CN111018435A - High-strength high-toughness polymer material and preparation method thereof - Google Patents
High-strength high-toughness polymer material and preparation method thereof Download PDFInfo
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- CN111018435A CN111018435A CN201911190345.7A CN201911190345A CN111018435A CN 111018435 A CN111018435 A CN 111018435A CN 201911190345 A CN201911190345 A CN 201911190345A CN 111018435 A CN111018435 A CN 111018435A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- 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 high-strength high-toughness polymer material which comprises the following components in parts by weight: 700 parts of silica-alumina mineral raw material, 800 parts of alkali activator, 70-150 parts of nano-scale efficient modifier, 2-5 parts of super absorbent resin, 2-6 parts of hybrid fiber, 4-10 parts of surfactant, 1000 parts of fine aggregate, 100 parts of deionized water, 300 parts of metakaolin 200-containing material, 200 parts of fly ash 150-containing material, 50-100 parts of red mud, 40-60 parts of slag, 40-60 parts of silica fume and 20-40 parts of silicate cement, wherein the nano-scale efficient modifier comprises 20-50 parts of condensed phosphate, 20-40 parts of nano-silica, 20-40 parts of nano-alumina and 10-20 parts of zeolite. The invention also discloses a preparation method of the high-strength high-toughness polymer material. The invention solves the problems of large early self-shrinkage and easy cracking of the geopolymer, and the obtained geopolymer has stronger toughness and higher strength.
Description
Technical Field
The invention belongs to the field of building materials, and particularly relates to a high-strength high-toughness polymer material and a preparation method thereof.
Background
The geopolymer material is a novel material with a special inorganic polycondensation three-dimensional oxide network structure, the material is generated by taking minerals rich in silicon and aluminum as raw materials and carrying out alkali-activated reaction with liquid sodium silicate, sodium hydroxide and other solutions, and the geopolymer material has more excellent performance than the traditional silicate material, and comprises the following steps: fast hardening, early strength, good acid and alkali resistance, good fire resistance and high temperature resistance, high efficiency of fixing heavy metal ions and the like. In addition, the geopolymer raw material is mainly derived from industrial wastes such as fly ash, blast furnace slag, mine waste residue and the like, the carbon emission and the energy consumption in the production process are lower than those of common portland cement, and the geopolymer is a low-carbon, green, energy-saving and environment-friendly building material. The application and development of the geopolymer material are limited due to the problems of large early shrinkage, easy cracking, strong brittleness and the like, and the development of a novel geopolymer material with small early shrinkage and capable of combining the performances of toughness, strength and the like becomes a key problem to be solved urgently.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high-strength high-toughness polymer material with small early shrinkage and a corresponding preparation method thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: a high strength and high toughness polymeric material comprising the following components by weight: 700 portions of silica-alumina mineral raw material, 800 portions of alkali excitant 600, 70 to 150 portions of nano-scale efficient modifier, 2 to 5 portions of pre-absorbent super absorbent resin, 2 to 6 portions of hybrid fiber, 4 to 10 portions of surfactant, 1000 portions of fine aggregate 700 and 150 portions of deionized water; the silicon-aluminum mineral raw materials are complex materials and comprise 300 parts of metakaolin 200-charge, 200 parts of fly ash 150-charge, 50-100 parts of red mud, 40-60 parts of slag, 40-60 parts of silica fume and 20-40 parts of portland cement; the nano-scale efficient modifier is a compound material and comprises 20-50 parts of condensed phosphate, 20-40 parts of nano-silica, 20-40 parts of nano-alumina and 10-20 parts of zeolite.
Further, the alkali activator is a compound material, and comprises 750 parts of liquid sodium silicate 550-750 parts and 50-150 parts of solid sodium hydroxide.
Further, the pre-absorbed super absorbent resin is obtained by placing the super absorbent resin in deionized water and standing for 10-20 minutes.
Furthermore, the super absorbent resin is a high molecular material, the content of the main chemical component, namely the low-crosslinking sodium polyacrylate, is more than 80%, and the particle size distribution is 120-180 meshes.
Further, the hybrid fiber comprises 1-3 parts of chopped carbon fiber, 0.5-3 parts of polypropylene fiber and 0.5-2 parts of chopped basalt fiber, and the fiber length is 5-15 mm.
Further, the surfactant is a compound material and comprises 3-7 parts of calcium lignosulphonate and 1-5 parts of sodium dodecyl sulfate, and the content of active ingredients is more than 95%.
Further, the fine aggregate is waste glass powder or quartz sand, and the particle size distribution is 100-1000 microns.
The invention also discloses a preparation method of the high-strength high-toughness polymer material, which is characterized by comprising the following steps of:
1) preparing a silicon-aluminum mineral raw material: mixing, stirring and grinding 300 parts of 200-charge metakaolin, 200 parts of 150-charge fly ash, 50-100 parts of red mud, 40-60 parts of slag, 40-60 parts of silica fume and 20-40 parts of portland cement according to a proportion to obtain the cement;
2) preparing a nano-scale efficient modifier: mixing, stirring and grinding 20-50 parts of condensed phosphate, 20-40 parts of nano silicon dioxide, 20-40 parts of nano aluminum oxide and 10-20 parts of zeolite according to a proportion to obtain the product;
3) treating the super absorbent resin: 2-5 parts of super absorbent resin is put into 100-150 parts of deionized water and kept stand for 10-20 minutes;
4) preparing an alkali activator: pouring 50-150 parts of sodium hydroxide into 550-750 parts of liquid sodium silicate in proportion, uniformly stirring, and cooling and standing at room temperature for 12-24 hours to obtain the sodium silicate solution;
5) preparation of hybrid fiber dispersed alkali-activated solution: mixing 2-6 parts of hybrid fiber, 4-10 parts of surfactant and the alkali activator obtained in the step 4), and performing ultrasonic dispersion at 40-50Hz for 30-60 minutes to form a uniform hybrid fiber dispersed alkali-activated solution;
6) preparing a high-strength high-toughness polymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-water-absorption super absorbent resin obtained in the step 3) and 1000 parts of fine aggregate, and uniformly mixing to obtain the high-strength high-toughness polymer material.
The invention has the beneficial effects that: (1) the early shrinkage is small: the pre-water-absorption super absorbent resin generates self-expansion deformation in the geopolymer, and can offset most of early shrinkage of the geopolymer to form a more compact microstructure. The surfactant also has a certain steric hindrance effect, which is beneficial to the dispersion of powder particles and improves the fluidity of the material. In addition, a large amount of divalent or higher metal ions (such as aluminum, calcium, etc.) in the polymer encountered by the super absorbent resin generate molecular crosslinking to form a gelled substance, and the gelled substance plays a role in seed nucleation. PO produced by hydrolysis of condensed phosphate3 2-And HPO4 2-The metal ions wrapping the super absorbent resin form a phosphate double-salt phase, so that the bonding strength of the super absorbent resin and the geopolymer is increased, and the mechanical property of the geopolymer is enhanced; (2) excellent mechanical strength: the invention is mainly based on the closest packing theory of the aggregate, and calculates the mass proportion and distribution modulus of the silicon-aluminum mineral raw material and the fine aggregate according to the particle composition of each powder, so as to obtain the optimal proportioning range of the active powder geopolymer design and greatly improve the toughness and strength of the geopolymer. On the basis, by utilizing the high activity effect and the micro-aggregate filling effect of the nano-scale efficient modifier, the particle size range and the mixing amount of the quartz sand or the waste glass powder can effectively improve the compactness of the geopolymer and reduce the internal porosity, and the better hydrophilicity of the nano-scale efficient modifier can be attached to the super absorbent resin base material, so that the generation and the development of gel near the super absorbent resin are promoted, and the defect formed by absorbing the water nearby by the super absorbent resin is filled. In addition, the nano zeolite, the silicon oxide and the aluminum oxide have compositions similar to the silicon-aluminum raw material and the crystallization product thereof, can promote the dissolution of more silicon and aluminum raw materials in the early stage, have larger specific surface area, can attract nearby dissolved substances and enrich the substances on the surface of the silicon and aluminum raw materials to play a role in inducing nucleation, form more calcium silicate hydrate, calcium aluminate hydrate and sodium aluminosilicate hydrate, reduce the setting time, optimize a cementing material system and improve the early strength effect of the geopolymer; (3) good crack resistance and high toughness: high tensile strength carbon fiber, polypropylene fiber inhibiting crack formation and development, and gel development promoting agentThe Wuyan fiber and the three fibers are mixed and matched with each other according to a certain proportion and are filled automatically, and the proper chopped length of the fibers has an excellent repairing effect on the defects formed by the super absorbent resin absorbing nearby water, so that the formation of polymer material microcracks is effectively controlled. In addition, due to the addition of the nano high-efficiency modifier, the density of the matrix is increased, gel substances generated by the induction of the nano high-efficiency modifier can be attached to the surface of the fiber, and the polymer material and the fiber are bridged, so that the geopolymer and the fiber are better chemically bonded, the bonding strength of the geopolymer material and the fiber is increased, the fiber damage mechanism is converted from pull-out damage to fiber pull-off mode, and the strength and the toughness of the material are obviously improved.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description clearly and completely describes the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
1) 200g of metakaolin, 150g of fly ash, 50g of red mud, 40g of slag, 40g of silica fume and 20g of portland cement are mixed, stirred and ground according to a proportion to obtain a silica-alumina mineral raw material;
2) 20g of condensed phosphate, 20g of nano-silica, 20g of nano-alumina and 10g of zeolite are mixed, stirred and ground according to a proportion to obtain a nano-scale efficient modifier;
3) placing 2g of super absorbent resin into 100g of deionized water, and standing for 10 minutes to obtain the pre-absorbed super absorbent resin:
4) 50g of sodium hydroxide is poured into 600g of liquid sodium silicate according to a proportion, stirred uniformly, cooled and kept stand for 24 hours at room temperature to obtain an alkali activator;
5) mixing 1g of 5 mm long and short cut carbon fibers, 1g of 5 mm long polypropylene fibers, 1g of 5 mm long and short cut basalt fibers, 3g of calcium lignosulfonate, 1g of sodium dodecyl sulfate and the alkali activator obtained in the step 4), and ultrasonically dispersing for 60 minutes at 50Hz to form a uniform mixed fiber dispersed alkali activation solution;
6) preparing a high-strength high-toughness polymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-water-absorption super absorbent resin obtained in the step 3) and 700g of fine aggregate, and uniformly mixing to obtain the high-strength high-toughness polymer material.
Example 2
1) Mixing 300g of metakaolin, 200g of fly ash, 50g of red mud, 50g of slag, 60g of silica fume and 40g of portland cement according to a proportion, stirring and grinding to obtain a silica-alumina mineral raw material;
2) mixing, stirring and grinding 50g of condensed phosphate, 40g of nano-silica, 40g of nano-alumina and 20g of zeolite according to a proportion to obtain a nano-scale efficient modifier;
3) placing 3g of super absorbent resin into 150g of deionized water, and standing for 15 minutes to obtain the pre-absorbed super absorbent resin:
4) pouring 130g of sodium hydroxide into 650g of liquid sodium silicate according to a proportion, uniformly stirring, and cooling and standing at room temperature for 24 hours to obtain an alkali activator;
5) mixing 3g of 5 mm long and short cut carbon fibers, 2g of 5 mm long polypropylene fibers, 1g of 5 mm long and short cut basalt fibers, 5g of calcium lignosulfonate, 5g of sodium dodecyl sulfate and the alkali activator obtained in the step 4), and ultrasonically dispersing for 60 minutes at 50Hz to form a uniform mixed fiber dispersed alkali activation solution;
6) preparing a high-strength high-toughness polymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-water-absorbing super absorbent resin obtained in the step 3) and 900g of fine aggregate, and uniformly mixing to obtain the high-strength high-toughness polymer material.
Example 3
1) Mixing 250g of metakaolin, 180g of fly ash, 70g of red mud, 50g of slag, 50g of silica fume and 30g of portland cement according to a proportion, stirring and grinding to obtain a silica-alumina mineral raw material;
2) mixing 35g of condensed phosphate, 30g of nano-silica, 30g of nano-alumina and 15g of zeolite in proportion, stirring and grinding to obtain a nano-scale efficient modifier;
3) putting 4g of super absorbent resin into 150g of deionized water, and standing for 20 minutes to obtain the pre-absorbed super absorbent resin:
4) pouring 100g of sodium hydroxide into 650g of liquid sodium silicate according to a proportion, uniformly stirring, and cooling and standing at room temperature for 24 hours to obtain an alkali activator;
5) mixing 2g of 5 mm long and short cut carbon fibers, 1.5g of 5 mm long polypropylene fibers, 1g of 5 mm long and short cut basalt fibers, 3g of calcium lignosulfonate and 3g of sodium dodecyl sulfate with the alkali activator obtained in the step 4), and ultrasonically dispersing for 60 minutes at 50Hz to form a uniform mixed fiber dispersed alkali excitation solution;
6) preparing a high-strength high-toughness polymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-water-absorption super absorbent resin obtained in the step 3) and 850g of fine aggregate, and uniformly mixing to obtain the high-strength high-toughness polymer material.
Comparative example 4
1) Mixing 250g of metakaolin, 180g of fly ash, 70g of red mud, 50g of slag, 50g of silica fume and 30g of portland cement according to a proportion, stirring and grinding to obtain a silica-alumina mineral raw material;
2) mixing 35g of condensed phosphate, 30g of nano-silica, 30g of nano-alumina and 15g of zeolite in proportion, stirring and grinding to obtain a nano-scale efficient modifier;
3) pouring 100g of sodium hydroxide into 650g of liquid sodium silicate according to a proportion, uniformly stirring, and cooling and standing at room temperature for 24 hours to obtain an alkali activator;
4) mixing 2g of 5 mm long and short cut carbon fibers, 1.5g of 5 mm long polypropylene fibers, 1g of 5 mm long and short cut basalt fibers, 3g of calcium lignosulfonate and 3g of sodium dodecyl sulfate with the alkali activator obtained in the step 3), and ultrasonically dispersing for 60 minutes at 50Hz to form a uniform mixed fiber dispersed alkali excitation solution;
5) preparation of the geopolymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2) and 850g of fine aggregate, and uniformly mixing to obtain the geopolymer material.
Comparative example 5
1) Mixing 250g of metakaolin, 180g of fly ash, 70g of red mud, 50g of slag, 50g of silica fume and 30g of portland cement according to a proportion, stirring and grinding to obtain a silica-alumina mineral raw material;
2) mixing 35g of condensed phosphate, 30g of nano-silica, 30g of nano-alumina and 15g of zeolite in proportion, stirring and grinding to obtain a nano-scale efficient modifier;
3) putting 4g of super absorbent resin into 150g of deionized water, and standing for 10 minutes to obtain the super absorbent resin with pre-water absorption:
4) pouring 100g of sodium hydroxide into 650g of liquid sodium silicate according to a proportion, uniformly stirring, and cooling and standing at room temperature for 24 hours to obtain an alkali activator;
5) preparation of the geopolymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-absorbent super absorbent resin obtained in the step 3) and 850g of fine aggregate, and uniformly mixing to obtain the geopolymer material.
Comparative example 6
1) Mixing 250g of metakaolin, 180g of fly ash, 70g of red mud, 50g of slag, 50g of silica fume and 30g of portland cement according to a proportion, stirring and grinding to obtain a silica-alumina mineral raw material;
2) putting 4g of super absorbent resin into 150g of deionized water, and standing for 10 minutes to obtain the super absorbent resin with pre-water absorption;
3) pouring 100g of sodium hydroxide into 650g of liquid sodium silicate according to a proportion, uniformly stirring, and cooling and standing at room temperature for 24 hours to obtain an alkali activator;
4) mixing 2g of 5 mm long and short cut carbon fibers, 1.5g of 5 mm long polypropylene fibers, 1g of 5 mm long and short cut basalt fibers, 3g of calcium lignosulfonate and 3g of sodium dodecyl sulfate with the alkali activator obtained in the step 4), and ultrasonically dispersing for 60 minutes at 50Hz to form a uniform mixed fiber dispersed alkali excitation solution;
5) preparation of the geopolymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the pre-absorbent super absorbent resin obtained in the step 2) and 850g of fine aggregate, and uniformly mixing to obtain the geopolymer material.
The results of the performance test of the obtained geopolymer material are shown in Table 1
Table 1: geopolymer material performance test results
As can be seen from Table 1, the early shrinkage of the super absorbent resin without adding pre-absorbed water in comparative example 4 is increased by 47%, the breaking strength of the super absorbent resin without adding fiber in comparative example 5 is reduced by 36%, the compressive strength and the breaking strength of the super absorbent resin without adding nano modifier in comparative example 6 are both reduced, and the early shrinkage is increased, which indicates that the nano modifier has good synergistic effect on the system.
The geopolymer prepared by the invention effectively controls the early shrinkage of the geopolymer material by adding the synergistic effect of the nano-scale efficient modifier, the hybrid fiber and the pre-absorbent super absorbent resin, and obviously improves the strength and toughness of the material.
The foregoing detailed description is intended to illustrate and not limit the invention, which is intended to be within the spirit and scope of the appended claims, and any changes and modifications that fall within the true spirit and scope of the invention are intended to be covered by the following claims.
Claims (8)
1. A high-strength high-toughness polymer material, characterized by comprising the following components by weight: 700 portions of silica-alumina mineral raw material, 800 portions of alkali excitant 600, 70 to 150 portions of nano-scale efficient modifier, 2 to 5 portions of pre-absorbent super absorbent resin, 2 to 6 portions of hybrid fiber, 4 to 10 portions of surfactant, 1000 portions of fine aggregate 700 and 150 portions of deionized water; the silicon-aluminum mineral raw materials are complex materials and comprise 300 parts of metakaolin 200-charge, 200 parts of fly ash 150-charge, 50-100 parts of red mud, 40-60 parts of slag, 40-60 parts of silica fume and 20-40 parts of portland cement; the nano-scale efficient modifier is a compound material and comprises 20-50 parts of condensed phosphate, 20-40 parts of nano-silica, 20-40 parts of nano-alumina and 10-20 parts of zeolite.
2. A high strength high toughness polymeric material according to claim 1, wherein: the alkali activator is a compound material and comprises 750 parts of liquid sodium silicate 550-150 parts of solid sodium hydroxide.
3. A high strength high toughness polymeric material according to claim 1, wherein: the pre-water-absorption super absorbent resin is obtained by placing the super absorbent resin in deionized water and standing for 10-20 minutes.
4. A high strength high toughness polymeric material according to claim 1 or 3, wherein: the super absorbent resin is a high polymer material, the content of the main chemical component, namely the low-crosslinking sodium polyacrylate, is more than 80 percent, and the particle size distribution is 120-180 meshes.
5. A high strength high toughness polymeric material according to claim 1, wherein: the hybrid fiber comprises 1-3 parts of chopped carbon fiber, 0.5-3 parts of polypropylene fiber and 0.5-2 parts of chopped basalt fiber, and the fiber length is 5-15 mm.
6. A high strength high toughness polymeric material according to claim 1, wherein: the surfactant is a compound material and comprises 3-7 parts of calcium lignosulphonate and 1-5 parts of sodium dodecyl sulfate, and the content of active ingredients is more than 95%.
7. A high strength high toughness polymeric material according to claim 1, wherein: the fine aggregate is waste glass powder or quartz sand, and the particle size distribution is 100-1000 microns.
8. A preparation method of a high-strength high-toughness polymer material is characterized by comprising the following steps:
1) preparing a silicon-aluminum mineral raw material: mixing, stirring and grinding 300 parts of 200-charge metakaolin, 200 parts of 150-charge fly ash, 50-100 parts of red mud, 40-60 parts of slag, 40-60 parts of silica fume and 20-40 parts of portland cement according to a proportion to obtain the cement;
2) preparing a nano-scale efficient modifier: mixing, stirring and grinding 20-50 parts of condensed phosphate, 20-40 parts of nano silicon dioxide, 20-40 parts of nano aluminum oxide and 10-20 parts of zeolite according to a proportion to obtain the product;
3) treating the super absorbent resin: 2-5 parts of super absorbent resin is put into 100-150 parts of deionized water and kept stand for 10-20 minutes;
4) preparing an alkali activator: pouring 50-150 parts of sodium hydroxide into 550-750 parts of liquid sodium silicate in proportion, uniformly stirring, and cooling and standing at room temperature for 12-24 hours to obtain the sodium silicate solution;
5) preparation of hybrid fiber dispersed alkali-activated solution: mixing 2-6 parts of hybrid fiber, 4-10 parts of surfactant and the alkali activator obtained in the step 4), and performing ultrasonic dispersion at 40-50Hz for 30-60 minutes to form a uniform hybrid fiber dispersed alkali-activated solution;
6) preparing a high-strength high-toughness polymer material: continuously stirring the alkali activator obtained in the step 4), sequentially adding the silicon-aluminum raw material obtained in the step 1), the nano-scale efficient modifier obtained in the step 2), the pre-water-absorption super absorbent resin obtained in the step 3) and 1000 parts of fine aggregate, and uniformly mixing to obtain the high-strength high-toughness polymer material.
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