CN111056814A - Water permeable brick and preparation method thereof - Google Patents
Water permeable brick and preparation method thereof Download PDFInfo
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- CN111056814A CN111056814A CN201911150737.0A CN201911150737A CN111056814A CN 111056814 A CN111056814 A CN 111056814A CN 201911150737 A CN201911150737 A CN 201911150737A CN 111056814 A CN111056814 A CN 111056814A
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- permeable brick
- water permeable
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00612—Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The application discloses a water permeable brick and a preparation method thereof, and relates to the technical field of building materials. Wherein, the water permeable brick comprises a bottom layer and a surface layer; the bottom layer comprises the following components in percentage by mass: 10-50% of ceramsite, 0.1-1% of intergranular reinforcing agent, 39-70% of bottom layer aggregate and 10-20% of cement; the surface layer comprises the following components in percentage by mass: 0.1-1% of inter-granular reinforcing agent, 40-90% of surface layer aggregate, 8-50% of cement and 0.1-1% of coloring material. The application provides a technical scheme aims at reducing the weight of the brick that permeates water now to and improve the water permeability and the gas permeability of the brick that permeate water now.
Description
Technical Field
The application belongs to the technical field of building materials, and particularly relates to a water permeable brick and a preparation method thereof.
Background
Along with the continuous deepening of the progress of sponge cities in China, city water seepage road construction is more and more emphasized in various regions, and various water permeable paving bricks are also produced smoothly. The brick that permeates water promotes the rainwater infiltration passageway in order to solve the general sclerosis problem in city earth's surface, builds high-quality natural living environment, maintains the ecological balance of city rainfall flood stagnant retaining and the novel building materials of green who comes birth, because of possess stronger function of permeating water and obtain rapid development and application in the reality. The water permeable function is embodied by the porosity and the connectivity of the brick material and the enough bearing capacity.
The water permeable brick has the following characteristics: firstly, the water-permeable and air-permeable composite material has good water permeability and air permeability, can enable rainwater to rapidly permeate into the ground, replenishes soil water and underground water, maintains soil humidity, and improves survival conditions of urban ground plants and soil microorganisms. And secondly, the water and heat can be absorbed, the temperature and the humidity of local space on the earth surface are adjusted, and the urban microclimate and urban heat island effect are adjusted. Thirdly, the pressure of urban drainage and flood control can be reduced, and the method has good effect on preventing pollution of public water areas and underground water pollution. Fourthly, no water accumulation after rain and no skid after snow can be realized, thereby facilitating the trip of citizens. Fifthly, the surface is micro concave-convex, so that the reflection of light on the road surface is prevented, the noise generated when the vehicle runs is absorbed, and the passing comfort and safety of the vehicle can be improved. Sixth, the permeable brick has rich colors, is natural and simple, can be perfectly combined with the surrounding environment, and increases the artistic feeling of the city.
The permeable bricks in the current market mainly comprise ceramic permeable bricks, concrete permeable bricks and resin bonded sand-based permeable bricks. The ceramic water permeable brick needs to exploit a large amount of ceramic raw materials to destroy the ecological environment, and the water permeable brick generally needs to be sintered at a high temperature of more than 1000 ℃, so that the process is complex, the cost is high, and the weight is heavy; the concrete permeable brick permeates water through large holes among aggregates, has unattractive surface and is easy to block; the resin bonded sand-based water permeable brick takes hydrophilic thermosetting resin as a bonding agent, but the resin is easy to age under the action of light and heat, so that the durability of the water permeable brick is obviously reduced, the service life is shortened, and the cost of the resin is higher.
Disclosure of Invention
The application aims to provide a water permeable brick and a preparation method thereof, and aims to reduce the weight of the existing water permeable brick and improve the water permeability and air permeability of the existing water permeable brick.
In order to achieve the technical effects, the application provides, in a first aspect, a water permeable brick, which includes a bottom layer and a surface layer; the bottom layer comprises the following components in percentage by mass: 10-50% of ceramsite, 0.1-1% of intergranular reinforcing agent, 39-70% of bottom layer aggregate and 10-20% of cement; the surface layer comprises the following components in percentage by mass: 0.1-1% of inter-granular reinforcing agent, 40-90% of surface layer aggregate, 8-50% of cement and 0.1-1% of coloring material.
Optionally, the particle size of the ceramsite is 3-8mm, the apparent density of the ceramsite is 670-845 kg per cubic meter, the bulk density of the ceramsite is 561-809 kg per cubic meter, and the bulk porosity of the ceramsite is 4% -16%.
Optionally, the raw material of the ceramsite comprises residual soil generated by performing harmless treatment on river and lake sludge.
Optionally, the intergranular reinforcing agent is an ecological pervious concrete reinforcing agent.
Optionally, the particle size of the bottom layer aggregate is 5-10 mm; the bottom aggregate is pea stone.
Optionally, the grain size of the surface layer aggregate is 2-6 mm; the surface layer aggregate is quartz sand.
Optionally, the thickness of the bottom layer of the water permeable brick is 55-60mm, and the thickness of the surface layer of the water permeable brick is 5-7 mm.
The second aspect of the present application provides a method for preparing a water permeable brick, including the water permeable brick provided by the first aspect of the present application, the method for preparing the water permeable brick includes the following steps:
weighing ceramsite, an intergranular reinforcing agent, bottom aggregate and cement according to the mass percentage of the bottom components, adding water accounting for 50-70% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing the intergranular reinforcing agent, the surface layer aggregate, the cement and the coloring material according to the mass percent of the surface layer components, adding water accounting for 40-60% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and pressing the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
Optionally, the preparation method of the water permeable brick further comprises: and (5) curing the naturally dried permeable brick, namely watering and permeating twice every day for 7 days.
Therefore, the water permeable brick provided by the application has the advantages that the coloring material is added into the surface layer component, so that the water permeable brick is rich in color; the ceramsite is used as a bottom layer component of the water permeable brick, the ceramsite forms a porous brick with a framework-gap structure under the hardening action of cement, an inter-particle reinforcing agent with a specific proportion is added to participate in the hydration reaction of the cement to form a high polymer cement hydrated body, the bonding force between the ceramsite and aggregate particles is increased, the inter-particle reinforcing agent has good permeability, the inter-particle reinforcing agent is subjected to chemical reaction with free calcium in the water permeable brick component through full penetration to generate a crystalline colloid to fill the surface gap of the water permeable brick, and therefore the strength and the wear resistance of the surface layer of the water permeable brick are improved. The ceramsite with a specific proportion is used as the bottom layer component of the water permeable brick and acts together with the inter-granular reinforcing agent with a specific proportion, so that the weight of the water permeable brick is reduced, the water permeability and the air permeability of the water permeable brick are improved, and the strength of the water permeable brick is improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The parts by weight hereinafter may refer to unit amounts conventional in the art, such as kilograms, grams, and the like, and may also refer to ratios between the components, such as mass or weight ratios, and the like.
The embodiment of the application provides a water permeable brick, which comprises a bottom layer and a surface layer; the bottom layer comprises the following components in percentage by mass: 10-50% of ceramsite, 0.1-1% of intergranular reinforcing agent, 39-70% of bottom layer aggregate and 10-20% of cement; the surface layer comprises the following components in percentage by mass: 0.1-1% of inter-granular reinforcing agent, 40-90% of surface layer aggregate, 8-50% of cement and 0.1-1% of coloring material.
Optionally, the particle size of the ceramsite is 3-8mm, the apparent density of the ceramsite is 670-845 kg per cubic meter, the bulk density of the ceramsite is 561-809 kg per cubic meter, and the bulk porosity of the ceramsite is 4% -16%.
Optionally, the raw material of the ceramsite comprises residual soil generated by performing harmless treatment on river and lake sludge.
In one embodiment, the ceramsite is a residual soil ceramsite, residual soil generated by harmless treatment of river and lake sludge is used as a part of raw materials, and the ceramsite is prepared by a carbonization ceramic preparation process, so that harmless treatment and resource recycling of solid waste sludge are realized. The ceramsite is used as a bottom raw material of the water permeable brick to replace crushed stone of the bottom raw material of the traditional water permeable brick, so that the weight and the production cost of the water permeable brick are reduced, and the water permeability and the air permeability of the water permeable brick are improved.
In an application scene, the ceramsite is prepared by taking residual soil generated by innocent treatment of river and lake sludge as a raw material and adopting a carbonization ceramic preparation process; the ceramsite is subjected to screening test detection, and the detection result is shown in table 1.
TABLE 1
Standard acidity detection is carried out on the ceramsite produced by carbonizing the residual soil to prepare ceramics, the test result of the heavy metal leaching toxicity of the ceramsite is shown in table 2, and the concentrations of the heavy metals leached by the ceramsite are far lower than the III-class water body standard in the existing national standard GB 3838-2002; the method shows that in the process of preparing the pottery by carbonizing the residual soil, all heavy metals in the residual soil and silicate form a glassy state structure, and the heavy metals are fixed in the glassy state structure and are not easy to be dissolved out by acid to pollute the environment. By analyzing the test result of the heavy metal leaching toxicity of the ceramsite, the water permeable brick prepared from the ceramsite can be determined to be safe to the environment under the acid rain condition; therefore, the water permeable brick prepared from the ceramsite can be used as a material for building and municipal engineering, and does not cause harm to environmental safety.
TABLE 2
Optionally, the intergranular reinforcing agent is an ecological pervious concrete reinforcing agent.
In one embodiment, the ecological pervious concrete reinforcing agent is an SR ecological concrete inter-granular reinforcing agent, and specifically, the SR ecological concrete inter-granular reinforcing agent is a SiO-containing reinforcing agent2Polymers synthesized with special functional monomers, which can participate in cement waterThe high molecular polymer cement hydrate is formed through chemical reaction, so that the compression strength and the bonding strength of the cement hydrate are greatly improved, and the freeze-thaw resistance, the durability and the weather resistance of the water permeable brick are improved.
Optionally, the particle size of the bottom layer aggregate is 5-10 mm; the bottom layer aggregate is the pea stone.
Optionally, the cement is any one or a combination of more of portland cement, aluminate cement, aluminum sulfate salt cement, ferro-aluminate cement, fluoroaluminate cement and phosphate cement.
In an application scene, the cement is Tairun P.O42.5R type cement, and the hydration reaction speed is high, the frost resistance is good, the corrosion resistance is good, and therefore, the frost resistance and the corrosion resistance of the water permeable brick can be improved.
Optionally, the grain size of the surface layer aggregate is 2-6 mm; the surface layer aggregate is quartz sand.
Optionally, the thickness of the bottom layer of the water permeable brick is 55-60mm, and the thickness of the surface layer of the water permeable brick is 5-7 mm.
Optionally, the coloring material contained in the water permeable brick surface layer is a material which does not affect the performance of the water permeable brick, and can be one or a combination of more of organic pigment, inorganic pigment and dye.
According to the scheme, the coloring material is added into the surface layer component of the water permeable brick, so that the water permeable brick is rich in color; the ceramsite is used as a bottom layer component of the water permeable brick, the ceramsite forms a porous brick with a framework-gap structure under the hardening action of cement, an intergranular reinforcing agent with a specific proportion is added to participate in the hydration reaction of the cement, so that a high polymer cement hydrate is formed, the binding force between the ceramsite and aggregate particles is increased, the intergranular reinforcing agent has good permeability, the intergranular reinforcing agent and free calcium in the water permeable brick component are subjected to chemical reaction through full penetration, and a crystalline colloid is generated to fill the surface gap of the water permeable brick, so that the strength and the wear resistance of the surface layer of the water permeable brick are improved. The ceramsite with a specific proportion is used as the bottom layer component of the water permeable brick and acts together with the inter-granular reinforcing agent with a specific proportion, so that the weight of the water permeable brick is reduced, the water permeability and the air permeability of the water permeable brick are improved, and the strength of the water permeable brick is improved.
Correspondingly, the embodiment of the application also provides a preparation method of the water permeable brick, and the preparation method comprises the following steps:
weighing ceramsite, an intergranular reinforcing agent, bottom aggregate and cement according to the mass percentage of the bottom components, adding water accounting for 50-70% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing the intergranular reinforcing agent, the surface layer aggregate, the cement and the coloring material according to the mass percent of the surface layer components, adding water accounting for 40-60% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and pressing the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
Optionally, in the preparation method of the water permeable brick, the water permeable brick is prepared by a full-automatic brick laying forming machine through a secondary charging and one-step forming mode on the bottom layer component and the surface layer component of the water permeable brick; thereby simplifying the production process and shortening the production time, thereby improving the production efficiency.
In one embodiment, the ceramsite, the inter-granular reinforcing agent, the bottom aggregate and the cement which are weighed according to the mass percentage of the bottom component are sequentially added into a bottom feeding hopper of the water permeable brick, then the ceramsite, the inter-granular reinforcing agent, the bottom aggregate and the cement are conveyed to a bottom stirrer of the water permeable brick through the bottom feeding hopper, and then water with the mass of 50-70% of the mass of the bottom component is added into the bottom stirrer of the water permeable brick and is stirred uniformly to obtain a bottom mixture of the water permeable brick;
sequentially adding the inter-granular reinforcing agent, the surface layer aggregate, the cement and the coloring material which are weighed according to the mass percentage of the surface layer components into a permeable brick surface layer stirring machine, adding water accounting for 40-60% of the mass of the surface layer components into the permeable brick surface layer stirring machine, and uniformly stirring to obtain a permeable brick surface layer mixture;
passing the permeable brick bottom layer mixture and the surface layer mixture through an automatic control device in the following sequence;
conveying the permeable brick bottom layer mixture to a vibration press through a bottom layer discharging hopper, vibrating for 3-5 seconds, and then pressing and molding to obtain a bottom layer brick blank; conveying the permeable brick surface layer mixture to the vibration press through a surface layer discharge hopper, vibrating the permeable brick surface layer mixture for 3-5 seconds, then pressing and forming the permeable brick surface layer mixture on the bottom layer brick blank, and naturally airing to obtain the permeable brick;
the surface layer thickness of the water permeable brick is 5-7mm, and the bottom layer thickness of the water permeable brick is 55-60 mm.
Optionally, the preparation method of the water permeable brick further comprises: and (5) curing the naturally dried permeable brick, namely watering and permeating twice every day for 7 days.
Optionally, in the preparation method of the water permeable bricks, the water permeable bricks are stacked in a staggered manner in a horizontal and vertical direction according to brick shapes; so that the water permeable bricks can be dried quickly and loaded conveniently.
Optionally, in the preparation method of the water brick, the water permeable brick is maintained in a manner of twice watering and permeating every day within 7 days; can ensure that the cement in the water permeable brick is fully hydrated, and a large amount of heat is generated in the hydration process, thereby improving the strength of the water permeable brick.
Preferably, after the water permeable bricks are formed, the water permeable bricks are covered by a plastic film and placed for 24 hours at normal temperature (15 ℃), namely the water permeable bricks can be piled up according to the brick shape in a staggered way in the transverse and vertical directions, then the water permeable bricks are maintained by spraying water, and the water permeable bricks are maintained by spraying water twice per day for 7 continuous days; so as to ensure that the cement in the water permeable brick is fully hydrated, and the heat emitted by the cement in the hydration process carries out self-maintenance on the water permeable brick, thereby improving the strength of the water permeable brick.
In the preparation method of the water permeable brick, the water permeable brick can be maintained in a watering and permeating mode twice a day within a period of more than 7 days.
In the preparation method of the water permeable brick, the automatic control equipment is adopted to carry out automatic control and release on the components of the bottom layer of the water permeable brick and the components of the surface layer of the water permeable brick respectively, and the components of the bottom layer of the water permeable brick and the components of the surface layer of the water permeable brick are prepared by a full-automatic brick laying forming machine in a way of secondary feeding and one-step forming, so that the water permeable brick can be obtained, the labor input is effectively reduced, the production process is simplified, the production time is shortened, and the production efficiency is improved; then, the water permeable bricks are maintained in a mode of watering and permeating twice every day within 7 days, so that the cement in the water permeable bricks can be fully hydrated, and a large amount of heat is generated in the hydration process, thereby improving the strength of the water permeable bricks.
The above water permeable brick and the preparation method thereof will now be described in detail with reference to specific preferred embodiments.
Preferred embodiment 1:
a water permeable brick and a preparation method thereof. Weighing 10% of ceramsite, 0.1% of intergranular reinforcing agent, 70% of bottom aggregate and 19.9% of cement according to the mass percent of the bottom layer components, adding water accounting for 50% of the mass of the bottom layer components, mixing, and uniformly stirring to obtain a permeable brick bottom layer mixture;
weighing 0.1% of inter-granular reinforcing agent, 48.9% of surface layer aggregate, 50% of cement and 1% of coloring material according to the mass percent of the surface layer components, adding water accounting for 40% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 55mm, and the thickness of the surface layer of the water permeable brick is 5 mm.
After the water permeable bricks are formed, the water permeable bricks are covered by plastic films at normal temperature (15 ℃) and then placed for 24 hours, namely the water permeable bricks are piled up according to the transverse and vertical staggered brick shape, then the water permeable bricks are maintained by spraying water for two times per day within 7 continuous days, and the sample number of the water permeable bricks after being maintained for 7 days is 1 #.
Preferred embodiment 2:
a water permeable brick and a preparation method thereof. Weighing 50% of ceramsite, 1% of intergranular reinforcing agent, 39% of bottom aggregate and 10% of cement according to the mass percentage of the bottom components, adding water accounting for 55% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing 1% of inter-granular reinforcing agent, 48% of surface layer aggregate, 50% of cement and 1% of coloring material according to the mass percent of the surface layer components, adding water accounting for 45% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 56mm, and the thickness of the surface layer of the water permeable brick is 6 mm.
And after the water permeable bricks are molded, covering the water permeable bricks with a plastic film at normal temperature (15 ℃) and then placing the water permeable bricks for 24 hours, namely, stacking the water permeable bricks in a staggered mode in a transverse and vertical mode according to the brick shapes, carrying out water spraying maintenance on the water permeable bricks, carrying out maintenance in a mode of spraying water twice per day for 7 continuous days, and numbering the water permeable brick samples after the maintenance for 7 days to be 2 #.
Preferred embodiment 3:
a water permeable brick and a preparation method thereof. Weighing 10% of ceramsite, 1% of intergranular reinforcing agent, 69% of bottom aggregate and 20% of cement according to the mass percent of the bottom components, adding water accounting for 70% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing 1% of inter-granular reinforcing agent, 90% of surface layer aggregate, 8.9% of cement and 0.1% of coloring material according to the mass percent of the surface layer components, adding water accounting for 60% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 60mm, and the thickness of the surface layer of the water permeable brick is 7 mm.
After the water permeable bricks are formed, the water permeable bricks are covered by plastic films at normal temperature (15 ℃) and then placed for 24 hours, namely the water permeable bricks are piled up according to the transverse and vertical staggered brick shape, then the water permeable bricks are maintained by spraying water for two times per day within 7 continuous days, and the sample number of the water permeable bricks after being maintained for 7 days is 3 #.
Preferred embodiment 4:
a water permeable brick and a preparation method thereof. Weighing 50% of ceramsite, 0.1% of intergranular reinforcing agent, 39.9% of bottom aggregate and 10% of cement according to the mass percent of the bottom components, adding water accounting for 65% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing 0.1% of inter-granular reinforcing agent, 90% of surface layer aggregate, 9% of cement and 0.9% of coloring material according to the mass percent of the surface layer components, adding water accounting for 55% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 57mm, and the thickness of the surface layer of the water permeable brick is 6 mm.
And after the water permeable bricks are molded, covering the water permeable bricks with a plastic film at normal temperature (15 ℃) and then placing the water permeable bricks for 24 hours, namely, stacking the water permeable bricks in a staggered mode in a transverse and vertical mode according to the brick shapes, carrying out water spraying maintenance on the water permeable bricks, carrying out maintenance in a mode of spraying water twice per day for 7 continuous days, and numbering the water permeable brick samples after the maintenance for 7 days to be number 4.
Preferred embodiment 5:
a water permeable brick and a preparation method thereof. Weighing 30% of ceramsite, 0.5% of intergranular reinforcing agent, 54.5% of bottom aggregate and 15% of cement according to the mass percent of the bottom components, adding water accounting for 60% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing 0.5% of intergranular reinforcing agent, 75% of surface layer aggregate, 24% of cement and 0.5% of coloring material according to the mass percent of the surface layer components, adding water accounting for 50% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 55mm, and the thickness of the surface layer of the water permeable brick is 5 mm.
And after the water permeable bricks are molded, covering the water permeable bricks with a plastic film at normal temperature (15 ℃) and then placing the water permeable bricks for 24 hours, namely, stacking the water permeable bricks in a staggered mode in a transverse and vertical mode according to the brick shapes, carrying out water spraying maintenance on the water permeable bricks, carrying out maintenance in a mode of spraying water twice per day for 7 continuous days, and numbering the water permeable brick samples after the maintenance for 7 days to be No. 5.
Preferred embodiment 6:
a water permeable brick and a preparation method thereof. Weighing 30% of ceramsite, 0.5% of intergranular reinforcing agent, 54.5% of bottom aggregate and 15% of cement according to the mass percent of the bottom components, adding water accounting for 60% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing 0.5% of intergranular reinforcing agent, 75% of surface layer aggregate, 24% of cement and 0.5% of coloring material according to the mass percent of the surface layer components, adding water accounting for 50% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and (3) pressing and molding the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
The thickness of the bottom layer of the water permeable brick is 55mm, and the thickness of the surface layer of the water permeable brick is 5 mm.
And after the water permeable bricks are molded, covering the water permeable bricks with a plastic film at normal temperature (15 ℃) and then placing the water permeable bricks for 24 hours, namely, stacking the water permeable bricks in a staggered mode in a transverse and vertical mode according to the brick shapes, carrying out water spraying maintenance on the water permeable bricks, carrying out maintenance by spraying water twice per day for 28 continuous days, and numbering the water permeable brick samples after 28 days of maintenance to be 6 #.
The water permeable brick samples with the numbers of 1#, 2#, 3#, 4#, 5# and 6# are tested according to the requirements of the national standard water permeable pavement brick and water permeable pavement slab (GBT25993-2010), the flexural strength test result is shown in table 3, the water permeability grade test result is shown in table 4, and the wear resistance and skid resistance test result is shown in table 5.
TABLE 3
TABLE 4
TABLE 5
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included therein.
Claims (9)
1. The utility model provides a brick permeates water, includes bottom and surface course two parts, its characterized in that: the bottom layer comprises the following components in percentage by mass: 10-50% of ceramsite, 0.1-1% of intergranular reinforcing agent, 39-70% of bottom layer aggregate and 10-20% of cement; the surface layer comprises the following components in percentage by mass: 0.1-1% of inter-granular reinforcing agent, 40-90% of surface layer aggregate, 8-50% of cement and 0.1-1% of coloring material.
2. The permeable brick of claim 1, wherein the ceramsite has a particle size of 3-8mm, an apparent density of 670-.
3. The water permeable brick of claim 2, wherein the raw material of the ceramsite comprises residual soil produced by innocent treatment of river and lake sludge.
4. The water permeable brick of any one of claims 1 to 3, wherein the intergranular reinforcing agent is an ecological water permeable concrete reinforcing agent.
5. The water permeable brick according to any one of claims 1 to 3, wherein the particle size of the ground aggregate is 5 to 10 mm; the bottom layer aggregate is the pea stone.
6. The water permeable brick according to any one of claims 1 to 3, wherein the grain size of the facing aggregate is 2 to 6 mm; the surface aggregate is quartz sand.
7. The water permeable brick according to any one of claims 1 to 3, wherein the thickness of the bottom layer of the water permeable brick is 55 to 60mm, and the thickness of the top layer of the water permeable brick is 5 to 7 mm.
8. A method for preparing the water permeable brick based on any one of claims 1 to 7, wherein the method for preparing the water permeable brick comprises the following steps:
weighing ceramsite, an intergranular reinforcing agent, bottom aggregate and cement according to the mass percentage of the bottom components, adding water accounting for 50-70% of the mass of the bottom components, mixing, and uniformly stirring to obtain a permeable brick bottom mixture;
weighing the inter-granular reinforcing agent, the surface layer aggregate, the cement and the coloring material according to the mass percent of the surface layer components, adding water accounting for 40-60% of the mass of the surface layer components, mixing, and uniformly stirring to obtain a permeable brick surface layer mixture;
pressurizing and molding the permeable brick bottom layer mixture to obtain a bottom layer brick blank;
and pressing the permeable brick surface layer mixture on the bottom layer green brick, and naturally airing to obtain the permeable brick.
9. The method of manufacturing a water permeable brick according to claim 8, further comprising: and (5) curing the naturally dried permeable brick, namely watering and permeating twice every day for 7 days.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115196920A (en) * | 2022-07-12 | 2022-10-18 | 湖北省成美建材股份有限公司 | Preparation method of concrete with high compression-resistant structure |
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| CN109293290A (en) * | 2018-10-17 | 2019-02-01 | 合肥月煌新型装饰材料有限公司 | A kind of high intensity water-permeable brick and preparation method thereof |
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Application publication date: 20200424 |