CN111673882B

CN111673882B - Preparation method of high-strength cement-based water permeable brick

Info

Publication number: CN111673882B
Application number: CN202010563582.XA
Authority: CN
Inventors: 王义廷; 赵明; 林建仁; 谷昕; 伍根伙; 李仰根; 刘文龙; 谢芳
Original assignee: Xiamen Meon Lyujian Technology Co ltd
Current assignee: Xiamen Meon Lyujian Technology Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-05-21
Anticipated expiration: 2040-06-19
Also published as: CN111673882A

Abstract

The invention relates to the technical field of building materials, and discloses a preparation method of a high-strength cement-based water permeable brick.

Description

Preparation method of high-strength cement-based water permeable brick

Technical Field

The invention relates to the technical field of building materials, in particular to a preparation method of a high-strength cement-based water permeable brick.

Background

Permeable roads are increasingly receiving attention from people, particularly in the industry, as a new type of environment-friendly and ecological roads. The permeable road can make rainwater rapidly permeate into the earth surface, effectively supplement underground water, relieve urban heat island effect and balance urban ecological systems. The permeable ground can also be permeable to 'ground air', so that the ground is warm in winter and cool in summer, the permeable ground permeates water in rainy seasons, snow is dissolved in winter, and the comfort level of urban living can be increased. In addition, the permeable ground has more pores and large surface area, so that the permeable ground has stronger adsorption force on dust, dust pollution can be reduced, and noise can be reduced.

The water permeable brick is an important environment-friendly material for paving water permeable roads, can be artificially paved into various shapes and burnt into various colors, and has ornamental value in urban road construction.

At present, the water permeable bricks for the parking lot are all grass planting bricks, after the existing parking lot uses the grass planting bricks for a period of time, along with the growth of the lawn, a water seepage channel is gradually closed, the soil permeability is poor, and the rainwater of medium to heavy rain cannot rapidly permeate into the ground to form runoff.

In view of the above-mentioned defects, the designer actively makes research and innovation to create a preparation method of the high-strength cement-based water permeable brick, so that the brick has industrial utilization value.

Disclosure of Invention

The invention aims to provide a preparation method of a high-strength cement-based water permeable brick, which can be used for preparing a water permeable brick with high permeability and suitable for parking lots.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of a high-strength cement-based water permeable brick comprises the following steps:

s1, preparing cement mortar;

s2, preparing a die, wherein the die comprises an upper die and a lower die, the upper die and the lower die are matched and then form an isosceles trapezoid table, the upper die is provided with a first through hole, and the lower die is provided with a second through hole with the same inner diameter as the first through hole; each side wall of the upper die is provided with a first groove along the inclination direction, and each side wall of the lower die is provided with a second groove with the shape consistent with that of the first groove along the inclination direction; after the upper die and the lower die are assembled, the first through holes are opposite to the second through holes, and the first grooves are respectively connected with the second grooves; at least four first openings are arranged on the side wall of one of the first through hole and the second through hole, each first groove or each second groove is provided with a second opening, and each first opening and each corresponding second opening are positioned on the same inclined line;

s3, injecting cement mortar into the upper die and the lower die;

s4, closing the upper die and the lower die, and leading the four steel pipes to the corresponding first openings from the second openings respectively;

and S5, after the cement mortar in the step S4 is solidified and formed, drawing out each steel pipe in the step S4, and then demoulding the upper die and the lower die.

As a preferable embodiment of the above method for manufacturing a high-strength cement-based water permeable brick, in step S4, a filter screen is placed on an end surface of cement mortar in the lower mold before the upper mold and the lower mold are closed.

In a preferable embodiment of the method for manufacturing a high-strength cement-based water permeable brick, in step S4, a lubricant is applied to each of the steel pipes before each of the steel pipes is inserted.

As a preferable scheme of the preparation method of the high-strength cement-based water permeable brick, the cross sections of the first through hole and the second through hole are rectangular.

As a preferable scheme of the preparation method of the high-strength cement-based water permeable brick, each side wall of the first through hole is provided with two first openings, and each first groove is correspondingly provided with two second openings.

As a preferable scheme of the preparation method of the high-strength cement-based water permeable brick, a plurality of protruding parts are further convexly arranged on the bottom surface of the lower die.

As a preferable scheme of the preparation method of the high-strength cement-based water permeable brick, a plurality of third grooves communicated with the protruding parts are concavely arranged on the bottom surface of the lower die, and the third grooves are communicated with the second grooves; and a cannula penetrating into the protruding part is inserted into each third groove.

In a preferable embodiment of the method for manufacturing a high-strength cement-based water permeable brick, in step S5, before the upper mold and the lower mold are demolded, the insert pipes are drawn out from the third grooves.

The invention has the beneficial effects that: the cement-based water permeable brick prepared by the method has higher performance strength, is structurally provided with the through hole, can be used for planting green plants, can form an inclined hole structure inside the cement-based water permeable brick, can form a water permeable groove structure on the periphery side, can be laid behind a parking lot, not only beautify the environment, but also can quickly infiltrate all rainwater in the heavy rain or the heavy rain into the ground by utilizing the water permeable groove and the inclined hole structure of the cement-based water permeable brick, and cannot cause water accumulation in the parking lot due to the heavy rain or the heavy rain.

Drawings

FIG. 1 is a schematic structural view of a mold in an embodiment of the present invention;

FIG. 2 is a side view of an upper die in a mold in accordance with an embodiment of the present invention;

FIG. 3 is a bottom view of a lower die in the mold in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a cement-based water permeable brick manufactured according to an embodiment of the present invention;

FIG. 5 is a side view of a cement-based water permeable brick prepared according to an embodiment of the present invention;

fig. 6 is a bottom view of the cement-based water permeable brick prepared according to the embodiment of the present invention.

In the figure: 100-upper die, 101-first through hole, 102-first groove, 103-first opening, 104-second opening, 200-lower die, 201-second through hole, 202-second groove, 203-protrusion, 204-third groove, 300-insertion tube, 10-brick body, 11-through hole, 12-water permeable groove, 13-inclined hole, 14-protrusion, 15-diversion groove and 20-filter screen.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The preparation method of the high-strength cement-based water permeable brick comprises the following steps:

and S1, preparing cement mortar, wherein the cement mortar is formed by stirring and mixing cement, sand, an admixture, a water reducing agent and water, and the preparation of the cement mortar is a common technical means in the field and is not repeated.

S2, preparing a mold, which includes an upper mold 100 and a lower mold 200, as shown in fig. 1 to 3, wherein the upper mold 100 and the lower mold 200 are closed to form an isosceles trapezoid table, the upper mold 100 is provided with a first through hole 101, and the lower mold 200 is provided with a second through hole 201 having an inner diameter equal to that of the first through hole 101 (the cross sections of the first through hole 101 and the second through hole 201 are rectangular, but may be circular or elliptical); each side wall of the upper die 100 is provided with a first groove 102 along the inclined direction thereof, and each side wall of the lower die 200 is provided with a second groove 202 having the same shape as the first groove 102 along the inclined direction thereof; after the upper die 100 and the lower die 200 are assembled, the first through holes 101 are opposite to the second through holes 201, and the first grooves 102 are respectively connected with the second grooves 202; at least one of the first through hole 101 and the second through hole 201 has four first openings 103 on a sidewall thereof, each first groove 102 or each second groove 202 has a second opening 104, and each first opening 103 and each corresponding second opening 104 are located on the same diagonal line.

And S3, injecting cement mortar into the upper die 100 and the lower die 200.

S4, the upper mold 100 and the lower mold 200 are clamped, and the four steel pipes are led from the second openings 104 to the corresponding first openings 103.

S5, after the cement mortar is solidified and molded in step S4, the steel pipes in step S4 are pulled out, and then the upper mold 100 and the lower mold 200 are demolded. In order to facilitate the extraction of the steel pipes, in step S4, a lubricant is applied to the steel pipes before the insertion of the steel pipes. The lubricant can be used as a lubricant for concrete pumped by a mixer.

As shown in fig. 4, a brick body 10 of the cement-based water permeable brick prepared by the above method in combination with a mold is in an isosceles trapezoid shape, the brick body 10 has through holes 11 penetrating through upper and lower surfaces, each side surface of the brick body 10 has water permeable grooves 12 penetrating through the upper and lower surfaces (the water permeable grooves 12 are formed by first grooves 102 and second grooves 202 on the mold), and a plurality of inclined holes 13 are provided inside the brick body 10 to respectively communicate the through holes 11 and the water permeable grooves 12 (the inclined holes 13 are formed by passing steel pipes through the second openings 104 to the corresponding first openings 103 and then drawing out the steel pipes). When the cement-based water permeable bricks are laid on the parking lot, the cement-based water permeable bricks are adjacently spliced according to a positive-negative sequence, namely, the cement-based water permeable bricks are laid according to a sequence that one top surface faces downwards and the other top surface faces downwards. After paving, the permeable grooves 12 between two adjacent brick bodies 10 are opposite, and rainwater sprayed on the brick bodies 10 can quickly permeate underground along the gap between the two opposite permeable grooves 12; the through holes 11 in the brick bodies 10 can be used for planting green plants such as lawns and the like, and can also be used for infiltrating rainwater sprayed in the green plants into the ground from the bottoms of the through holes 11; in addition, rainwater entering the through hole 11 can be further infiltrated to the ground through the inclined hole 11 communicating the water permeable tank 12 and the through hole 11, and the water infiltration efficiency is extremely high. It is thus clear that this cement base brick that permeates water that prepares can go up intensity higher (cement mortar preparation), structural through-hole 11 that has, can plant green planting, can also permeate water the inside inclined hole 13 structure that forms of brick at the cement base, the periphery side forms the groove 12 structure of permeating water, lay in parking terrace after, can not only beautify the environment, can also utilize the groove and the inclined hole structure of permeating water of self, will be big to the underground of permeating water fast of all rainwater of torrential rain, can not cause the parking area because heavy rain or torrential rain and ponding.

In step S4, before the upper mold 100 and the lower mold 200 are closed, the strainer 20 is placed on the end surface of the cement mortar in the lower mold 200. Thus, the formed cement-based water permeable brick is provided with a filter screen 20 at the bottom in the through hole 11, as shown in fig. 5, the filter screen 20 can support the root soil system of green plants and can prevent the root system from going deep into the ground to a certain extent. In the present invention, the filter net 20 may be a wire mesh.

In a preferred embodiment of the present invention, two first openings 103 are provided on each sidewall of the first through hole 101, and two second openings 104 are provided on each first groove 102. In this way, communication can be established between each side of the through hole 11 of the brick body 10 and the water permeable tank 12 through two inclined holes 13. Two inclined holes 13 are used for communicating the water permeable groove 12 with the through hole 11, and the water permeable efficiency is improved.

Furthermore, the present invention employs a mold in which a plurality of protrusions 203 are protruded on the bottom surface of the lower mold 200. In this manner, in the preparation of the cement-based water permeable brick, a plurality of protrusions 14 may be formed on the lower surface of the brick body 10, as shown in fig. 5 and 6. The arrangement of the protrusions 14 facilitates better gripping with a base layer during laying, and when the lower surface of the brick body 10 is laid upwards, the protrusions 14 can increase the friction force between a person contacting with the brick body 10, so that the anti-skid effect is better.

In addition, a plurality of third grooves 204 communicated with the protrusions 203 are concavely arranged on the bottom surface of the lower die 200, and the third grooves 204 are communicated with the second grooves 202; a cannula 300 inserted into the protrusion 203 is inserted into each third groove 204. Therefore, in step S5, before the upper mold 100 is released from the lower mold 200, the respective insert pins 300 are extracted from the respective third recesses 204. Similarly, the cannula 300 is coated with a lubricant. In this way, the prepared cement-based water permeable brick can form the diversion trench 15 penetrating through each protrusion 14 on the lower surface of the brick body 10, as shown in fig. 6, and the diversion trench 15 is communicated with each water permeable trench 12. The arrangement of the diversion trench 15 can lead rainwater sprinkled on the lower surface of the brick body 10 into the water permeable trench 12, so as to avoid water accumulation on the lower surface of the brick body 10 (when the lower surface of the brick body 10 is laid upwards).

In conclusion, the water permeable brick prepared by the preparation method of the high-strength cement-based water permeable brick has high permeability and is suitable for parking lots.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A preparation method of a high-strength cement-based water permeable brick is characterized by comprising the following steps:

s1, preparing cement mortar;

s2, preparing a die, wherein the die comprises an upper die (100) and a lower die (200), the upper die (100) and the lower die (200) are matched and then form an isosceles trapezoid table, the upper die (100) is provided with a first through hole (101), and the lower die (200) is provided with a second through hole (201) with the same inner diameter as the first through hole (101); each side wall of the upper die (100) is provided with a first groove (102) along the inclination direction, and each side wall of the lower die (200) is provided with a second groove (202) with the same shape as the first groove (102) along the inclination direction; after the upper die (100) and the lower die (200) are assembled, the first through holes (101) are opposite to the second through holes (201), and the first grooves (102) are respectively connected with the second grooves (202); at least four first openings (103) are arranged on the side wall of one of the first through hole (101) and the second through hole (201), each first groove (102) or each second groove (202) is provided with a second opening (104), and each first opening (103) and each corresponding second opening (104) are positioned on the same inclined line;

s3, injecting cement mortar into the upper die (100) and the lower die (200);

s4, the upper die (100) and the lower die (200) are matched, and four steel pipes are used for leading the upper die and the lower die to the corresponding first openings (103) from the second openings (104);

s5, after the cement mortar in the step S4 is solidified and formed, the steel pipes in the step S4 are drawn out, and then the upper die (100) and the lower die (200) are demolded.

2. The method for preparing high-strength cement-based water permeable bricks according to claim 1, wherein a filter screen (20) is placed on the end surface of cement mortar in the lower mold (200) before the upper mold (100) and the lower mold (200) are closed in step S4.

3. The method of claim 1, wherein in step S4, a lubricant is applied to each of the steel pipes before inserting the steel pipes.

4. The method for preparing the high-strength cement-based water permeable brick according to claim 1, wherein the cross sections of the first through hole (101) and the second through hole (201) are rectangular.

5. The method for preparing the high-strength cement-based water permeable brick according to claim 4, wherein each side wall of the first through hole (101) is provided with two first openings (103), and each first groove (102) is correspondingly provided with two second openings (104).

6. The method for preparing the high-strength cement-based water permeable brick according to claim 1, wherein a plurality of protrusions (203) are further protruded on the bottom surface of the lower mold (200).

7. The method for preparing the high-strength cement-based water permeable brick according to claim 6, wherein a plurality of third grooves (204) communicated with the protrusions (203) are concavely formed on the bottom surface of the lower die (200), and the third grooves (204) are communicated with the second grooves (202); a cannula (300) penetrating into the protrusion part (203) is inserted into each third groove (204).

8. The method for preparing the high-strength cement-based water permeable brick according to claim 7, wherein in step S5, before the upper mold (100) and the lower mold (200) are demolded, the insertion pipes (300) are extracted from the third grooves (204).