Epoxy modified cement pavement antiskid wearing layer and construction method thereof

Abstract

An epoxy modified cement pavement antiskid wearing layer comprises a water-borne epoxy resin bonding layer formed by spraying water-borne epoxy resin and a water-borne epoxy curing agent on a cement concrete pavement; an epoxy asphalt sealing layer, formed by sequentially spreading a first epoxy asphalt cementing material, a first aggregate and a second epoxy asphalt cementing material on the water-borne epoxy resin bonding layer, and having a first epoxy asphalt cementing material layer/first aggregate layer/second epoxy asphalt cementing material layer sandwich structure; wherein the first aggregate is limestone, diabase or basalt; a high-viscosity modified asphalt macadam sealing layer, formed by synchronously spreading high-viscosity modified asphalt and second aggregate on the epoxy asphalt sealing layer and rolling the epoxy asphalt sealing layer through a road roller, and the high-viscosity modified asphalt macadam sealing layer and the epoxy asphalt sealing layer being mutually embedded and extruded to form an integrated fusion structure; wherein the particle size of the second aggregate is not greater than that of the first aggregate, and the second aggregate is basalt or diabase; and an asphalt sealing layer, formed by spreading a sealing surface material on the high-viscosity modified asphalt macadam sealing layer.

Description

technical field [0001] The application belongs to the technical field of asphalt roads, and in particular relates to an epoxy-modified cement pavement anti-skid wear layer and a construction method thereof. Background technique [0002] Cement concrete pavement is widely used in my country due to its advantages of high strength, high rigidity, good durability, low cost and easy daily maintenance. The proportion of pavement is about 40%, and the proportion of cement concrete pavement of secondary road is about 57%. The surface macrostructure of the newly-built cement concrete pavement, which is obtained by roughening and groove-cutting techniques during the construction period, has a large number of early failures after 3 to 5 years of being put into use, especially the macrostructure and microscopic texture of the cement concrete pavement shortly after it was opened to traffic. After that, it is gradually worn away, resulting in a sharp decline in the anti-skid performance o...

AI Technical Summary

Problems solved by technology

(1) In the super micro-surfacing process, the super micro-surfacing and the cement concrete pavement belong to the ordinary physical connection, and the bonding problem has not been effectively solved, resulting in the super micro-surfacing is very easy to appear under the action of driving shear force Peeling and peeling, which limits its large-area application

(2) In the process of overlaying high modulus asphalt concrete, directly overlaying high modulus asphalt concrete on the cement concrete pavement can improve the anti-rutting and anti-crack reflection capabilities, but the application limitations for occasions with limited load-bearing and elevation are relatively large

(3) In the process of adding NovaChip ultra-thin overlay, directly adding NovaChip ultra-thin overlay on the cement concrete pavement can quickly improve the anti-skid and driving quality of the road surface, but the application limitations are relatively large in occasions with limited load-bearing and elevation

(4) In the process of adding an ultra-thin anti-skid layer, adding an ultra-thin anti-skid layer on the cement concrete pavement can greatly improve the anti-skid performance of the tunnel pavement. extremely poor reflexes

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