CN112779836A - Waterborne polyurethane pavement structure - Google Patents

Abstract

Translated fromChinese

本申请涉及道路施工技术领域，更具体地说，它涉及一种水性聚氨酯路面结构，包括地基层，所述地基层自下而上依次铺设有碎石层、细砂层和透水混凝土层，所述透水混凝土层设有聚氨酯涂料层；所述聚氨酯涂料层上设有防滑凸起，所述防滑凸起呈半球形；所述聚氨酯涂层上设有路缘石，所述路缘石设有出水孔。该路面结构能有效地解决市政和园林景观工程路面透水性差，不易雨水的吸纳、蓄渗、缓解、循环利用，砖铺的易变形不平整、易褪色，塑胶的有味道、耐久性差等难题，既美化了市政和园林景观工程路面，又有效控制雨水径流，实现自然积存、自然渗透、自然净化，能修复城市水生态、涵养水资源、增强城市防涝能力，减轻市政排水系统的压力。

The present application relates to the technical field of road construction, and more particularly, to a water-based polyurethane pavement structure, including a base layer, which is sequentially laid with a gravel layer, a fine sand layer and a permeable concrete layer from bottom to top. The permeable concrete layer is provided with a polyurethane coating layer; the polyurethane coating layer is provided with anti-skid protrusions, and the anti-skid protrusions are hemispherical; the polyurethane coating is provided with curb stones, and the curb stones are provided with water outlet holes . The pavement structure can effectively solve the problems of poor water permeability of municipal and garden landscape engineering pavements, not easy to absorb, store, alleviate and recycle rainwater, easy deformation, unevenness and fading of brick paving, odor of plastic and poor durability. It not only beautifies the pavement of municipal and garden landscape projects, but also effectively controls rainwater runoff, realizes natural accumulation, natural infiltration, and natural purification, can restore urban water ecology, conserve water resources, enhance urban waterlogging prevention capabilities, and reduce the pressure on municipal drainage systems.

Description

Waterborne polyurethane pavement structure

Technical Field

The application relates to the technical field of road construction, in particular to a waterborne polyurethane pavement structure.

Background

The existing municipal and garden landscape engineering has poor road surface water permeability, is not easy to absorb, store, seep, relieve and recycle rainwater, is easy to deform and not flat and fade, and has the problems of poor taste and durability of plastic cement and the like.

Content of application

In view of the above-mentioned deficiencies of the prior art, the present application aims to provide a water-based polyurethane pavement structure having the advantages of smoothness, fastness, no odor and excellent durability.

The technical purpose of the application is realized by the following technical scheme: a waterborne polyurethane pavement structure comprises a foundation layer, wherein a rubble layer, a fine sand layer and a permeable concrete layer are sequentially paved on the foundation layer from bottom to top, and the permeable concrete layer is provided with a polyurethane coating layer; the polyurethane coating layer is provided with anti-skid protrusions, and the anti-skid protrusions are hemispherical; be equipped with the curb on the polyurethane coating, the curb is equipped with the apopore.

Preferably, the ground layer is composed of cement and sand.

Preferably, the thickness of the crushed stone layer is 200 mm.

Preferably, the thickness of the fine sand layer is 150 mm.

Preferably, the thickness of the pervious concrete layer is 100 mm.

Preferably, the polyurethane coating layer is formed by mixing a polyurethane dispersion, nitrogen methyl pyrrolidone and deionized water.

Preferably, the polyurethane coating layer comprises the following components in percentage by mass: 30-39% of polyurethane dispersion; 0-1% of N-methyl pyrrolidone; 70-60% of deionized water.

To sum up, the beneficial effect that this application has: the pavement structure can effectively solve the problems of poor water permeability of municipal and garden landscape engineering pavements, difficult rainwater absorption, storage and seepage, alleviation and recycling, easy deformation and unevenness and easy fading of brick pavements, poor taste and durability of plastics and the like, beautifies the municipal and garden landscape engineering pavements, effectively controls rainwater runoff, realizes natural accumulation, natural seepage and natural purification, can restore urban water ecology, conserve water resources, enhance urban waterlogging prevention capability and reduce the pressure of a municipal drainage system; in addition, hemispherical anti-skid protrusions can improve the anti-skid capacity of the road surface, and water outlet holes in the kerbstones are favorable for road surface drainage.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Reference numerals: 1. a ground layer; 2. a crushed stone layer; 3. a fine sand layer; 4. a pervious concrete layer; 5. a polyurethane coating layer; 6. anti-skid projections; 7. a curb; 71. and (7) water outlet holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

A water-based polyurethane pavement structure is shown in figure 1 and comprises a foundation layer, wherein a crushed stone layer, a fine sand layer and a permeable concrete layer are sequentially paved on the foundation layer from bottom to top, and the permeable concrete layer is provided with a polyurethane coating layer; the polyurethane coating layer is provided with anti-skid protrusions, and the anti-skid protrusions are hemispherical; be equipped with the curb on the polyurethane coating, the curb is equipped with the apopore.

The pavement structure can effectively solve the problems of poor water permeability of municipal and garden landscape engineering pavements, difficult rainwater absorption, storage and seepage, alleviation and recycling, easy deformation and unevenness and easy fading of brick pavements, poor taste and durability of plastics and the like, beautifies the municipal and garden landscape engineering pavements, effectively controls rainwater runoff, realizes natural accumulation, natural seepage and natural purification, can restore urban water ecology, conserve water resources, enhance urban waterlogging prevention capability and reduce the pressure of a municipal drainage system; in addition, hemispherical anti-skid protrusions can improve the anti-skid capacity of the road surface, and water outlet holes in the kerbstones are favorable for road surface drainage.

Specifically, the ground layer is composed of cement and sand.

Specifically, the thickness of the crushed stone layer is 200 mm.

Specifically, the thickness of the fine sand layer is 150 mm.

Specifically, the thickness of the pervious concrete layer is 100 mm.

Specifically, the polyurethane coating layer is formed by mixing polyurethane dispersoid, nitrogen methyl pyrrolidone and deionized water.

Specifically, the polyurethane coating layer comprises the following components in percentage by mass: 30-39% of polyurethane dispersion; 0-1% of N-methyl pyrrolidone; 70-60% of deionized water.

The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.

Claims (7)

Translated fromChinese

1.一种水性聚氨酯路面结构，其特征是：包括地基层，所述地基层自下而上依次铺设有碎石层、细砂层和透水混凝土层，所述透水混凝土层设有聚氨酯涂料层；所述聚氨酯涂料层上设有防滑凸起，所述防滑凸起呈半球形；所述聚氨酯涂层上设有路缘石，所述路缘石设有出水孔。1. a water-based polyurethane pavement structure, is characterized in that: comprise ground base, described ground base is laid with gravel layer, fine sand layer and permeable concrete layer successively from bottom to top, and described permeable concrete layer is provided with polyurethane coating layer The polyurethane coating layer is provided with anti-skid protrusions, and the anti-skid protrusions are hemispherical; the polyurethane coating is provided with curb stones, and the curb stones are provided with water outlet holes.2.根据权利要求1所述的一种水性聚氨酯路面结构，其特征是：所述地基层为水泥和沙子组成。2 . The waterborne polyurethane pavement structure according to claim 1 , wherein the ground base is composed of cement and sand. 3 .3.根据权利要求1所述的一种水性聚氨酯路面结构，其特征是：所述碎石层的厚度为200mm。3 . The water-based polyurethane pavement structure according to claim 1 , wherein the thickness of the gravel layer is 200 mm. 4 .4.根据权利要求1所述的一种水性聚氨酯路面结构，其特征是：所述细砂层的厚度为150mm。4 . The water-based polyurethane pavement structure according to claim 1 , wherein the thickness of the fine sand layer is 150 mm. 5 .5.根据权利要求1所述的一种水性聚氨酯路面结构，其特征是：所述透水混凝土层的厚度为100mm。5 . The water-based polyurethane pavement structure according to claim 1 , wherein the thickness of the permeable concrete layer is 100 mm. 6 .6.根据权利要求1所述的一种水性聚氨酯路面结构，其特征是：所述聚氨酯涂料层由聚氨酯分散体、氮甲基吡咯烷酮以及去离子水混合而成。6 . The water-based polyurethane pavement structure according to claim 1 , wherein the polyurethane coating layer is formed by mixing polyurethane dispersion, nitrogen methyl pyrrolidone and deionized water. 7 .7.根据权利要求6所述的一种水性聚氨酯路面结构，其特征是：所述聚氨酯涂料层中的各组分质量百分比为：聚氨酯分散体30-39％；氮甲基吡咯烷酮0-1％；去离子水70-60％。7. A water-based polyurethane pavement structure according to claim 6, wherein the mass percentage of each component in the polyurethane coating layer is: 30-39% of polyurethane dispersion; 0-1% of nitrogen methyl pyrrolidone ; Deionized water 70-60%.

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