CN114349530B - Water permeable brick based on waste stone powder and preparation process thereof - Google Patents
Water permeable brick based on waste stone powder and preparation process thereof Download PDFInfo
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- CN114349530B CN114349530B CN202210104758.4A CN202210104758A CN114349530B CN 114349530 B CN114349530 B CN 114349530B CN 202210104758 A CN202210104758 A CN 202210104758A CN 114349530 B CN114349530 B CN 114349530B
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- 239000002699 waste material Substances 0.000 title claims abstract description 89
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 239000000843 powder Substances 0.000 title claims abstract description 80
- 239000004575 stone Substances 0.000 title claims abstract description 69
- 239000011449 brick Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000010455 vermiculite Substances 0.000 claims abstract description 52
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 52
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 52
- 239000002131 composite material Substances 0.000 claims abstract description 42
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 25
- 239000011230 binding agent Substances 0.000 claims abstract description 22
- 239000010881 fly ash Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000011398 Portland cement Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 52
- 238000005245 sintering Methods 0.000 claims description 45
- 238000000465 moulding Methods 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 20
- 229910021641 deionized water Inorganic materials 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 20
- 239000008187 granular material Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000003469 silicate cement Substances 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 10
- 238000007873 sieving Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- 229920005862 polyol Polymers 0.000 claims description 7
- 150000003077 polyols Chemical class 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 claims description 2
- 229910001863 barium hydroxide Inorganic materials 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 2
- 230000035699 permeability Effects 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000047 product Substances 0.000 description 8
- 238000011160 research Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 3
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 3
- -1 methyl hydroxypropyl Chemical group 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Road Paving Structures (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a water permeable brick based on waste stone powder and a preparation process thereof, wherein the water permeable brick comprises the following raw materials in parts by weight: 100-500 parts of waste stone powder, 50-100 parts of vermiculite composite material, 100-300 parts of Portland cement, 80-100 parts of fly ash, 40-80 parts of binder, 28-35 parts of ceramsite and 30-50 parts of waste porcelain particles, and the ceramic powder is sintered at high pressure and high temperature, wherein the compressive strength reaches more than 50Mpa, and the flexural strength reaches more than 9.0 Mpa; has good water permeability and excellent safety anti-skid property, and the anti-skid value of the anti-skid agent reaches more than BPN 70.
Description
Technical Field
The invention relates to the field of building materials, in particular to a water permeable brick based on waste stone powder and a preparation process thereof.
Background
The stone powder is a regional natural raw material, has wide distribution range, low production and processing cost and wide research application. With the rapid development of infrastructure construction in civil engineering, water conservancy and traffic industries in recent years, construction scale and field are rapidly enlarged, the main trend of the machine-made sand gradually replacing natural sand becomes increasingly obvious, so that stone powder utilization problems are increasingly outstanding, and in addition, the traditional high-quality mineral admixtures such as slag, fly ash and the like are increasingly scarce, so that research and application of rock powder have become a necessary trend.
In recent years, in order to meet the requirements of energy conservation and environmental protection, the recycling technology of stone powder waste is greatly developed, and the recycling technology is a necessary development trend. At present, the research on the recycling technology of stone powder wastes is mainly focused on the aspects of manufacturing the waste stone powder into building materials and the like. Although research shows that the waste stone powder is added into the polymer after being subjected to activation treatment or particle micronization treatment to replace part of additives to improve the mechanical properties of the polymer, the application research of the waste stone powder in polymer modification still has more problems. For small and medium stone processing enterprises, the comprehensive recycling pressure of the waste stone powder is not quite large, but in the long term, the development of related recycling technology is still necessary.
Stone powder has been widely used as fine aggregate in concrete and other low added value building materials, but the application research in high added value building materials is not so much; the application of stone dust waste to polymer modification is less studied. By reviewing and analyzing the research current situation of the comprehensive recycling technology of stone powder waste, the comprehensive recycling of stone powder waste still has larger problems and a research space. The novel brick material is a trend to replace solid clay bricks, the stone powder brick prepared by mixing stone powder as a main raw material is a typical representative of novel wall materials, and the environment-friendly stone powder brick has more remarkable excellent performances in various aspects of environmental protection, no damage to cultivated land, energy conservation and the like, and is the best choice for urban and rural buildings. The stone powder is applied to the water permeable brick, which is beneficial to environmental protection, but the prepared water permeable brick has lower performance, poor fracture resistance and compressive strength, low water permeability and obvious cracks in the sintering process.
Disclosure of Invention
Accordingly, the invention provides the water permeable brick based on the waste stone powder and the preparation process thereof, and the problems are solved.
The technical scheme of the invention is realized as follows: a water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 100-500 parts of waste stone powder, 50-100 parts of vermiculite composite material, 100-300 parts of Portland cement, 80-100 parts of fly ash, 40-80 parts of binder, 28-35 parts of ceramsite and 30-50 parts of waste porcelain particles, wherein the binder is polyether polyol resin powder and/or water-soluble urea phenolic resin powder, and the binder reacts with aggregate particles in situ to generate a high-temperature binder in the sintering process, so that the particles of the water permeable brick aggregate are bonded together.
Further described, the water permeable brick based on the waste stone powder comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of silicate cement, 90 parts of fly ash, 60 parts of binder, 30 parts of ceramsite and 40 parts of waste porcelain granules, wherein the binder is methyl hydroxyethyl cellulose and/or methyl hydroxypropyl cellulose.
Further, the vermiculite composite material is prepared by washing vermiculite with deionized water for 2-4 times, drying at 150-200 ℃ for 2-6 hours, crushing, sieving with a 120-200 mesh sieve, adding alkaline substances for activation, refluxing at 20-40 ℃ for 3-10 hours, washing with deionized water to be neutral, drying in an oven at 150-200 ℃ for 2-6 hours, and taking out.
Further, the alkaline substance is any one of sodium hydroxide, calcium hydroxide, barium hydroxide, and potassium hydroxide.
Further describing, the preparation process of the water permeable brick based on the waste stone powder is characterized in that: the method comprises the following steps:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 1-3mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring to obtain a mixed material A;
s3, adding the binder into the mixed material A, and uniformly stirring while adding the binder to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, and putting the ceramsite and the waste porcelain granules into a stirrer for stirring to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
s6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 60-100 MPa, controlling the sintering temperature rising rate to be 4-8 ℃/min, preserving heat for 30-40 min after sintering to 1000-1400 ℃, and cooling the molding blank at the cooling rate of 5-8 ℃/min to obtain the finished product of the water permeable brick.
Further, the stirring speed of the S2 is 400-600 rpm, and the stirring time is 15-40 min.
Further, the stirring speed of the S3 is 700-1000 rpm, and the stirring time is 8-15 min.
Further, the stirring speed of the S4 is 300-500 rpm, and the stirring time is 15-40 min.
Compared with the prior art, the invention has the beneficial effects that:
the water permeable brick is formed by high-pressure and high-temperature sintering, the strength of the water permeable brick is obviously higher than that of other water permeable paving materials, the compressive strength of the water permeable brick reaches more than 50Mpa, and the flexural strength of the water permeable brick is more than 9.0 Mpa; the water permeable pavement has good water permeability, can quickly permeate rainwater, can quickly permeate the ground to keep the ground water level when raining, can evaporate back to the atmosphere when weather is hot, so that air keeps certain humidity, is favorable for protecting soil and vegetation, has excellent safety anti-skid property, the anti-skid value reaches more than BPN70, and the water permeable pavement is good, so that the pavement is not easy to accumulate water, is not easy to slip in rainy and snowy days, and improves the safety and comfort of pedestrians.
Detailed Description
In order to better understand the technical content of the present invention, the following provides specific examples to further illustrate the present invention.
The experimental methods used in the embodiment of the invention are conventional methods unless otherwise specified.
Materials, reagents, and the like used in the examples of the present invention are commercially available unless otherwise specified.
Example 1
A water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 100 parts of waste stone powder, 50 parts of vermiculite composite material, 100 parts of Portland cement, 80 parts of fly ash, 40 parts of water-soluble urea phenolic resin powder, 28 parts of ceramsite and 30 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 2 times, drying at 150 ℃ for 2 hours, crushing, sieving with a 120-mesh sieve, adding calcium hydroxide for activation, refluxing at 20 ℃ for 3 hours, washing with deionized water to be neutral, drying at 150 ℃ for 2 hours in an oven, and taking out to obtain the vermiculite composite material;
example 2
A water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 500 parts of waste stone powder, 100 parts of vermiculite composite material, 300 parts of Portland cement, 100 parts of fly ash, 80 parts of water-soluble urea phenolic resin powder, 35 parts of ceramsite and 50 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 4 times, drying at 200 ℃ for 6 hours, crushing, sieving with a 200-mesh sieve, adding sodium hydroxide for activation, refluxing at 40 ℃ for 10 hours, washing with deionized water to be neutral, drying at 200 ℃ in an oven for 6 hours, and taking out to obtain the vermiculite composite material;
example 3
A water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of Portland cement, 90 parts of fly ash, 60 parts of polyether polyol resin powder, 30 parts of ceramsite and 40 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to be neutral, drying at 180 ℃ for 4 hours in an oven, and taking out to obtain the vermiculite composite material;
the water permeable bricks of the above examples 1 to 3 were prepared by the following method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 500rpm for 30min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding, wherein the stirring speed is 900rpm, and the stirring time is 12min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at the stirring speed of 400rpm for 30min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 80MPa, controlling the sintering heating rate to be 6 ℃/min, preserving heat for 35min after sintering to 1200 ℃, and cooling the molding blank at the cooling rate of 7 ℃/min to obtain the finished product of the water permeable brick.
Example 4
A water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of Portland cement, 90 parts of fly ash, 60 parts of polyether polyol resin powder, 30 parts of ceramsite and 40 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to be neutral, drying at 180 ℃ for 4 hours in an oven, and taking out to obtain the vermiculite composite material;
the water permeable brick adopts the following preparation method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 400rpm for 15min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding, wherein the stirring speed is 700rpm, and stirring for 8min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at the stirring speed of 300rpm for 15min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 60MPa, controlling the sintering heating rate to be 4 ℃/min, preserving heat for 30min after sintering to 1000 ℃, and cooling the molding blank at the cooling rate of 5 ℃/min to obtain the finished product of the water permeable brick.
Example 5
A water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of Portland cement, 90 parts of fly ash, 60 parts of polyether polyol resin powder, 30 parts of ceramsite and 40 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to be neutral, drying at 180 ℃ for 4 hours in an oven, and taking out to obtain the vermiculite composite material;
the water permeable brick adopts the following preparation method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 600rpm for 40min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding the binder, wherein the stirring speed is 1000rpm, and stirring for 15min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at 500rpm for 40min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
s6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 100MPa, controlling the sintering heating rate to be 8 ℃/min, preserving heat for 40min after sintering to 1400 ℃, and cooling the molding blank at the cooling rate of 8 ℃/min to obtain a finished product of the water permeable brick.
Comparative example 1
The comparison example and the example 3 are different in that the water permeable brick based on waste stone powder comprises the following raw materials in parts by weight: 600 parts of waste stone powder, 40 parts of vermiculite composite material, 350 parts of silicate cement, 120 parts of fly ash, 20 parts of polyether polyol resin powder, 20 parts of ceramsite and 320 parts of waste porcelain particles; the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to neutrality, drying in an oven at 180 ℃ for 4 hours, and taking out to obtain the vermiculite composite material;
the water permeable brick adopts the following preparation method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 500rpm for 30min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding, wherein the stirring speed is 900rpm, and the stirring time is 12min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at the stirring speed of 400rpm for 30min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 80MPa, controlling the sintering heating rate to be 6 ℃/min, preserving heat for 35min after sintering to 1200 ℃, and cooling the molding blank at the cooling rate of 7 ℃/min to obtain the finished product of the water permeable brick.
Comparative example 2
The difference between the comparative example and the example 3 is that the raw materials of the water permeable brick do not contain vermiculite composite material, and the water permeable brick specifically comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 200 parts of Portland cement, 90 parts of fly ash, 60 parts of polyether polyol resin powder, 30 parts of ceramsite and 40 parts of waste porcelain particles, wherein the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to neutrality, drying at 180 ℃ in an oven for 4 hours, and taking out to obtain the vermiculite composite material;
the water permeable brick adopts the following preparation method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 500rpm for 30min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding, wherein the stirring speed is 900rpm, and the stirring time is 12min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at the stirring speed of 400rpm for 30min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 80MPa, controlling the sintering heating rate to be 6 ℃/min, preserving heat for 35min after sintering to 1200 ℃, and cooling the molding blank at the cooling rate of 7 ℃/min to obtain the finished product of the water permeable brick.
Comparative example 3
The difference between the comparative example and the example 3 is that the water permeable brick binder is equal amount of methyl hydroxypropyl cellulose, specifically 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of silicate cement, 90 parts of fly ash, 60 parts of methyl hydroxypropyl cellulose, 30 parts of ceramsite and 40 parts of waste porcelain particles;
the vermiculite composite material is prepared by washing vermiculite with deionized water for 3 times, drying at 180 ℃ for 4 hours, crushing, sieving with a 160-mesh sieve, adding alkaline substances for activation, refluxing at 30 ℃ for 7 hours, washing with deionized water to neutrality, drying in an oven at 180 ℃ for 4 hours, and taking out to obtain the vermiculite composite material;
the water permeable brick adopts the following preparation method:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 2mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring at 500rpm for 30min to obtain a mixed material A;
s3, adding the binder into the mixed material A, uniformly stirring while adding, wherein the stirring speed is 900rpm, and the stirring time is 12min to obtain a mixed material B;
s4, taking ceramsite and waste porcelain granules, putting the ceramsite and the waste porcelain granules into a stirrer, stirring at the stirring speed of 400rpm for 30min to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the molding blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 80MPa, controlling the sintering heating rate to be 6 ℃/min, preserving heat for 35min after sintering to 1200 ℃, and cooling the molding blank at the cooling rate of 7 ℃/min to obtain the finished product of the water permeable brick.
1. Finished product performance index detection
The water permeable bricks prepared in examples 1 to 5 and comparative examples 1 to 3 were cut into 50 mm. Times.50 mm. Times.150 mm according to the method of JC/T945-2005, the compressive strength, flexural strength, water retention property and water permeability coefficient (water temperature 15 ℃ C.) were measured, the sintered crack rate was measured on the water permeable bricks obtained in the step of sintering, and the (wet) slip resistance was measured by the method of the pendulum type slip resistance test specified in national Standard "concrete pavement brick" GB/T28635, and the test results were as follows:
from the results, the compressive strength of the water permeable brick reaches more than 50Mpa, and the flexural strength of the water permeable brick is more than 9.0 Mpa; the water permeability is good, the highest water permeability reaches 0.099cm/s, the rainwater can be quickly permeated, the rainfall of 60mm/h can be resisted, the water retention is strong, the rainwater can be efficiently absorbed, the water accumulation and the icing on the road surface can be prevented, and the ceramic particles and the waste ceramic particles added into the water can have excellent safety and skid resistance, and the skid resistance value of the water-proof agent reaches more than BPN 70; compared with comparative example 1, the water permeable brick can achieve better performance effect under proper proportion, particularly the proportion between waste stone powder and vermiculite composite material, and compared with comparative example 2, the vermiculite composite material is combined with stone powder after being activated by a specific process, so that the compression resistance and the flexural strength of the water permeable brick are effectively enhanced, and the water permeability and the water retention property of the water permeable brick are also improved; compared with comparative example 3, the adhesive of the invention has strong permeability and durability, improves the bonding strength of the water permeable brick, and effectively reduces cracks or fissures in the processes of sintering hardening and drying shrinkage.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a water permeable brick based on old and useless stone powder which characterized in that: the material comprises the following raw materials in parts by weight: 100-500 parts of waste stone powder, 50-100 parts of vermiculite composite material, 100-300 parts of Portland cement, 80-100 parts of fly ash, 40-80 parts of binder, 28-35 parts of ceramsite and 30-50 parts of waste porcelain particles, wherein the binder is polyether polyol resin powder and/or water-soluble urea phenolic resin powder, the vermiculite composite material is prepared by washing vermiculite with deionized water for 2-4 times, drying at 150-200 ℃ for 2-6 hours, crushing, sieving with a 120-200 mesh sieve, adding alkaline substances for activation, refluxing for 3-10 hours at 20-40 ℃, washing to neutrality with deionized water, drying at 150-200 ℃ for 2-6 hours in an oven, and taking out to obtain the vermiculite composite material.
2. The water permeable brick based on waste stone powder as claimed in claim 1, wherein: the material comprises the following raw materials in parts by weight: 300 parts of waste stone powder, 80 parts of vermiculite composite material, 200 parts of silicate cement, 90 parts of fly ash, 60 parts of binder, 30 parts of ceramsite and 40 parts of waste porcelain particles.
3. The water permeable brick based on waste stone powder as claimed in claim 1, wherein: the alkaline substance is any one of sodium hydroxide, calcium hydroxide, barium hydroxide and potassium hydroxide.
4. A process for preparing water permeable bricks based on waste stone powder as claimed in any one of claims 1 to 3, wherein: the method comprises the following steps:
s1, crushing waste stone powder to obtain fine aggregate with the particle size of 1-3mm for later use;
s2, mixing the crushed waste stone powder, vermiculite composite material, silicate cement and fly ash, and stirring to obtain a mixed material A;
s3, adding the binder into the mixture A, and stirring uniformly while adding the binder to obtain a mixture B;
s4, taking ceramsite and waste porcelain granules, and putting the ceramsite and the waste porcelain granules into a stirrer for stirring to obtain a mixed material C;
s5, pouring the mixed material B into a die, compacting, adding the mixed material C, vibrating and molding, and demolding to obtain a molded blank;
and S6, placing the formed blank under a sintering furnace for sintering, controlling the pressure of the sintering furnace to be 60-100 MPa, controlling the sintering temperature rising rate to be 4-8 ℃/min, preserving heat for 30-40 min after sintering to 1000-1400 ℃, and cooling the formed blank at the cooling rate of 5-8 ℃/min to obtain a finished product of the water permeable brick.
5. The process for preparing the water permeable brick based on the waste stone powder as claimed in claim 4, wherein the process comprises the following steps: and the stirring speed of the S2 is 400-600 rpm, and the stirring time is 15-40 min.
6. The process for preparing the water permeable brick based on the waste stone powder as claimed in claim 4, wherein the process comprises the following steps: and the stirring speed of the S3 is 700-1000 rpm, and the stirring time is 8-15 min.
7. The process for preparing the water permeable brick based on the waste stone powder as claimed in claim 4, wherein the process comprises the following steps: and the stirring speed of the S4 is 300-500 rpm, and the stirring time is 15-40 min.
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| CN101337795A (en) * | 2008-08-07 | 2009-01-07 | 苏州华佳新型建材有限公司 | Ecological multifunction pervious floor tile and method for manufacturing same |
| CN105731907A (en) * | 2015-12-31 | 2016-07-06 | 文登蓝岛建筑工程有限公司 | Floor tile with super strong water penetrating performance and preparation method thereof |
| CN106220143A (en) * | 2016-07-25 | 2016-12-14 | 滁州市瑞景园林建设有限公司 | A kind of low cost wall brick |
| CN106630825B (en) * | 2016-12-15 | 2019-04-26 | 广东清大同科环保技术有限公司 | A kind of composite water permeable brick and preparation method thereof |
| CN109694232A (en) * | 2017-10-23 | 2019-04-30 | 陈添就 | A kind of Ceramic water-permeable brick |
| CN108164224B (en) * | 2018-03-27 | 2020-12-18 | 上海拜石实业发展有限公司 | Preparation method of environment-friendly pervious concrete for highway engineering |
| CN108516758A (en) * | 2018-04-04 | 2018-09-11 | 保山保农农业开发股份有限公司 | A kind of farmland drainage ditch colorful water-permeable brick body |
| CN108706959A (en) * | 2018-06-06 | 2018-10-26 | 湖南工程学院 | A kind of water-permeable brick and its manufacturing method |
| CN109721295A (en) * | 2019-02-20 | 2019-05-07 | 谭九香 | A kind of preparation method of ceramic water-permeable brick |
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