CN114956723A - Strain-reinforced inorganic metal abrasion-resistant material - Google Patents

Strain-reinforced inorganic metal abrasion-resistant material Download PDF

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CN114956723A
CN114956723A CN202210493863.1A CN202210493863A CN114956723A CN 114956723 A CN114956723 A CN 114956723A CN 202210493863 A CN202210493863 A CN 202210493863A CN 114956723 A CN114956723 A CN 114956723A
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CN114956723B (en
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刘国平
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Shanghai Tongyang Chemical Co ltd
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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
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/38—Fibrous materials; Whiskers
    • C04B14/48—Metal
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • 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
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/10—Acids or salts thereof containing carbon in the anion
    • 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
    • C04B2111/00008—Obtaining or using nanotechnology related materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • 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
    • 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
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C04B2111/343—Crack resistant materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
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  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a strain-reinforced inorganic metal anti-abrasion material, which consists of special coating metal fiber SF, a cement-based high-strength compact matrix USC, a fiber/matrix bonding regulator BA and water, and realizes that the cement-based material is converted into a high-strength, high-toughness and ductile metalloid material from low-strength, brittle and easy-to-crack through water-deficient reaction and a strain-reinforcing technology, so that the cement-based material is endowed with excellent mechanical strength and anti-abrasion performance, and excellent anti-cracking, anti-permeability, corrosion resistance, freeze-thaw resistance, aging resistance and other durability, and is several times to dozens of times of that of the currently commonly used C50 silicon powder concrete and the conventional epoxy mortar, and has remarkable uniqueness. And the linear expansion coefficient of the material is consistent with that of reinforced concrete, and the material can cooperatively deform with the basic concrete, so that the interface problem and the material aging problem caused by inconsistent deformation of the organic high polymer material are solved. In addition, the invention has the advantages of convenient construction and low requirement on environment, can self-level and self-compact, and can be used for construction on a wet base surface.

Description

Strain-reinforced inorganic metal abrasion-resistant material
Technical Field
The invention relates to a strain-reinforced inorganic metal anti-abrasion material, and belongs to the technical field of building materials, functional materials and structural materials.
Background
For hydraulic structures, the abrasion resistance of the water release structure is one of the important indexes related to the safety of the dam. When flowing through the flow surface, high-speed water flow carrying a large amount of suspended and moving substances and bed load can generate the effects of impact, abrasion, cavitation and the like, thereby not only greatly damaging concrete on the flow surface, but also seriously threatening the use safety of the dam. Especially high head dams, this damage is even more alarming. According to statistics, more than 70% of various large and medium hydropower stations built in China are damaged by different degrees of scouring and grinding, so that a large amount of manpower and material resources are required to be invested for maintenance every year, and the cost is staggering.
The prior art for solving the problem of abrasion resistance can be divided into two major categories, one category is a high-performance technology based on abrasion-resistant concrete, represented by C50 silica powder concrete, and aims to improve the abrasion-resistant performance by improving the strength of the concrete; the other is a surface protection technology, wherein a layer of organic/inorganic/plate protective layer is coated/paved on the surface of concrete to improve the anti-abrasion performance of the overflow surface, and the epoxy mortar is taken as a representative and comprises various organic polymer-based anti-abrasion materials such as polyurea, polyurethane, butylbenzene and the like.
The first kind of technology has the advantages of good economy, convenient construction and aging resistance of the material, but has the defects of insufficient abrasion resistance and cavitation resistance, can only be used for water flow state with medium and low flow rate and not serious cavitation, and the material is easy to crack to cause aggravation of damage and shorten the service life. The latter has the advantages that the abrasion resistance and cavitation resistance are obviously improved, but the linear expansion coefficient difference between the organic polymer material and the base concrete is larger (about 3 times), so that the defects of interface fault layer, shedding and the like are easily caused by inconsistent deformation under the action of environmental temperature load (expansion caused by heat and contraction caused by cold), and the service life is shortened. In addition, the organic polymer material has the defects of poor aging resistance, strict requirements on construction environment, high viscosity, difficult construction, high cost and the like, and the application of the material is also restricted.
In summary, although the anti-abrasion technology of the hydraulic outlet structure has advanced with the development of technology, the prior art still has its limitations.
Disclosure of Invention
The invention aims to provide a strain-strengthened inorganic metal abrasion-resistant material. The material aims at the limitations of the prior art of hydraulic water release buildings, namely C50 silicon powder concrete has the advantages of high brittleness, easy cracking, low impact toughness and insufficient abrasion resistance; the organic polymer material has the advantages of weak interfacial property, poor aging resistance, high cost, difficult construction and the like, and can better overcome the respective disadvantages.
The technical scheme of the invention is as follows: a strain strengthening type inorganic metal anti-abrasion material is prepared from the following raw materials in parts by weight: 10-30 parts of special coating metal fiber, 1-10 parts of fiber/matrix bonding control agent BA, 200-300 parts of high-strength compact matrix USC and 20-30 parts of water, and uniformly mixing.
In the strain-strengthening inorganic metal anti-impact grinding material, the special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure, the austenite grain size is ASTM 2-5 grade, the special coating is a multi-metallographic structure and comprises 50-80 wt% of brass, 20-50 wt% of zinc and 0-20 wt% of aluminum, the steel material is formed by electroplating through an acidic and alkaline electroplating bath in the wire drawing process, and the coating thickness is 1-5g/m 2 The steel fiber characteristic parameters are as follows: the length-diameter ratio is 60-100, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
In the strain-strengthened inorganic metal anti-impact material, the fiber/matrix bonding regulator BA consists of superfine metakaolin and nano CaCO 3 According to the mass ratio of 10: 0-5.
In the strain-strengthened inorganic metal anti-impact wear material, the high-strength compact matrix USC is premixed powder and is composed of the following raw materials in parts by weight: 100-150 parts of micro-nano structure composite gelling system, 100-150 parts of composite secondary high-strength aggregate and 5-8 parts of composite additive.
In the strain-strengthened inorganic metal anti-erosion and abrasion-resistant material, the micro-nano structure composite gel system is composed of the following raw materials in parts by weight: 90-120 parts of silicic acidSalt cement, 5-15 parts of superfine blast furnace slag mineral powder and 10-30 parts of submicron-nanoscale SiO 2 And 5-15 parts of nano glass beads.
In the strain-strengthened inorganic metal anti-impact and abrasion-resistant material, the composite secondary high-strength aggregate is prepared by mixing 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to a mass ratio of 5: 1-5, the microcrystalline powder is obtained by crushing, grinding and sieving a rolled microcrystalline plate and is made of 10 weight percent of Si 3 N 4 25% of SiC and 65% of quartz powder are melted and crystallized at the high temperature of more than 1500 ℃ to form the inorganic material.
In the strain-strengthened inorganic metal anti-impact material, the composite additive is prepared from the following raw materials in percentage by mass: silane defoamer: polyurethane rheology modifier: HCSA swelling agent ═ 1:0.2-0.5: 3-5.
The invention has the beneficial effects that: compared with the prior art, the strain-reinforced inorganic metal anti-impact grinding material provided by the invention has the advantages that the cement-based material is converted into a high-strength, high-toughness and ductile metalloid material from low-strength, brittle and easy-cracking through a water-deficient reaction and strain-reinforcing technical approach, so that the purposes of high strength, high toughness and high anti-impact grinding are realized. The water-deficient reaction improves the compactness and the strength of the matrix by changing the performance of the transition region, and the stress concentration of the material under tension is weakened or even eliminated by strain strengthening, so that the tensile strength and the tensile strain of the material are obviously improved, and the ductility characteristic is endowed to the material. The compression resistance, the bending resistance, the tensile strength and the tensile strain of the material respectively reach more than 180MPa, 40MPa, 15MPa and 2000 mu epsilon (mu epsilon is micro strain, 10 mu epsilon is micro strain) -6 ) 3 times, 5 times, 3 times and 13 times of the typical C50 silicon powder anti-impact concrete; the impact toughness and the abrasion resistance strength reach 20KJ/m 2 And 200 h/(kg/m) 2 ) These are 6 times and 13 times or more of the silicon powder C50. The performances are also obviously higher than that of the conventional organic polymer-based anti-abrasion material, but the problems of inconsistent deformation of the interface, easy aging, high cost, difficult construction and the like of the latter are overcome.
Definition of strain hardening: the strain strengthening index beta (ultimate tensile strength/elastic tensile strength) is more than or equal to 1.1, namely the ultimate tensile strength is more than 10 percent higher than the elastic section tensile strength (see attached figure 1).
The Cu/Zn/AL multi-element coating on the surface of the metal fiber SF with characteristic parameters in the material can effectively improve the bonding strength tau of the fiber and a matrix, and is a core index for the fiber to play a bridging role and solve the problem of microscopic inhomogeneous material stress concentration; and the combination of the fiber/matrix bonding regulator BA is the key point for realizing the strain strengthening of the macroscopic performance of the composite material.
The fiber/matrix bonding regulator BA in the material can not only strengthen the matrix, but also regulate and control the interface bonding performance between the fiber and the matrix. Firstly, a certain amount of nano CaCO 3 Can promote the hydration reaction of cement, thereby strengthening the matrix. Secondly, metakaolin is a geopolymer which can react with the cement hydration products Ca (OH) 2 Reacting and forming an aluminosilicate three-dimensional network structure under excitation thereof, thereby: 1) reduced-strength, less bulky Ca (OH) 2 Crystal content, transition region performance improvement and matrix strength improvement; 2) the formed aluminosilicate three-dimensional network fills the gaps in the system, so that the matrix is more compact and tough; 3) the combination of the matrix and the fiber is more compact, so that the bonding strength of the fiber and the matrix is improved from the physical angle; 4) al in fiber coatings 3+ The metakaolin/carbon fiber composite material can participate and promote metakaolin polycondensation reaction (three-dimensional networking), so that a covalent bond with larger bond energy is formed between the fiber and the matrix, the bonding strength between the fiber and the matrix is obviously improved, the strain strengthening of the composite material is finally realized, the tensile strain exceeds 2000 mu epsilon, the crack resistance of the material is improved, and the situation that macroscopic visible cracks cannot be generated before the HRB400 steel bar is subjected to yielding can be simply understood. The material failure mode changes from brittle fracture to ductile failure with metal-like properties.
The water used in the material of the invention is relatively less, so that the water-deficient reaction occurs in the forming process of the material, and the water-deficient reaction can improve the performance of a transition zone, thereby improving the compactness and the strength of a matrix. The formula is the main reaction equation for cement hydration, namely tricalcium silicate (C) 3 S) reaction with water to form hydrated calcium silicate gel (CSH cement) and Ca (OH) 2 Crystal:
3(CaO·SiO 2 )+6H 2 O＝3CaO·2SiO 2 ·3H 2 o (calcium silicate gel) +3Ca (OH) 2 (Crystal)
Due to the limitation of concrete construction performance, the general hydration reaction equation is water-rich reaction, and the surplus water is used for providing concrete fluidity. The disadvantages are that: 1) a thicker water film is formed around the aggregate, and a large number of gaps are formed after the cement paste is solidified by the water film, so that the strength of the material is reduced; 2) the water film will be enriched with the hydrophilic hydration product Ca (OH) 2 Crystals exist in a loose structure of hexagonal plate-like, coarse grains, and have low strength. This is the reason for the low strength of the transition zone and is also a short slab of macroscopic properties of the material. Because the transition zone (ITZ) has low strength and often has original defects, when being pulled, stress concentration is easily formed at the tips of the defects (cracks) to generate macroscopic cracks, which are expressed by low tensile strength (less than 5MPa) and poor strain capacity (less than 150 mu epsilon).
In view of the above disadvantages, the present invention specifically designs a water-deficient reaction equation, which has the following advantages by reducing the amount of water used in the material: 1) significantly Improves Transition Zone (ITZ) performance and thus increases matrix strength. Because the water quantity is insufficient, the water film layer of the aggregate interface is thinned as a result of the water deprivation reaction, and the porosity of the transition region is reduced, so that the matrix is more compact and the strength is improved; 2) low-strength, loose-structure Ca (OH) 2 The content of this reaction product in crystals is reduced and Ca (OH) 2 Can also be in the nanometer SiO 2 Under the action, the cement is more transformed into CSH set cement (calcium silicate gel), so that the matrix is more compact and the strength is further improved.
The micro-nano structure gelled material which is surplus in water-deficient reaction is filled in the system gap in a filling form, so that the compactness of the matrix is further improved, and the macroscopic performance of the material is further improved. Meanwhile, the characteristic of water-deficient reaction also endows the material with self-healing capacity: when the material is cracked under the action of external force exceeding the design load, the surplus cementing material sealed and stored as the filler can revive to generate new hydration reaction in the presence of external water (rain and the like), and a new CHS set cement is generated to close the crack, so that the self-healing function is realized.
The water-deficient reaction has the other advantage that the hardened structure has no free water inside and no penetration of external water (excellent crack resistance and permeability resistance), so that the hardened structure is endowed with extremely high freeze-thaw resistance. After 300 freeze-thaw cycles, both the dynamic elastic modulus and the mass loss were zero. The characteristic is very suitable for being used in high-altitude and high-cold regions in the western China, the temperature difference between day and night is large, and the concrete of a large number of hydropower stations in a large number of important projects such as Qinghai-Tibet railway, Tibetan region/Xinjiang and the like is seriously threatened by freeze-thaw damage.
The material has outstanding mechanical property and anti-abrasion application property by two major mechanisms of strain strengthening and water-deficient reaction. The compression resistance, the bending resistance, the ultimate tensile strength and the tensile strain respectively reach more than 180MPa, 40MPa, 15MPa and 2000 mu epsilon, and are obviously higher than organic polymer-based anti-abrasion materials such as C50 silicon powder concrete, epoxy and the like by several times or even dozens of times. Not only has high strength, but also has good toughness, and endows the steel with the characteristics of high strength and high toughness, thereby greatly improving the impact toughness and the impact abrasion resistance which respectively reach 20KJ/m 2 And 200 h/(kg/m) 2 ) Above, the material is also obviously higher than typical C50 silicon powder and organic polymer-based anti-abrasion materials, and the improvement is from several times to dozens of times.
The concrete and the reinforcing steel bars are a natural pair, and besides the advantages of mechanical properties, the concrete and the reinforcing steel bars are also important that the linear expansion coefficients are consistent, namely the linear expansion coefficients are about 10 mu epsilon/DEG C, and the deformation is consistent under the load of ambient temperature (thermal expansion and cold contraction). The material of the invention is a cement-based composite material with metal (steel) content not more than 12 percent (wt percent), so the linear expansion coefficient of the material is completely consistent with that of concrete, the diseases of interface dislocation, debonding, void removal and the like caused by large difference (2 to 3 times) of the linear expansion coefficient of the epoxy organic polymer material can be avoided, and the long-life service of the material is ensured.
The microcrystalline powder in the secondary-grade composite high-strength aggregate in the material is an artificially synthesized inorganic material, has the characteristics of high strength and high wear resistance, is 2-3 times of cast stone powder, and can be matched with quartz sand to enable the material to have better wear resistance.
The application of the composite additive in the material can better solve the problem of workability of the cement-based material with low water-cement ratio. The superplasticizer can form a charge layer with the same polarity on the surface of solid particles, and the distance between particles is separated due to the repulsion (charge resistance) of the same polarity, so that good dispersibility is provided; meanwhile, the superplasticizer is a high molecular weight polymer, has a certain volume, can play a certain space blocking (steric hindrance) role when being adsorbed to the surface of the particles, and prevents the particles from approaching, thereby further improving the dispersion efficiency and ensuring that the particles can still be efficiently dispersed under the condition of less water.
The application of the polyurethane rheological additive in the composite additive in the material provides good construction performance for the composite material, so that the composite material has the characteristics of self-leveling and self-compacting, does not need vibration and is convenient and quick. During slope construction, the purposes of no sagging and easy scraping can be realized by adjusting the thixotropy of the system, and the defects that epoxy materials are viscous due to excessive cohesion and are difficult to construct are greatly reduced.
The material of the invention adopts a large amount of micro-nano materials, has good flow property of self-leveling and self-compacting, not only endows the hardened material with high compactness and high mechanical strength due to high bulk density, but also provides good permeability on a concrete base surface, thereby providing good interface bonding capability. Under the condition of not using external force (such as interface adhesive and the like), the bonding strength of the concrete and the C50 concrete reaches more than 3.0MPa (matrix is damaged); if low-viscosity interface adhesive is used as an auxiliary material, the interface bonding strength can reach more than 4MPa (matrix failure). Therefore, the invention has good bonding performance with the interface of the foundation concrete.
The invention can be constructed on a wet base surface, avoids the harsh requirement that an organic polymer material needs a dry base surface, and provides better use convenience. And the material is an inorganic system, is nontoxic and pollution-free, and is environment-friendly.
The properties of the invention are compared with those of the prior art, which is a typical C50 silicon powder and modified epoxy mortar anti-abrasion material, shown in Table 1.
Table 1 comparison of the performance of the present invention with that of the prior art
Figure RE-GDA0003735859640000071
Figure RE-GDA0003735859640000081
Figure RE-GDA0003735859640000091
Drawings
FIG. 1 is a schematic diagram of axial tensile stress-strain.
The definition of the strain strengthening and tensile strain in the present invention is supplemented with the following figures:
(1) and (3) strain strengthening: sigma b /σ a More than or equal to 1.1 is strain strengthening, sigma b /σ a Strain softening is < 1.0.
(2) Tensile strain: epsilon b The tensile strain is the strain value of the top point of the reinforced section.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 24 parts by weight of special coating metal fiber SF, 3 parts by weight of fiber/matrix bonding regulator BA, 220 parts by weight of high-strength compact matrix USC and 21 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 60 percent of brass, 35 percent of zinc and 5 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 2g/m 2 . The fiber characteristic parameters are as follows: aspect ratio 80, tensile strength > 2500MPa, elastic modulus >200GPa。
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 1.
Wherein the USC comprises 120 parts by weight of micro-nano composite gel system, 100 parts by weight of secondary high-strength aggregate and 5.2 parts by weight of composite additive.
Wherein the micro-nano composite gel system consists of 90 weight parts of P.O 52.5.5 Portland cement, 6 weight parts of superfine blast furnace slag mineral powder and 14 weight parts of submicron-nano SiO 2 2 And 10 parts of nano-glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 2:1 by mass ratio. The microcrystal powder is obtained by crushing, grinding and sieving rolled microcrystal plate waste materials. The microcrystalline powder is made of 10 wt% Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.25:0.25: 4.
The fresh blend of this example extended slump of 680mm and after 1h slump of 630mm over time meets the requirements for self-levelling concrete (extension > 550 mm). After standard curing for 28 days, the mechanical strength, impact toughness and abrasion resistance of the test piece are shown in Table 2.
Example 2 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for new construction and repair of hydraulic water release structures is prepared by uniformly mixing 23 parts by weight of special coating metal fiber SF, 4 parts by weight of fiber/matrix bonding regulator BA, 230 parts by weight of high-strength compact matrix USC and 22 parts by weight of water by a high-power forced mixer.
Wherein the special coating metal fiber SF is formed by electroplating special coating on the surface of steel material in the process of forming metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grade (A)STM). The multi-metallic phase coating consists of 60 percent of brass, 35 percent of zinc and 5 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 2g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 80, the tensile strength is more than 2500MPa, and the elastic modulus is more than 200 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 1.
Wherein the USC comprises 125 parts of micro-nano composite gel system, 105 parts of secondary high-strength aggregate and 5.5 parts of composite additive.
The micro-nano composite gelling system consists of P.O 52.5.5 parts of Portland cement, 8 parts of superfine blast furnace slag mineral powder and 16 parts of submicron-nano SiO 2 And 11 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 2:1 by mass ratio. The microcrystal powder is obtained by crushing, grinding and sieving rolled microcrystal plate waste materials. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.25:0.25: 4.
The fresh mixture of the embodiment has an extended slump of 720mm, and a slump after 1h of 670mm, and meets the requirement that the extension of the self-leveling concrete is more than 550 mm. After standard curing for 28 days, the mechanical strength, impact toughness and abrasion resistance of the test piece are shown in Table 2.
Example 3 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for new construction and repair of hydraulic water release structures is prepared by uniformly mixing 22 parts by weight of special coating metal fiber SF, 4 parts by weight of fiber/matrix bonding strength regulator BA, 240 parts by weight of high-strength compact matrix USC and 23 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 60 percent of brass, 35 percent of zinc and 5 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 2g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 80, the tensile strength is more than 2500MPa, and the elastic modulus is more than 200 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 1.
Wherein the USC consists of 130 parts of micro-nano composite gel system, 110 parts of secondary high-strength aggregate and 5.7 parts of composite additive.
The micro-nano composite gelling system consists of 95 portions of P.O 52.5.5 Portland cement, 8 portions of superfine blast furnace slag mineral powder and 18 portions of submicron-nano SiO 2 And 9 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 2:1 by mass ratio. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.25:0.25: 4.
The fresh mixture of the embodiment has an extended slump of 690mm and a slump after 1h of 640mm, and meets the requirement that the self-leveling concrete has an extension of more than 550 mm. After standard curing for 28 days, the mechanical strength, impact toughness and abrasion resistance of the test piece are shown in the table (2).
Example 4 of the invention:
the strain-reinforced inorganic metal anti-impact grinding material for new construction and repair of hydraulic water release structures is prepared by uniformly mixing 29 parts by weight of special coating metal fiber SF, 5 parts by weight of fiber/matrix bonding strength regulator BA, 250 parts by weight of high-strength compact matrix USC and 23 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 60 percent of brass, 35 percent of zinc and 5 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 2g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 80, the tensile strength is more than 2500MPa, and the elastic modulus is more than 200 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 1.
Wherein the high-strength compact matrix USC consists of 135 parts of a micro-nano composite gelling system, 115 parts of secondary high-strength aggregate and 5.9 parts of a composite additive.
The micro-nano composite gelling system consists of 100 portions of P.O 52.5.5 Portland cement, 10 portions of superfine blast furnace slag mineral powder and 20 portions of submicron-nano SiO 2 And 5 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 2:1 by mass ratio. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.25:0.25: 4.
The fresh mixture of the embodiment has an expansion slump of 660mm, and a slump of 615 mm after 1h, and meets the requirement that the expansion degree of self-leveling concrete is more than 550 mm. After standard curing for 28 days, the mechanical strength, impact toughness and abrasion resistance of the test piece are shown in the table (2).
Example 5 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 25 parts by weight of special coating metal fiber SF, 5 parts by weight of fiber/matrix bonding strength regulator BA, 260 parts by weight of high-strength compact matrix USC and 24 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 60 percent of brass, 35 percent of zinc and 5 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 2g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 80, the tensile strength is more than 2500MPa, and the elastic modulus is more than 200 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 1.
Wherein the USC consists of 140 parts of micro-nano composite gelled system, 120 parts of secondary high-strength aggregate and 6.1 parts of composite additive.
The micro-nano composite gelling system consists of 100 portions of P.O 52.5.5 Portland cement, 10 portions of superfine blast furnace slag mineral powder and 20 portions of submicron-nano SiO 2 And 10 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 2:1 by mass ratio. The microcrystal powder is obtained by crushing, grinding and sieving rolled microcrystal plate waste materials. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.25:0.25: 4.
The fresh mixture of the embodiment has an expansion slump of 705mm, and a slump after 1 hour of 645mm, and meets the requirement that the expansion degree of the self-leveling concrete is more than 550 mm. After standard curing for 28 days, the mechanical strength, impact toughness and abrasion resistance of the test piece are shown in Table 2.
The data for the performance tests after 28 days of standard curing for examples 1-5 are listed below:
table 2 examples 1-5 performance test data
Figure RE-GDA0003735859640000151
Example 6 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 10 parts of special coating metal fiber SF, 10 parts of fiber/matrix bonding strength regulator BA, 260 parts of high-strength compact matrix USC and 20 parts of water in proportion (wt%) by a high-power forced stirrer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 50 percent of brass, 40 percent of zinc and 10 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 3g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 60, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 5: 1.
Wherein the high-strength compact matrix USC consists of 100 parts of a micro-nano composite gelling system, 150 parts of secondary high-strength aggregate and 5 parts of a composite additive.
The micro-nano composite gel system consists of P.O 52.5.5 portions of portland cement, 15 portions of superfine blast furnace slag mineral powder, 30 portions of submicron-nano SiO 2 And 15 parts of nano glass beads。
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 5:1 by mass ratio. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.5:0.5: 3.
Example 7 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 30 parts by weight of special coating metal fiber SF, 1 part by weight of fiber/matrix bonding strength regulator BA, 300 parts by weight of high-strength compact matrix USC and 30 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 80 percent of brass and 20 percent of zinc by weight percentage, the steel fiber is formed by electroplating in an acid and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 5g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 100, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 2: 1.
Wherein the USC comprises 150 parts of micro-nano composite gel system, 100 parts of secondary high-strength aggregate and 8 parts of composite additive.
The micro-nano composite gelling system consists of P.O 52.5.5 parts of Portland cement 120 parts, 5 parts of superfine blast furnace slag mineral powder and 10 parts of submicron-nano SiO 2 And 5 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 1: 1 by mass ratio. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.2:0.2: 5.
Example 8 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 20 parts by weight of special coating metal fiber SF, 5 parts by weight of fiber/matrix bonding strength regulator BA, 250 parts by weight of high-strength compact matrix USC and 25 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 65 percent of brass, 25 percent of zinc and 10 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 4g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 70, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
The fiber/matrix bonding regulator BA is metakaolin of 4000 meshes.
Wherein the USC comprises 125 parts of micro-nano composite gel system, 125 parts of secondary high-strength aggregate and 6.5 parts of composite additive.
The micro-nano composite gelling system consists of 110 parts of P.O 52.5.5 Portland cement, 10 parts of superfine blast furnace slag mineral powder and 20 parts of submicron-nano SiO 2 And 10 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is composed of 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalThe powder is prepared from the following components in percentage by weight: 3 in a mass ratio. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.3:0.3: 4.
Example 9 of the invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic release structures is prepared by uniformly mixing 20 parts by weight of special coating metal fiber SF, 4 parts by weight of fiber/matrix bonding strength regulator BA, 280 parts by weight of high-strength compact matrix USC and 25 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, and is a sorbite metallographic structure with austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 55 wt% of brass, 30 wt% of zinc and 15 wt% of aluminum, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 1g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 90, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 3.
Wherein the USC consists of 140 parts of micro-nano composite gelled system, 110 parts of secondary high-strength aggregate and 6 parts of composite additive.
The micro-nano composite gelling system consists of 115 parts of P.O 52.5.5 Portland cement, 8 parts of superfine blast furnace slag mineral powder and 25 parts of submicron-nano SiO 2 And 8 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 5: 2 in a mass ratio ofAnd (4) obtaining. The microcrystalline powder is obtained by crushing, grinding and sieving rolled microcrystalline plate waste. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid type superplasticizer: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.3:0.3: 4.
Example 10 of the present invention:
the strain-reinforced inorganic metal anti-impact and wear-resistant material for the new construction and repair of hydraulic water release buildings is prepared by uniformly mixing 25 parts by weight of special coating metal fiber SF, 7 parts by weight of fiber/matrix bonding strength regulator BA, 210 parts by weight of high-strength compact matrix USC and 22 parts by weight of water by a high-power forced mixer.
The special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, is a sorbite metallographic structure, and has austenite grain size of 2-5 grades (ASTM). The multi-metallic phase coating consists of 70 percent of brass, 20 percent of zinc and 10 percent of aluminum in percentage by weight, the steel fiber is formed by electroplating in an acidic and alkaline electroplating bath in the wire drawing process, and the thickness of the coating is 4g/m 2 . The fiber characteristic parameters are as follows: the length-diameter ratio is 85, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
The fiber/matrix bonding regulator BA consists of 4000-mesh metakaolin and nano CaCO 3 Mixing at a ratio of 10: 4.
Wherein the high-strength compact matrix USC consists of 115 parts of a micro-nano composite gelling system, 135 parts of secondary high-strength aggregate and 7 parts of a composite additive.
The micro-nano composite gelling system consists of 115 parts of P.O 52.5.5 Portland cement, 8 parts of superfine blast furnace slag mineral powder and 25 parts of submicron-nano SiO 2 And 8 parts of nano glass beads.
Wherein the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to the weight ratio of 5: 2 in a mass ratio. Microcrystal powder is by calendering micrite boardThe waste material is obtained by crushing, grinding and sieving. The microcrystalline powder is made of 10 wt% of Si 3 N 4 25 percent of SiC and 65 percent of quartz powder are melted and crystallized at a high temperature of more than 1500 ℃ to form the high-strength and high-wear-resistance inorganic material.
Wherein the composite additive comprises the following components in percentage by weight: polycarboxylic acid-based superplasticizers: silane defoamer: polyurethane rheology modifier: HCSA swelling agent 1:0.3:0.3: 4.

Claims (7)

1. The strain strengthening type inorganic metal anti-abrasion material is characterized in that: the composition is prepared from the following raw materials in parts by weight: 10-30 parts of special coating metal fiber, 1-10 parts of fiber/matrix bonding control agent BA, 200-300 parts of high-strength compact matrix USC and 20-30 parts of water, and uniformly mixing.
2. The strain-strengthened inorganic metal abrasion-resistant material according to claim 1, wherein: the special coating metal fiber SF is formed by electroplating a special coating on the surface of a steel material in the process of forming the metal fiber through wire drawing treatment, is a sorbite metallographic structure, has austenite grain size of ASTM 2-5 grade, is a multi-metallographic structure and consists of 50-80 wt% of brass, 20-50 wt% of zinc and 0-20 wt% of aluminum, is formed by electroplating the steel material through an acidic and alkaline electroplating bath in the wire drawing process, and has the coating thickness of 1-5g/m 2 The steel fiber characteristic parameters are as follows: the length-diameter ratio is 60-100, the tensile strength is more than 1000MPa, and the elastic modulus is more than 100 GPa.
3. The strain-strengthened inorganic metal abrasion-resistant material according to claim 1, wherein: the fiber/matrix bonding regulator BA consists of superfine metakaolin and nano CaCO 3 According to the mass ratio of 10: 0-5.
4. The strain-strengthened inorganic metal abrasion-resistant material as claimed in claim 1, wherein: the high-strength compact substrate USC is premixed powder and is prepared from the following raw materials in parts by weight: 100-150 parts of micro-nano structure composite gelling system, 100-150 parts of composite secondary high-strength aggregate and 5-8 parts of composite additive.
5. The strain-strengthened inorganic metal abrasion-resistant material of claim 4, wherein: the micro-nano structure composite gelling system is composed of the following raw materials in parts by weight: 90-120 parts of Portland cement, 5-15 parts of superfine blast furnace slag mineral powder and 10-30 parts of submicron-nanoscale SiO 2 And 5-15 parts of nano glass beads.
6. The strain-strengthened inorganic metal abrasion-resistant material of claim 4, wherein: the composite secondary high-strength aggregate is prepared from 0.1-0.7mm quartz sand and 0.5-1.5mm microcrystalline powder according to a mass ratio of 5: 1-5, the microcrystalline powder is obtained by crushing, grinding and sieving a rolled microcrystalline plate and is made of 10 weight percent of Si 3 N 4 25% of SiC and 65% of quartz powder are melted and crystallized at the high temperature of more than 1500 ℃ to form the inorganic material.
7. The strain-strengthened inorganic metal abrasion-resistant material of claim 4, wherein: the composite additive is prepared from the following raw materials in percentage by mass: silane defoamer: polyurethane rheology modifier: HCSA swelling agent ═ 1:0.2-0.5: 3-5.
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JP2001213661A (en) * 2000-01-31 2001-08-07 Taiheiyo Cement Corp Composite material
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CN103896532A (en) * 2014-03-04 2014-07-02 南京林业大学 Cement-based composite material with high strength, toughness, impact resistance and abrasion resistance and casting method thereof
CN105060784A (en) * 2015-08-03 2015-11-18 东南大学 High-ductility cement-based material for repairing hydraulic outlet works, and preparation method thereof
CN105801039A (en) * 2014-12-29 2016-07-27 中国建筑材料科学研究总院 Wear-resistant and antiknock concrete and preparation method thereof
CN109265096A (en) * 2018-08-22 2019-01-25 武大巨成结构股份有限公司 A kind of ultrahigh-performance cement-based resistant abrasion material

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001213661A (en) * 2000-01-31 2001-08-07 Taiheiyo Cement Corp Composite material
US20130012625A1 (en) * 2011-07-05 2013-01-10 Li Victor C Strain hardening brittle matrix composites with high strength and high tensile ductility
CN103896532A (en) * 2014-03-04 2014-07-02 南京林业大学 Cement-based composite material with high strength, toughness, impact resistance and abrasion resistance and casting method thereof
CN105801039A (en) * 2014-12-29 2016-07-27 中国建筑材料科学研究总院 Wear-resistant and antiknock concrete and preparation method thereof
CN105060784A (en) * 2015-08-03 2015-11-18 东南大学 High-ductility cement-based material for repairing hydraulic outlet works, and preparation method thereof
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