CN112125594A - Sand-based inorganic water permeable brick and preparation method thereof - Google Patents
Sand-based inorganic water permeable brick and preparation method thereof Download PDFInfo
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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
- C04B28/02—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 hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/093—Producing shaped prefabricated articles from the material by vibrating or jolting by means directly acting on the material, e.g. by cores wholly or partly immersed in the material or elements acting on the upper surface of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
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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
- 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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- 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
- E01C15/00—Pavings specially adapted for footpaths, sidewalks or cycle tracks
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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
- E01C5/22—Pavings made of prefabricated single units made of units composed of a mixture of materials covered by two or more of groups E01C5/008, E01C5/02 - E01C5/20 except embedded reinforcing materials
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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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
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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
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Abstract
The invention provides a sand-based inorganic water permeable brick and a preparation method thereof. This inorganic brick that permeates water of sand base includes: the permeable surface layer is bonded with the upper surface of the permeable base layer; the water permeable surface layer comprises the following components in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36; the permeable base layer comprises the following components in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37. According to the invention, through the combined design of white cement and sand, the durability of the water permeable surface layer is effectively improved, through the design of adding attapulgite and the combined design of the attapulgite, the cement and the sand, the surface smoothness and luster of the water permeable surface layer are increased, the gloss is more obvious, and the water permeability of the sand-based inorganic water permeable brick is improved.
Description
Technical Field
The invention belongs to the technical field of water permeable bricks, and particularly relates to a sand-based inorganic water permeable brick and a preparation method thereof.
Background
With the continuous development of urban construction and the improvement of living standard of people, the urban square, street, community activity center and the like paved by adopting impermeable materials such as granite, marble, glazed brick, asphalt and the like in the traditional urban construction process are gradually eliminated. In recent years, due to rapid development of urbanization, in order to relieve urban waterlogging, China proposes a sponge urban construction plan with integration of a plurality of technologies such as seepage, stagnation, storage, purification and drainage, and research and development and design of water permeable bricks are one of important links in urban planning. The brick that permeates water has the characteristic of continuous hole because of its structure, can make during rainwater etc. in time drains into underground soil, supplements the groundwater resource, improves city ecological environment, makes the brick that permeates water that has the water permeability obtain application on a large scale, and adopts the brick that permeates water to lay and can also alleviate city drainage system's pressure, improves people's living environment.
In the use of the existing water permeable brick, the water permeability is low and the durability is poor, so that the water permeable brick has the advantages of short service life and poor drainage effect.
Disclosure of Invention
The invention aims to provide a sand-based inorganic water permeable brick with good water permeability and strong durability and a preparation method thereof.
In order to solve the technical problems, the sand-based inorganic water permeable brick provided by the invention comprises a water permeable surface layer and a water permeable base layer, wherein the water permeable surface layer is bonded with the upper surface of the water permeable base layer;
the water permeable surface layer comprises the following components in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36;
the permeable base layer comprises the following components in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37.
Preferably, the sand material is colored sand or silica sand, the particle size of the colored sand is 20-40 meshes, and the particle size of the silica sand is 40-80 meshes.
Preferably, the diameter of the first type of saltpeter is 2-5 mm, the diameter of the second type of saltpeter is 3-8 mm, and the fineness modulus of the tailings is 2.6.
Preferably, the permeable surface layer further comprises an alkali-resistant additive, the alkali-resistant additive accounts for 2.5-3.5 parts by weight, the permeable base layer further comprises a concrete reinforcing agent, and the concrete reinforcing agent accounts for 2-4 parts by weight.
Preferably, the concrete reinforcing agent adopts hollow microspheres.
Compared with the related art, the sand-based inorganic water permeable brick provided by the invention has the following beneficial effects: through the combination design of white cement and sand material, the effectual durability that has improved the surface course that permeates water, through the design that adds attapulgite, through the combination design of attapulgite with cement and sand material for ponding surface course surface is fine and smooth to be felt increases, gloss is more obvious, and has improved the water permeability of the inorganic brick that permeates water of sand base.
Another object of an embodiment of the present invention is to provide a method for preparing a sand-based inorganic water permeable brick, including:
respectively weighing surface layer raw materials and base layer raw materials according to preset weight part component proportions, wherein the surface layer raw materials comprise white cement, sand and attapulgite, and the base layer raw materials comprise grey cement, tailing sand and rock salt;
controlling the surface layer raw material and the base layer raw material to be respectively and correspondingly sequentially fed into a stirrer through a climbing funnel according to the sequence of fine aggregate, coarse aggregate, powder admixture, pigment and gel material, and controlling the stirrer to carry out dry stirring;
after the stirrer finishes dry stirring, adding water and additives, and carrying out wet stirring;
inputting the stirred base raw materials into a backing material distribution box of a permeable brick forming host, and controlling the permeable brick forming host to vibrate and press the base raw materials in the backing material distribution box to form so as to obtain a permeable base;
inputting the stirred surface layer raw materials into a fabric distribution box of the water permeable brick forming host, and controlling the water permeable brick forming host to vibrate and press the surface layer raw materials in the fabric distribution box to form a water permeable surface layer so as to obtain a wet blank water permeable brick;
and conveying the wet blank water permeable brick to a curing kiln for brick material curing, and obtaining the sand-based inorganic water permeable brick when the brick material curing is completed.
Preferably, the step of controlling the water permeable brick molding host to vibrate and press the base raw material in the bed charge distribution box comprises:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
controlling the vibration rotating speed of the vibration table to be 50Hz, controlling the angle of the vibration flail block to be 55 degrees, and controlling the vibration to be intermittent, wherein the vibration time is 0.45 s.
Preferably, the step of controlling the water permeable brick molding host machine to vibrate and press the surface layer raw material in the surface material distribution box comprises:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
and controlling the vibration rotating speed of the vibration table to be 50Hz and the angle of the vibration flail block to be 100 degrees, and controlling the starting of main vibration and the vibration time to be 2.2 s.
Preferably, the additive in the surface layer raw material is an alkali-resistant additive, the additive in the base layer raw material is a concrete reinforcing agent, the dry stirring time is 50s, and the wet stirring time is 55 s.
Preferably, the sand material is the fine aggregate, the tailing sand is the coarse aggregate, and the attapulgite is the powder admixture.
Drawings
Fig. 1 is a flow chart of a method for manufacturing a sand-based inorganic water permeable brick according to a third embodiment of the present invention;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The strength performance and the water permeability of the traditional concrete water permeable brick are two contradictory technical indexes, one of the two indexes is usually sacrificed to ensure that the other index meets the requirement, and the two performances can be balanced as far as possible in industrial production, so that the technical difficulty cannot be fundamentally solved; the conventional concrete permeable brick generally requires a rough surface layer and has gaps with larger apertures to meet the water permeability requirement, so that the conventional concrete permeable brick has defects in the aspect of integral aesthetic feeling; although the sand-based water permeable brick adopts the organic bonding material, the problem of rough surface layer can be solved, and the sand-based water permeable brick achieves excellent water permeability, the durability, the acid and alkali resistance, the weather resistance and the like of the sand-based water permeable brick become one of the defects. Therefore, an object of an embodiment of the present invention is to provide a sand-based inorganic water permeable brick having good water permeability, high durability, and an aesthetically pleasing surface layer.
Example one
The first embodiment of the invention provides a sand-based inorganic water permeable brick, which comprises a water permeable surface layer and a water permeable base layer, wherein the water permeable surface layer is bonded with the upper surface of the water permeable base layer;
the water permeable surface layer comprises the following components in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36;
the permeable base layer comprises the following components in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37.
This embodiment is through the combination design of white cement and sand material, and the effectual durability that has improved the surface course that permeates water through the design that adds attapulgite, through the combination design of attapulgite with cement and sand material for ponding surface course surface is fine and smooth to be felt increases, gloss is more obvious, and has improved the water permeability of the inorganic brick that permeates water of sand base.
Example two
The second embodiment of the invention provides a sand-based inorganic water permeable brick, which comprises a water permeable surface layer and a water permeable base layer, wherein the water permeable surface layer is bonded with the upper surface of the water permeable base layer;
the water permeable surface layer comprises the following components in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36;
the permeable base layer comprises the following components in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37.
The sand material is color sand or silica sand, the particle size of the color sand is 20-40 meshes, the particle size of the silica sand is 40-80 meshes, the diameter of the first type of saltpeter is 2-5 mm, the diameter of the second type of saltpeter is 3-8 mm, and the fineness modulus of the tailing sand is 2.6.
Preferably, the permeable surface layer further comprises an alkali-resistant additive, the alkali-resistant additive accounts for 2.5-3.5 parts by weight, the permeable base layer further comprises a concrete reinforcing agent, the concrete reinforcing agent accounts for 2-4 parts by weight, and the concrete reinforcing agent is hollow microspheres.
Specifically, in this embodiment, the mixing ratio can be slightly adjusted according to the size and color of the product, the touch requirement of the product, the aggregate and the climate change, so as to achieve the desired effect. The conventional mixing proportion is detailed as follows:
in addition, in this embodiment, a certain amount of sand-based inorganic water permeable bricks qualified in the appearance inspection are extracted for the detection of the physical property items. The results are shown in the following table.
The method is used for detecting the compressive strength of the sand-based inorganic water permeable brick according to the JG/T376 sand-based water permeable brick, and the detection results are shown in the following table.
The result shows that all performances of the sand-based inorganic water permeable brick meet the relevant requirements, and the main constituent materials are inorganic materials, so that the sand-based inorganic water permeable brick has better durability and stronger weather resistance compared with an organic water permeable brick product.
In the embodiment, when the color sand or the silica sand is prepared, the color sand or the silica sand needs to be cleaned and dried, so that impurities such as soil, dust and the like in materials can be effectively removed, and the reasonable grading of 10-20 meshes and 20-40 meshes of sand can increase the fineness and the texture of the surface layer of the product, after being combined with high-strength white cement, the strength of a surface layer is correspondingly improved along with the enhancement of the combination capability of ash and aggregate, the wear resistance is improved by about 10 percent compared with the wear resistance of a product using sand which is not washed, the natural clay mineral Attapulgite (ATP) is an inorganic material rich in magnesium aluminum silicate, is generally white and grey white and has weak sericite luster, the clay mineral has light and fine quality, grease feeling, large specific surface area, good thermal stability, unique dispersibility, high temperature resistance, salt and alkali resistance and excellent adsorption and infiltration capacity, and is one of high-quality clay minerals in China. After the attapulgite is subjected to acid washing and high-temperature modification treatment, impurities such as carbonate in crystal pore canals are separated, so that the pore canals are dredged, and the adsorption and permeation capacity is enhanced. After the modified ATP is combined with cement and sand materials, the surface of the surface layer is more exquisite and more obvious in gloss, the water permeability coefficient of the surface layer is about 1.4 multiplied by 10 < -2 > cm/s, the water permeability rate is improved by 5% -10% compared with the surface layer without the ATP, the concrete alkali efflorescence phenomenon is prevented to a certain extent, the sand-based inorganic water permeable brick has good porosity, the porosity of the base layer is about 30%, the compressive strength of a product reaches more than 35MPa, and the water permeability coefficient of the base layer can be guaranteed to reach about 2.4 multiplied by 10 < -2 > cm/s. The addition of the concrete reinforcing auxiliary agent enables the compressive strength of the base layer to be improved to more than 40MPa, the durability of the water permeable surface layer is effectively improved through the combined design of white cement and sand, the fine and smooth feeling of the surface of the water permeable surface layer is increased, the gloss is more obvious through the design of adding the attapulgite, and the water permeability of the sand-based inorganic water permeable brick is improved.
EXAMPLE III
Referring to fig. 1, a flow chart of a method for manufacturing a sand-based inorganic water permeable brick according to a third embodiment of the present invention is shown, where the method includes:
step S10, respectively weighing the surface layer raw material and the base layer raw material according to the preset weight part component;
the surface raw materials comprise white cement, sand and attapulgite, and the base raw materials comprise cement ash, tailing sand and rock salt;
specifically, the surface layer comprises the following raw materials in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36;
the base layer comprises the following raw materials in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37;
preferably, in this embodiment, before step S10, the method further includes a preparation process of the raw material:
washing color sand and silica sand for 1 time, washing tailing sand and rock salt for 2 times to remove impurities such as soil, then putting into a tunnel dryer for drying at a proper temperature, screening by a screen to separate out proper particle sizes, and storing for later use after the detection is qualified; the cement is detected to be qualified and then stored in a storage bin; sampling the modified attapulgite, measuring the alkali content of the modified attapulgite by a titration method, and storing the modified attapulgite in a charging bucket after the modified attapulgite is qualified; sampling and detecting the additives when each batch of the additives arrive, performing a comparison test, and storing the additives in a cool environment after confirming the additives are effective after 3 days;
step S20, controlling the surface layer raw material and the base layer raw material to be respectively and correspondingly sent into a stirrer through a climbing funnel according to the sequence of fine aggregate, coarse aggregate, powder admixture, pigment and gel material, and controlling the stirrer to carry out dry stirring;
wherein the sand material is the fine aggregate, the tailing sand is the coarse aggregate, the attapulgite is the powder admixture, and the dry stirring time is 50 s;
step S30, adding water and additives after the stirrer completes dry stirring, and carrying out wet stirring;
the additive in the surface layer raw material is an alkali-resistant additive, the additive in the base layer raw material is a concrete reinforcing agent, the alkali-resistant additive accounts for 2.5-3.5 parts by weight, the concrete reinforcing agent accounts for 2-4 parts by weight, the concrete reinforcing agent is hollow microspheres, and the wet stirring time is 55 s;
step S40, inputting the stirred base raw materials into a backing material distribution box of a permeable brick forming host, and controlling the permeable brick forming host to vibrate and press the base raw materials in the backing material distribution box to form so as to obtain a permeable base;
in this step, the step of controlling the water permeable brick molding host to vibrate and press-mold the base raw material in the bed charge distribution box comprises:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
controlling the vibration rotating speed of the vibration table to be 50Hz and the angle of the vibration throwing block to be 55 degrees, and controlling the vibration to be intermittent for 0.45 s;
step S50, inputting the stirred surface layer raw materials into a fabric distribution box of the water permeable brick forming host, and controlling the water permeable brick forming host to vibrate and press the surface layer raw materials in the fabric distribution box to form a water permeable surface layer so as to obtain a wet blank water permeable brick;
in this step, the step of controlling the water permeable brick molding host machine to vibrate and press the surface layer raw material in the surface material distribution box comprises:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
controlling the vibration rotating speed of the vibration table to be 50Hz and the angle of the vibration throwing block to be 100 degrees, and controlling the starting of main vibration and the vibration time to be 2.2 s;
in addition, in the step, when the production of the wet blank water permeable bricks is finished, the wet blank water permeable bricks need to be subjected to sampling inspection, defective products are manually picked out and then conveyed by a pallet, and then the defective products are conveyed by a main truck and stored in a curing kiln;
step S60, conveying the wet blank water permeable brick to a curing kiln for brick curing, and obtaining a sand-based inorganic water permeable brick when the brick curing is finished;
when the products are taken out of the kiln, the products need to be subjected to selective inspection and manual secondary picking to remove defective products, then the products are automatically stacked on a tray by a stacking machine and automatically packaged by a packaging machine, labels and bar codes containing product information are manually adhered, and finally the products are transported into a finished product warehouse by a forklift;
in the embodiment, impurities such as dirt and dust in materials can be effectively removed through the design of cleaning and drying the color sand or the silica sand, the fineness and the texture of a surface layer of a product can be increased through reasonable grading of 10-20 meshes of sand and 20-40 meshes of sand, after the surface layer is combined with high-strength white cement, the strength of the surface layer is correspondingly improved along with the enhancement of the combination capacity of ash and aggregate, the wear resistance is improved by about 10% compared with that of the product using sand which is not washed, natural clay mineral Attapulgite (ATP) is an inorganic material rich in magnesium aluminum silicate, the common color is white and grey white, the clay has weak sericite-like luster, is light and fine, has a greasy feeling, is one of high-quality minerals in China, and has large specific surface area, good thermal stability, unique dispersibility, high temperature resistance, saline alkali resistance and excellent adsorption and permeability. After the attapulgite is subjected to acid washing and high-temperature modification treatment, impurities such as carbonate in crystal pore canals are separated, so that the pore canals are dredged, and the adsorption and permeation capacity is enhanced. After the modified ATP is combined with cement and sand materials, the surface of the surface layer is more exquisite and more obvious in gloss, the water permeability coefficient of the surface layer is about 1.4 multiplied by 10 < -2 > cm/s, the water permeability rate is improved by 5% -10% compared with the surface layer without the ATP, the concrete alkali efflorescence phenomenon is prevented to a certain extent, the sand-based inorganic water permeable brick has good porosity, the porosity of the base layer is about 30%, the compressive strength of a product reaches more than 35MPa, and the water permeability coefficient of the base layer can be guaranteed to reach about 2.4 multiplied by 10 < -2 > cm/s. The addition of the concrete reinforcing auxiliary agent enables the compressive strength of the base layer to be improved to more than 40MPa, the durability of the water permeable surface layer is effectively improved through the combined design of white cement and sand, the fine and smooth feeling of the surface of the water permeable surface layer is increased, the gloss is more obvious through the design of adding the attapulgite, and the water permeability of the sand-based inorganic water permeable brick is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The sand-based inorganic water permeable brick is characterized by comprising a water permeable surface layer and a water permeable base layer, wherein the water permeable surface layer is bonded with the upper surface of the water permeable base layer;
the water permeable surface layer comprises the following components in parts by weight: 104.5-106.5 parts of white cement, 384-386 parts of sand and 5-7 parts of attapulgite, wherein the water-cement ratio of the water permeable surface layer is 0.34-0.36;
the permeable base layer comprises the following components in parts by weight: 549-551 parts of gray cement, 124-126 parts of tailing sand, 499-501 parts of first type saltpeter and 1249-1251 parts of second type saltpeter, wherein the water-cement ratio of the permeable base layer is 0.35-0.37.
2. The sand-based inorganic water permeable brick according to claim 1, wherein the sand material is colored sand or silica sand, the particle size of the colored sand is 20-40 meshes, and the particle size of the silica sand is 40-80 meshes.
3. The sand-based inorganic water permeable brick according to claim 1, wherein the diameter of the first type of saltpeter is 2-5 mm, the diameter of the second type of saltpeter is 3-8 mm, and the fineness modulus of the tailings sand is 2.6.
4. The sand-based inorganic water permeable brick according to claim 1, wherein the water permeable surface layer further comprises 2.5-3.5 parts by weight of an alkali-resistant additive, and the water permeable base layer further comprises 2-4 parts by weight of a concrete reinforcing agent.
5. The sand-based inorganic water permeable brick according to claim 4, wherein the concrete reinforcing agent is hollow micro beads.
6. A preparation method of a sand-based inorganic water permeable brick is characterized by comprising the following steps:
respectively weighing surface layer raw materials and base layer raw materials according to preset weight part component proportions, wherein the surface layer raw materials comprise white cement, sand and attapulgite, and the base layer raw materials comprise grey cement, tailing sand and rock salt;
controlling the surface layer raw material and the base layer raw material to be respectively and correspondingly sequentially fed into a stirrer through a climbing funnel according to the sequence of fine aggregate, coarse aggregate, powder admixture, pigment and gel material, and controlling the stirrer to carry out dry stirring;
after the stirrer finishes dry stirring, adding water and additives, and carrying out wet stirring;
inputting the stirred base raw materials into a backing material distribution box of a permeable brick forming host, and controlling the permeable brick forming host to vibrate and press the base raw materials in the backing material distribution box to form so as to obtain a permeable base;
inputting the stirred surface layer raw materials into a fabric distribution box of the water permeable brick forming host, and controlling the water permeable brick forming host to vibrate and press the surface layer raw materials in the fabric distribution box to form a water permeable surface layer so as to obtain a wet blank water permeable brick;
and conveying the wet blank water permeable brick to a curing kiln for brick material curing, and obtaining the sand-based inorganic water permeable brick when the brick material curing is completed.
7. The method for preparing the sand-based inorganic water permeable brick as claimed in claim 6, wherein the step of controlling the water permeable brick forming host machine to perform vibration pressing forming on the base raw material in the bed material distribution box comprises:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
controlling the vibration rotating speed of the vibration table to be 50Hz, controlling the angle of the vibration flail block to be 55 degrees, and controlling the vibration to be intermittent, wherein the vibration time is 0.45 s.
8. The method for preparing the sand-based inorganic water permeable brick according to claim 6, wherein the step of controlling the water permeable brick forming host machine to perform vibration pressing forming on the surface layer raw material in the fabric distribution box comprises the following steps:
controlling the male die of the water permeable brick molding host machine to press 55 bar;
and controlling the vibration rotating speed of the vibration table to be 50Hz and the angle of the vibration flail block to be 100 degrees, and controlling the starting of main vibration and the vibration time to be 2.2 s.
9. The method for preparing the sand-based inorganic water permeable brick according to claim 6, wherein the additive in the surface layer raw material is an alkali-resistant additive, the additive in the base layer raw material is a concrete reinforcing agent, the dry stirring time is 50s, and the wet stirring time is 55 s.
10. The method for preparing a sand-based inorganic water permeable brick according to claim 6, wherein the sand material is the fine aggregate, the tailing sand is the coarse aggregate, and the attapulgite is the powder admixture.
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| CN114873960A (en) * | 2021-12-29 | 2022-08-09 | 天津欧贝姆建材有限公司 | Inorganic sand-based water permeable brick and preparation method thereof |
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Application publication date: 20201225 |