Semi-flexible pavement material and paving method capable of quickly opening traffic for semi-flexible pavement

Abstract

The invention discloses a semi-flexible pavement material and a paving method capable of quickly opening traffic for a semi-flexible pavement. The semi-flexible pavement material contains a porous mixture and a cement-based grouting material filled in holes of the porous mixture; the porous mixture is prepared from the following components in parts by mass: 4 to 8 parts of bisphenol A type epoxy resin, 3 to 6 parts of absolute ethyl alcohol, 3 to 6 parts of ethylene glycol butyl ether, 5 to 10 parts of polyalcohol amine, 10 to 15 parts of flexible latex, 65 to 75 parts of coarse aggregate, 15to 20 parts of fine aggregate and 35 to 40 parts of mineral powder; the cement-based grouting material is prepared from the following components in parts by mass: 35 to 45 parts of portland fly-ash cement, 15 to 20 parts of ground slag powder, 1 to 5 parts of early strength agent, 1 to 3 parts of ground tire, 10 to 15 parts of water reducing agent, 1 to 5 parts of shrinkage reducing agent, 0.5 to3 parts of accelerator, 3 to 6 parts of defoaming agent and 20 to 25 parts of water. The semi-flexible pavement material disclosed by the invention has the advantages of energy saving, environment friendliness, excellent property, relatively-low cost, capability of being quickly put into use, simple construction process and easiness in actual operation.

Description

technical field [0001] The invention relates to the technical field of road pavement, in particular to a semi-flexible pavement material and a semi-flexible pavement paving method that can quickly open traffic. Background technique [0002] my country's existing road pavement can be basically divided into cement concrete pavement and asphalt concrete pavement. The cement concrete pavement has good bearing capacity, but poor flexibility. Under the action of temperature stress, it is prone to plate cracking, mud pumping and other diseases, so the cement concrete pavement must be equipped with joints, so it will not only affect the driving comfort, but also surface water It will sneak into the roadbed, making the roadbed soft and the bearing capacity weakened. The asphalt concrete pavement has good flexibility and no joints, but after one or several high temperature seasons, deep ruts will appear on the asphalt concrete pavement, which seriously affects driving safety and comf...

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Problems solved by technology

[0003] However, in the existing research, there are still many problems in the semi-flexible pavement: for example, the hot-mix asphalt mixture consumes a lot of energy and pollutes the environment; It requires a long time for health preservation, so that there will be a long time for closed traffic before urban roads are used; in addition, in the context of increasing traffic volume and traffic axle load in my country, the compressive and shearing properties of semi-flexible pavements are also raised. higher requirements

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