CN110642554A - Modified glass reinforced bar applied to reinforced concrete, preparation method and application thereof - Google Patents
Modified glass reinforced bar applied to reinforced concrete, preparation method and application thereof Download PDFInfo
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- CN110642554A CN110642554A CN201911121073.5A CN201911121073A CN110642554A CN 110642554 A CN110642554 A CN 110642554A CN 201911121073 A CN201911121073 A CN 201911121073A CN 110642554 A CN110642554 A CN 110642554A
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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
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/18—Polyesters; Polycarbonates
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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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00293—Materials impermeable to liquids
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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
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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
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Reinforcement Elements For Buildings (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention discloses a modified glass reinforced bar applied to reinforced concrete, a preparation method and application thereof. The modified glass reinforcing steel bar is obtained by impregnating continuous glass fibers in an unsaturated polyester resin solution, continuously extruding and drawing the impregnated continuous glass fibers, and cutting, wherein the unsaturated polyester resin solution comprises: unsaturated polyester resin, aramid fibril fiber and inorganic fiber. The improved glass reinforced bar provided by the invention has the advantages that the strength is greatly improved, the compatibility between the glass reinforced bar and the concrete is good, and the problem of larger performance difference between a polymer material and the concrete is solved, so that the strength of the concrete is enhanced, and the corrosion resistance and the water seepage resistance of the concrete material are improved. The preparation method is energy-saving and environment-friendly, can prepare the concrete material with high strength standard, and is particularly suitable for building materials such as bearing walls and the like with high requirements on the strength of the concrete.
Description
Technical Field
The invention relates to a building material, relates to a modified glass steel bar applied to reinforced concrete, a preparation method and application thereof, and particularly relates to a modified glass steel bar playing a reinforcing role in a glass steel bar-steel bar mixed reinforced concrete material.
Background
The bearing wall is a wall body for supporting the weight of an upper floor, is a ridge beam for supporting a building, and is an important part for determining indoor safety. With the current demand for floor height, the strength requirements of the concrete constituting the load-bearing wall are becoming higher and higher.
The basic strength indexes of concrete are three: cubic concrete compressive strength, axial concrete compressive strength (or prismatic strength), and tensile strength of concrete.
Concrete cube compressive strength: the strength of the concrete cubic test piece is relatively stable, and the value is taken as a basic index of the concrete strength in China. According to the numerical value of the concrete cube standard value of strength, the concrete structure design specification GB50010-2001 (hereinafter referred to as the specification) stipulates that the concrete strength grade is 14: c15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75, C80. Wherein the symbol C represents Concrete (Concrete), the following numbers represent standard values of cubic compression resistance in N/mm2。
Axial compressive strength (or prismatic strength) of concrete: the prism (the height is larger than the side length) test piece can better reflect the actual pressure resistance of the concrete member than the cube test piece. In engineering, the length of a reinforced concrete axial compression member, such as a column, a roof truss compression chord member and the like, is much larger than the size of a cross section, and the concrete strength of the member is close to the axial compression strength of a concrete prism. When the member is designed, the axial compressive strength is mostly adopted as the concrete strength.
Tensile strength of concrete: the tensile strength of concrete is generally low, only 1/181/8 times the compressive strength, and does not increase in proportion to the compressive strength. The crack resistance, shear resistance, torsional bearing capacity and the like of the reinforced concrete are all related to the tensile strength of the concrete. In the theory of concrete strength under multiaxial stress conditions, the tensile strength of concrete is a very important parameter.
In order to improve the defects of poor tensile property, poor ductility and the like of concrete, research on improving the performance of concrete by adding fibers into the concrete is developed quite rapidly. Steel fiber, alkali-resistant glass fiber, carbon fiber, aramid fiber, polypropylene fiber or nylon synthetic fiber concrete and the like are widely studied.
Among them, glass reinforced concrete/steel reinforced concrete has many excellent properties such as high strength, corrosion resistance, leakage resistance, low weight, convenient operation, etc., and has been reported and put to practical use. However, when the polymer material is introduced into concrete materials with greatly different properties, the structure and the properties of the concrete materials are not perfect, and the concrete materials have many aspects which are worthy of modification.
Disclosure of Invention
The invention aims to modify and improve the strength and the performance of glass steel bars applied to glass steel bar/steel bar mixed reinforced concrete, and the glass steel bars are improved, and hydrogel resin is added to improve the compatibility of the glass steel bars, the steel bars and the concrete, so that the strength of the concrete is enhanced.
In order to achieve the above object, the present invention provides a modified glass fiber reinforced plastic bar for reinforced concrete, which is obtained by impregnating continuous glass fibers in an unsaturated polyester resin solution, continuously pultrusion forming the impregnated untwisted glass fiber filaments, and cutting, wherein the unsaturated polyester resin solution comprises: unsaturated polyester resin, aramid fibril fiber and inorganic fiber; wherein:
60-70 parts by weight of continuous glass fiber;
20-30 parts of unsaturated polyester resin;
1-3 parts of aramid fibril fibers;
10-20 parts of inorganic fiber;
the inorganic fiber is selected from one or a mixture of more than two of wollastonite, calcium carbonate and attapulgite.
Preferably, the unsaturated polyester resin matrix is selected from: phthalic acid type, isophthalic acid type, bisphenol A type, and vinyl ester type, halogenated unsaturated polyester resins.
Preferably, the tensile strength of the modified glass reinforced plastic is 200-700MPa, and the bending strength is 300-500 MPa.
Preferably, the length-diameter ratio of the inorganic fiber is (10-20):1, the tensile strength of the modified glass reinforced bar can reach 200-400MPa, and the bending strength can reach 300-400 MPa.
Preferably, the unsaturated polyester resin solution further comprises: 3-6 parts of polypropylene resin or polyamide resin, wherein the modified glass reinforced bar is a thermoplastic glass reinforced bar, the tensile strength can reach 400-700MPa, and the bending strength can reach 400-500 MPa.
The invention also provides a preparation method of the modified glass reinforced plastic bar applied to reinforced concrete, which comprises the following steps:
step 1, uniformly mixing aramid fibril fibers and inorganic fibers into an unsaturated polyester system to obtain an unsaturated polyester resin solution;
step 2, impregnating the continuous glass fiber with the unsaturated polyester resin solution;
and 3, forming the impregnated continuous glass fiber by adopting a continuous extrusion-drawing process, and cutting to obtain the modified glass reinforcing steel bar.
Preferably, in step 1, a polypropylene resin or a polyamide resin is further mixed into the unsaturated polyester system.
The invention also provides the application of the modified glass reinforced bar, which can partially replace the reinforced bar or completely replace the reinforced bar to reinforce the concrete material.
Preferably, said reinforced concrete material comprises:
s1, bundling glass steel bars or the combination of the glass steel bars and steel bars into a steel bar cage, and molding;
s2, adding 10-20 parts by weight of hydrogel resin into every hundred parts by weight of water for preparing concrete to prepare the concrete;
s3, adding the S2 concrete mixed with the hydrogel into the S1 mold for curing to obtain the reinforced concrete material.
Preferably, the reinforced concrete material can be used for a load-bearing wall.
The glass reinforcing steel bar prepared by the continuous filament glass fiber continuous pultrusion process is an anisotropic material, and in order to improve the transverse performance of the material, the invention introduces aramid fibril fibers and inorganic fiber fillers with high length-diameter ratio into the impregnated unsaturated polyester resin, thereby greatly improving the transverse strength and simultaneously improving the comprehensive performance of the glass reinforcing steel bar, including the longitudinal strength.
The invention adopts the continuous filament glass fiber continuous pultrusion process to prepare the thermosetting resin-based and thermoplastic resin-based glass reinforcing steel bars, adopts the continuous glass fiber as the long fiber, can improve the tensile strength and the bending strength of the glass reinforcing steel bars by times compared with the glass fiber (conventional short fiber) with the length of a few millimeters, overcomes the random nonuniformity of the strength of common glass reinforcing steel products, can adopt more glass reinforcing steel bars for the glass reinforcing steel bar/reinforcing steel bar mixed reinforced concrete, and keeps and improves the comprehensive performance of the material.
The invention has the beneficial effects that: 1) the strength of the improved glass reinforced plastic is greatly improved; 2) the weight is light, the building load can be effectively reduced, the labor intensity is reduced, and the production efficiency is improved; 3) the compatibility of the glass reinforced bar-reinforcing bar and concrete is good, and the problem of large difference between the performances of the polymer material and the concrete is solved; the strength of the reinforced concrete material provided by the reinforced concrete is greatly improved, and the corrosion resistance and water seepage resistance of the concrete material are improved; 4) the preparation method is energy-saving and environment-friendly, can prepare the concrete material with high strength standard, and is particularly suitable for building materials such as bearing walls and the like with high requirements on the strength of the concrete.
Detailed Description
The concrete is commercially available common concrete, and is artificial stone prepared by mixing cement serving as a main cementing material, water, sand, stones and chemical additives and mineral additives in a proper proportion and uniformly stirring, compacting, forming, curing and hardening.
The term "steel bar (Rebar)" as used herein means a steel material for reinforced concrete and prestressed reinforced concrete, which has a circular cross section and sometimes a square cross section with rounded corners. Including plain round steel bars, ribbed steel bars, twisted steel bars, and the like.
Glass fiber (original English name: glass fiber) is an inorganic non-metallic material with excellent performance, and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittleness and poor wear resistance. The hair-care fiber is made of seven kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and boromagnesite through the processes of high-temperature melting, wire drawing, winding, weaving and the like, wherein the diameter of each monofilament ranges from several micrometers to twenty micrometers, the monofilament is equivalent to 1/20-1/5 of one hair, and each bundle of fiber precursor consists of hundreds of even thousands of monofilaments. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and other various fields of the national economy.
The pultrusion process is a method for continuously producing composite material section, which comprises the steps of impregnating twistless glass fiber roving on a creel with resin, other continuous reinforcing materials, polyester surface felt and the like, keeping a forming die with a certain section shape, curing and forming in the die, and then continuously demoulding to form a pultrusion product.
The glass reinforced plastic bar-steel bar mixed reinforced concrete material is used for reinforcing concrete by glass reinforced plastic bars and steel bars.
The glass reinforced bar provided by the invention comprises a thermosetting resin-based glass reinforced bar and a thermoplastic resin-based glass reinforced bar. The invention improves the performance of the glass reinforced plastic bar, and comprises the following steps: the strength of the glass reinforced plastic bar is improved, the anisotropy is improved, the compatibility with concrete is improved, and the leakage resistance and the corrosion resistance of the concrete are improved.
The thermosetting resin-based glass reinforcing steel bar is prepared by adopting a continuous filament glass fiber continuous extrusion and drawing process, the tensile strength can reach 200-300MPa, and the bending strength can reach 250-300 MPa.
In the process of preparing the thermosetting resin-based glass reinforcing steel bar by the continuous filament glass fiber continuous extrusion drawing process, aramid fibril fiber and inorganic fiber filler with high length-diameter ratio are adopted, the length-diameter ratio is 10-20:1, unsaturated polyester resin is introduced, the tensile strength can reach 200-400MPa, and the bending strength can reach 300-400 MPa.
And then introducing polypropylene resin or polyamide resin, and preparing the thermoplastic resin-based glass reinforcing steel bar by adopting a continuous filament glass fiber continuous extrusion and drawing process, wherein the tensile strength can reach 400-700MPa, and the bending strength can reach 400-500 MPa.
Preparing concrete materials with corresponding standards: according to the concrete specification, quantitative glass reinforced bars, reinforcing steel bars and hydrogel are introduced. Specifically, the modified glass steel bars partially replace steel bars or completely replace steel bars to form a steel bar cage, and a mold is formed; the hydrogel resin is introduced into the existing cement for preparing concrete, and then the cement is added into a mold for curing to obtain the reinforced concrete material, wherein the permeability resistance, the corrosion resistance and the compatibility with glass reinforced bars are greatly improved.
The hydrogel resin refers to acrylic hydrogel resin.
EXAMPLE 1 preparation of thermosetting glass Rebar
60 parts by weight of untwisted glass fiber filaments were impregnated with 20 parts by weight of an unsaturated polyester, and 1 part by weight of an aramid pulp and 10 parts by weight of a wollastonite filler (preferably needle-like wollastonite) were further added to the impregnated unsaturated polyester. And continuously extruding and drawing the impregnated untwisted glass fiber filaments for forming, and cutting to obtain the glass reinforced bar with the required length. The tensile strength of the obtained glass reinforced bar can reach 200MPa, and the bending strength can reach 300 MPa.
EXAMPLE 2 preparation of thermosetting glass Rebar
70 parts by weight of untwisted glass fiber filaments were dipped in 30 parts by weight of unsaturated polyester, and 3 parts by weight of aramid pulp and 20 parts by weight of attapulgite filler were further added to the dipped unsaturated polyester. And continuously extruding and drawing the impregnated untwisted glass fiber filaments for forming, and cutting to obtain the glass reinforced bar with the required length. The tensile strength of the obtained glass reinforced bar can reach 400MPa, and the bending strength can reach 400 MPa.
EXAMPLE 3 preparation of thermoplastic glass reinforcing bars
63 parts by weight of untwisted glass fiber filaments are adopted to be impregnated into 26 parts by weight of unsaturated polyester, 2 parts by weight of aramid pulp, 13 parts by weight of calcium carbonate filler and 6 parts by weight of melted polypropylene resin are further added into the impregnated unsaturated polyester, the polypropylene resin impregnated glass fiber is prepared by the process similar to the example 1, the content of the glass fiber is 60 percent, the tensile strength can reach 700MPa, the bending strength can reach 500MPa, and the glass fiber is bundled into glass reinforcing steel bars under the infrared or laser condition to be used for preparing glass reinforcing steel bar/reinforcing steel bar mixed reinforced concrete.
Example 4 preparation of concrete containing hydrogel
10-20 parts by weight of hydrogel is added into every hundred parts by weight of water for preparing concrete, and the hydrogel is applied to preparing glass reinforced bar/reinforced bar mixed reinforced concrete, so that the permeability resistance, the corrosion resistance and the compatibility with the glass reinforced bar of the material are improved.
EXAMPLE 5 preparation of glass-reinforced-Bar hybrid reinforced concrete Material
The modified glass reinforced plastic bar prepared in the example 1 is partially used for replacing a conventional reinforced bar, a steel bar cage is formed by bundling, a mold is formed, concrete mixed with hydrogel is added for curing, and the glass reinforced plastic bar-reinforced concrete material is prepared. Wherein 5 parts by weight of hydrogel is added to every hundred parts by weight of water used for preparing the concrete.
EXAMPLE 6 preparation of glass-reinforced concrete Material
The modified glass reinforced plastic bar prepared in the embodiment 1 is adopted to completely replace the conventional steel bar, a steel bar cage is formed by bundling, a mold is formed, concrete mixed with hydrogel is added for curing, and the glass reinforced plastic bar reinforced concrete material is prepared. Wherein 5 parts by weight of hydrogel is added to every hundred parts by weight of water used for preparing the concrete.
In conclusion, the modified glass reinforced bar provided by the invention is light in weight, can effectively reduce building load, reduce labor intensity, improve production efficiency, is energy-saving and environment-friendly, has high economic benefit, can completely replace conventional reinforced bars or partially replace conventional reinforced bars to mix and reinforce concrete materials, increases the strength, toughness and corrosion resistance of concrete, and can be used for a load-bearing wall structure.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. The modified glass reinforced plastic bar applied to reinforced concrete is characterized in that continuous glass fibers are soaked in an unsaturated polyester resin solution, the soaked continuous glass fibers are continuously extruded and drawn to form, and the modified glass reinforced plastic bar is obtained by cutting, wherein the unsaturated polyester resin solution comprises: unsaturated polyester resin, aramid fibril fiber and inorganic fiber; wherein:
the inorganic fiber is selected from one or a mixture of more than two of wollastonite, calcium carbonate and attapulgite.
2. The modified glass reinforced bar for reinforcing concrete according to claim 1, wherein the unsaturated polyester resin matrix is selected from the group consisting of: phthalic acid type, isophthalic acid type, bisphenol A type, and vinyl ester type, halogenated unsaturated polyester resins.
3. The modified glass reinforced plastic bar for reinforcing concrete as claimed in claim 1, wherein the modified glass reinforced plastic bar has a tensile strength of 200-700MPa and a bending strength of 300-500 MPa.
4. The modified glass fiber reinforced plastic bar for reinforcing concrete as claimed in claim 1, wherein the aspect ratio of the inorganic fiber is (10-20):1, the tensile strength of the modified glass fiber reinforced plastic bar can reach 200-400MPa, and the bending strength can reach 300-400 MPa.
5. The modified glass reinforced bar for reinforcing concrete according to claim 1, wherein the unsaturated polyester resin solution further comprises: 3-6 parts of polypropylene resin or polyamide resin, wherein the modified glass reinforced bar is a thermoplastic glass reinforced bar, the tensile strength can reach 400-700MPa, and the bending strength can reach 400-500 MPa.
6. A method for preparing a modified glass fibre reinforced bar for reinforcing concrete according to any one of claims 1 to 5, comprising:
step 1, uniformly mixing aramid fibril fibers and inorganic fibers into an unsaturated polyester system to obtain an unsaturated polyester resin solution;
step 2, impregnating the continuous glass fiber with the unsaturated polyester resin solution;
and 3, forming the impregnated continuous glass fiber by adopting a continuous extrusion-drawing process, and cutting to obtain the modified glass reinforcing steel bar.
7. The method of claim 6, wherein in the step 1, a polypropylene resin or a polyamide resin is further mixed into the unsaturated polyester system.
8. Use of a modified glass fibre reinforced bar according to any one of claims 1 to 5 for reinforcing concrete, which is capable of partially or completely replacing the reinforcing bar to reinforce the concrete material.
9. Use of a modified glass fibre reinforced bar for reinforcing concrete according to claim 8, wherein the reinforced concrete material comprises:
s1, bundling glass steel bars or the combination of the glass steel bars and steel bars into a steel bar cage, and molding;
s2, adding 10-20 parts by weight of hydrogel resin into every hundred parts by weight of water for preparing concrete to prepare the concrete;
s3, adding the S2 concrete mixed with the hydrogel into the S1 mold for curing to obtain the reinforced concrete material.
10. The use of the modified glass reinforced plastic for reinforced concrete according to claim 8, wherein the reinforced concrete material is used for load-bearing walls.
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| CN201911121073.5A CN110642554A (en) | 2019-11-15 | 2019-11-15 | Modified glass reinforced bar applied to reinforced concrete, preparation method and application thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000247697A (en) * | 1999-03-02 | 2000-09-12 | Yasuda Kogyo Kk | Steel fiber for reinforcement of concrete and its production and steel fiber reinforce concrete product |
| CN1915886A (en) * | 2005-08-19 | 2007-02-21 | 深圳市海川实业股份有限公司 | Mixed aramid fiber and glass fiber enhanced resin rib |
| CN104059325A (en) * | 2014-06-06 | 2014-09-24 | 四川航天五源复合材料有限公司 | Cable reinforcing rib |
| CN104725780A (en) * | 2015-02-28 | 2015-06-24 | 河海大学 | Hybrid basalt fiber and glass fiber reinforced resin |
| CN106916440A (en) * | 2015-12-25 | 2017-07-04 | 上海杰事杰新材料(集团)股份有限公司 | A kind of continuous fibre enhancement resin muscle and preparation method thereof |
-
2019
- 2019-11-15 CN CN201911121073.5A patent/CN110642554A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000247697A (en) * | 1999-03-02 | 2000-09-12 | Yasuda Kogyo Kk | Steel fiber for reinforcement of concrete and its production and steel fiber reinforce concrete product |
| CN1915886A (en) * | 2005-08-19 | 2007-02-21 | 深圳市海川实业股份有限公司 | Mixed aramid fiber and glass fiber enhanced resin rib |
| CN104059325A (en) * | 2014-06-06 | 2014-09-24 | 四川航天五源复合材料有限公司 | Cable reinforcing rib |
| CN104725780A (en) * | 2015-02-28 | 2015-06-24 | 河海大学 | Hybrid basalt fiber and glass fiber reinforced resin |
| CN106916440A (en) * | 2015-12-25 | 2017-07-04 | 上海杰事杰新材料(集团)股份有限公司 | A kind of continuous fibre enhancement resin muscle and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 神奇的科学奥秘编委会: "《神奇的科学奥秘》", 30 September 2016, 中国社会出版社 * |
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Application publication date: 20200103 |