CN113638279A - Building engineering environment-friendly water permeable brick and preparation method thereof - Google Patents
Building engineering environment-friendly water permeable brick and preparation method thereof Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C5/00—Pavings made of prefabricated single units
- E01C5/04—Pavings made of prefabricated single units made of bricks
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
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- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
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Abstract
The invention discloses an environment-friendly water permeable brick for construction engineering, which comprises water permeable bricks, wherein the upper surfaces of the water permeable bricks are provided with a transverse water tank and a vertical water tank, the transverse water tank and the vertical water tank are both provided with flow guide holes, dovetail grooves are symmetrically arranged in the middle parts of two sides of each water permeable brick, protruding parts are formed on two sides of each water permeable brick, and two adjacent protruding parts are arranged in parallel and matched with a dovetail groove structure; the front end of the permeable brick is provided with an arc-shaped bulge, and the rear end of the permeable brick is provided with an arc-shaped groove matched with the arc-shaped bulge. Through improving the structure and the raw materials of the permeable brick, the prepared permeable brick has high strength, good water permeability and more environmental protection.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an environment-friendly water permeable brick for constructional engineering and a preparation method thereof.
Background
In the urban construction process, the floor tiles of streets and sidewalks are paved more and more in consideration of the drainage, water permeability, green, environmental protection and other factors, so that the water permeable bricks are rapidly developed in use, on one hand, the strength and the water permeability of the brick body structure are considered, and on the other hand, the green environmental protection is also emphasized by the material selection of the water permeable bricks. At present, the water permeable brick structure of urban streets and sidewalks mainly considers the arrangement of drain holes to prevent rainwater from gathering; the brick body is made of concrete water permeable bricks, ceramic water permeable bricks, sand-based water permeable bricks and the like, and the water permeable bricks are prepared by adopting industrial waste residues such as sludge, fly ash and the like in the prior art, so that comprehensive utilization of resources is realized.
Chinese patent document (202010957733. X) discloses a water permeable brick of tenon-and-mortise structure mixed fiber recycled concrete, which comprises a water permeable brick body, wherein the water permeable brick body is of a cuboid structure, a tenon is arranged on the front end surface in the length direction, the tenon is of a cross-shaped block structure and is integrally formed with the water permeable brick body, the rear end surface of the water permeable brick body is provided with a mortise in a cross groove shape which is in mortise joint with an adjacent tenon from back to front, the side surface of the water permeable brick body adjacent to the tenon is externally provided with a connecting lug which is integrally formed with the water permeable brick body, a rectangular groove body which is matched with the connecting lug is inwards arranged at the corresponding position on the opposite side of the water permeable brick body, the water permeable brick bodies in the patent can be spliced through the adjacent tenon and mortise, the tenon-and mortise structure can improve the bonding strength between the adjacent water permeable bricks, not only ensures the stable combination of the brick bodies, but also can enable the paved road surface to rapidly permeate water, possesses the characteristics of good effect of permeating water, stable in structure to solve the problem that the brick that permeates water leads to because of not hard up. However, when the connection is actually laid, the bonding operation can be performed only from the side, which affects the working efficiency. Chinese patent document (application No. 201811388189.0) discloses a high-strength wear-resistant water permeable brick which is prepared from the following raw materials: 64-66 parts of casting used sand, 37-39 parts of waste ceramic, 23-25 parts of volcanic rock, 15-17 parts of zeolite powder, 6-8 parts of sepiolite powder, 5-7 parts of cement and 4-6 parts of modified yellow daub; the high-strength wear-resistant water permeable brick provided by the invention has the advantages that the raw material source is wide, the price is low, the preparation is simple, the obtained water permeable brick has high strength and strong wear resistance, the phenomena of damage and slag falling on the surface of the water permeable brick are avoided, and the service life is obviously prolonged; crushing the waste ceramic, adding a hydrochloric acid solution for soaking, and then heating at high temperature to increase the porous structure of the waste ceramic and improve the water permeability and water retention of the water permeable brick; the crushed particles of the volcanic rock are large, the integrity of the porous structure of the volcanic rock can be kept, the wear resistance of the water permeable brick can be improved, and the crushing phenomenon after the volcanic rock is used for a period of time is avoided. According to the method, a porous structure is formed by crushed particles of volcanic rock, and the water permeable holes formed by the hole forming method are not high in connectivity, and the hole walls are easy to collapse, so that the strength is influenced.
Disclosure of Invention
In view of the above, the invention aims to provide an environment-friendly water permeable brick for building engineering, which is prepared by improving the structure and raw materials of a water permeable package, and has the advantages of high strength, good water permeability and environmental protection.
In order to achieve the purpose, the invention adopts the following technical scheme:
the environment-friendly water permeable brick for the building engineering comprises water permeable bricks, wherein a transverse water tank and a vertical water tank are arranged on the upper surfaces of the water permeable bricks, flow guide holes are formed in the transverse water tank and the vertical water tank, dovetail grooves are symmetrically formed in the middle parts of two sides of each water permeable brick, protruding parts are formed on two sides of each water permeable brick, and two adjacent protruding parts are arranged in parallel and matched with a dovetail groove structure; the front end of the permeable brick is provided with an arc-shaped bulge, and the rear end of the permeable brick is provided with an arc-shaped groove matched with the arc-shaped bulge.
Further, the lower surface of the permeable brick is provided with a transverse groove and a vertical groove, and the cross sections of the transverse groove and the vertical groove are trapezoidal.
Furthermore, the diversion holes in the transverse water tank are communicated with the transverse grooves, and the diversion holes in the vertical water tank are communicated with the vertical grooves through the diversion grooves.
Further, the water permeable brick is prepared from the following raw materials in parts by weight: 30-40 parts of blast furnace slag, 15-20 parts of waste porcelain powder, 8-10 parts of pore-forming agent, 4-5 parts of phenolic resin, 8-12 parts of coal gangue and 15-20 parts of attapulgite clay.
Further, the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 20-30wt% of suspension, then adding 2-3wt% of cetyl trimethyl ammonium bromide, stirring and reacting for 1-2h, filtering, drying and grinding into powder with the particle size of less than or equal to 0.1 mm.
Further, the grain sizes of the blast furnace slag are respectively 1: 1: 2.
further, the pore-forming agent is polypropylene fiber, calcium carbonate and starch in a weight ratio of 1-2: 1: 0.6, and fully mixing.
Further, the length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 12-18% of water, uniformly stirring, and performing compression molding under 10-12MPa to obtain a green body; firing the green body at 1000-1200 ℃ for 2-3h, and cooling to room temperature along with the furnace to obtain the product.
Further, the specific firing process comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1000-.
The invention has the beneficial effects that:
1. the invention discloses an environment-friendly water permeable brick for construction engineering, wherein a transverse water tank and a vertical water tank are arranged on the upper surface of the water permeable brick, and flow guide holes are formed in the water permeable brick; the middle part of the lower surface is provided with a transverse groove and a vertical groove, the cross sections of the transverse groove and the vertical groove are both trapezoidal, wherein a diversion hole in the transverse water tank is communicated with the transverse groove, and a diversion hole in the vertical water tank is communicated with the vertical groove through a diversion groove, so that water on the ground can enter the transverse groove and the vertical groove through the transverse water tank, the vertical water tank and the diversion hole and further enter a roadside drainage pipeline for drainage; in addition, the two ends of the lower surface of the water permeable brick are provided with the transverse communication grooves, so that the transverse grooves, the vertical grooves and the transverse communication grooves can form drainage channels which are mutually staggered at the bottoms of the water permeable bricks, and drainage is smoother.
2. Dovetail grooves are symmetrically formed in the middle of two sides of the permeable brick, protruding parts are formed on two sides of the permeable brick, and two adjacent protruding parts are arranged in parallel and matched with the dovetail grooves in structure; the front end of the permeable brick is provided with an arc-shaped bulge, and the rear end of the permeable brick is provided with an arc-shaped groove matched with the arc-shaped bulge. The combined structure can ensure that the water permeable bricks at the front, back, left and right sides are firmly attached, has high stability and prevents movement and tilting.
3. The brick that permeates water in this application adopts blast furnace slay and useless porcelain powder to fire through mixing high temperature behind the suppression and form to carry out the classification to the particle diameter of raw materials, in order to increase the intensity after firing, and keep certain porosity.
4. Because a large amount of silicon dioxide, aluminum oxide, magnesium oxide, sodium oxide and other components are added into the blast furnace slag and the waste porcelain powder, a low eutectic liquid phase can be formed at high temperature, large particles in the raw materials are bonded by the high-temperature liquid phase to form a framework, and coarse particles and fine particles are slowly bonded, so that a certain gap can be formed in a blank body. In addition, a pore-forming agent is added into the blank, wherein the pore-forming agent is a mixture of polypropylene fiber, calcium carbonate and starch, the length of the polypropylene fiber is 1-3mm, the polypropylene fiber is uniformly dispersed in the blank, and intercommunicating pores are easily formed after calcination so as to increase the water permeability effect; in addition, calcium carbonate and starch are added, the polypropylene fiber and the calcium carbonate and the starch are fully mixed, and the calcium carbonate powder and the starch are adsorbed on the surface of the polypropylene fiber.
At the temperature of about 200 ℃ and 300 ℃ for calcination, the gas generated by calcining the starch is slowly discharged from the green body, so that the early porosity of the brick body is increased; with the increase of the temperature, the polypropylene fiber also begins to be slowly decomposed, and the pore diameter and the length of the pores are further increased; then the calcium carbonate starts to decompose and foam in the blank body, and the pore diameter structure formed by the polypropylene and the starch is further expanded; in addition, calcium oxide of the calcium carbonate can form calcium silicate with silicon oxide in a liquid phase in the decomposition process of the calcium carbonate, and the strength of pore walls of the pores is further increased. In addition, the starch has higher viscosity, and can be used for increasing the cohesive force of powder under the synergistic action with clay in the process of mixing the raw materials, so that the strength of the blank body is enhanced.
5. In the firing process, the rapid temperature rise in the early stage can fully and completely evaporate the water in the green body, then the temperature rise speed is slowed to 600 ℃, and the crystal water and organic matters in the green body, including starch and polypropylene fiber, are slowly combusted to form a microporous structure; and then heating, on one hand, liquid phase also slowly appears in the blank, and in addition, calcium carbonate in the pore-forming agent is quickly decomposed and foamed, so that a new glass body structure is formed while pores are formed, and the strength can be ensured under the condition of increasing the water permeability.
6. And a small amount of phenolic resin is added, so that the surface of the aggregate can be fully infiltrated, and the bonding strength of the aggregate is enhanced.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of example 1;
FIG. 3 is a schematic diagram of an embodiment of example 1.
In the figure: 1-permeable brick block, 2-transverse water tank, 3-diversion hole, 4-dovetail groove, 5-bulge, 6-arc bulge, 7-arc groove, 8-transverse groove, 9-vertical water tank, 10-vertical groove, 11-drainage groove and 12-transverse communication groove.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example 1
As shown in fig. 1-2, the environment-friendly water permeable brick for the construction engineering comprises a water permeable brick 1, wherein a transverse water tank 2 and a vertical water tank 9 are arranged on the upper surface of the water permeable brick 1, and guide holes 3 are formed in the transverse water tank 2 and the vertical water tank 9 and used for discharging accumulated water on a road surface; and the horizontal water tank 2 and the vertical water tank 9 form an anti-skid structure on the surface of the permeable brick, so that the pedestrian can be prevented from falling down.
The middle part of the lower surface of the permeable brick 1 is provided with a transverse groove 8 and a vertical groove 10, the cross sections of the transverse groove 8 and the vertical groove 10 are both trapezoidal, and the lower surface of the permeable brick has small area and can be firmly fixed with sand stones and the like below; in addition, the diversion holes 3 in the transverse water tank 2 are communicated with the transverse grooves 8, and the diversion holes 3 in the vertical water tank 9 are communicated with the vertical grooves 10 through the diversion grooves 11. And the two ends of the lower surface of the permeable brick 1 are provided with the transverse communication grooves 12 communicated with the vertical grooves 10, so that drainage channels with the transverse grooves 8, the vertical grooves 10 and the transverse communication grooves 12 staggered with each other can be formed at the bottom of the permeable brick, and water can be drained as soon as possible.
The utility model provides a structure of laying of brick permeates water is shown in figure 3, and the 5 card of bellying of two vertical adjacent bricks of permeating water go into the dovetail 4 of horizontal adjacent brick of permeating water, and adjacent brick of permeating water laminating more can be ensured to this kind of structure, is difficult to not hard up, the perk, can not lead to splashing. In the aspect of drainage, rainwater on the road surface enters the staggered drainage channels formed by the transverse grooves 8, the vertical grooves 10 and the transverse communication grooves 12 through the transverse water grooves 2, the vertical water grooves 9 and the diversion holes 3, so that the rainwater is drained, and the drainage is smoother.
For the drainage effect and the life of increasing this application, the water brick 1 of this application is made by the raw materials of following parts by weight: 30 parts of blast furnace slag, 15 parts of waste ceramic powder, 8 parts of pore-forming agent, 4 parts of phenolic resin, 8 parts of coal gangue and 15 parts of attapulgite clay.
Wherein the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the calcined attapulgite clay in water to form 20wt% of suspension, then adding hexadecyl trimethyl ammonium bromide accounting for 2wt% of the weight of the attapulgite clay, stirring and reacting for 1-2h, and drying and grinding the mixture into powder with the particle size of less than or equal to 0.1mm after suction filtration.
The grain sizes of the blast furnace slag are respectively 1: 1: 2.
the pore-forming agent is polypropylene fiber, calcium carbonate and starch according to the weight ratio of 1: 1: 0.6 is obtained by fully stirring and mixing.
The length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder (ceramic waste) is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 12wt% of water, uniformly stirring, and performing compression molding under 10MPa to obtain a green body; firing the green body at 1000 ℃ for 3h, and cooling to room temperature along with the furnace to obtain the product.
Example 2
The construction of the water permeable brick of example 2 is the same as that of example 1 except that:
the water permeable brick is prepared from the following raw materials in parts by weight: 32 parts of blast furnace slag, 16 parts of waste ceramic powder, 8.5 parts of pore-forming agent, 4.2 parts of phenolic resin, 9 parts of coal gangue and 16 parts of attapulgite clay.
Wherein the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 22wt% of suspension, then adding 2.2wt% of hexadecyl trimethyl ammonium bromide, stirring and reacting for 1-2h, filtering, drying and grinding the mixture into powder with the particle size of less than or equal to 0.1 mm.
The grain sizes of the blast furnace slag are respectively 1: 1: 2.
the pore-forming agent is polypropylene fiber, calcium carbonate and starch according to the weight ratio of 1.2: 1: 0.6, and mixing.
The length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 13wt% of water, uniformly stirring, and performing compression molding under 10MPa to obtain a green body; the specific firing process of the green body comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1100 deg.C at a rate of 6 deg.C/min, maintaining for 1h, and cooling to room temperature to obtain the final product.
Example 3
The construction of the water permeable brick of example 3 is the same as that of example 1 except that:
the water permeable brick is prepared from the following raw materials in parts by weight: 35 parts of blast furnace slag, 18 parts of waste porcelain powder, 9 parts of pore-forming agent, 4.5 parts of phenolic resin, 10 parts of coal gangue and 18 parts of attapulgite clay.
Wherein the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 25wt% of suspension, then adding 2.5wt% of hexadecyl trimethyl ammonium bromide, stirring and reacting for 1-2h, filtering, drying and grinding the mixture into powder with the particle size of less than or equal to 0.1 mm.
The grain sizes of the blast furnace slag are respectively 1: 1: 2.
the pore-forming agent is polypropylene fiber, calcium carbonate and starch according to the weight ratio of 1.5: 1: 0.6, and mixing.
The length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 13% of water, uniformly stirring, and pressing under 11MPa to form a green body; the specific firing process of the green body comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1150 deg.C at a rate of 6 deg.C/min, maintaining for 1.5h, and cooling to room temperature to obtain the final product.
Example 4
The construction of the water permeable brick of example 4 is the same as that of example 1 except that:
the water permeable brick 1 is prepared from the following raw materials in parts by weight: 38 parts of blast furnace slag, 19 parts of waste porcelain powder, 9.5 parts of pore-forming agent, 4.5 parts of phenolic resin, 11 parts of coal gangue and 19 parts of attapulgite clay.
Wherein the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 28wt% of suspension, then adding 2.8wt% of hexadecyl trimethyl ammonium bromide, stirring and reacting for 1-2h, filtering, drying and grinding the mixture into powder with the particle size of less than or equal to 0.1 mm.
The grain sizes of the blast furnace slag are respectively 1: 1: 2.
the pore-forming agent is polypropylene fiber, calcium carbonate and starch according to the weight ratio of 1.8: 1: 0.6, and mixing.
The length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 15% of water, uniformly stirring, and performing compression molding under 12MPa to obtain a green body; the specific firing process of the green body comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1200 ℃ at the speed of 6 ℃/min, preserving the heat for 1h, and cooling to room temperature along with the furnace to obtain the product.
Example 5
The construction of the water permeable brick of example 5 is the same as that of example 1 except that:
the water permeable brick is prepared from the following raw materials in parts by weight: 40 parts of blast furnace slag, 20 parts of waste porcelain powder, 10 parts of pore-forming agent, 5 parts of phenolic resin, 12 parts of coal gangue and 20 parts of attapulgite clay.
Wherein the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 30wt% of suspension, then adding 3wt% of hexadecyl trimethyl ammonium bromide, stirring and reacting for 1-2h, and drying and grinding the mixture into powder with the particle size of less than or equal to 0.1mm after suction filtration.
The grain sizes of the blast furnace slag are respectively 1: 1: 2.
the pore-forming agent is polypropylene fiber, calcium carbonate and starch according to the weight ratio of 2: 1: 0.6, and mixing.
The length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
A preparation method of an environment-friendly water permeable brick for construction engineering comprises the following steps:
fully mixing the raw materials, adding 18% of water, uniformly stirring, and performing compression molding under 12MPa to obtain a green body; the specific firing process of the green body comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1150 deg.C at a rate of 6 deg.C/min, maintaining for 1.5h, and cooling to room temperature to obtain the final product.
Example 6
Example 6 is essentially the same as example 1, except that: the specific firing process of the green body comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1000 deg.C at a rate of 6 deg.C/min, maintaining for 1h, and cooling to room temperature to obtain the final product.
Performance detection
The water permeable bricks of examples 1 to 5 were prepared into a 100mm by 40mm sample and a 75mm by 40mm sample, respectively, and their compressive strength and water permeability coefficient were measured, and the results are shown in Table 1.
TABLE 1 Performance test results
As can be seen by combining the table 1, the compression strength of the water permeable brick prepared by the blast furnace slag, the waste porcelain powder and the coal gangue is 33-36.1MPa, and the water permeability coefficient is 3.08-3.51 x 10-2cm/s, high strength and good water permeability. Example 6 differs from example 1 in that the firing process is different, the water permeability coefficient is increased, the strength is higher, and the adjustment of the temperature rise speed and the holding time in the firing process can correspondingly increase the water permeability.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a building engineering environmental protection brick that permeates water which characterized in that: the water permeable brick comprises a water permeable brick (1), wherein a transverse water tank (2) and a vertical water tank (9) are arranged on the upper surface of the water permeable brick (1), flow guide holes (3) are formed in the transverse water tank (2) and the vertical water tank (9), dovetail grooves (4) are symmetrically formed in the middle of two sides of the water permeable brick (1), protruding parts (5) are formed on two sides of the water permeable brick (1), and two adjacent protruding parts (5) are arranged in parallel and are structurally matched with the dovetail grooves (4); the front end of the permeable brick (1) is provided with an arc-shaped bulge (6), and the rear end is provided with an arc-shaped groove (7) matched with the front end.
2. The environment-friendly water permeable brick for construction engineering according to claim 1, characterized in that: the lower surface of the permeable brick (1) is provided with a transverse groove (8) and a vertical groove (10), and the cross sections of the transverse groove (8) and the vertical groove (10) are trapezoidal.
3. The environmental-friendly water permeable brick for construction engineering according to claim 2, characterized in that: the diversion holes (3) in the transverse water tank (2) are communicated with the transverse grooves (8), and the diversion holes (3) in the vertical water tank (9) are communicated with the vertical grooves (10) through diversion grooves (11).
4. The environment-friendly water permeable brick for construction engineering according to claim 1, characterized in that: the water permeable brick (1) is prepared from the following raw materials in parts by weight: 30-40 parts of blast furnace slag, 15-20 parts of waste porcelain powder, 8-10 parts of pore-forming agent, 4-5 parts of phenolic resin, 8-12 parts of coal gangue and 15-20 parts of attapulgite clay.
5. The environmental-friendly water permeable brick for construction engineering according to claim 4, characterized in that: the attapulgite clay is subjected to surface modification pretreatment, and the pretreatment process comprises the following steps: calcining the attapulgite clay for 3h at 500 ℃, then dispersing the attapulgite clay in water to form 20-30wt% of suspension, then adding 2-3wt% of cetyl trimethyl ammonium bromide, stirring and reacting for 1-2h, filtering, drying and grinding into powder with the particle size of less than or equal to 0.1 mm.
6. The environmental-friendly water permeable brick for construction engineering according to claim 4, characterized in that: the grain size of the blast furnace slag is 0.3-0.5mm, 0.5-0.8mm and the weight ratio of 0.8-1.5mm is respectively 1: 1: 2.
7. the environmental-friendly water permeable brick for construction engineering according to claim 4, characterized in that: the pore-forming agent is prepared from polypropylene fibers, calcium carbonate and starch in a weight ratio of 1-2: 1: 0.6, and mixing.
8. The environmental-friendly water permeable brick for construction engineering according to claim 7, which is characterized in that: the length of the polypropylene fiber is 1-3mm, the particle size of the waste porcelain powder is 1-1.5mm, the particle size of the coal gangue is 1-2mm, and the particle size of the blast furnace slag is 0.1-0.3 mm.
9. The preparation method of the building engineering environment-friendly water permeable brick of claim 4 is characterized by comprising the following steps:
fully mixing the raw materials, adding 12-18% of water, uniformly stirring, and performing compression molding under 10-12MPa to obtain a green body; firing the green body at 1000-1200 ℃ for 2-3h, and cooling to room temperature along with the furnace to obtain the product.
10. The preparation method of the building engineering environment-friendly water permeable brick according to claim 9, characterized in that: the specific firing process comprises the following steps: heating to 180 deg.C at a rate of 10 deg.C/min, and maintaining for 30 min; then heating to 600 ℃ at the speed of 5 ℃/min, and preserving heat for 1 h; heating to 1000-.
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| CN117127557A (en) * | 2023-10-08 | 2023-11-28 | 湖北宇声环保科技有限公司 | Customizable type interlocking ecological slope protection brick and application thereof |
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