalt mixture; the pore of the porous basic asphalt mixture is filled; redundant sizing agent on the pavement is cleared. The water conservation temperature reduction half-flexible pavement overcomes the respective shortcoming of cement pavement and asphalt pavement, has the high strength, good toughness, long service life, gives the particular water conservation temperature reduction function on the pavement; the pavement temperature can be reduced by more than 10 to 20 DEG C; the water conservation temperature reduction half-flexible pavement has the remarkable ecological, technical, economic and social benefits.

Description

technical field [0001] The invention belongs to the road construction technology, and in particular relates to a semi-flexible road surface with water retention and temperature reduction capable of maintaining water on the road surface and reducing the temperature of the road surface and the environment, and a construction method thereof. Background technique [0002] Due to the increasingly large urban area, dense population, increased impermeable building area, and a large number of heat removal machines, as a result, the probability of natural rainfall infiltrating into the ground soil is greatly reduced, and the urban thermal balance is disrupted, so that the road surface heat cannot be released, and even lead to the increasingly high temperature of the living environment urban "heat island" effect. Improving the urban "heat island" effect, reducing the impact on ecology, and saving water resources have become one of the main topics in the protection of ecology and water...

AI Technical Summary

Problems solved by technology

Therefore, the existing pavement, whether it is cement pavement or asphalt pavement, cannot absorb water, retain water and cool down, so as to adjust the surrounding ecological environment.

The Chinese patent publication number is CN101096837, the publication date is January 2, 2008, and the invention name is "semi-flexible composite pavement structure and its construction method". In this application, a semi-flexible composite pavement structure and its construction are disclosed method, its shortcoming is that the semi-flexible composite pavement belongs to the dense-skeleton intercalation structure, it is to design the asphalt mixture into a large void ratio, fill the pores with cement mixed mortar, and use the cement mixed mortar to cement it. The strength and compactness formed together with the asphalt mixture skeleton structure can resist the vehicle load and waterproof, but it has no effect of water retention and cooling, and lowering the ambient temperature around the road