CN107311571A - The preparation method of nanometer enhancing TRC composites - Google Patents
The preparation method of nanometer enhancing TRC composites Download PDFInfo
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- CN107311571A CN107311571A CN201710620146.XA CN201710620146A CN107311571A CN 107311571 A CN107311571 A CN 107311571A CN 201710620146 A CN201710620146 A CN 201710620146A CN 107311571 A CN107311571 A CN 107311571A
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- Prior art keywords
- nanometer
- trc
- preparation
- composites
- strengthens
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Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/1025—Coating to obtain fibres used for reinforcing cement-based products
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/1095—Coating to obtain coated fabrics
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/14—Spraying
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/16—Dipping
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses the preparation method of a kind of nanometer of enhancing TRC composite, comprise the following steps that：Step 1: epoxy resin is mixed with curing agent, then nanometer reinforcer is added into mixture to be sufficiently mixed, alkali-resistant glass fibre mesh grid is immersed in the mixture of epoxy resin and curing agent after being sufficiently mixed, or mixture is brushed to the surface of fiber knitted net；Step 2: concrete batching is stirred, chopped strand is added in whipping process；Step 3: the alkali-resistant glass fibre mesh grid that step one is prepared is placed in template, the concrete slurry configured in step 2 is poured, maintenance is stripped after hardening.The present invention, to strengthen the anti-bending strength and compression strength of composite, is ftractureed and fracture width by the addition of nano material while can also be reduced by the addition of nano material on both macro and micro yardstick.
Description
Technical field
The invention belongs to the system of cement-base composite material Enhancement Method, more particularly to a kind of nanometer of enhancing TRC composite
Preparation Method.
Background technology
Concrete as in contemporary civil engineering apply most construction materials, be widely used in water conservancy, traffic, building,
The engineerings such as harbour, it uses existing more than 100 years history.China has also undergone from the concrete works built on a large scale after the founding of the state
The history of over half a century.It has been enter into aging period more in the presence of the Nature physics, chemistry and biology.Various viruses are such as
Cracking, carbonization, frost and melt damage etc. have had a strong impact on the normal of concrete structure and used.Therefore for the dimension of concrete structure facility
Shield, reparation and reinforcing have turned into the new problem that China has faced.With the situation that concrete is used under extensive, extreme environmental conditions
More and more, the problem of concrete itself is present needs us to go gradually to recognize and improve.If can not properly, efficiently solve
Some problems that concrete is present, it will be difficult to significantly expand the purposes of concrete.The durability of concrete structure is only improved, is prolonged
Long life, could reduce maintenance renovation expense, reduce energy resource consumption, save material, so as to fully using resource protect
Shield ecological environment, realization meet the fundamental state policy of low-carbon emission reduction type sustainable development.
Fiber knitted net enhancing concrete (Textile Reinforced Concrete) is a kind of NEW TYPE OF COMPOSITE Building wood
Material, fiber knitted net is positioned in fine concrete by it, thus the placement direction of fiber is controllable, obtains the intensity of fiber
To making full use of.TRC has the advantages that high capacity, ductility are good, thin and lightweight, and corrosion-resistant, no magnetic disturbance.In TRC
Fiber knitted net has alkali-resistant glass fibre, carbon fiber, aramid fiber, basalt fibre etc., due to the corrosion resistance of fiber, thus
Fiber knitted net strengthens requirement of the concrete without consideration fibrous protective layer thickness, and the thickness of structural elements depends primarily on fiber
The anchor layer thickness of net, that is, only need to the fiber knitted net enhancing not peeling-off destruction of concrete, the thickness of concrete component can
To reach 10~20mm, this is that reinforced concrete member can not be realized.In view of TRC component is very thin, thus for reinforcing
Component can't make the deadweight of structure increase a lot, while the ultimate bearing capacity of component can be improved, reduce the width in crack.But
That current fiber knitted net enhancing concrete crack easily occurs in use, and deformability is weak, bending strength not
It is good.
The content of the invention
Strengthen TRC composites using nanometer it is an object of the invention to provide one kind, reach control cement base composite wood
Expect crack, the deformability for increasing substantially TRC composites, bending strength, possess the preparation method of higher tensile strength.
The invention provides the preparation method of a kind of nanometer of enhancing TRC composite, comprise the following steps that：
Step 1: epoxy resin is mixed with curing agent, nanometer reinforcer is then added into mixture is sufficiently mixed, and fills
Alkali-resistant glass fibre mesh grid is immersed in the mixture of epoxy resin and curing agent after point mixing, or mixture is brushed to
The surface of fiber knitted net；
Step 2: concrete batching is stirred, chopped strand is added in whipping process；
Step 3: the alkali-resistant glass fibre mesh grid that step one is prepared is placed in template, pours in step 2 and configure
Concrete slurry, after hardening be stripped maintenance.
Preferably, in a specific embodiment, making step one epoxy resin be mixed with curing agent by 2.2:1
To 2.8:1 ratio mixing.
Further, it is nanometer silicon ash to make the nanometer reinforcer in the step one, and the amount of participating in of nanometer silicon ash is more than
0.15%.
Further, concrete batching in the step 2 is made：Portland cement PC325 470kg/m3, second patent flour coal
Grey 236kg/m3, the miberal powder 38kg/m of 0.11-0.16 μm of average grain diameter3, Sika three generations modeling agent 3.2kg/m3, particle diameter 0-1.2mm's
Normal sand 1380kg/m3, running water 168kg/m3。
In a detailed embodiment, the chopped strand added in the step 2 includes steel fibre and glass fibre.
Further, the length for making the steel fibre is 6mm.
Further, the length for making the glass fibre is 12mm.
In order to ensure the bonding of fiber knitted net and matrix, make the interlamellar spacing of the multilayer alkali-resistant glass fibre 5mm with
On.
The present invention, to strengthen the anti-bending strength and compression strength of composite, is passed through simultaneously by the addition of nanometer reinforcer
The addition of nano material can also reduce cracking and fracture width on both macro and micro yardstick, solve the corrosion of armored concrete
Problem, is particularly suitable for the enhancing and reinforcing of concrete structure under corrosive environment, reduces maintenance cost.
Embodiment
Preferred embodiment one, this nanometer that the present embodiment is provided strengthens the preparation method of TRC composites, including as follows
Step：
(1) epoxy resin and curing agent are pressed 10:4 ratio mixing, then nanometer silicon ash is incorporated into mixture, nanometer
The amount of participating in of silicon ash is 0.2%, and alkali-resistant glass fibre mesh grid is immersed into epoxy resin, curing agent and nano-silicon after being sufficiently mixed
In the mixture of ash；
(2) by concrete batching：Portland cement PC325 470kg/m3, second class powered coal ash 236kg/m3, average grain diameter
0.11-0.16 μm of miberal powder 38kg/m3, Sika three generations modeling agent 3.2kg/m3, particle diameter 0-1.2mm normal sand 1380kg/m3, from
Water 168kg/m3；The steel fibre and 12 millimeters of glass fibre of 6 millimeters of addition in whipping process；
(3) after epoxy cure, the alkali-resistant glass fibre mesh grid prepared in four layers (1) is placed in template,
Interlamellar spacing is more than 5mm between adjacent two layers alkali-resistant glass fibre mesh grid, and the concrete poured in (2) is foster after being stripped after its hardening
Shield.
The present embodiment makees the matrix of TRC composites using the cement mortar mixed with 6mm steel fibres and 12mm glass fibres；
Before in chopped strand embedment cement mortar, first fiberglass braided net epoxy resin should be impregnated or be brushed, to improve
The bonding of fiber knitted net and matrix；Epoxy resin and curing agent are pressed 10 again：4 ratio mixing, nanometer silicon ash is incorporated into
Stirred in mixture, after it is sufficiently mixed, fiberglass braided net is immersed in the mixture of epoxy resin and curing agent or
Using brush brushing on the surface of fiber knitted net.Enhancing alkali-resistant glass fibre used is 4 layers.Product at preparation can be
Cracking and fracture width are reduced on both macro and micro yardstick, this point can solve the etching problem of armored concrete, especially fitted
The enhancing and reinforcing of concrete structure under corrosive environment are closed, maintenance cost is reduced；Add the cement base composite wood of nano material
The anti-bending strength and compression strength of material are strengthened, even if the amount of participating in as little as 0.15%, its enhancing effect is also obvious.
Claims (8)
1. the preparation method of a kind of nanometer of enhancing TRC composite, is comprised the following steps that：
Step 1: epoxy resin is mixed with curing agent, nanometer reinforcer is then added into mixture is sufficiently mixed, fully mixed
Alkali-resistant glass fibre mesh grid is immersed in the mixture of epoxy resin and curing agent after conjunction, or mixture is brushed to fiber
The surface of mesh grid；
Step 2: concrete batching is stirred, chopped strand is added in whipping process；
Step 3: the alkali-resistant glass fibre mesh grid that step one is prepared is placed in template, configured in step 2 mixed is poured
Solidifying soil paste liquid, is stripped maintenance after hardening.
2. nanometer according to claim 1 strengthens the preparation method of TRC composites, it is characterised in that：The step one
Epoxy resin is mixed by 2.2 with curing agent:1 to 2.8:1 ratio mixing.
3. nanometer according to claim 1 strengthens the preparation method of TRC composites, it is characterised in that：The step one
In nanometer reinforcer be nanometer silicon ash, the amount of participating in of nanometer silicon ash is more than 0.15%.
4. nanometer according to claim 1 strengthens the preparation method of TRC composites, it is characterised in that：The step 2
Middle concrete batching：Portland cement PC325 470kg/m3, second class powered coal ash 236kg/m3, 0.11-0.16 μm of average grain diameter
Miberal powder 38kg/m3, Sika three generations modeling agent 3.2kg/m3, particle diameter 0-1.2mm normal sand 1380kg/m3, running water 168kg/
m3。
5. nanometer according to claim 1 strengthens the preparation method of TRC composites, it is characterised in that：The step 2
The chopped strand of middle addition includes steel fibre and glass fibre.
6. nanometer according to claim 5 strengthens the preparation method of TRC composites, it is characterised in that：The steel fibre
Length be 6mm.
7. nanometer according to claim 5 strengthens the preparation method of TRC composites, it is characterised in that：The glass fibers
The length of dimension is 12mm.
8. nanometer according to claim 1 strengthens the preparation method of TRC composites, it is characterised in that：The multilayer is resistance to
The interlamellar spacing of alkali containing glass fibre is in more than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620146.XA CN107311571A (en) | 2017-07-26 | 2017-07-26 | The preparation method of nanometer enhancing TRC composites |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620146.XA CN107311571A (en) | 2017-07-26 | 2017-07-26 | The preparation method of nanometer enhancing TRC composites |
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| Publication Number | Publication Date |
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| CN107311571A true CN107311571A (en) | 2017-11-03 |
Family
ID=60174941
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710620146.XA Pending CN107311571A (en) | 2017-07-26 | 2017-07-26 | The preparation method of nanometer enhancing TRC composites |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532981A (en) * | 2018-05-07 | 2018-09-14 | 中国矿业大学 | A kind of reinforcement means for the TRC improving leafy brick masonry wall anti-seismic performance |
| CN109133799A (en) * | 2018-09-27 | 2019-01-04 | 武汉普卫思建材科技有限公司 | A kind of preparation method of shadow image concrete-containing building material |
| CN114907077A (en) * | 2022-06-07 | 2022-08-16 | 浙江建设职业技术学院 | Fiber woven mesh reinforced nanometer cement-based composite material and preparation method thereof |
| CN115534431A (en) * | 2022-10-11 | 2022-12-30 | 天津工业大学 | Continuous fabric reinforced mortar composite material and preparation method thereof |
-
2017
- 2017-07-26 CN CN201710620146.XA patent/CN107311571A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532981A (en) * | 2018-05-07 | 2018-09-14 | 中国矿业大学 | A kind of reinforcement means for the TRC improving leafy brick masonry wall anti-seismic performance |
| WO2019214187A1 (en) * | 2018-05-07 | 2019-11-14 | 中国矿业大学 | Trc reinforcement method for improving anti-earthquake performance of multi-piece brick masonry wall |
| CN109133799A (en) * | 2018-09-27 | 2019-01-04 | 武汉普卫思建材科技有限公司 | A kind of preparation method of shadow image concrete-containing building material |
| CN114907077A (en) * | 2022-06-07 | 2022-08-16 | 浙江建设职业技术学院 | Fiber woven mesh reinforced nanometer cement-based composite material and preparation method thereof |
| CN115534431A (en) * | 2022-10-11 | 2022-12-30 | 天津工业大学 | Continuous fabric reinforced mortar composite material and preparation method thereof |
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Application publication date: 20171103 |