CN108395146A - A kind of fire-retardant concrete - Google Patents
A kind of fire-retardant concrete Download PDFInfo
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- CN108395146A CN108395146A CN201810271328.5A CN201810271328A CN108395146A CN 108395146 A CN108395146 A CN 108395146A CN 201810271328 A CN201810271328 A CN 201810271328A CN 108395146 A CN108395146 A CN 108395146A
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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
- C04B26/14—Polyepoxides
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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
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Fireproofing Substances (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Abstract
It includes following components that the present invention, which discloses a kind of fire-retardant concrete,：Epoxy resin, curing agent, glass particle, fire retardant；Wherein, the fire retardant is prepared by hexafluoropropene, titanate esters.The fire retardant that the present invention uses can greatly improve the anti-flammability of concrete, moreover it is possible to concrete surface be made to have excellent water-proof and oil-proof performances；The titanate esters can also play the role of coupling agent and dispersant during preparing the concrete, simplify preparation process；Glass particle is obtained using water quenching to can be used without secondary operation, is reduced pollution, is improved working efficiency；By controlling the grading of the glass particle, effectively enhance the intensity of concrete, without adding fibrous material.
Description
Technical field
The invention belongs to civil engineering materials field more particularly to a kind of fire-retardant concrete.
Background technology
Bearing-type road surface is converted into electric energy by collecting solar energy, is widely studied in recent years, road surface most last layer is class
Like the transparent concrete of frosted glass, sunlight can be made, which to pass through, makes following solar cell convert optical energy into electric energy.At present
Domestic transparent concrete prepares that there are mainly three types of forms, one is using outside prefabricated resin block joints cement mortar prepare it is saturating
Bright concrete；The second is joints cement or bituminous concrete prepare light guide concrete around fixed optical fiber；The third is setting
Fat forms as cementitious matter and aggregate blending with cement mixing mix and prepares translucent concrete.It is prepared using above method mixed
Solidifying soil light transmittance is by larger limitation, to improve the performance of transparent concrete, has numerous studies team and is studied, such as：
Chinese CN106242381A patents disclose a kind of flame-resistant high-temperature-resistant concrete and preparation method thereof.It is described fire-retardant
Refractory concrete in parts by weight, is made of following component：30~40 parts of cement, 12~30 parts of grog, water 18~30
Part, 8~15 parts of magnesia, 2~3 parts of water-reducing agent, 5~10 parts of aluminium oxide, 1~2 part of modifying agent, 1~2 part of graphene, fire retardant 1~
2 parts, 0.1~0.4 part of hexenyl bis-stearamides, 0.05~0.3 part of polyethylene glycol.The invention fire retardant is by brominated
The mixture of oxygen resin, magnalium hydrotalcite and decabromodiphenylethane composition, has certain flame retardant property, but cannot make concrete
Have the excellent properties of waterproof and oilproof.
Chinese CN106592374A patents provide a kind of solar energy power generating road surface and its application, the solar energy
Volt power generation pavement includes at least to be set gradually from bottom to up：Roadbed, base, face layer, solar energy power generating layer and light transmission are anti-
Sliding wearing course.The light transmission antiskid wearing layer is using non-light tight concrete or/and the epoxy resin system of 0.5-5 mm of thickness light transmissions
At the non-light tight concrete prepares raw material and includes at least following parts by weight of component：2~12 parts of epoxy resin, glass particle 84~
97.4 parts and 0.6~4 part of curing agent, the epoxy resin, glass particle and curing agent all light-permeables, it is preferable that described
Epoxy resin, glass particle and curing agent are all water white transparencies.The glass particle that the invention uses is tempered glass or tree
Fat glass, cost is higher, and preparation process will produce larger pollution, and be prepared using the glass particle of single particle size
Photovoltaic road surface compression strength and flexural strength are poor, and service life is shorter.
The research of electric energy is converted by road surface collection solar energy at present and there are more problems on, such as：It applies
Transparent concrete on road surface is higher to fire-retardant performance requirement, in transparent concrete the more fire retardant noninflammability used and
Heat resistance is relatively low, and road surface cannot be made to have the otherwise performance such as waterproof and oilproof；In the preparation process of transparent concrete
In can add a large amount of glass particle, larger pollution is will produce in the preparation process of glass particle；To increase photovoltaic road surface
Intensity often adds fiber and glass particle during preparing concrete, but the addition of fiber increases transparent concrete intensity
Add translucency smaller, and that transparent concrete can be influenced.Therefore, it is badly in need of a kind of fire-retardant concrete of design to solve the above problems.
Invention content
In response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of fire-retardant concrete, using the hexafluoro
Fire retardant is prepared in ethylene and titanate esters, can greatly improve the anti-flammability of concrete, moreover it is possible to so that concrete surface is had excellent
Different water-proof and oil-proof performances；The titanate esters can also play coupling agent and dispersant during preparing the concrete
Effect simplifies preparation process.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of fire-retardant concrete, including following components in percentage by weight：
Wherein, the fire retardant is hexafluoropropene, titanate esters in mass ratio 1:1-3 is prepared.
The present invention is using hexafluoropropene, titanate esters in mass ratio 1:1-3 prepares the fire retardant, and the hexafluoropropene is made
For in epoxy resin, one side C-F bond energys to be very big so that the heat resistance of epoxy resin is improved, on the other hand in height
Intermolecular rearrangement can be increased under warm environment, the carbon-coating of high stability occur in epoxy resin surface deposition, play protection asphalt mixtures modified by epoxy resin
The effect of fat internal crosslinking net.The hexafluoropropene is combined with titanate esters can release a large amount of fluoroform in the epoxy
Base, the trifluoromethyl of large volume act in epoxy resin the movement that can further prevent epoxy molecule segment, enhance ring
The stability of oxygen resin, while trifluoromethyl can be enriched in epoxy resin surface, and the concrete is made to have excellent waterproof, prevent
Oiliness energy；Titanium is a kind of effective ignition-proof element, can effectively reduce the rate of flame propagation, the present invention is using hexafluoropropene, titanium
Acid esters prepares the fire retardant, and the titanate esters can not only further enhance anti-oxidant, the flame retardant property of the fire retardant, also
It can play the role of crosslinking agent and dispersant in preparation process, reduce the kind of concrete raw material in preparation process
Class simplifies preparation process.
The curing agent is one kind or group in polyamide, aliphatic cyclic amine or fatty amine transparent liquid epoxy curing agent
It closes.
Preferably, a kind of fire-retardant concrete includes following components in percentage by weight：
Wherein, the fire retardant is hexafluoropropene, titanate esters in mass ratio 1:2 are prepared.
The concrete is prepared using the above weight percent, can make the concrete that there is good anti-flammability and prevent
Water oil preventing performance；And the fire retardant can also play the work of coupling agent and dispersant during preparing the concrete
With reduction raw material simplify preparation process.
Preferably, the preparation method of the fire retardant is：The hexafluoropropene is placed in high speed heat to mix in machine, in high-speed stirring
Mix it is lower be added the titanate esters, high-speed stirred 10-30min at 100-150 DEG C obtains hexafluoroethylene-metatitanic acid ester complexes.More than
Mode is the preparation method of the preferably described fire retardant of the present invention, and what is be prepared by the way of commonly mixing is described fire-retardant
Agent equally has preferable flame retardant property.
Preferably, the titanate esters are Monoalkoxy-titanates.The general structure of the monoalkoxy type titanate esters is:
RO-Ti(OX-R-Y)3, the hexafluoropropene and the titanate esters is compound, by the selection of OX-, the hexafluoro second can be made
Alkene-metatitanic acid ester complexes have both coupling and fire-retardant excellent properties；R- is long carbon bond alkyl, can be bent with organic group
It tangles, during preparing the concrete, makes each raw material that there is preferable compatibility, to improve the anti-of the concrete
Impact strength；Y is hydroxyl, amino, epoxy group or double bond containing group etc., these groups are distributed in the hexafluoroethylene-metatitanic acid
The end of ester complexes can make organic matter be chemically reacted and be combined together, and further increase the close of the concrete
Reality reduces the dosage of epoxy resin, improves the processing performance of the concrete.
Preferably, the glass particle is water quenching glass particle.
The water quenching glass particle is to be smashed the bath of glass flowed out out of melting furnaces using the flow of certain pressure, is formed broken
Small glass particle, therefore, water quenching glass particle do not have to secondary operation and can be used, and not only simplify preparation process, improve labor
Efficiency of movement reduces cost, and avoids glass and carry out pollution to environment when secondary operation.
The grading of the glass particle is：
The glass particle is added in the preparation process of the fire-retardant concrete according to the above grading mode, grain size is smaller
The glass particle be filled in the larger glass particle of grain size, the pressure-proof and snap-resistent for greatly improving fire-retardant concrete is strong
Degree, keeps the porosity of the glass particle and the gross area smaller, reaches and saves epoxy resin and the raising concrete strength
Purpose.
The epoxy resin is aminoepoxy resins, glycidyl ester type epoxy resin by weight 1:0.8-1.5 is mixed
It forms.
The viscosity of the aminoepoxy resins is higher, and the viscosity of the glycidyl ester type epoxy resin is relatively low, will be described
Aminoepoxy resins, glycidyl ester type epoxy resin are mixed in a certain ratio, and can obtain the epoxy of viscosity needed for the present invention
Resin；Meanwhile transparency is higher after the condensation of the aminoepoxy resins, glycidyl ester type epoxy resin, can ensure described
The translucency of concrete.
A kind of preparation method of fire-retardant concrete, comprises the steps of：
(1) glass particle is placed in plasma etching machine, using ion etching method to the glass particle surface
It is handled, obtains the shaggy glass particle；
(2) all material is weighed in proportion, and the epoxy resin weighed, fire retardant, curing agent are placed in spice pot,
It is heated to 120-160 DEG C, makes the epoxy resin and fire retardant be completely dissolved to form clear solution, obtains resin sizing material；
(3) the shaggy glass particle by grain size more than or equal to 40mm is put into the resin glue after mixing
10-30min is stirred in material, is uniformly mixed and resin glue mortar is made；
(4) the shaggy glass particle by grain size less than 40mm is mixed in the resin mortar, stirs 30-
60min obtains transparent concrete；
(5) transparent concrete is imported into compaction die, is placed at room temperature for curing molding, up to fire-retardant concrete after demoulding
Test specimen.
The principle of the ion etching method is：Ar in plasma etching machine+Accelerated under the action of ion is robbed,
Acceleration can be 1000-105EV, working beam 1-300uA, the Ar after acceleration+The glass particle surface is sputtered at, is led to
Control etching speed and etch period are crossed, makes some tissue etching removals on the glass particle surface, obtains shaggy
The glass particle.Ar+Glass particle surface described in ion bombardment, making the glass particle, surface is thicker on a microscopic level
It is rough, but the light transmittance of the glass particle is not influenced.
The present invention, by the glass particle surface roughening, can make institute during preparing the fire-retardant concrete
State even closer when glass particle is bonded with the epoxy resin, the fire-retardant concrete being prepared is during long-time service
The case where being less prone to crack or fracture；First by the larger glass of grain size during preparing the fire-retardant concrete
Grain is added in the resin sizing material and is uniformly mixed, then the smaller glass particle of grain size is mixed in the resin mortar, makes
The smaller glass particle of grain size is filled in the larger glass particle of grain size, and the concrete structure is made more to encrypt
Real, intensity bigger.
The glass particle is put into temperature >=20 DEG C in the resin mortar.
The temperature when glass particle is added is controlled in preparation process, can make the glass particle preferably and institute
Epoxy resin combination is stated, while crack and fracture etc. are led to the problem of after preventing the concrete coagulation.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention prepares fire retardant using the hexafluoroethylene and titanate esters, not only has high temperature resistant, flame retardant property,
It can also make the fire-retardant concrete surface being prepared that there are excellent water-proof and oil-proof performances；
(2) fire retardant of the present invention can also play the work of coupling agent and dispersant in the preparation process of the concrete
With the special construction of the hexafluoroethylene-metatitanic acid ester complexes can make each raw material have preferable compatibility, improve described mixed
Coagulate the impact strength of soil；Promote machine object to be chemically reacted and be combined together simultaneously, improve the density of the concrete,
The dosage for reducing epoxy resin, improves the processing performance of the concrete；
(3) glass particle, grain size is added according to specific grading mode in the present invention in the preparation process of concrete
The smaller glass particle is filled in the larger glass particle of grain size, can make the porosity of the glass particle and total
Area is smaller, can achieve the purpose that save epoxy resin and improve the concrete strength；
(4) glass particle of the present invention is water quenching glass particle, does not have to secondary operation and can be used, not only simplifies system
Pollution when for technique, improving labor efficiency, reduce cost, and avoiding glass progress secondary operation to environment；
(5) present invention controls the addition temperature of the glass particle during preparing the concrete, can be effective
The raising glass particle and epoxy resin workability, generate the side such as crack and fracture after avoiding the concrete coagulation
The problem of face.
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described below, it is clear that described embodiment is only
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The all other embodiment obtained under the conditions of not making creative work, shall fall within the protection scope of the present invention.
Embodiment 1
The present embodiment provides a kind of fire-retardant concrete, including following components in percentage by weight：
Wherein, the fire retardant is hexafluoropropene, titanate esters in mass ratio 1:2 are prepared；The curing agent is fat
Amine transparent liquid epoxy curing agent.
The preparation method of the fire retardant is：The hexafluoropropene is placed in high speed heat to mix in machine, is added under high velocity agitation
Enter the titanate esters, high-speed stirred 20min at 120 DEG C obtains hexafluoroethylene-metatitanic acid ester complexes.
The titanate esters are Monoalkoxy-titanates.
The grading of the glass particle is：
The preparation method of fire-retardant concrete, comprises the steps of described in the present embodiment：
(1) glass particle is placed in plasma etching machine, using ion etching method to the glass particle surface
It is handled, obtains the shaggy glass particle；
(2) all material is weighed in proportion, and the epoxy resin weighed, fire retardant, curing agent are placed in spice pot,
It is heated to 120-160 DEG C, makes the epoxy resin and fire retardant be completely dissolved to form clear solution, obtains resin sizing material；
(3) the shaggy glass particle by grain size more than or equal to 40mm is put into the resin glue after mixing
10-30min is stirred in material, is uniformly mixed and resin glue mortar is made；
(4) the shaggy glass particle by grain size less than 40mm is mixed in the resin mortar, stirs 30-
60min obtains transparent concrete；
(5) transparent concrete is imported into compaction die, is placed at room temperature for curing molding, up to fire-retardant concrete after demoulding
Test specimen.
The ion of the ion etching machine sputtering is Ar+, the acceleration that intermediate ion is robbed can be 104-105EV, working beam are
200-300uA, injecting time 2-3h.
According to GB/T50081-2002《Normal concrete mechanical property tests method standard》It carries out test compression strength, resist
Roll over intensity, compression strength test be 100mm × 100mm × 100mm cubes, flexural strength test specimen be 100mm × 100mm ×
400mm prisms；Its vertical combustion grade is tested according to GB/T2408-2008 methods；It is dark in opening using solar energy tester
Light transmittance test is carried out in case：Light transmittance=(irradiation level-opening when irradiation level-placement test specimen when not placing test specimen is complete
The irradiation level of masking)/irradiation level when not placing test specimen；The method for measuring water absorption rate and oil absorbency：Test test specimen is 100mm
Test specimen is first cleaned, is dry, weighed, then test specimen is put into container by × 100mm × 100mm cubes, is flooded to examination with water/oil
Part a quarter height impregnates 2h, adds water/oil to flood to the height of test specimen half, impregnates 2h, water/oil is added to flood to test specimen four
2h is impregnated in/tri- positions, add water/oily until test specimen floods completely, immersion for 24 hours, takes out, dries, weighs, water suction/oil suction
The weight of rate=(weight of weight-drying after immersion) * 100%/drying.
Test result 28d compression strength as shown in table 1 and flexural strength are respectively 23.8MPa, 144.8MPa, and light transmittance is
40.0% vertical combustion grade is 5V, water absorption rate 2%, oil absorbency 3%.
It can be obtained by experimental result, the fire-retardant concrete obtained under the optimal preparation condition of the present invention has higher
Pressure-proof and snap-resistent intensity and excellent light transmission and flame retardant property.
Embodiment 2
The present embodiment provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire retardant is six
Fluoropropene, titanate esters in mass ratio 1:1 is prepared.
The fire-retardant concrete is prepared using the preparation method of embodiment 1, and is examined using the detection method of embodiment 1
It surveys, test result is as shown in table 1, and 28d compression strength and flexural strength are respectively 22.2MPa, 141.2MPa, and light transmittance is
37.5% vertical combustion grade is 5V, water absorption rate 2%, oil absorbency 3%.
Embodiment 3
The present embodiment provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire retardant is six
Fluoropropene, titanate esters in mass ratio 1:3 are prepared.
The fire-retardant concrete is prepared using the preparation method of embodiment 1, and is examined using the detection method of embodiment 1
It surveys, test result is as shown in table 1, and 28d compression strength and flexural strength are respectively 23.5MPa, 143.9MPa, and light transmittance is
40.0% vertical combustion grade is 5V, water absorption rate 2%, oil absorbency 3%.
Embodiment 4
The present embodiment provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire retardant is six
Fluoropropene, titanate esters in mass ratio 1:2 are prepared by way of commonly mixing.
The fire-retardant concrete is prepared using the preparation method of embodiment 1, and is examined using the detection method of embodiment 1
It surveys, test result is as shown in table 1, and 28d compression strength and flexural strength are respectively 23.4MPa, 144.2MPa, and light transmittance is
40.0% vertical combustion grade is V0, water absorption rate 2%, oil absorbency 4%.
It can be obtained by experimental result, the hexafluoropropene, titanate esters are prepared described fire-retardant by the way of being simply mixed
Agent, the fire-retardant concrete being prepared still have excellent anti-flammability, and to the fire-retardant concrete 28d pressure resistances
Degree, flexural strength and light transmittance are without influence.
Embodiment 5
The present embodiment provides a kind of fire-retardant concrete and preparation method thereof, compared with Example 1, the difference is that, institute
In the preparation method for stating fire-retardant concrete, surface roughening treatment is not carried out to the glass particle, fire-retardant concrete is made.
Test result 28d compression strength as shown in table 1 and flexural strength are respectively 21.5MPa, 139.8MPa, and light transmittance is
40.0% vertical combustion grade is 5V, water absorption rate 2%, oil absorbency 3%.
It can be obtained by experimental result, surface roughening treatment not carried out to prepared fire-retardant mixed to the glass particle
The light transmission and flame retardant property for coagulating soil are slightly reduced without influence, 28d compression strength and flexural strength, but remain to meet construction requirement.
Embodiment 6
The present embodiment provides a kind of fire-retardant concrete, compared with Example 1, the difference is that,
The particle size range of the glass particle is：40-80mm
The preparation method of fire-retardant concrete, comprises the steps of described in the present embodiment：
(1) glass particle is placed in plasma etching machine, using ion etching method to the glass particle surface
It is handled, obtains the shaggy glass particle；
(2) all material is weighed in proportion, and the epoxy resin weighed, fire retardant, curing agent are placed in spice pot,
140 DEG C are heated to, makes the epoxy resin and fire retardant be completely dissolved to form clear solution, obtains resin sizing material；
(3) glass particle is put into after mixing in the resin sizing material and stirs 50min, be uniformly mixed and tree is made
Fat glue mortar；
(4) the resin glue mortar is imported into compaction die, is placed at room temperature for curing molding, up to fire-retardant concrete after demoulding
Test specimen.
It is detected using the detection method of embodiment 1, test result is as shown in table 1,28d compression strength and flexural strength
Respectively 20.5MPa, 138.5MPa, it is 5V that light transmittance, which is 40.0% vertical combustion grade, water absorption rate 2%, and oil absorbency is
3%.
Can be obtained by test result, using the glass particle of single grading so that the fire-retardant concrete it is close
Solidity reduces, and so that 28d compression strength and flexural strength is declined slightly, but remain to the requirement of contentedly surface construction, still has excellent
Different translucency and higher vertical combustion grade.
Comparative example 1
This comparative example provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire retardant is single
Solely use hexafluoropropene.
The fire-retardant concrete is prepared using the preparation method of embodiment 1, and is examined using the detection method of embodiment 1
It surveys, test result is as shown in table 1, and 28d compression strength and flexural strength are respectively 17.2MPa, 109.9MPa, and light transmittance is
39.0% vertical combustion grade is V1, water absorption rate 2%, oil absorbency 3%.
It can be obtained by test result, individually the vertical combustion grade using hexafluoropropene as fire retardant is far below and institute
Vertical combustion grade when hexafluoropropene, titanate esters collective effect is stated, and the hexafluoropropene is used alone and is preparing the resistance
It cannot play the role of coupling agent and dispersant during combustion concrete, the connectivity between each raw material is poor, leads to 28d resistance to compressions
Intensity and flexural strength decline.
Comparative example 2
This comparative example provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire retardant is bromine
Change epoxy resin.
The fire-retardant concrete is prepared using the preparation method of embodiment 1, and is examined using the detection method of embodiment 1
It surveys, test result is as shown in table 1, and 28d compression strength and flexural strength are respectively 19.8MPa, 115.6MPa, and light transmittance is
40.0% vertical combustion grade is V1, water absorption rate 8%, oil absorbency 10%.
It can be obtained by test result, individually the vertical combustion grade using brominated epoxy resin as fire retardant declines,
Concrete surface has the function of waterproof and oilproof；Since brominated epoxy resin cannot play coupling during preparing concrete
The effect of agent and dispersant causes 28d compression strength and flexural strength to decline.
Comparative example 3
This comparative example provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, include glass in component
The weight percent of fiber, each component is：
The particle size range of the glass particle is 40-80mm.
It is detected using the detection method of embodiment 1, test result is as shown in table 1,28d compression strength and flexural strength
Respectively 21.8MPa, 139.6MPa, it is 5V that light transmittance, which is 20.0% vertical combustion grade, water absorption rate 2%, and oil absorbency is
3%.
It can be obtained, be prepared using the glass particle and the fibrous material of single particle size described fire-retardant mixed by test result
Solidifying soil, pressure-proof and snap-resistent intensity increases unobvious compared with Example 6, and is affected to light transmittance.
Comparative example 4
This comparative example provides a kind of fire-retardant concrete, compared with Example 1, the difference is that, the fire-retardant concrete
Preparation method in, rough surface is carried out to the glass particle in such a way that diamond dust and the glass particle are mixed
Change is handled, and the fire-retardant concrete is prepared.
It is detected using the detection method of embodiment 1, test result is as shown in table 1,28d compression strength and flexural strength
Respectively 22.9MPa, 142.9MPa, it is 5V that light transmittance, which is 20.0% vertical combustion grade, water absorption rate 2%, and oil absorbency is
3%.
It can be obtained, be prepared using the glass particle and the fibrous material of single particle size described fire-retardant mixed by experimental result
Solidifying soil, pressure-proof and snap-resistent intensity is less than fire-retardant concrete prepared by embodiment 1, and is affected to light transmittance.
Test result
According to GB/T50081-2002《Normal concrete mechanical property tests method standard》It carries out test compression strength, resist
Roll over intensity, compression strength test be 100mm × 100mm × 100mm cubes, flexural strength test specimen be 100mm × 100mm ×
400mm prisms；Its vertical combustion grade is tested according to GB/T2408-2008 methods；It is dark in opening using solar energy tester
Light transmittance test is carried out in case：Light transmittance=(irradiation level-opening when irradiation level-placement test specimen when not placing test specimen is complete
The irradiation level of masking)/irradiation level when not placing test specimen；Measure water absorption rate and oil absorbency method：Test test specimen be 100mm ×
Test specimen is first cleaned, is dry, weighed, then test specimen is put into container by 100mm × 100mm cubes, is flooded to test specimen with water/oil
A quarter height impregnates 2h, adds water/oil to flood to the height of test specimen half, impregnates 2h, add water/oil to flood to test specimen four and divide
Three positions, impregnate 2h, add water/oil until test specimen floods completely, impregnate for 24 hours, take out, dry, weigh, water suction/oil absorbency
The weight of=(weight of weight-drying after immersion) * 100%/drying.
1 fire-retardant concrete test result of table
Above-described embodiment is to change each parameter in range of the present invention the fire-retardant concrete, embodiment is prepared
1 best performance；Embodiment 2 and embodiment 3 change the hexafluoropropene, the mass ratio of titanate esters prepares the fire retardant, prepare
The obtained fire-retardant concrete has higher vertical combustion grade；Embodiment 4 is prepared described by the way of commonly mixing
Fire retardant, the fire-retardant concrete being prepared equally have higher vertical combustion grade；Embodiment 5 and embodiment 6 change
The processing mode for becoming the glass particle, on the translucency of the fire-retardant concrete and flame retardant property without influence, 28d compression strength
It is declined slightly with flexural strength, but remains to the construction requirement for meeting road surface, preparation can be made using fire retardant of the present invention
Fire-retardant concrete has excellent waterproof and oilproof performance.
Comparative example 1 of the present invention individually uses the hexafluoropropene as the fire retardant, the resistance to the fire-retardant concrete
Combustion performance is affected, and cannot be satisfied requirement of the highway to flame retardant property；Comparative example 2 is using brominated epoxy resin as fire retardant
Preparing, concrete water-proof oil preventing performance is poor；Comparative example 3 is prepared using the glass particle and fibrous material of single grading
The fire-retardant concrete, the fibrous material contribute unobvious to the compression strength and flexural strength of the fire-retardant concrete, and
It is affected to light transmittance, cannot be satisfied the job requirement of photovoltaic highway；Comparative example 4 is using diamond to the glass particle table
It is bright to be roughened, seriously affect the translucency of the fire-retardant concrete.
In conclusion the fire-retardant concrete being prepared within the scope of the present invention have excellent fire-retardant, light transmission with
And pressure-proof and snap-resistent performance, it is fully able to meet the job requirement of photovoltaic highway.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of fire-retardant concrete, which is characterized in that including following components in percentage by weight：
Wherein, the fire retardant is hexafluoropropene, titanate esters in mass ratio 1:1-3 is prepared.
2. a kind of fire-retardant concrete as described in claim 1, which is characterized in that include following components in percentage by weight：
Wherein, the fire retardant is hexafluoropropene, titanate esters in mass ratio 1:2 are prepared.
3. a kind of fire-retardant concrete as described in claim 1, which is characterized in that the preparation method of the fire retardant is：By institute
It states hexafluoropropene and is placed in high speed heat and mix in machine, be added the titanate esters under high velocity agitation, high-speed stirred 10- at 100-150 DEG C
30min obtains hexafluoroethylene-metatitanic acid ester complexes.
4. a kind of fire-retardant concrete as described in claim 1, which is characterized in that the titanate esters are Monoalkoxy-titanates.
5. a kind of fire-retardant concrete as described in claim 1, which is characterized in that the glass particle is water quenching glass particle.
6. a kind of fire-retardant concrete as described in claim 1, which is characterized in that the grading of the glass particle is：
7. a kind of fire-retardant concrete as described in claim 1, which is characterized in that the epoxy resin be aminoepoxy resins,
Glycidyl ester type epoxy resin is by weight 1:0.8-1.5 is mixed.
8. the preparation method of the fire-retardant concrete of claim 1-7 any one, which is characterized in that comprise the steps of：
(1) glass particle is placed in plasma etching machine, the glass particle surface is carried out using ion etching method
Processing, obtains the shaggy glass particle；
(2) all material is weighed in proportion, the epoxy resin weighed, fire retardant, curing agent are placed in spice pot, is heated
To 120-160 DEG C, makes the epoxy resin and fire retardant be completely dissolved to form clear solution, obtain resin sizing material；
(3) the shaggy glass particle by grain size more than or equal to 40mm is put into after mixing in the resin sizing material
10-30min is stirred, is uniformly mixed and resin glue mortar is made；
(4) the shaggy glass particle by grain size less than 40mm is mixed in the resin mortar, stirs 30-60min,
Obtain transparent concrete；
(5) transparent concrete is imported into compaction die, is placed at room temperature for curing molding, tried up to fire-retardant concrete after demoulding
Part.
9. a kind of preparation method of fire-retardant concrete as claimed in claim 8, which is characterized in that the glass particle is put into
Temperature >=20 DEG C in the resin mortar.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503027A (en) * | 2018-10-22 | 2019-03-22 | 东莞理工学院 | A kind of anti-flaming transparent concrete |
-
2018
- 2018-03-29 CN CN201810271328.5A patent/CN108395146A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 常雁红著: "《有机化学》", 30 September 2016, 北京：冶金工业出版社 * |
| 欧育湘: "《阻燃剂——制造、性能及应用》", 30 June 1997, 兵器工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109503027A (en) * | 2018-10-22 | 2019-03-22 | 东莞理工学院 | A kind of anti-flaming transparent concrete |
| CN113173734A (en) * | 2018-10-22 | 2021-07-27 | 东莞理工学院 | Flame-retardant transparent concrete |
| CN109503027B (en) * | 2018-10-22 | 2022-01-11 | 湖南兆健建材有限公司 | Flame-retardant transparent concrete |
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Application publication date: 20180814 |