CN103786382B - Inorganic glue fibrous composite reinforcement and protect concrete by method - Google Patents

Inorganic glue fibrous composite reinforcement and protect concrete by method Download PDF

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Publication number
CN103786382B
CN103786382B CN201310684927.7A CN201310684927A CN103786382B CN 103786382 B CN103786382 B CN 103786382B CN 201310684927 A CN201310684927 A CN 201310684927A CN 103786382 B CN103786382 B CN 103786382B
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concrete
inorganic
adhesive
phosphate
fibre sheet
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CN103786382A (en
Inventor
丁铸
崔棚
董必钦
刘伟
陆晗
邢锋
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Shenzhen University
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Shenzhen University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04Interconnection of layers
    • B32B7/12Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/34Compositions 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 cold phosphate binders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/02Coating on the layer surface on fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00Coating on the layer surface
    • B32B2255/20Inorganic coating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02Synthetic macromolecular fibres
    • B32B2262/0261Polyamide fibres
    • B32B2262/0269Aromatic polyamide fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/105Ceramic fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00Properties of the layers or laminate
    • B32B2307/30Properties of the layers or laminate having particular thermal properties
    • B32B2307/306Resistant to heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00482Coating or impregnation materials
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a kind of inorganic glue fibrous composite reinforcement and protect concrete by method, pasting inorganic adhesive fibre sheet material layers of reinforcement at surface of concrete structure, comprise the following steps: (1) carries out coarse process to the surface of concrete component;(2) mixed with water by inorganic coagulation material, stir formation inorganic adhesive;(3) at the one layer of inorganic adhesive of surface uniform application of the concrete component handled well;(4) on the inorganic adhesive that fibre sheet material is pasted onto;(5) fibre sheet material paved, be compacted, after aerofluxus again at one layer of inorganic adhesive of fibre sheet material outer surface brushing.The present invention improves rupture strength and the impact flexibility of concrete, and the internal material of xoncrete structure is played reinforcement and protective effect.The resistance to elevated temperatures of inorganic adhesive fibrous composite is good, life-span length, safe and environment-friendly;Easy construction of the present invention, it is simple to popularization and application in engineering construction and reinforcing, has good economic benefit.

Description

Inorganic glue fibrous composite reinforcement and protect concrete by method
[technical field]
The present invention relates to concrete reinforcement, particularly relate to inorganic glue fibrous composite reinforcement and the side of protecting concrete by Method.
[background technology]
Xoncrete structure under arms during owing to jointly being acted on various environmental corrosion media by load, and gradually send out Raw structure deterioration, causes crackle occur, and crack is even destroyed, thus reduced the safety of concrete structure, shortens and uses the longevity Life.In order to repair the xoncrete structure of deterioration in time, it is ensured that its safety used, extend its service life, it is necessary to deterioration Concrete carry out repairing and reinforcement.At present, reinforcement and strengthening many employings surface mount fibre reinforced composites of concrete, example The fibre reinforced composites (CFRP) constituted with epoxy organic gel such as carbon cloth.CFRP has high-strength, efficient, light weight and executes The convenient advantage of work and be used widely, define the technical system of comparative maturity, China has also formulated that " xoncrete structure adds Gu design specification " (GB50367-2006) and " structure reinforcement and repair carbon fiber plate " (GB/T21490-2008).But paste Epoxies organic gel have following defect, (1) softening temperature is relatively low, mostly typically is 60~80 DEG C, meeting under high temperature and fire Volatilizing toxic gas, therefore epoxy radicals can be typically considered poisonous or carcinogen with the multiple radical reaction in human body Matter, this brings threat greatly to the security of the lives and property of people;(2) meeting accelerated ageing, serious shadow under ultraviolet irradiation Ring adhesive property;(3) big with the elastic modelling quantity gap of the concrete material of mineral-type, repeatedly expanding with heat and contract with cold and moisture expansion and drying shrinkage follows Under the conditions of ring, both deformations, it is easily generated crack, thus poor compatibility.For such issues that, application for a patent for invention (CN102351443A, CN201210356357), discloses high temperature resistant alkali slag gel material and preparation method thereof, can be necessarily The problem solving epoxies organic gel non-refractory in degree, but because its construction method is comparatively laborious, be unfavorable in engineering reality Popularization and application.
[summary of the invention]
The inorganic glue that the technical problem to be solved in the present invention is to provide a kind of safe and environment-friendly, life-span length and easy construction is fine Tie up composite reinforcement and protect concrete by method.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is, a kind of inorganic glue fibrous composite is mended Strong and protect concrete by method, paste inorganic adhesive-fibre sheet material layers of reinforcement, construction bag at surface of concrete structure Include following steps:
(1) surface of concrete component is carried out coarse process;
(2) mixed with water by inorganic coagulation material, stir formation inorganic adhesive;
(3) at the one layer of inorganic adhesive of surface uniform application of the concrete component handled well;
(4) on the inorganic adhesive that fibre sheet material is pasted onto;
(5) fibre sheet material paved, be compacted, after aerofluxus again at one layer of inorganic adhesive of fibre sheet material outer surface brushing;
(6) if using the inorganic adhesive-fibre sheet material layers of reinforcement of multi-layer fiber sheet material, then step (4) is repeated (5).
The process described above, described fibre sheet material is unidirectional fiber layers or fiber fabric layer.
The process described above, described fiber is in glass fibre, carbon fiber, basalt fibre or aramid fiber Kind or multiple combination.
Above method, described inorganic adhesive is phosphate adhesive, phosphate adhesive by weight, by following group It is grouped into:
The process described above, phosphate adhesive is by weight, composed of the following components:
The process described above, the described 8%-15% that retarder weight is magnesia weight;The weight of water is phosphate glue The 18-25% of gel material percentage by weight.
The process described above, described dihydric phosphate is in potassium dihydrogen phosphate, sodium dihydrogen phosphate and ammonium dihydrogen phosphate At least one, described inorganic mineral filler is flyash, wollastonite in powder, ground granulated blast furnace slag, steel-making slag powder, Kaolin, higher At least one in ridge soil, zeolite, described retarder is at least one in Borax and boric acid;Magnesia is reheating magnesia, electricity At least one in fused magnesia and seawater magnesia, the magnesia content in reheating magnesia, fused magnesite or seawater magnesia is not less than 80%.
The process described above, before step (4), soaks fibre sheet material in putting inorganic adhesive and pestle smashes 3~6 Minute.
The process described above, repeats step (4) and (5), it is thus achieved that the inorganic adhesive-fibre sheet material of multi-layer fiber sheet material Layers of reinforcement.
The method of the present invention improves rupture strength and the impact flexibility of concrete component, inorganic adhesive-fibre sheet material Layers of reinforcement has intercepted the infiltration to concrete of the extraneous corrosive medium, and the internal material of concrete component is played reinforcement and guarantor Protect effect, the service life of concrete can be extended.Inorganic coagulation material is close with the elastic modelling quantity of concrete material, deformation Harmony is good, has a preferable interface compatibility, and resistance to elevated temperatures is good, life-span length, safe and environment-friendly.Concrete of the present invention Fibrous composite reinforced structure easy construction, it is simple to popularization and application in engineering construction and reinforcing, has good economic effect Benefit.
[accompanying drawing explanation]
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is that embodiment of the present invention concrete fibrous composite reinforced structure uses section during 1 layer of fibre sheet material to show It is intended to;
Fig. 2 is that embodiment of the present invention concrete fibrous composite reinforced structure uses section during 2 layers of fibre sheet material to show It is intended to;
In figure: 3-concrete component, 2-inorganic adhesive, 1-fibre sheet material.
[detailed description of the invention]
Inorganic glue fibrous composite reinforcement of the present invention and protect concrete by method, pastes nothing at surface of concrete structure Machine adhesive-fibre sheet material layers of reinforcement, its construction method comprises the following steps:
(1) surface to concrete component carries out coarse, dabbing process;
(2) mixed with water by inorganic coagulation material, stir formation inorganic adhesive;
(3) at one layer of inorganic adhesive of the concrete surface uniform application handled well;
(4) on the inorganic adhesive that fibre sheet material is entirely pasted onto;
(5) fibre sheet material paved, be compacted, after aerofluxus again at one layer of inorganic adhesive of fibre sheet material outer surface brushing;
(6) if using the layers of reinforcement of multi-layer fiber sheet material, then step (4) and (5) are repeated.
Fibrous composite includes inorganic adhesive-fibre sheet material layers of reinforcement, and fibrous sheet layer is clipped in inorganic gluing In agent, can be one or more layers, inorganic adhesive-fibre sheet material layers of reinforcement be pasted onto on the surface of concrete component; Wherein, inorganic adhesive is mixed with water by inorganic coagulation material.
Fibre sheet material can be unidirectional fiber layers or fiber fabric layer.
Fiber is the combination of one or more in glass fibre, carbon fiber, basalt fibre or aramid fiber.
Inorganic adhesive is phosphate adhesive, and phosphate adhesive is by weight, composed of the following components:
Wherein, dihydric phosphate can at least one in potassium dihydrogen phosphate, sodium dihydrogen phosphate and ammonium dihydrogen phosphate, inorganic ore deposit Thing filler is at least one in flyash, wollastonite in powder, ground granulated blast furnace slag, steel-making slag powder, Kaolin, metakaolin, zeolite, slow Solidifying agent is at least one in Borax and boric acid;Magnesia is at least one in reheating magnesia, fused magnesite and seawater magnesia, weight Burn the magnesia content in magnesia, fused magnesite or seawater magnesia not less than 80%.
In phosphate adhesive, retarder weight is the 8%-15% of magnesia weight;The weight of water is phosphate concrete The 18-25% of percentage by weight.
Table 1: the proportioning table of embodiment 1-10 phosphate adhesive
(weight portion) Potassium dihydrogen phosphate Magnesia Flyash Borax Water
Embodiment 1 100 60 55 4 55
Embodiment 2 100 62 60 6 55
Embodiment 3 100 70 50 8 50
Embodiment 4 100 70 40 12 45
Embodiment 5 100 80 40 12 50
Embodiment 6 100 75 40 12 45
Embodiment 7 100 80 0 15 35
Embodiment 8 100 80 40 15 50
Embodiment 9 100 70 10 14 40
Embodiment 10 100 70 10 10 40
Embodiment 1
The construction method of the embodiment of the present invention 1 concrete fibrous composite reinforced structure is as follows: preparation C40 coagulating cement Soil beam sample, a size of 100mm × 100mm × 550m.In concrete sample setting and hardening maintenance 28 days at the standard conditions After, is polished in its surface and dabbing processes.
Fibrous material uses the carbon fiber HITEX-C200 of Nanjing Hitech Composites Co., Ltd., and its performance is shown in Table 1。
Table 1: carbon fiber performance table
Prepare inorganic cementing agent;Phosphate adhesive is mixed with water by powdered acid salt Binder Materials, stirring forms.
The parts by weight of the powdered acid salt Binder Materials in the present embodiment are, potassium dihydrogen phosphate 100, magnesia 60, fine coal Ash 55, Borax 4;The parts by weight of water are 55.The preparation method of phosphate cementing agent be the raw material of powdery is weighed in proportion, Mixing, stirs with water in blender, obtains required inorganic cementing agent.
Paste fibre sheet material.With clean scoop, inorganic cementing agent is brushed the surface at beams of concrete, thickness uniformly It is 1~1.5mm.And unidirectional continuous carbon fibre sheet material is entirely pasted onto on adhesive;Compacting, aerofluxus.Again unidirectional continuously Uniformly spreading out and putting on one layer of inorganic adhesive on carbon fiber plate, thickness is 1~1.5mm, compacting, aerofluxus, after it hardens, enters it Row deburring processes, the beams of concrete of available surface mount.The fibre sheet material used is 1 layer.When pasting fibrous composite, The two ends of beams of concrete respectively reserve the length of 50mm, and during to ensure to load test, fiber cloth will not be produced by the fixed constraint at two ends Raw binding effect.
The concrete fibrous composite reinforced structure test specimen of the present embodiment mixes with blank after solidifying at ambient temperature 7 days Solidifying Tu Liang carries out contrast test, at material experiment-machine (NYL-300 type) its four point bending strength of upper test, every three beams of concretes It is one group, the bending strength that average bending strength is this group of three beams of concretes.The four point bending strength of blank beams of concrete For 10.68MPa, use the beams of concrete that 1 layer of unidirectional continuous carbon fibre is pasted, the increasing compared with blank beams of concrete of its bending strength Add 55%.
Embodiment 2
The parts by weight of the powdered acid salt Binder Materials in the present embodiment are, potassium dihydrogen phosphate 100, magnesia 62, fine coal Ash 60, Borax 6.The parts by weight of water are 55.The preparation method of phosphate cementing agent be the raw material of powdery is weighed in proportion, Mixing, stirs with water in blender, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 2 layers. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 65% compared with blank beams of concrete.
Embodiment 3
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 70, flyash 50, Borax 8.Water Parts by weight be 50.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, at blender In stir with water, obtain required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 1 layer. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 58% compared with blank beams of concrete.
Embodiment 4
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 70, flyash 40, Borax 12. The parts by weight of water are 45.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 2 layers. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 67% compared with blank beams of concrete.
Embodiment 5
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 80, flyash 40, Borax 12. The parts by weight of water are 50.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 1 layer. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 60% compared with blank beams of concrete.
Embodiment 6
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 75, flyash 40, Borax 12. The parts by weight of water are 45.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 2 layers. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 70% compared with blank beams of concrete.
Embodiment 7
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 80, Borax 15.The weight portion of water Number is 35.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, and stirs with water in blender Mix uniformly, obtain required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 1 layer. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 59% compared with blank beams of concrete.
Embodiment 8
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 80, flyash 40, Borax 15. The parts by weight of water are 50.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 2 layers. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 72% compared with blank beams of concrete.
Embodiment 9
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 70, flyash 10, Borax 14. The parts by weight of water are 40.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 1 layer. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 58% compared with blank beams of concrete.
Embodiment 10
The parts by weight of powdered acid salt Binder Materials are, potassium dihydrogen phosphate 100, magnesia 70, flyash 10, Borax 10. The parts by weight of water are 40.The preparation method of phosphate cementing agent is that the raw material of powdery is weighed in proportion, mixed, in stirring Machine stirs with water, obtains required inorganic cementing agent.
According to the method described in embodiment 1, preparing fibrous composite and paste beams of concrete, carbon fiber plate is 2 layers. After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material experiment-machine (NYL-300 type) upper its four point bending strength of testing, its bending strength adds 73% compared with blank beams of concrete.
Embodiment 11
According to the phosphate concrete composition and ratio of embodiment 1, prepare inorganic adhesive.Carbon fiber plate is existed in advance Magnesium phosphate cement inorganic adhesive soaks and pestle is smash 5 minutes, and paste beams of concrete according to the method for embodiment 1.Carbon Fibre sheet material is one layer.
After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material Upper its four point bending strength of testing of experimental machine (NYL-300 type), its bending strength adds 60% compared with blank beams of concrete.
Embodiment 12
According to the phosphate concrete composition and ratio of embodiment 2, prepare inorganic adhesive.Carbon fiber plate is existed in advance Magnesium phosphate cement inorganic adhesive soaks and pestle is smash 5 minutes, and paste beams of concrete according to the method for embodiment 1.Carbon Fibre sheet material is two layers.
After the concrete fibrous composite reinforced structure test specimen of the present embodiment solidifies 7 days at ambient temperature, at material Upper its four point bending strength of testing of experimental machine (NYL-300 type), its bending strength adds 68% compared with blank beams of concrete.

Claims (8)

1. an inorganic glue fibrous composite reinforcement and protect concrete by method, it is characterised in that at concrete component table Inorganic adhesive-fibre sheet material layers of reinforcement is pasted in face, and construction comprises the following steps:
(1) surface of concrete component is carried out coarse process;
(2) mixed with water by inorganic coagulation material, stir formation inorganic adhesive;
(3) at the one layer of inorganic adhesive of surface uniform application of the concrete component handled well;
(4) on the inorganic adhesive that fibre sheet material is pasted onto;
(5) fibre sheet material paved, be compacted, after aerofluxus again at one layer of inorganic adhesive of fibre sheet material outer surface brushing;
Described inorganic adhesive is phosphate adhesive;
Described phosphate adhesive is by weight, composed of the following components:
Method the most according to claim 1, it is characterised in that described fibre sheet material is unidirectional fiber layers or fiber is knitted Nitride layer.
Method the most according to claim 1, it is characterised in that described fiber is glass fibre, carbon fiber, basalt fibre The combination of one or more in dimension or aramid fiber.
Method the most according to claim 1, it is characterised in that phosphate adhesive is by weight, composed of the following components:
Method the most according to claim 1, it is characterised in that the described 8%-that retarder weight is magnesia weight 15%;The weight of water is the 18-25% of phosphate concrete percentage by weight.
Method the most according to claim 1, it is characterised in that described dihydric phosphate is potassium dihydrogen phosphate, di(2-ethylhexyl)phosphate At least one in hydrogen sodium and ammonium dihydrogen phosphate, described inorganic mineral filler be flyash, wollastonite in powder, ground granulated blast furnace slag, At least one in steel-making slag powder, Kaolin, metakaolin, zeolite, described retarder is at least one in Borax and boric acid; Magnesia is at least one in reheating magnesia, fused magnesite and seawater magnesia, in reheating magnesia, fused magnesite or seawater magnesia Magnesia content is not less than 80%.
Method the most according to claim 1, it is characterised in that before step (4), by fibre sheet material put inorganic gluing Agent is soaked and pestle smashes 3~6 minutes.
Method the most according to claim 1, it is characterised in that repeat step (4) and (5), it is thus achieved that multi-layer fiber sheet material Inorganic adhesive-fibre sheet material layers of reinforcement.
CN201310684927.7A 2013-12-13 2013-12-13 Inorganic glue fibrous composite reinforcement and protect concrete by method Active CN103786382B (en)

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PCT/CN2014/087176 WO2015085806A1 (en) 2013-12-13 2014-09-23 Method for reinforcing and protecting concrete using inorganic adhesive fiber composite material

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CN103786382B (en) * 2013-12-13 2016-09-14 深圳大学 Inorganic glue fibrous composite reinforcement and protect concrete by method
CN104228184B (en) * 2014-09-19 2015-12-02 深圳大学 A kind of phosphate base fibrous composite and preparation method thereof
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