CN112723812A - Solid waste based sulpho-aluminum series cementing material/phenolic resin composite material and preparation method thereof - Google Patents
Solid waste based sulpho-aluminum series cementing material/phenolic resin composite material and preparation method thereof Download PDFInfo
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- CN112723812A CN112723812A CN202011638829.6A CN202011638829A CN112723812A CN 112723812 A CN112723812 A CN 112723812A CN 202011638829 A CN202011638829 A CN 202011638829A CN 112723812 A CN112723812 A CN 112723812A
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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
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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
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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
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent 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
- 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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- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a solid waste based sulphoaluminate cementing material/phenolic resin composite material and a preparation method thereof, wherein the solid waste based sulphoaluminate cementing material is mixed with an absolute ethyl alcohol solution of phenolic resin, a plasticizer is added in the mixing process to obtain a mixture, the mixture is subjected to hot press molding to obtain a primary material, and the primary material is subjected to high-temperature curing to obtain the composite material; the temperature of hot press molding is 140-200 ℃, the temperature of high-temperature curing is 140-200 ℃, and the solid waste group sulpho-aluminum series cementing material is prepared by calcining desulfurized gypsum, aluminum ash, carbide slag and coal gangue. The composite material provided by the invention has the advantages of compact structure, low porosity, small pore diameter, excellent mechanical properties, especially excellent compressive strength, and good low-temperature performance, and can be applied at low temperature.
Description
Technical Field
The invention belongs to the field of building materials, and relates to a solid waste based sulpho-aluminum series cementing material/phenolic resin composite material and a preparation method thereof.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The cement-based composite material takes cement as a matrix, and various additives are added, so that the composite material has corresponding performance. Chinese patent CN201611176546.8 discloses a graphene-cement based high thermal conductivity composite material, which is prepared by using portland cement as a matrix and adding graphene, and aims to improve the thermal conductivity of the composite material, so that the composite material is suitable for the field of multifunctional building materials. Chinese patent CN201710448287.8 discloses a method for preparing a low-cement-ratio high-strength cement-based board, which improves the density of the material and reduces the porosity of the material by adjusting the proportion of cement and water, thereby improving the water resistance, the erosion resistance and the freezing resistance of the material. However, through the research of the inventor, the composite materials all use portland cement as a matrix, and the porosity is reduced to a small extent, so that the strength of the composite material is poor, and the low-temperature performance of the composite material is poor.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a solid waste based sulpho-aluminum series cementing material/phenolic resin composite material and a preparation method thereof.
In order to achieve the purpose, the technical scheme of the invention is as follows:
on the one hand, the preparation method of the solid waste based sulphoaluminate cementing material/phenolic resin composite material comprises the steps of mixing the solid waste based sulphoaluminate cementing material with an absolute ethyl alcohol solution of phenolic resin, adding a plasticizer in the mixing process to obtain a mixture, carrying out hot press molding on the mixture to obtain a primary material, and carrying out high-temperature curing on the primary material to obtain the solid waste based sulphoaluminate cementing material/phenolic resin composite material; the temperature of hot press molding is 140-200 ℃, the temperature of high-temperature curing is 140-200 ℃, and the solid waste group sulpho-aluminum series cementing material is prepared by calcining desulfurized gypsum, aluminum ash, carbide slag and coal gangue.
The solid waste-based sulphoaluminate gelled material has the characteristics of early strength, frost resistance, high strength and the like, so the solid waste-based sulphoaluminate gelled material is adopted as a matrix, and meanwhile, in order to reduce the porosity of the material, the density of the material is improved by adopting a hot-press forming mode. The solid waste based sulpho-aluminium gelled material has the early strength characteristic, namely the solid waste based sulpho-aluminium gelled material can be rapidly hardened after being mixed with water. To maintain the workability of the cement, an appropriate amount of water is added during the mixing process. The residual voids in the hardened paste are either trapped air bubbles or voids left after the excess water is removed. The cement still has considerable porosity after complete hydration. Therefore, the phenolic resin is added in the preparation process, and water is not added in the whole preparation process, so that the hot press molding is carried out.
The phenolic resin is added in the preparation process, the phenolic resin is cured at the temperature of more than 140 ℃ to form a water-insoluble three-dimensional network structure, and the resin with the network structure has better thermal stability than other polymers, so that the performance of the composite material is improved. Meanwhile, the curing essence of the phenolic resin is polycondensation, water is released in the polycondensation process, and the released water meets the hydration use of the solid waste-based sulpho-aluminum cementing material, so that water is prevented from being added in the cement mixing and forming process. In addition, the invention adopts absolute ethyl alcohol to dissolve the phenolic resin, so that the solid waste aluminum sulfide series gel material and the phenolic resin can be better mixed, and the purpose of adding the plasticizer is better molding.
The ordinary cement-based composite material is added with excessive water to ensure the fluidity of the material, but after excessive water in the curing process (including initial curing and final curing) is volatilized, pores are still formed, and the strength is reduced. The invention avoids adding water, and the absolute ethyl alcohol can be completely removed in the mixing and hot pressing processes, thereby improving the compactness of the composite material and reducing the porosity of the composite material.
The solid waste based sulpho-aluminum cementing material adopted by the invention contains more Ca2+And Al3+Can be ionically combined with phenolic resin to form a more compact structure, thereby leading the composite material to have higher strength.
On the other hand, the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material is obtained by the preparation method.
The composite material prepared by the invention has high strength, particularly compressive strength which can reach more than 120MPa, so that in the third aspect, the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material is applied to building members.
The invention has the beneficial effects that:
1. the invention adopts the solid waste group sulpho-aluminum series cementing material and the phenolic resin to compound, utilizes hot pressing, avoids relatively large gaps and defects generated by residual and insufficient mixing of air, has compact structure, low porosity and small aperture, and greatly improves the strength of the composite material.
2. The solid waste based sulpho-aluminum series cementing material/phenolic resin composite material prepared by the invention has excellent water resistance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a process flow diagram of a method for preparing a solid waste based sulpho-aluminum based cementitious material/phenolic resin composite material in example 1 of the present invention.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In view of the fact that the existing cement-based composite material takes portland cement as a matrix and has high porosity, the invention provides a solid waste-based sulpho-aluminum series cementing material/phenolic resin composite material and a preparation method thereof.
The invention provides a typical implementation mode of a solid waste based sulphoaluminate cementing material/phenolic resin composite material, which is prepared by mixing the solid waste based sulphoaluminate cementing material with an absolute ethyl alcohol solution of phenolic resin, adding a plasticizer in the mixing process to obtain a mixture, carrying out hot press molding on the mixture to obtain a primary material, and carrying out high-temperature curing on the primary material; the temperature of hot press molding is 140-200 ℃, the temperature of high-temperature curing is 140-200 ℃, and the solid waste group sulpho-aluminum series cementing material is prepared by calcining desulfurized gypsum, aluminum ash, carbide slag and coal gangue.
Firstly, the invention takes the solid waste group sulpho-aluminum series gelled material as a matrix, so that the composite material has the advantages of high strength, freezing resistance and the like. Secondly, the phenolic resin is added in the invention, and hot pressing is carried out at the temperature of more than 140 ℃, so that an insoluble and infusible three-dimensional network structure is formed, the overall performance of the composite material is improved, water is avoided, and the influence of the early strength characteristic of the solid waste aluminum sulfide series gelled material on hot press molding is prevented. And thirdly, the anhydrous ethanol is added, so that the solid waste-based sulpho-aluminum gelled material and the phenolic resin are better mixed and can be completely removed in the mixing and hot-pressing processes, and the compactness of the composite material is improved. According to the invention, the solid waste aluminum sulfide series gel material and the phenolic resin are subjected to hot press molding at the temperature of more than 140 ℃, so that the solid waste aluminum sulfide series gel material and the phenolic resin are compounded under the condition of no water addition, the structure is compact, the porosity is low, the pore diameter is small, and the composite material has excellent performance.
In some examples of this embodiment, the solid waste based aluminum sulfide series binding material is 100% by mass, and the mass percentages of other components in the solid waste based aluminum sulfide series binding material are: 8-15% of phenolic resin, 4-8% of absolute ethyl alcohol and 1-3% of glycerol.
In some examples of this embodiment, the desulfurized gypsum, the aluminum ash, the carbide slag, and the coal gangue are ground, mixed, and calcined to obtain the solid waste-based sulpho-aluminum-based cementitious material.
In some examples of this embodiment, the calcination temperature is 1250 to 1300 ℃ and the calcination time is 1.8 to 2 hours.
In some embodiments of the embodiment, the mass ratio of the desulfurized gypsum to the aluminum ash to the carbide slag to the coal gangue is 2-3: 2-3: 3-4: 3 to 4.
In some embodiments of this embodiment, the plasticizer is glycerin.
In some examples of this embodiment, the hot press forming time is 15 to 30 min.
In some examples of this embodiment, the pressure of the hot press molding is 6 to 8 MPa.
In some examples of this embodiment, the high temperature curing time is 20 to 30 hours.
In some examples of this embodiment, the mixing is performed by hand mixing, stirring with a blender, and shearing with an open mill.
The two rollers of the open mill have different rotating speeds, and the rolling and shearing dual functions generated by the rollers ensure that the organic polymer and the cement are mixed uniformly in a short time, thereby increasing the contact between the components.
In one or more embodiments, the plasticizer is added while the mill is shear stirred.
In one or more embodiments, the stirring time of the stirrer is 200 to 400 seconds.
In one or more embodiments, the open time of the open mill is 5-6 min.
In some examples of this embodiment, the solid waste based sulpho-aluminium based cementitious material is dried prior to use. Drying conditions are 55-65 ℃, and drying is carried out for 15-25 min.
The invention provides a preparation method with better effect, which comprises the following steps:
1) and (3) drying the solid waste based sulpho-aluminum gelled material in a drying oven for 20 minutes at the temperature of 60 ℃.
2) Completely dissolving phenolic resin by using absolute ethyl alcohol;
3) mixing the materials in the step 1) and the step 2), and manually stirring;
4) pouring the materials processed in the step 3) into a planetary cement mortar stirrer, and stirring for 290-310 s to obtain mixed materials;
5) shearing and stirring the mixed material in the step 4) on a laboratory open mill;
6) adding glycerol during the open milling process;
7) placing the mixed material in a mould, and performing hot press molding to obtain an initial product;
8) and curing the primary product in a drying oven at high temperature for 23.5-24.5 h to obtain the high-strength solid waste-based sulpho-aluminum series cementing material/phenolic resin composite material.
The principle is as follows: the phenolic resin is cured under heating to form a water-insoluble three-dimensional network structure, and the network structure resin has better thermal stability than many other polymers; the water released by the condensation polymerization reaction of the phenolic resin in the heating and curing process can be used for hydrating cement particles, so that extra water is not needed in the cement mixing and forming process, and the cement-based composite material with low water-cement ratio is realized. Adopts double-roller high-efficiency shearing stirring, hot-press forming and dry-heat curing. Shear agitation was performed on a two-roll mill. The two rollers of the open mill have different rotating speeds, and the rolling and shearing dual functions generated by the rollers ensure that the organic polymer and the cement are mixed uniformly in a short time, thereby increasing the contact between the components. In the hot-press forming process, the plastic material is further subjected to condensation and hydration hardening reaction under the hot-press conditionMeanwhile, the reaction products of the phenolic resin and the reactive cement begin to solidify, volatile components are separated, and finally a compact structure is formed. The hot press molding eliminates those large pores and defects often present in concrete structures, which are formed due to air introduced by stirring or insufficient stirring. Polymer components in the composite material sample after hot press molding may not be completely cured, volatile components may still exist in the sample, and further curing and volatilization are needed in a curing stage, so a heating curing process is adopted, and dry heat curing is selected; the curing aims at completing the hydration of cement, completely solidifying polymer components and completely separating volatile components. The solid waste group sulpho-aluminum series cementing material contains more Ca2+And Al3+Can be ionically combined with phenolic resin to form a more compact structure.
In another embodiment of the invention, a solid waste based sulpho-aluminum series cementing material/phenolic resin composite material is provided, which is obtained by the preparation method.
In a third embodiment of the present invention, there is provided a use of the solid waste sulfur aluminum based cementitious material/phenolic resin composite material in building construction.
In order to make the technical solutions of the present invention more clearly understood by those skilled in the art, the technical solutions of the present invention will be described in detail below with reference to specific embodiments.
The preparation process of the solid waste based sulpho-aluminum gelled material adopted in the following embodiment is as follows: and (3) grinding and uniformly mixing 5-25 mm-particle coal gangue, desulfurized gypsum, aluminum ash and carbide slag according to the mass ratio of 2.2:2.6:3.4:3.8, and calcining at 1280 ℃ for 2 hours to obtain the solid waste-based sulpho-aluminum cementing material.
Example 1
The preparation method of the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material is shown in figure 1 and comprises the following specific steps:
(1) and (3) drying the solid waste based sulpho-aluminum gelled material in a drying oven for 20 minutes at the temperature of 60 ℃.
(2) 600g of solid waste aluminum sulfide series cementing material, 66g of phenolic resin, 36g of absolute ethyl alcohol and 12g of glycerol are weighed for later use.
(3) Pouring the phenolic resin into absolute ethyl alcohol, and stirring until the phenolic resin is completely dissolved.
(4) Pouring the dissolved phenolic resin into the cementing material for manual stirring.
(5) And pouring the manually stirred materials into a planetary cement mortar stirrer, and quickly stirring for 300s to obtain a mixed material.
(6) Shearing and stirring the mixed material on an open mill for 6 minutes, and adding glycerol and uniformly mixing in the process.
(7) And putting the mixture into a mold, and putting the mold into a flat vulcanizing machine for hot pressing, wherein the hot pressing temperature is 140 ℃, the hot pressing pressure is 8MPa, and the hot pressing time is 20 min.
(8) And taking out the mold after molding, and putting the mold into a drying oven to be cured for 24 hours at the temperature of 140 ℃.
Example 2
The preparation method of the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material comprises the following specific steps:
(1) and (3) drying the solid waste based sulpho-aluminum gelled material in a drying oven for 20 minutes at the temperature of 60 ℃.
(2) 600g of solid waste aluminum sulfide series cementing material, 66g of phenolic resin, 36g of absolute ethyl alcohol and 12g of glycerol are weighed for later use.
(3) Pouring the phenolic resin into absolute ethyl alcohol, and stirring until the phenolic resin is completely dissolved.
(4) Pouring the dissolved phenolic resin into the cementing material for manual stirring.
(5) And pouring the manually stirred materials into a planetary cement mortar stirrer, and quickly stirring for 300s to obtain a mixed material.
(6) The mixture was stirred on a mill for 6 minutes, during which time glycerol was added and mixed well.
(7) And putting the mixture into a mold, and putting the mold into a flat vulcanizing machine for hot pressing, wherein the hot pressing temperature is 160 ℃, the hot pressing pressure is 8MPa, and the hot pressing time is 20 min.
(8) And taking out the mold after molding, and putting the mold into a drying oven to be cured for 24 hours at 160 ℃.
Example 3
The preparation method of the common sulphoaluminate cement/phenolic resin composite material comprises the following specific steps:
(1) ordinary sulphoaluminate cement is dried in a drying oven for 20 minutes at the temperature of 60 ℃.
(2) 600g of ordinary sulphoaluminate cement, 66g of phenolic resin, 36g of absolute ethyl alcohol and 12g of glycerol are weighed for later use.
(3) Pouring the phenolic resin into absolute ethyl alcohol, and stirring until the phenolic resin is completely dissolved.
(4) And pouring the dissolved phenolic resin into cement for manual stirring.
(5) And pouring the manually stirred materials into a planetary cement mortar stirrer, and quickly stirring for 300s to obtain a mixed material.
(6) The mixture was stirred on a mill for 6 minutes, during which time glycerol was added and mixed well.
(7) And putting the mixture into a mold, and putting the mold into a flat vulcanizing machine for hot pressing, wherein the hot pressing temperature is 160 ℃, the hot pressing pressure is 8MPa, and the hot pressing time is 20 min.
(8) And taking out the mold after molding, and putting the mold into a drying oven to be cured for 24 hours at 160 ℃.
Mechanical property tests were performed on the composite materials prepared in examples 1, 2 and 3, and the results are shown in table 1 with reference to the specification "gb.t 17671-1999 mortar strength".
Table 1 strength properties of the composites prepared in the examples
As is apparent from table 1, it is seen that the strength of the composite material prepared by using the ordinary sulphoaluminate cement is much lower than that of the composite material prepared by using the solid waste based sulphoaluminate gelled material. This is because the solid waste based sulphoaluminate gelled material adopted in the examples contains more Ca2+And Al3+The composite material can be ionically combined with phenolic resin to form a more compact structure, so that the strength of the solid waste based sulpho-aluminum gelled material/phenolic resin composite material is increased.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A preparation method of a solid waste based sulphoaluminate cementing material/phenolic resin composite material is characterized in that the solid waste based sulphoaluminate cementing material is mixed with an absolute ethyl alcohol solution of phenolic resin, a plasticizer is added in the mixing process to obtain a mixture, the mixture is subjected to hot press molding to obtain a primary material, and the primary material is subjected to high-temperature curing to obtain the solid waste based sulphoaluminate cementing material/phenolic resin composite material; the temperature of hot press molding is 140-200 ℃, the temperature of high-temperature curing is 140-200 ℃, and the solid waste group sulpho-aluminum series cementing material is prepared by calcining desulfurized gypsum, aluminum ash, carbide slag and coal gangue.
2. The method for preparing the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material of claim 1, which is characterized in that desulfurized gypsum, aluminum ash, carbide slag and coal gangue are ground, mixed and calcined to obtain the solid waste based sulpho-aluminum series cementing material;
or the calcining temperature is 1250-1300 ℃, and the time is 1.8-2 h;
or the mass ratio of the desulfurized gypsum to the aluminum ash to the carbide slag to the coal gangue is 2-3: 2-3: 3-4: 3 to 4.
3. The method for preparing the solid waste based sulphoaluminate gelled material/phenolic resin composite material as claimed in claim 1, wherein the solid waste based sulphoaluminate gelled material accounts for 100% by mass, and the solid waste based sulphoaluminate gelled material accounts for the following components by mass percent: 8-15% of phenolic resin, 4-8% of absolute ethyl alcohol and 1-3% of glycerol;
or, the solid waste based sulpho-aluminum gelled material is dried before use; preferably, the drying condition is 55-65 ℃, and the drying time is 15-25 min.
4. The method for preparing the solid waste based sulphoaluminum cement/phenolic resin composite material according to claim 1, wherein the plasticizer is glycerol.
5. The method for preparing the solid waste based sulpho-aluminum series cementing material/phenolic resin composite material of claim 1, wherein the time of hot press molding is 15-30 min;
or the pressure intensity of hot-press molding is 6-8 MPa.
6. The method for preparing the solid waste based sulpho-aluminum series binding material/phenolic resin composite material as claimed in claim 1, wherein the time of high temperature curing is 20-30 h.
7. The method for preparing the solid waste based sulpho-aluminum series cementitious material/phenolic resin composite material of claim 1, wherein the mixing mode is that firstly, the mixture is manually mixed, then the mixture is stirred by a stirrer, and finally the mixture is sheared and stirred by an open mill.
8. The method for preparing the solid waste based sulpho-aluminum series cementitious material/phenolic resin composite material of claim 7, wherein the plasticizer is added when the open mill is used for shearing and stirring;
or the stirring time of the stirrer is 200-400 s;
or the open time of the open mill is 5-6 min.
9. A solid waste based sulpho-aluminum series binding material/phenolic resin composite material, which is characterized by being obtained by the preparation method of any one of claims 1 to 7.
10. Use of the solid waste based sulphoaluminate cement/phenolic resin composite material of claim 9 in the construction of building components.
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