Anti-blocking pervious concrete easy to clean

Abstract

The utility model discloses anti-blocking pervious concrete easy to clean. The anti-blocking pervious concrete easy to clean comprises a microporous material layer, a fine aggregate pervious concrete layer and a coarse aggregate pervious concrete layer. The anti-blocking pervious concrete structure sequentially comprises a microporous material layer (1), a fine aggregate pervious concrete layer (2) and a coarse aggregate pervious concrete layer (3) from top to bottom, a circle of rigid groove (4) is formed in the periphery of the pervious concrete layer, holes are formed in the bottom of the groove, and the groove directly makes contact with coarse aggregate pervious concrete and is used for discharging redundant rainwater. Through reasonable matching of the microporous material layer, the fine aggregate pervious concrete layer and the coarse aggregate pervious concrete layer and rigid grooves with holes, the pervious effect of the pervious concrete is guaranteed; and through the microporous material layer, gaps of the pervious concrete are prevented from being blocked by foreign matters.

Description

Technical Field

[0001] The utility model belongs to the field of garden building materials, and in particular relates to easy-to-clean, anti-blocking, permeable concrete. Background Art

[0002] With the development of economy and society and the acceleration of urbanization, there are more and more cement pavements. The coverage of these impermeable materials has brought great negative impact on the ecological environment of the city, not only causing the urban "heat island effect" and higher and higher temperatures, but also causing the groundwater level to drop, causing ground subsidence, and the poor drainage of rainwater causing waterlogging, etc., causing huge economic losses.

[0003] Permeable concrete, also known as porous concrete, sandless concrete, and permeable floor, is a porous concrete made of aggregate, cement, water and reinforcing agent. It has the characteristics of air permeability, water permeability and light weight.

[0004] However, the permeable concrete on the market at this stage has a short lifespan. Generally, it needs to be re-paved within 5 years. The reason is that, on the one hand, the low strength causes cracks in some permeable concrete; on the other hand, over time, foreign matter in the surrounding environment (including various garbage, dust, etc.) blocks the pores of the permeable concrete, resulting in the loss of the permeable function of the permeable concrete, which affects the use of the permeable concrete. At present, the blockage of permeable concrete is a long-standing problem. How to reasonably prepare anti-blocking or easy-to-clean permeable concrete is a major trend in permeable concrete. Utility Model Content

[0005] The utility model aims to provide an easy-to-clean, anti-clogging permeable concrete, in order to solve the problem that the permeable concrete is easy to clog and difficult to clean mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an easy-to-clean, anti-blocking permeable concrete, comprising a microporous material layer (1), a fine aggregate permeable concrete layer (2), a coarse aggregate permeable concrete layer (3), a rigid groove (4), etc.

[0007] Preferably, the microporous material layer (1) is an inorganic material layer with a microporous structure, which is made of dry hard mortar, microporous cement mortar or foamed cement and has water absorption and water permeability.

[0008] Preferably, the rigid groove (4) is a metal frame or an engineering plastic frame, and the bottom of the groove has evenly distributed small holes, the diameter of the small holes is 10-20 mm, and the width of the groove is 15-25 mm.

[0009] Preferably, the microporous material layer has a thickness of 10-20 mm, the fine aggregate water-permeable layer has a thickness of 30-50 mm, and the coarse aggregate water-permeable layer has a thickness of 30-50 mm.

[0010] Preferably, the particle size range of the fine aggregate permeable concrete is 3-5 mm; the particle size range of the coarse aggregate permeable concrete is 5-15 mm.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) Since the microporous material layer is an inorganic material layer with a microporous structure, its micro-voids are very small (micrometer level), and most of the garbage is millimeter level, so the possibility of blockage can be eliminated. The laying of microporous materials can effectively reduce the blockage of permeable concrete;

[0013] (2) Through the rigid grooves, tiny particles in rainwater can flow into the large-aperture permeable concrete layer, which can reduce the amount of rainwater in the microporous material layer on the one hand, and also reduce the blockage of the microporous material layer by tiny particles in rainwater; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the permeable concrete of the utility model;

[0015] In the figure: 1. Microporous material layer; 2. Fine aggregate permeable concrete layer; 3. Coarse aggregate permeable concrete layer; 4. Rigid groove.

[0016] Figure 2 It is a top view of the permeable concrete of the utility model;

[0017] In the figure: 1. Microporous material layer; 4. Rigid groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 2 The utility model provides a technical solution: an easy-to-clean, anti-blocking permeable concrete, comprising a microporous material layer (1), a fine aggregate permeable concrete layer (2), a coarse aggregate permeable concrete layer (3), a rigid groove (4), etc.

[0020] In this embodiment, preferably, the microporous material layer can be a microporous cement mortar prepared by adding an air entraining agent or a foaming agent to a high-strength cement mortar. The microporous cement mortar has a microporous structure and is an inorganic material with a large number of micron-sized voids. The thickness of the microporous material layer is 10 mm.

[0021] In this embodiment, preferably, the rigid groove is made of channel steel, has a width of 15 mm, and a diameter of the circular hole at the bottom is 10 mm.

[0022] Preferably, the fine aggregate permeable concrete layer is permeable concrete made of stones with a diameter of 3-5 mm, with a compressive strength of more than 20 MPa, and the thickness of the fine aggregate permeable concrete layer is 30 mm.

[0023] Preferably, the coarse aggregate permeable concrete layer is permeable concrete made of stones with a diameter of 5-15 mm, with a compressive strength of more than 20 MPa, and the thickness of the coarse aggregate permeable concrete layer is 50 mm.

[0024] The working principle and use process of the utility model: when preparing concrete, after completing the construction preparation work, first lay a 10cm thick coarse aggregate permeable concrete layer, vibrate and flatten it, place and fix the groove, lay a fine aggregate permeable concrete layer after vibrating and flattening it, and then lay microporous cement mortar, and perform leveling and grinding work. The microporous cement mortar and the rigid groove are of the same height. After pouring, cover with film for maintenance.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-clean, anti-blocking permeable concrete characterized by The invention is composed of a microporous material layer (1), a fine aggregate permeable concrete layer (2) and a coarse aggregate permeable concrete layer (3); the permeable concrete layer (2) is surrounded by a circle of rigid grooves (4); the bottom of the rigid grooves (4) is provided with holes which are in direct contact with the coarse aggregate permeable concrete and are used to discharge excess rainwater.

2. The easy-to-clean, anti-blocking permeable concrete according to claim 1, characterized in that: The microporous material layer (1) is an inorganic material with a microporous structure, has water absorption and water permeability, and has a smooth surface.

3. The easy-to-clean, anti-blocking permeable concrete according to claim 1, characterized in that: The rigid groove (4) is a metal frame or an engineering plastic frame, and has evenly distributed small holes at the bottom of the groove, the diameter of the small holes is 10-20 mm, and the width of the groove is 15-25 mm.

4. The easy-to-clean, anti-blocking permeable concrete according to claim 1, characterized in that: The thickness of the microporous material layer (1) is 10-20 mm, the thickness of the fine aggregate permeable concrete layer (2) is 30-50 mm, and the thickness of the coarse aggregate permeable concrete layer (3) is 30-50 mm.

5. The easy-to-clean, anti-blocking permeable concrete according to claim 1, characterized in that: The microporous material layer (1) is made of dry hard mortar, microporous cement or foamed cement.

6. The easy-to-clean, anti-blocking permeable concrete according to claim 1, characterized in that: The particle size range of fine aggregate permeable concrete is 3-5mm; the particle size range of coarse aggregate permeable concrete is 5-15mm.

Images