CN117430388A - Floor stone with ink textures and preparation method thereof - Google Patents
Floor stone with ink textures and preparation method thereof Download PDFInfo
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- CN117430388A CN117430388A CN202311389685.9A CN202311389685A CN117430388A CN 117430388 A CN117430388 A CN 117430388A CN 202311389685 A CN202311389685 A CN 202311389685A CN 117430388 A CN117430388 A CN 117430388A
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- 239000004575 stone Substances 0.000 title claims abstract description 164
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 191
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 95
- 238000003756 stirring Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 45
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000006004 Quartz sand Substances 0.000 claims abstract description 39
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 238000010521 absorption reaction Methods 0.000 claims abstract description 26
- 239000000049 pigment Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 48
- 239000004568 cement Substances 0.000 claims description 48
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 26
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
- 239000011707 mineral Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004571 lime Substances 0.000 claims description 12
- 229920005646 polycarboxylate Polymers 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 19
- 239000000047 product Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 10
- 239000008030 superplasticizer Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004513 sizing Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- 230000003796 beauty Effects 0.000 description 3
- 238000009408 flooring Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 101100136092 Drosophila melanogaster peng gene Proteins 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 229910001748 carbonate mineral Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000011043 treated quartz Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
-
- 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
- E01C5/06—Pavings made of prefabricated single units made of units with cement or like binders
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
-
- 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 invention discloses a paving stone with ink textures and a preparation method thereof, comprising the following steps: A. uniformly mixing the basic powder, water and a water reducing agent, and then adding quartz sand to uniformly stir to obtain white slurry; B. uniformly mixing the basic powder, water, black pigment and a water reducing agent, and then adding quartz sand to uniformly stir to obtain black paste; C. and pouring the white slurry and the black slurry into a container, stirring the white slurry and the black slurry until the required ink textures appear, pouring the mixture into a mould for curing, and curing to obtain the land stone with the ink textures. The preparation method of the ground stone with the ink texture, which is provided by the invention, has the advantages of simple preparation method and strong operability, gives the ground stone with natural ink texture, is beneficial to improving the randomness and diversity of the ground stone texture on the premise of improving the attractiveness of the ground stone, can reduce the production cost and the water absorption rate of the ground stone, and improves the flexural strength and the compressive strength of the ground stone.
Description
Technical Field
The invention relates to the field of paving stones, in particular to a paving stone with ink textures and a preparation method thereof.
Background
The floor stone is made of cement, stone, aggregate and the like serving as main raw materials through processing, vibration pressurizing or other forming processes, has the advantages of environmental protection, ageing resistance, no deformation and the like, and is widely applied to pavement engineering in the fields of municipal administration, water conservancy, parks, urban squares and the like.
In order to save cost, the existing ground stone mainly adopts a bottom layer and a surface layer of double-layer cloth, wherein the bottom layer is used as a base stone, the ground stone is endowed with ageing resistance, strength, compression resistance and other performances, the surface layer is used for improving the aesthetic degree of the ground stone, but the upper layer and the lower layer of the ground stone are inconsistent in color due to the double-layer cloth, so that the aesthetic degree of the ground stone is weakened; meanwhile, the double-layer cloth is required, so that the preparation method is complicated; in addition, the bottom layer and the surface layer of the existing ground stone are mainly made of cement and waste residues, in order to reduce production cost, the proportion of the waste residues in the raw material formula is higher, the mechanical property of the waste residues is poorer, the breaking strength and the compressive strength of the existing ground stone are lower, the water absorption is higher, and the high water absorption of the ground stone causes swelling due to excessive water absorption after a period of use, so that the breaking strength and the compressive strength of the ground stone are further reduced.
At present, a method for improving the attractiveness of the ground paving stone mainly comprises the steps of manufacturing a mould according to the textures of natural stones or the textures required by the ground paving stone, arranging the textures at the bottom of the mould, pouring slurry into the mould for curing and solidifying, and demoulding to obtain the ground paving stone with the surface having the textures required by the ground paving stone, so that the attractiveness of the ground paving stone is improved, but the randomness of the textures of the ground paving stone obtained by the method is poor, and when various ground paving stone textures are required to be prepared, the mould is required to be prepared again, so that the production cost is high.
Disclosure of Invention
The first aim of the invention is to provide a preparation method of the ground stone with the water-ink texture, which is simple, has strong operability, gives the ground stone with natural water-ink texture, is beneficial to improving the randomness and diversity of the ground stone texture on the premise of improving the attractiveness of the ground stone, can reduce the production cost and the water absorption rate of the ground stone, improves the breaking strength and the compressive strength of the ground stone, and overcomes the defects in the prior art.
The second object of the present invention is to provide a flooring stone prepared by the above-mentioned method for preparing a flooring stone having a water-ink texture, which has a water-ink texture effect and has high randomness and diversity of the texture of the flooring stone; meanwhile, the flexural strength is more than or equal to 8MPa, the compressive strength is more than or equal to 80MPa, the water absorption rate is less than or equal to 6.4%, and the high flexural strength, the high compressive strength and the low water absorption are realized.
To achieve the purpose, the invention adopts the following technical scheme:
a method for preparing a land stone with ink textures, which is characterized by comprising the following steps:
A. uniformly mixing the basic powder, water and a water reducing agent, and then adding quartz sand to uniformly stir to obtain white slurry;
B. uniformly mixing the basic powder, water, black pigment and a water reducing agent, and then adding quartz sand to uniformly stir to obtain black paste;
C. pouring the white slurry and the black slurry into a container, stirring the white slurry and the black slurry until the required ink textures appear, pouring the mixture into a mould for curing, and curing to obtain the land stone with the ink textures;
in the step A and the step B, the basic powder comprises white cement, heavy calcium carbonate, mineral powder and metakaolin; and in the step C, the mixing ratio of the white slurry to the black slurry is (38-42) according to the mass ratio: 1.
further, in the step A, the white slurry raw materials comprise 45-55 parts of white cement, 15-25 parts of heavy calcium carbonate, 15-25 parts of mineral powder, 5-15 parts of metakaolin, 90-137.5 parts of quartz sand, 9-13.75 parts of water and 1-2 parts of water reducer according to parts by weight;
in the step B, the black slurry raw materials comprise 45-55 parts by mass of white cement, 15-25 parts by mass of heavy calcium carbonate, 15-25 parts by mass of mineral powder, 5-15 parts by mass of metakaolin, 90-137.5 parts by mass of quartz sand, 6.75-10.45 parts by mass of water, 0.02-0.04 part by mass of black pigment and 1-2 parts by mass of water reducer.
Further, in the step A, the water-cement ratio of the white slurry is 0.2-0.25 according to the mass ratio;
in the step B, the water-cement ratio of the black slurry is 0.15-0.19 according to the mass ratio.
Further, in the step A, the sand-lime ratio of the white slurry is (2-2.5) according to the mass ratio: 1, a step of;
in the step B, the sand-lime ratio of the black slurry is (2-2.5) according to the mass ratio: 1.
further, in the step A and the step B, the mesh number of the quartz sand is 70-120 mesh.
Further, in step B, the black pigment includes iron oxide.
Further, in the step A and the step B, the water reducing agent is a polycarboxylic acid water reducing agent.
Further, in the step C, the stirring time of the stirring step is 3-5 s, and the stirring speed is 300-500 rpm/min.
Further, in the step C, the curing humidity in the curing step is 80-85%, the curing temperature is 30-34 ℃, and the curing time is 24-48 h.
The floor stone with the ink texture is prepared by the preparation method of the floor stone with the ink texture, wherein the flexural strength of the floor stone is more than or equal to 8MPa, the compressive strength of the floor stone is more than or equal to 80MPa, and the water absorption rate of the floor stone is less than or equal to 6.4%.
The technical scheme provided by the embodiment of the application can comprise the following beneficial effects:
1. according to the technical scheme, the stirred white slurry and black slurry are fully utilized to mutually infiltrate and mutually dye, so that the texture of the ground stone is enabled to be transitionally natural, and the beauty of the ground stone is greatly improved like a wash painting; meanwhile, the floor stone with different ink textures can be obtained by stirring, so that the randomness and diversity of the floor stone textures are improved, and the defect that the production cost is increased due to the fact that a mould is required to be prepared again when various floor stone textures need to be prepared in the prior art is overcome. In addition, the white slurry and the black slurry are poured into a container, the white slurry and the black slurry are stirred until the required ink textures appear, then poured into a mold for curing, and the ground stone can be prepared after curing, and the preparation method is simple, low in cost, strong in controllable operability and suitable for further development and industrialization application; the ground paving stone obtained by the preparation method is of a whole structure, so that the attractiveness is further improved, the situation that an upper layer and a lower layer are possibly separated due to the fact that the traditional ground paving stone adopts a double-layer structure is avoided, and the strength of the ground paving stone is ensured; besides, the white slurry and the black slurry are good in fluidity, high in strength after solidification and low in water absorption, and the ground paving stone obtained after solidification has high breaking strength, high compressive strength and low water absorption on the premise of high attractiveness.
2. The stone paving preparation method is simple, low in cost, high in controllability and operability, and suitable for further development and industrialization application; the prepared ground stone is of a whole structure, is more attractive, and can be widely applied to pavement engineering in the fields of municipal administration, water conservancy, parks, urban squares and the like.
Drawings
Fig. 1 is a schematic view showing the surface effect of the paving stone of example 1 in the preparation method of the paving stone with ink and water texture according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The technical scheme provides a preparation method of a ground stone with ink textures, which is characterized by comprising the following steps:
A. uniformly mixing the basic powder, water and a water reducing agent, and then adding quartz sand to uniformly stir to obtain white slurry;
B. uniformly mixing the basic powder, water, black pigment and a water reducing agent, and then adding quartz sand to uniformly stir to obtain black paste;
C. pouring the white slurry and the black slurry into a container, stirring the white slurry and the black slurry until the required ink textures appear, pouring the mixture into a mould for curing, and curing to obtain the land stone with the ink textures;
in the step A and the step B, the basic powder comprises white cement, heavy calcium carbonate, mineral powder and metakaolin; and in the step C, the mixing ratio of the white slurry to the black slurry is (38-42) according to the mass ratio: 1.
in order to solve the problems of complex preparation method, poor texture randomness, low flexural strength and high water absorption rate of the prior art, the technical scheme provides a preparation method of the ground stone with the water-ink texture, which comprises three steps of A (preparation of white slurry), B (preparation of black slurry) and C (stirring and curing), and the ground stone with the transitional natural water-ink texture is obtained by innovating a white slurry formula and a black slurry formula and controlling the mixing proportion of the white slurry and the black slurry, so that the ground stone with the transitional natural water-ink texture is beneficial to improving the randomness and diversity of the ground stone texture on the premise of improving the attractiveness of the ground stone, and simultaneously, the production cost and the water absorption rate of the ground stone are reduced, and the flexural strength and the compressive strength of the ground stone are improved so as to meet the use requirements.
According to the technical scheme, the stirred white slurry and black slurry are fully utilized to mutually infiltrate and mutually dye, so that the texture of the ground stone is enabled to be transitionally natural, and the beauty of the ground stone is greatly improved like a wash painting; meanwhile, the floor stone with different ink textures can be obtained by stirring, so that the randomness and diversity of the floor stone textures are improved, and the defect that the production cost is high due to the fact that a mould is required to be prepared again when various floor stone textures need to be prepared in the prior art is overcome. In addition, the white slurry and the black slurry are poured into a container, the white slurry and the black slurry are stirred until the required ink textures appear, then poured into a mold for curing, and the ground stone can be prepared after curing, and the preparation method is simple, low in cost, strong in controllable operability and suitable for further development and industrialization application; the ground paving stone obtained by the preparation method is of a whole structure, so that the attractiveness is further improved, the situation that an upper layer and a lower layer are possibly separated due to the fact that the traditional ground paving stone adopts a double-layer structure is avoided, and the strength of the ground paving stone is ensured; besides, the white slurry and the black slurry are good in fluidity, high in strength after solidification and low in water absorption, and the ground paving stone obtained after solidification has high breaking strength, high compressive strength and low water absorption on the premise of high attractiveness.
Further, the raw materials of the white slurry and the black slurry comprise basic powder, wherein the basic powder comprises white cement, heavy calcium carbonate, mineral powder and metakaolin, the white cement is adhered to the surface of quartz sand to wrap and bond the quartz sand, so that the white slurry or the black slurry is bonded to form a whole, and the strength of the white slurry or the black slurry is ensured.
Preferably, the white cement is P.II 525 cement. Ensures that the cost of the cured ground stone product is lower, and simultaneously improves the flexural strength and the compressive strength.
The heavy calcium carbonate is abbreviated as heavy calcium carbonate, is prepared by grinding natural carbonate minerals such as calcite, marble and limestone, has the advantages of high chemical purity, large inertia, good dispersibility, low price and the like, and can not only control the whiteness of products, but also reduce the production cost, simultaneously increase the fluidity of white slurry and black slurry, and ensure the toughness and strength of the landplaster when being added into a white slurry formula or a black slurry formula.
Further, the basic powder also comprises mineral powder which is low in price and large in specific surface area, and is added into a white slurry formula or a black slurry formula, and the mineral powder exists in the white slurry or the black slurry in a micro aggregate form, so that the pore structure in the white slurry or the black slurry is improved, the pore diameter is thinned and homogenized, and the compression resistance, tensile resistance, bending resistance and shear strength of the white slurry or the black slurry are improved. Therefore, the cement can replace part of white cement, so that the use amount of the white cement is reduced in the preparation process of the ground stone, and the cement has high performance on the premise of greatly reducing the production cost.
Furthermore, the basic powder material also comprises metakaolin, the metakaolin in a thermodynamic medium state is in a thermodynamic medium state due to irregular molecular arrangement of the metakaolin, water can be used as a mass transfer medium and a reaction medium to obtain an aluminosilicate network-like structure similar to cement, which is mainly composed of ionic bonds and covalent bonds and is auxiliary to Van der Waals bonds, and the aluminosilicate network-like structure has the characteristic of high early strength, and has the compressive strength reaching 15-20 MPa after curing for 4 hours at 20 ℃. Therefore, the metakaolin is added into the white slurry formula or the black slurry formula, so that on one hand, the consumption of white cement can be reduced, and the production cost is reduced; on the other hand, the ground stone can have higher early strength after maintenance; besides, the metakaolin is added into the white slurry formula or the black slurry formula, so that the volume expansion of the ground stone in the curing process can be reduced, the alkali aggregate reaction of the system can be inhibited to a certain extent, and the influence on the ground stone performance is avoided. The alkali aggregate reaction means that specific internal components in the quartz sand and alkali substances in cement are subjected to further chemical reaction under a certain condition, so that the ground paving stone is expanded, cracked and even damaged.
Because the white slurry and the black slurry both contain white cement, heavy calcium carbonate, mineral powder and metakaolin, the problems that if the raw materials are only added into any one of the white slurry or the black slurry, the obtained paving stone is softer because one of the white slurry and the black slurry is free of the raw materials after being mixed, the flexural strength and the compressive strength of the product are reduced, the water absorption rate is increased and the like are avoided, and the performance condition of the final product is influenced.
The bottom layer and the surface layer of the existing ground stone are mainly made of cement and waste residues, in order to reduce production cost, the proportion of the waste residues in the raw material formula is higher, the mechanical property of the waste residues is poorer, the flexural strength and the compressive strength of the existing ground stone are lower, the water absorption is higher, the ground stone is swelled due to excessive water absorption after being used for a period of time, the flexural strength and the compressive strength of the ground stone are further reduced, and the use requirements of the ground stone with high flexural strength, high compressive strength and low water absorption cannot be met.
According to the technical scheme, the white slurry and the black slurry raw materials comprise the cementing raw materials of white cement, heavy calcium carbonate, mineral powder and metakaolin, quartz sand can be well wrapped and bonded, so that the white slurry or the black slurry is bonded to form a whole, and the cured ground paving stone product has high breaking strength, high compressive strength and low water absorbability on the premise that various ink stone textures can be realized, the ground paving stone is ensured to have high performance and low cost, and the defects that the breaking strength and the compressive strength of the ground paving stone in the prior art are low, and the use requirements on the high breaking strength, the high compressive strength and the low water absorbability of the ground paving stone cannot be met are overcome.
Further, the ink texture is obtained by only slightly halation. Therefore, the technical scheme is defined as (38-42) by the mixing proportion of the white sizing agent and the black sizing agent: 1, ensuring the water-ink texture of the ground stone, thereby improving the beauty of the ground stone.
Preferably, in the step C, the mixing ratio of the white slurry to the black slurry is 40: and 1, optimizing the ink texture effect of the ground stone.
More specifically, the paving stone with the ink texture prepared by the scheme is prepared by three steps: firstly, uniformly mixing basic powder, water and a water reducing agent, and then adding quartz sand to uniformly stir to obtain white slurry. Secondly, uniformly mixing the basic powder, water, black pigment and a water reducing agent, and then adding quartz sand to uniformly stir to obtain black paste; the steps for preparing the white slurry and the black slurry are simple, and in the white slurry and the black slurry, the basic powder is added with water and the water reducing agent and uniformly mixed, and then quartz sand is added and uniformly stirred, so that the basic powder with cementing performance can uniformly wrap and bond the quartz sand, and the intensity of the ground stone of a final product is further ensured. Meanwhile, the water reducer is adopted in both the white slurry and the black slurry, so that the use of water can be reduced, the production efficiency is improved, and the cost is saved. In addition, the raw materials of the black slurry are more than the raw materials of the white slurry, so that the black slurry has black pigment, the rest raw materials are the same as the white slurry, and the ink texture stone paving can be prepared under the condition of less raw material types, thereby further improving the production convenience and the processing efficiency.
It should be noted that, the quartz sand may be wet-treated with water in advance, which is favorable for the quartz sand to be more easily wrapped and adhered by the base powder when the wet-treated quartz sand is added to the white slurry or the black slurry formulation, thereby improving the strength of the white slurry or the black slurry.
And finally, pouring the white slurry and the black slurry into a container, stirring the white slurry and the black slurry until the required ink textures appear, pouring the mixture into a mold for curing, and obtaining the floor stone with the ink textures by curing. Besides, the ground stone obtained by the technical scheme is of a whole structure, so that the situation that an upper layer and a lower layer are possibly separated due to the fact that the traditional ground stone adopts a double-layer structure is avoided, and the strength of a ground stone product is further ensured. In this technical solution, the white slurry and the black slurry are alternately arranged at intervals, for example, the white slurry/black slurry/white slurry/black slurry distribution, or the black slurry/white slurry/black slurry/white slurry, and the number of alternations is not limited herein.
Therefore, the scheme utilizes the mutual penetration of the white slurry and the black slurry after stirring, and the mutual implying dyeing, so that the paving stone with the water-ink texture is obtained, the paving stone texture prepared by a die in the prior art is replaced, the performances of high cementing property and low cost of the basic powder are combined, the mixing proportion of the white slurry and the black slurry is controlled, the attractiveness of the paving stone and the randomness and diversity of the paving stone texture are greatly improved, the product cost and the water absorption rate are reduced, and the flexural strength and the compressive strength of the product are improved so as to meet the use requirement.
In addition, the stone paving preparation method is simple, low in cost, high in controllable operability and suitable for further development and industrialization application; the prepared ground stone is of a whole structure, is more attractive, and can be widely applied to pavement engineering in the fields of municipal administration, water conservancy, parks, urban squares and the like.
In the step A, the white slurry raw materials comprise 45-55 parts of white cement, 15-25 parts of heavy calcium carbonate, 15-25 parts of mineral powder, 5-15 parts of metakaolin, 90-137.5 parts of quartz sand, 9-13.75 parts of water and 1-2 parts of water reducer according to parts by weight;
in the step B, the black slurry raw materials comprise 45-55 parts by mass of white cement, 15-25 parts by mass of heavy calcium carbonate, 15-25 parts by mass of mineral powder, 5-15 parts by mass of metakaolin, 90-137.5 parts by mass of quartz sand, 6.75-10.45 parts by mass of water, 0.02-0.04 part by mass of black pigment and 1-2 parts by mass of water reducer.
In a preferred embodiment of the technical scheme, the addition amount of the white cement in the white slurry and the black slurry is limited to 45-55 parts, so that the adhesion and the wrapping of quartz sand in the white slurry and the black slurry are ensured, the performance of a product is ensured, and the cost is also favorably controlled.
When the addition amount of heavy calcium carbonate in the white slurry and the black slurry is 15-25 parts, the obtained ground stone product has high whiteness and high strength, and the cost of the product is controlled, so the technical scheme limits the addition amount of the heavy calcium carbonate in the white slurry and the black slurry to 15-25 parts, and ensures the performance of the product.
Further, in the technical scheme, the addition amount of mineral powder in the white slurry and the black slurry is limited to 15-25 parts, on one hand, due to the performance of the white slurry and the black slurry, part of white cement can be replaced, and the aim of saving cost is achieved; on the other hand, the phenomenon of alkali efflorescence is aggravated and the aesthetic degree of the ground stone is weakened due to the excessively high addition amount of the water-soluble alkali metal salt.
In addition, in the technical scheme, the addition amount of metakaolin in the white slurry and the black slurry is 5-15 parts, so that on one hand, the alkali aggregate reaction is inhibited to the maximum extent, and the occurrence of swelling, cracking and even damage of ground paving stones is avoided, and the appearance and the performance of the product are influenced.
Furthermore, when the addition amount of the water reducer in the white slurry and the black slurry is more than 2 parts, the strength and the water absorbability of the product are reduced, and meanwhile, the cost of the product is increased; when the addition amount of the water reducer in the white slurry and the black slurry is less than 1 part, the water reducing effect is not ideal. Therefore, the addition amount of the water reducer in the white slurry and the black slurry in the technical scheme is limited to 1-2 parts, so that the water reducing effect of the water reducer is ensured, and meanwhile, the performance of a product is ensured.
Further, in the step A, the water-cement ratio of the white slurry is 0.2-0.25 according to the mass ratio;
in the step B, the water-cement ratio of the black slurry is 0.15-0.19 according to the mass ratio.
In a preferred embodiment of the present disclosure, the viscosity of the black paste is made higher than that of the white paste by defining the water-to-ash ratio of the white paste to be higher than that of the black paste, so that the black paste is easier to disperse in the white paste in a stirred state, is easier to halate the boundary, is more favorable for obtaining the ink texture, and improves the randomness and diversity of the ground stone texture.
Preferably, in the step A, the water-cement ratio of the white slurry is 0.2 according to mass;
in the step B, the water-cement ratio of the black slurry is 0.18 according to mass.
Through further optimizing the water-cement ratio of the white slurry and the black slurry, the halation effect is ensured to be optimal, the attractiveness of the ground paving stone is better, and the randomness and the diversity of the ground paving stone texture are higher.
The water-cement ratio is also called water-cement ratio, and refers to the weight ratio of the amount of water in the slurry to the amount of cement.
Further, in the step a, the sand-lime ratio of the white slurry is (2 to 2.5): 1, a step of;
in the step B, the sand-lime ratio of the black slurry is (2-2.5) according to the mass ratio: 1.
in a preferred embodiment of the present technical solution, the ratio of sand to lime of the white slurry and the black slurry is defined as (2 to 2.5): 1, the fluidity of the white slurry and the black slurry is ensured, the density of the cured ground stone is further improved, the strength of the ground stone is further improved, and the water absorption of the ground stone is reduced.
Preferably, in the step a, the white slurry sand-lime ratio is 2:1, a step of;
in the step B, the sand-lime ratio of the black sizing agent is 2:1.
when the sand-lime ratio of the white slurry to the black slurry was 2:1, the ground stone is the most compact, and the air holes of the product are the least, and the performance of the product reaches the best, so the technical scheme has the following sand-lime ratio of white slurry to black slurry of 2: and 1, optimizing the performance of the product.
The sand-lime ratio refers to the weight ratio of quartz sand to white cement in the slurry.
Further, in the step A and the step B, the mesh number of the quartz sand is 70-120 mesh.
In a preferred embodiment of the technical scheme, the mesh number of the quartz sand in the step A and the step B is limited to 70-120 meshes, and the quartz sand has better performance and moderate particle size under the mesh number, thereby being beneficial to improving the fine sense of the ground stone.
Further illustratively, in step B, the black pigment includes iron oxide.
In a preferred embodiment of the present invention, the black pigment comprises iron oxide, which is inexpensive, has good dispersibility and stable performance, and is advantageous for making the ground stone have a waterjet texture, while reducing the cost.
Further described, in the step A and the step B, the water reducer is a polycarboxylic acid water reducer.
In a preferred embodiment of the technical scheme, the water reducing agents are polycarboxylate water reducing agents, so that water consumption can be reduced, the later strength of the ground stone can be improved, and the performance of the product can be ensured.
Further, in the step C, the stirring time in the stirring step is 3 to 5 seconds, and the stirring speed is 300 to 500rpm/min.
In a preferred embodiment of the present disclosure, by limiting the stirring time and the stirring time in the step C, the stirring effect is good, the texture effect of the paving stone is better, and the randomness and diversity of the texture of the paving stone are high.
Further, in the step C, the curing humidity of the curing step is 80-85%, the curing temperature is 30-34 ℃, and the curing time is 24-48 h.
In a preferred embodiment of the present technical solution, the curing humidity, the curing temperature and the curing time in the step C are defined, so that the basic powder in the black slurry and the white slurry fully generate hydration, so that the intensity of the ground paving stone is gradually increased in the curing process, and the ground paving stone after curing is completed has high intensity.
The floor stone with the ink texture is prepared by the preparation method of the floor stone with the ink texture, wherein the flexural strength of the floor stone is more than or equal to 8MPa, the compressive strength of the floor stone is more than or equal to 80MPa, and the water absorption rate of the floor stone is less than or equal to 6.4%.
The technical scheme also provides the land stone with the water-ink texture, which is prepared by the preparation method of the land stone with the water-ink texture, has the water-ink texture effect and has high randomness and diversity of the land stone texture; meanwhile, the flexural strength is more than or equal to 8MPa, the compressive strength is more than or equal to 80MPa, the water absorption rate is less than or equal to 6.4%, and the high flexural strength, the high compressive strength and the low water absorption are realized.
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
A. Uniformly mixing 45 parts of white cement, 25 parts of heavy calcium carbonate, 25 parts of mineral powder, 15 parts of metakaolin, 10 parts of water and 2 parts of polycarboxylate superplasticizer, and then adding 90 parts of quartz sand with the mesh number of 70 meshes, and uniformly stirring to obtain white slurry;
B. uniformly mixing 45 parts of white cement, 25 parts of heavy calcium carbonate, 25 parts of mineral powder, 15 parts of metakaolin, 7 parts of water, 0.02 part of ferric oxide and 2 parts of polycarboxylate superplasticizer, and then adding 90 parts of quartz sand with the mesh number of 70 meshes, and uniformly stirring to obtain black sizing agent;
C. pouring the white slurry and the black slurry into a container, rapidly stirring for 3s at a stirring speed of 300rpm/min, pouring into a mold, and curing for 24h at a temperature of 30 ℃ with humidity of 80%, thereby obtaining the ground stone with the ink texture; the mixing ratio of the white slurry to the black slurry is 38:1, the brick surface effect is shown in figure 1.
Example 2
A. Uniformly mixing 50 parts of white cement, 15 parts of heavy calcium carbonate, 20 parts of mineral powder, 10 parts of metakaolin, 10 parts of water and 1 part of polycarboxylate superplasticizer, and then adding 100 parts of quartz sand with 80 meshes and uniformly stirring to obtain white slurry;
B. uniformly mixing 50 parts of white cement, 20 parts of heavy calcium carbonate, 15 parts of mineral powder, 15 parts of metakaolin, 9 parts of water, 0.03 part of ferric oxide and 1 part of polycarboxylate superplasticizer, and then adding 100 parts of quartz sand with 80 meshes and uniformly stirring to obtain black sizing agent;
C. pouring the white slurry and the black slurry into a container, rapidly stirring for 3s at a stirring speed of 400rpm/min, pouring into a mold, and curing for 36h at a temperature of 32 ℃ with a humidity of 85%, thereby obtaining the ground stone with the ink texture; the mixing ratio of the white slurry to the black slurry is 40:1.
example 3
A. Mixing 55 parts of white cement, 20 parts of heavy calcium carbonate, 15 parts of mineral powder, 15 parts of metakaolin, 13 parts of water and 1 part of polycarboxylate superplasticizer uniformly, and adding 120 parts of quartz sand with the mesh number of 100 meshes, and stirring uniformly to obtain white slurry;
B. mixing 55 parts of white cement, 15 parts of heavy calcium carbonate, 20 parts of mineral powder, 15 parts of metakaolin, 9 parts of water, 0.03 part of ferric oxide and 1 part of polycarboxylate superplasticizer uniformly, and adding 120 parts of quartz sand with the mesh number of 100 meshes, and stirring uniformly to obtain black sizing agent;
C. pouring the white slurry and the black slurry into a container, rapidly stirring for 4s at a stirring speed of 400rpm/min, pouring into a mold, and curing for 36h at a temperature of 33 ℃ with a humidity of 83%, thereby obtaining the land stone with the ink texture; the mixing ratio of the white slurry to the black slurry is 40:1.
example 4
A. Mixing 55 parts of white cement, 20 parts of heavy calcium carbonate, 20 parts of mineral powder, 10 parts of metakaolin, 12 parts of water and 1.5 parts of polycarboxylate superplasticizer uniformly, and adding 130 parts of quartz sand with 120 meshes, and stirring uniformly to obtain white slurry;
B. mixing 55 parts of white cement, 20 parts of heavy calcium carbonate, 20 parts of mineral powder, 10 parts of metakaolin, 9 parts of water, 0.04 part of ferric oxide and 1.5 parts of polycarboxylate superplasticizer uniformly, and adding 130 parts of 120-mesh quartz sand and stirring uniformly to obtain black sizing agent;
C. pouring the white slurry and the black slurry into a container, rapidly stirring for 5s at a stirring speed of 500rpm/min, pouring into a mold, and curing for 48h at a temperature of 34 ℃ with a humidity of 85%, thereby obtaining the land stone with the ink texture; the mixing ratio of the white slurry to the black slurry is 42:1.
the prepared ground stones were prepared by using the preparation methods in the above examples, respectively, the surface effects of the prepared ground stones were observed, and the obtained ground stones were subjected to flexural strength, compressive strength, water absorption and anti-slip value performance tests using the test method of GBT 28635-2012 concrete pavement brick, and compared with the performances of the ground stones made of the conventional double-layered cloth (manufacturer: guangdong peng control stock company, model: GD-1003), the results of which are shown in table 1 below.
TABLE 1 results of related Performance test of the floor-paving
As can be seen from the performance test results of Table 1, the paving stone with the ink texture prepared by the preparation method of the paving stone with the ink texture has the ink texture effect, the flexural strength is more than or equal to 8MPa, the compressive strength is more than or equal to 80MPa, and the water absorption rate is less than or equal to 6.4%. Besides, all performance test indexes are superior to those of the traditional double-layer cloth ground stone, so that the attractiveness and performance of the traditional ground stone are improved.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (10)
1. A method for preparing a land stone with ink textures, which is characterized by comprising the following steps:
A. uniformly mixing the basic powder, water and a water reducing agent, and then adding quartz sand to uniformly stir to obtain white slurry;
B. uniformly mixing the basic powder, water, black pigment and a water reducing agent, and then adding quartz sand to uniformly stir to obtain black paste;
C. pouring the white slurry and the black slurry into a container, stirring the white slurry and the black slurry until the required ink textures appear, pouring the mixture into a mould for curing, and curing to obtain the land stone with the ink textures;
in the step A and the step B, the basic powder comprises white cement, heavy calcium carbonate, mineral powder and metakaolin; and in the step C, the mixing ratio of the white slurry to the black slurry is (38-42) according to the mass ratio: 1.
2. the method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in the step A, the white slurry raw materials comprise 45-55 parts of white cement, 15-25 parts of heavy calcium carbonate, 15-25 parts of mineral powder, 5-15 parts of metakaolin, 90-137.5 parts of quartz sand, 9-13.75 parts of water and 1-2 parts of water reducer according to parts by weight;
in the step B, the black slurry raw materials comprise 45-55 parts by mass of white cement, 15-25 parts by mass of heavy calcium carbonate, 15-25 parts by mass of mineral powder, 5-15 parts by mass of metakaolin, 90-137.5 parts by mass of quartz sand, 6.75-10.45 parts by mass of water, 0.02-0.04 part by mass of black pigment and 1-2 parts by mass of water reducer.
3. The method for preparing the floor stone with the ink texture according to claim 2, wherein the method comprises the following steps of: in the step A, the water-cement ratio of the white slurry is 0.2-0.25 according to the mass ratio;
in the step B, the water-cement ratio of the black slurry is 0.15-0.19 according to the mass ratio.
4. The method for preparing the floor stone with the ink texture according to claim 2, wherein the method comprises the following steps of: in the step A, the sand-lime ratio of the white slurry is (2-2.5) according to the mass ratio: 1, a step of;
in the step B, the sand-lime ratio of the black slurry is (2-2.5) according to the mass ratio: 1.
5. the method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in the step A and the step B, the mesh number of the quartz sand is 70-120 meshes.
6. The method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in step B, the black pigment comprises iron oxide.
7. The method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in the step A and the step B, the water reducer is a polycarboxylate water reducer.
8. The method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in the step C, the stirring time of the stirring step is 3-5 s, and the stirring speed is 300-500 rpm/min.
9. The method for preparing the floor stone with the ink texture according to claim 1, wherein the method comprises the following steps of: in the step C, the curing humidity in the curing step is 80-85%, the curing temperature is 30-34 ℃ and the curing time is 24-48 h.
10. A land stone with ink textures, which is prepared by the preparation method of the land stone with ink textures, wherein the breaking strength of the land stone is more than or equal to 8MPa, the compressive strength is more than or equal to 80MPa, and the water absorption rate is less than or equal to 6.4%.
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