CN101857399A - Rubber reinforced cement functional composite material and preparation method thereof - Google Patents
Rubber reinforced cement functional composite material and preparation method thereof Download PDFInfo
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- CN101857399A CN101857399A CN200910142982A CN200910142982A CN101857399A CN 101857399 A CN101857399 A CN 101857399A CN 200910142982 A CN200910142982 A CN 200910142982A CN 200910142982 A CN200910142982 A CN 200910142982A CN 101857399 A CN101857399 A CN 101857399A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a rubber reinforced cement functional composite material and a preparation method thereof. The rubber reinforced cement functional composite material is prepared from waste rubber and cement or cement mortars by the following steps of: applying coupling adhesives to surfaces of waste rubber grains and/or powder by using coupling agents; mixing the waste rubber grains and/or powder with the cement or the cement mortars; adding water into the rubber-cement mixed materials for uniform stirring, and performing pavement, pressing, demoulding and maintaining to obtain the functional composite material product having a high mechanical strength and endurance. The composite material has the characteristics of noise reduction, sound isolation, high impact resistance, damping vibration attenuation, wear resistance, static resistance, water resistance and the like, has the advantages of insulation, environmental protection and the like and can be used in the field of functional materials, such as buildings, roads, railways, tunnels, noise barriers and the like. The functional composite material and the method thereof also provide a new way for solving the global problem of 'black pollution' of increasing waste tyres and have a wide application prospect.
Description
Technical field
The present invention relates to a kind of New Building Materials, belong to the cement-base composite material field, be specifically related to a kind ofly to can be used for building, the rubber reinforced cement functional composite material in functional material fields such as highway, railway, tunnel, acoustic barrier and preparation method thereof.
Background technology
China is Cement industry big country, and Cement industry has critical role as one of pillar of the main basic material industry of China in national economy sustainable development.Along with the enhancing of science and technology development and people's environmental consciousness, sustainable development of cement industry more and more obtains paying attention to.Modern architecture, field such as highway, railway has proposed new challenge to cement-base composite material, require cement-base composite material not only to want load-bearing, also should have functions such as sound, light, electricity, magnetic, heat, to adapt to the needs of multifunctional material, therefore, other material and cementitious composite are prepared the new function composite study and exploitation has become focus.
At present, countries in the world all are faced with the problem of environmental pollution that is caused from industrial waste and daily life rubbish etc.Along with the fast development of automotive industry, utilizing again of increasing junked tire become the international key subjects of very paying close attention to.Waste rubber belongs to thermoset copolymer material, is a kind of macromolecular material of degrading of being difficult under field conditions (factors).It is water insoluble, is insoluble in organic solvent, is difficult to degraded, is called as " black pollution ", and it reclaims and treatment technology is a global problem always, also is related to the difficult problem of global environmental protection and resource reutilization.The whole world has 1,500,000,000 tires to scrap every year, and China's annual report damaged tire is more than 1.7 hundred million.China is consumption of rubber second big country in the world, and about 45% of annual rubber-consumer amount needs import.And on the other hand, have every year nearly 1,000,000 tons of waste rubbers to can not get reasonable utilization approximately.Day by day reduce relative today in short supply at natural resources, how to use that modern means of science and technology solve the utilization again of waste tire and " black pollution " problem seems particularly urgent in China with the energy.
In recent years, many countries such as the U.S., Japan and Europe are in rubber powder, rubber and cement and concrete blending study and application, and with resin and the aspect such as use to have carried out a large amount of work, and obtained good effect.Rubber powder, rubber grain both can be used to pave the way after cement concrete, pitch mix, finishing, shockproof, sealing and waterproof roll, can also be used to modified plastics, improve the soil.Fine glue powder also can be used for coating, paint and tackiness agent modification.Simultaneously, China is also developing the application of rubber powder/particle in others such as highway, railway, material of construction energetically, but at present domestic rubber fine aggregate sand-cement slurry and concrete research also is in the starting stage, and obtained achievement is more limited.
Rubber concrete research starts from phase late 1980s, the paper of delivering the earliest sees phase early 1990s, rubber powder/particle is incorporated in the concrete, rubber particle can become the structural distortion center that absorbs strain energy, the absorbing vibration energy, thereby obviously improve concrete shock resistance, improve concrete anti-seismic performance, improve its anti-contracility energy, improve toughness and anti-freezing property.Fundamentally improve the strong noise of concrete road surface, the shortcoming of high vibrations, increase the road surface flexibility, bring new vitality to the concrete road surface.The concrete output of China has surpassed 15 billion cubic meters, in theory by every cube of concrete need only admixture rubber powder/particle of 0.8 kilogram, just can digest to fall to have now does not have reclaiming to utilize waste tire rubber.Therefore, greatly inspired experts and scholars that the performance of using scrap tire rubber in the concrete and showed is carried out more deep research.The rubber reinforced cement based composites is very bright in the application prospect in future, expection can be widely used in following field: railroad sleeper, road engineering, high antidetonation regional architecture, require the high place of vibration damping, as foundation works and railway station etc., shelves and acoustic barrier etc. are enclosed as motorway in the position of shock resistance and explosion-proof, building and ornament materials are from levelling filler etc.
Yet, rubber is filled in the sand-cement slurry as organic polymer material, because differing greatly between the performances such as the surface elastic modulus of organic polymer rubber and inorganic cement, cement concrete material, heat-conduction coefficient, mass density, damping shock absorption coefficient, it is fragile combining with the interface of mortar matrix, cause existing rubber concrete matrix material to exist mechanical strength lower, shortcomings such as resistance of aging deficiency.
Summary of the invention
The invention provides can be used for that a kind of mechanical property is higher, resistance of aging is stronger build, the high-performance rubber refinforced cement functional composite material in functional material field such as highway, railway, tunnel, acoustic barrier.
For solving the problems of the technologies described above, the present invention takes following technical scheme: a kind of rubber reinforced cement functional composite material, be to be starting material with waste old and cement or sand-cement slurry, adopt coupling agent that the coupling tackiness agent is put on waste and old rubber particle and/or powder surface, again with waste and old rubber particle and/or powder and cement or sand-cement slurry blend, then water is added in rubber-cement additive and stirs, through mat formation, compacting, the demoulding, maintenance prepare that mechanical strength is higher, endurance quality functional composite material product preferably.
In the above-mentioned matrix material, described waste old comprises waste tire rubber and waste rubber goods.
The selection ordinary Portland cement 42.5 or 52.4 of described cement, R type silicate cement 42.5 or 52.4 etc.
Described coupling agent can be polymeric polyisocyanate and adds and rub chain agent, epoxy resin reinforcing agent and toughner or phenol-modified Resorcinol adds solidifying agent; It is described that to rub the chain agent be polyalcohol polyether; Described epoxy curing agent is a polyamine tetrahydroglyoxaline solidifying agent, and toughner is polyethers; The solidifying agent of Resorcinol is Prefere 5808.
The particle diameter of described waste and old rubber particle is 0.5mm～5mm; The particle diameter of waste rubber powder is for being good with 80 order numbers.
Described starting material dry material proportion is: cement 65～90 weight parts, rubber grain is 10～35 weight parts, and the coupling agent resin added is 20%～40% (W/W, a w/w per-cent) of rubber weight, the blending ratio of water and cement (water cement ratio) is 0.2～0.25, is preferably 0.25.
Second purpose of the present invention provides a kind of method for preparing above-mentioned rubber reinforced cement functional composite material.
Preparation method provided by the present invention, be to adopt coupling agent that the coupling tackiness agent is put on waste and old rubber particle and/or vulcanized rubber powder, again with waste and old rubber particle and/or rubber powder and cement or sand-cement slurry blend, then water is added in rubber-cement additive and stirs, through mat formation, compacting, the demoulding, maintenance become product.
In above-mentioned preparation method, described compacting be at normal temperatures with sheet material after the precompressed of 1MPa, put into press, again through the pressure of 5-7MPa compacting 25～35min moulding.
The invention provides a kind of rubber reinforced cement functional composite material and preparation method thereof.This material is mechanical property and the high performance rubber reinforced cement functional composite material of functional preparation that adopts highly reactive polymer Reinforced Rubber and cement material.This material is starting material with waste tire rubber and waste rubber goods and cement or sand-cement slurry, adopt the polymeric coating method that coupling agent is put on waste and old rubber particle/powder surface, rubber grain/powder after will handling again and cement or sand-cement slurry blend, add suitable quantity of water, evenly stir, after in mould, placing release materials, the rubber-cement admixture that stirs is put into mould, through mat formation, precompressed, compacting, the demoulding, maintenance obtain product.Matrix material of the present invention has characteristics such as noise reduction, sound insulation, high impact properties, damping vibration attenuation, wear-resisting, anti-electrostatic, waterproof, also has advantages such as heat-insulation and heat-preservation, can be used for functional material fields such as building, highway, railway, tunnel, acoustic barrier.The present invention also opens up a new way for solving the increasing global difficult problem of waste tire " black pollution ", has a extensive future.
Below in conjunction with specific embodiment the present invention is described in further details.
Embodiment
The present invention is intended to solve in existing rubber-cement and the rubber concrete matrix material and exists mechanical strength lower, functional deficiency, and the problem of the relatively poor grade of weather resistance by improving the interface agglutination bonding state of rubber and cement matrix, improves the mechanical property of interfacial layer.The present invention studies show that, the rubber particle surface pre-treatment can improve the bonding properties of rubber and cement matrix (comprising cement, sand-cement slurry or concrete), adopting suitable coupling agent to improve the interface, is the gordian technique that rubber rubber powder/particle and cement matrix is prepared into matrix material.
The present invention is a basic raw material with waste and used rubber tyre and waste rubber and cement matrix, adopt highly active organic polymer waste rubber to be carried out modification as coupling agent, mix with cement matrix again, through evenly glue mixing, mat formation, normal temperature compacting, the demoulding, maintenance moulding make product.
In the matrix material of the present invention: used waste and used rubber tyre and waste rubber goods should be made particulate state or powdery earlier, and particle diameter is 80 order number (0.18mm)～5mm; Rubber grain/powder can not directly simply mix the manufacturing matrix material with cement.Waste tire rubber is the elastomerics of high-air-tightness, has unique material property.Rubber and cement matrix compound tense, the mechanical property of matrix material is relatively poor, mainly is because the surface energy height of inorganics cement, and the surface energy of organism rubber is low, common " profit " phenomenon can occur, cause interfacial adhesion between the two lower, material mechanical performance is lower.Therefore, the present invention adopts highly active organic polymer as coupling agent, carry out the modification of rubber, the rubber surface modification is meant with methods such as physics, chemistry, machinery and biologies rubber rubber powder/particle surface is handled, according to the physicochemical property of using that purpose changes rubber powder/particle surface that need, to satisfy the needs of advanced composite material strong mechanical performance.The present invention adopts coupling agent to make the sulfur cross-linking key of its rubber surface that can rupture, recover the part plasticity of rubber, graft copolymerization with the cement blend time in addition, make rubber-cement two-phase interface layer form the three-dimensional interpenetrating polymer network structure, then significantly increase the relative molecular mass of its surface active groups and strengthen chemical stability, thereby rubber and cement are combined closely, obviously improve the mechanical property and the stability of material.
The coupling agent that is used for the present invention can add solidifying agent for polymeric polyisocyanate (can add and rub the chain agent), epoxy resin reinforcing agent and toughner or phenol-modified Resorcinol.Here, the chain agent of rubbing of polymeric polyisocyanate can be polyalcohol polyether, and curing agent for epoxy resin is a polyamine, and as tetrahydroglyoxaline solidifying agent etc., toughner is polyethers; The solidifying agent of Resorcinol can be Prefere 5808; The add-on of rubbing chain agent, solidifying agent and toughner can only influence the pliability of product by the requirement design of composite products, can not exert an influence to modified rubber, so its add-on does not limit.
In the matrix material of the present invention: the selection of described cement material is diversified, and as ordinary Portland cement 42.5 or 52.4, R type silicate cement 42.5 or 52.4 etc., cement matrix can also be sand-cement slurry or concrete; The water that uses can be tap water or middle water.
High-performance rubber refinforced cement functional composite material starting material dry material proportion of the present invention is: cement 65～90 weight parts, rubber grain is 10～35 weight parts, the coupling agent resin added is 20%～40% (W/W of rubber weight, w/w per-cent), the blending ratio of water and cement (water cement ratio) is 0.2～0.25, is preferably 0.25.
Preparation technology adopts the normal temperature shaping method to suppress, according to above consumption, earlier coupling agent is made into the coupling tackiness agent, put on the surface ageing of waste and old rubber particle and/or powder then and obtain modified waste rubber half an hour, again with modified waste rubber and cement matrix blend, add water then and stir, through mat formation, compacting, the demoulding, maintenance become sheet material.
Described compacting be at normal temperatures with sheet material after the precompressed of 1MPa, put into press, again through the pressure of 5-7MPa compacting 25～35min moulding.
For the use of coupling agent, can add organic solvent, as acetone, toluene, dimethylbenzene etc.The effect of solvent is that coupling agent is transferred rare surface that is easy to be sprayed on equably with the mist attitude rubber, and it can not exert an influence to modified rubber, and all volatilizations in subsequent operations of these solvents, and therefore, the consumption of solvent generally is not more than 20%.
Below further specify the present invention with specific embodiment.Following embodiment 1-3 adopts best experimental program of the present invention, and those of ordinary skill in the art can expect some identical, replacement schemes apparently according to content disclosed by the invention, all should belong to disclosure of the present invention.Method therefor is ordinary method if no special instructions among the embodiment.
The preparation of embodiment 1, rubber reinforced cement functional composite material
Test specimen target density: 1500kg/m
3, weight: 144 grams, water cement ratio: 0.25, rubber grain particle diameter: 1mm, pressing pressure: 5MPa.
Raw material: cement and rubber ratio of weight and number are 90: 10, wherein, cement 129.6 grams, rubber grain (deriving from waste and used rubber tyre) 14.4 grams, (polyethers that has added polymeric polyisocyanate weight 5% is as rubbing the chain agent for the coupling agent polymeric polyisocyanate, available from Yantai Wan Hua group) 2.88 grams (be rubber grain weight 20%), water 32.4 restrains.Cement is selected the ordinary Portland cement of label 42.5 for use.
Preparation technology: 1) join glue: the acetone of admixture 10% in polymeric polyisocyanate-polyethers, mixing; 2) applying glue: the coupling agent that configures through the high-pressure pump rifle, is evenly sprayed coupling agent at rubber particle surface, ageing half an hour; 3) mix: rubber grain after the applying glue and cement are poured stirrer into and are fully stirred, and water are added in rubber-cement additive to stir again; 4) preparation: mixture is mated formation in mould, make slab, the sheet material geometrical dimension is 160 * 40mm.At normal temperatures, slab is put into press after the precompressed of 1MPa, adopts pressure 5MPa, and the press time is 25～35min, press-formed product.The sheet material shape thickness of composite material of making is 15mm, and plate (demoulding) is unloaded in decompression after the arrival press time, and high-performance rubber refinforced cement functional composite material preparation process is finished in the maintenance moulding.
Product sheet material shape matrix material of the present invention is carried out Performance Detection (the following main standard of reference: international standard " Boards of Portland or equivalent cement reinforced with fibrous wood " ISO 8335-1987; Chinese Industrial Standards (CIS) " public building energy-saving design standard " GB 50189-20; The mensuration GB9978 of Chinese Industrial Standards (CIS) fire endurance; Industry standard " polymer-modified cement mortar testing regulation " DLT/5126-2001), the result: density is 1506kg/m
3Folding strength 〉=6.5MPa; Young's modulus 〉=1700MPa; Plane tensile strength 〉=0.75MPa; Thickness swelling rate≤1%, freezing and thawing performance (through 100 times ,+20 ℃～-20 ℃ freeze-thaw cycle) do not have damage, and the folding strength loss is not more than 4.2%; Oise insulation factor mean value: when being 32.92 (dB), high frequency 1250 when being 700 hertz of 28.39 (dB), intermediate frequency during 300 hertz of low frequencies is 34.12 (dB).Thermal conductivity is 0.19W/ (m
2K).
The preparation of embodiment 2, rubber reinforced cement functional composite material
Test specimen target density: 1500kg/m
3, weight: 144 grams, water cement ratio: 0.20, rubber powder particle diameter: 80 orders, pressing pressure: 5MPa.
Raw material: cement/rubber weight ratio is 65/35, wherein, cement 93.6 grams, rubber powder (deriving from waste rubber goods) 50.4 grams, (polyethers that adds the solidifying agent tetrahydroglyoxaline of weight epoxy 20% and weight epoxy 3% is as toughner for coupling agent Resins, epoxy, available from Tianjin with prosperous chemical plant) 20.16 grams (be rubber grain weight 40%), water 18.72 restrains.Cement is selected the silicate cement of R type label 52.5 for use.
Preparation technology: the preparation process identical with embodiment 1, can be not with an organic solvent when joining glue.
Detect with embodiment 1 same procedure, the product of present embodiment is a slab rubber refinforced cement functional composite material, its performance: actual density is 1502kg/m
3Folding strength 〉=4.8MPa; Young's modulus 〉=1200MPa; Plane tensile strength 〉=0.45MPa; Thickness swelling rate≤0.6%, freezing and thawing performance (through 100 times ,+20 ℃～-20 ℃ freeze-thaw cycle) do not have damage, and the folding strength loss is not more than 5.0%; Oise insulation factor mean value: when being 30.72 (dB), high frequency 1250 when being 700 hertz of 26.27 (dB), intermediate frequency during 300 hertz of low frequencies is 33.52 (dB); Thermal conductivity is 0.15W/ (m
2K).
The preparation of embodiment 3, rubber reinforced cement mortar functional composite material
Test specimen target density: 1500kg/m
3, weight: 144 grams, water cement ratio: 0.25, rubber grain (deriving from the waste rubber tire) particle diameter 5mm, rubber powder (deriving from waste rubber goods) 80 orders, pressing pressure: 7MPa.
Raw material: sand-cement slurry/rubber weight ratio is 75/25, wherein, sand-cement slurry 108 grams, rubber mix particle (rubber grain mixes with any of rubber powder) 36 grams, the phenol-modified Resorcinol of coupling agent (adds 25% solidifying agent Prefere 5808, available from Beijing Tai Er company) 14.4 grams (be rubber grain weight 40%), water 27 restrains.Cement is selected ordinary Portland cement mortar (cement 65%, sand 10%, water 25%) for use.
Preparation technology: the preparation process identical with embodiment 1, can be not with an organic solvent when joining glue.
Detect with embodiment 1 same procedure, the product of present embodiment is a slab rubber refinforced cement mortar functional composite material, and its performance: density is 1498kg/m
3Folding strength intensity 〉=4.3MPa; Young's modulus 〉=1200MPa; Plane tensile strength 〉=0.55MPa; Thickness swelling rate≤0.8%, freezing and thawing performance (through 100 times ,+20 ℃～-20 ℃ freeze-thaw cycle) do not have damage, and the folding strength loss is not more than 6.7%; Oise insulation factor mean value: when being 29.82 (dB), high frequency 1250 when being 700 hertz of 25.39 (dB), intermediate frequency during 300 hertz of low frequencies is 32.87 (dB); Thermal conductivity is 0.13W/ (m
2K).
Comparative Examples: the preparation of rubber-cement composite material
Test specimen target density: 1500kg/m
3, weight: 144 grams, water cement ratio: 0.25, rubber grain particle diameter: 1mm, pressing pressure: 5MPa.
Raw material: cement and rubber (ratio of weight and number) they are 90/10, wherein, and cement 129.6 grams, rubber grain 14.4 grams, no coupling agent, water 32.4 grams.Cement is selected ordinary Portland cement 42.5 for use.
Preparation technology: rubber grain and cement are poured stirrer into and are fully stirred, and water are added in rubber-cement additive to stir again; Mixture is mated formation in mould, make slab, the sheet material geometrical dimension is 160 * 40mm.At normal temperatures, slab is put into press after the precompressed of 1MPa, adopts pressure 5MPa, and the press time is 25～35min, press-formed product.The sheet material shape thickness of making is 15mm, and plate (demoulding) is unloaded in decompression after the arrival press time, and the maintenance moulding obtains slab rubber-cement composite material.
Product to this proportioning carries out Performance Detection, the result: density is 1503kg/m
3Folding strength 〉=1.5MPa; Young's modulus 〉=700MPa; Plane tensile strength 〉=0.2MPa; Thickness swelling rate≤3.7%, freezing and thawing performance (through 100 times ,+20 ℃～-20 ℃ freeze-thaw cycle) do not have damage, and the folding strength loss is not more than 16%; Oise insulation factor mean value: when being 40.16 (dB), high frequency 1250 when being 700 hertz of 35.89 (dB), intermediate frequency during 300 hertz of low frequencies is 42.92 (dB).Thermal conductivity is 0.21W/ (m
2K).
In addition, in the simultaneous test, do not add coupling agent, when the rubber grain addition reached the 15wt% of compound, compacting back matrix material can't take out from mould, and product does not have workability.The rubber grain addition reaches at 10% o'clock, the mechanical property of product, functional relatively poor.
By as can be known to the detection of embodiment of the invention product, high-performance polymer Reinforced Rubber-cement composite material of the present invention, the equal 6.0MPa of folding strength; The Young's modulus average is 1400MPa, and plane tensile strength average is 0.63MPa, illustrates that it has higher mechanical strength and shock resistance.And the comparative sample folding strength only 〉=1.5MPa, Young's modulus 〉=700MPa; Plane tensile strength 〉=0.2MPa does not reach the mechanical property requirements that product uses.High-performance polymer Reinforced Rubber-cement composite material of the present invention, thickness swelling rate≤1%, freezing and thawing performance (through 100 times ,+20 ℃～-20 ℃ freeze-thaw cycle) do not have damage, and folding strength loss average is not more than 5.5%.It is bigger that this major cause is removed mechanical strength, another major cause is because organic polymer adds organic polymer and cement material generation chemical action in cement or the sand-cement slurry to, and form three-dimensional inierpeneirating network structure, improve mechanical property, improved the pore structure of cement matrix, thereby product of the present invention has stronger waterproof, antiacid, alkali, salt, the performance of harmful chlorion infringement, and the thickness swelling rate of comparative sample≤3.7%, freezing and thawing performance is (through 100 times, + 20 ℃～-20 ℃ freeze-thaw cycle) there is not damage, the folding strength loss is not more than 16%, its waterproof, ability such as antifreeze is relatively poor.The oise insulation factor mean value of product of the present invention: when being 32.92 (dB), high frequency 1250 when being 700 hertz of 28.39 (dB), intermediate frequency during 300 hertz of low frequencies is 34.12 (dB).The thermal conductivity average is 0.16W/ (m
2K).It is functional to have good sound insulation and noise reducing, a heat insulating etc. with reference to comparative sample explanation high-performance rubber-cement composite material of the present invention.
More than illustrated that by embodiment the preparation of matrix material of the present invention and different components material mixture ratio obtain different physical mechanicses and material property.Generally speaking, matrix material of the present invention has characteristics such as sound insulation, high impact properties, wear-resisting, anti-electrostatic, waterproof, also has the heat-insulation and heat-preservation advantage, can be used for functional material fields such as building, highway, railway, tunnel, acoustic barrier.Its preparation process does not have chemical pollution source, "dead", no light pollution, noiseless.The present invention also opens up a new way for solving the increasing global difficult problem of waste tire " black pollution ".The development and use of rubber of the present invention-cement functional matrix material have huge market potential, vast market space and prospect.From the angle of environment protection and Sustainable development, the exploitation of this multifunctional composite has crucial economy, environmental protection and social effect.
Claims (10)
1. a rubber reinforced cement functional composite material is with through coupling agent modified waste old and cement matrix blend, adds water again and stirs, through the functional composite material product of mating formation, compacting, the demoulding, maintenance are prepared.
2. rubber reinforced cement functional composite material according to claim 1 is characterized in that: described coupling agent is that polymeric polyisocyanate adds and rubs chain agent, epoxy resin reinforcing agent and toughner or phenol-modified Resorcinol adds solidifying agent; It is described that to rub the chain agent be polyalcohol polyether; Described epoxy curing agent is the polyamine tetrahydroglyoxaline, and toughner is polyethers; The solidifying agent of Resorcinol is Prefere 5808.
3. rubber reinforced cement functional composite material according to claim 1 and 2 is characterized in that: described cement matrix is the ordinary Portland cement, label 42.5 of label 42.5 or 52.4 or 52.4 R type silicate cement, sand-cement slurry or concrete.
4. rubber reinforced cement functional composite material according to claim 1 and 2 is characterized in that: described waste old comprises waste tire rubber and waste rubber goods.
5. according to claim 1 or 2 or 4 described rubber reinforced cement functional composite materials, it is characterized in that: described waste old is particle and/or powder.
6. rubber reinforced cement functional composite material according to claim 5 is characterized in that: the particle diameter of described waste and old rubber particle is 0.5mm～5mm; The particle diameter of powder is a 100-80 order number.
7. according to each described rubber reinforced cement functional composite material of claim 1-6, it is characterized in that: described starting material dry material proportion is: cement 65～90 weight parts, rubber grain is 10～35 weight parts, the coupling agent resin added is 20%～40% of a rubber weight, and the blending ratio of water and cement is 0.2～0.25.
8. method for preparing each described rubber reinforced cement functional composite material of claim 1-7, be coupling agent to be made into the coupling tackiness agent put on the waste old surface, again with waste old and cement matrix blend, add water then and stir, through mat formation, compacting, the demoulding, maintenance become sheet material.
9. preparation method according to claim 8 is characterized in that: described coupling tackiness agent evenly is sprayed at waste old surface and ageing half an hour through the high-pressure pump rifle.
10. according to Claim 8 or 9 described preparation methods, it is characterized in that: compacting be at normal temperatures with sheet material after the precompressed of 1MPa, put into press, again through pressure compacting 25～35min of 5-7MPa moulding.
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| CN (1) | CN101857399A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010164A (en) * | 2010-11-16 | 2011-04-13 | 张伟 | Composition for making building blocks |
| CN102167555A (en) * | 2011-01-13 | 2011-08-31 | 中南大学 | Patching material for preventing and treating corrosion and disease of tunnel lining concrete salt |
| CN102225856A (en) * | 2011-04-14 | 2011-10-26 | 中国新兴保信建设总公司 | Crack-resisting mortar for insulation of modified rubber powder and preparation method thereof |
| CN102864700A (en) * | 2012-09-21 | 2013-01-09 | 无锡恒畅铁路轨枕有限公司 | Low-carbon macromolecule foam material internal core composite concrete cladding sleeper |
| CN103265245A (en) * | 2013-06-09 | 2013-08-28 | 浙江方远建材科技有限公司 | Rubber noise-reduction wear-resistant road brick and preparation method thereof |
| CN104724994A (en) * | 2015-03-19 | 2015-06-24 | 哈尔滨工业大学 | Preparation method of waste rubber powder anti-crack mortar |
| CN105277405A (en) * | 2015-10-13 | 2016-01-27 | 中国地质大学（武汉） | Manufacture method for cement sample used for simulating parent-rock porosity character |
| CN105946110A (en) * | 2016-04-27 | 2016-09-21 | 广东工业大学 | Method for relieving uneven distribution of rubber in modified rubber mortar material |
| CN105948587A (en) * | 2016-05-11 | 2016-09-21 | 王星烨 | Concrete with outstanding comprehensive performance and preparation method of concrete |
| CN107417191A (en) * | 2017-08-11 | 2017-12-01 | 林华清 | A kind of novel building enclosure wall and preparation method thereof |
| CN107445565A (en) * | 2017-07-18 | 2017-12-08 | 河北卓达建材研究院有限公司 | A kind of noise reduction shock-absorbing function plate and preparation method thereof |
| ES2689356A1 (en) * | 2018-08-14 | 2018-11-13 | Promotora Mediterránea-2, S.A. | TREATED RUBBER PARTICLE, METHOD OF OBTAINING AND CONSTRUCTION MATERIAL THAT CONTAINS IT (Machine-translation by Google Translate, not legally binding) |
| CN108793860A (en) * | 2017-04-26 | 2018-11-13 | 华东交通大学 | A kind of rubber particle surface processing method and a kind of high-damping compare rubber concrete |
| CN110423062A (en) * | 2019-06-17 | 2019-11-08 | 桐乡市钟大建材有限公司 | A kind of preparation method of color concrete |
| CN110831911A (en) * | 2017-05-16 | 2020-02-21 | 施莱迪泰尔股份有限公司 | Environment-friendly and reliable heat insulation building block and structure |
| CN112456922A (en) * | 2020-12-21 | 2021-03-09 | 中国农业大学 | Integral hydrophobic self-compacting rubber concrete and preparation method thereof |
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2009
- 2009-05-19 CN CN200910142982A patent/CN101857399A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010164A (en) * | 2010-11-16 | 2011-04-13 | 张伟 | Composition for making building blocks |
| CN102167555A (en) * | 2011-01-13 | 2011-08-31 | 中南大学 | Patching material for preventing and treating corrosion and disease of tunnel lining concrete salt |
| CN102225856A (en) * | 2011-04-14 | 2011-10-26 | 中国新兴保信建设总公司 | Crack-resisting mortar for insulation of modified rubber powder and preparation method thereof |
| CN102225856B (en) * | 2011-04-14 | 2012-09-12 | 中国新兴保信建设总公司 | Crack-resisting mortar for insulation of modified rubber powder and preparation method thereof |
| CN102864700A (en) * | 2012-09-21 | 2013-01-09 | 无锡恒畅铁路轨枕有限公司 | Low-carbon macromolecule foam material internal core composite concrete cladding sleeper |
| CN103265245A (en) * | 2013-06-09 | 2013-08-28 | 浙江方远建材科技有限公司 | Rubber noise-reduction wear-resistant road brick and preparation method thereof |
| CN104724994A (en) * | 2015-03-19 | 2015-06-24 | 哈尔滨工业大学 | Preparation method of waste rubber powder anti-crack mortar |
| CN105277405B (en) * | 2015-10-13 | 2018-11-16 | 中国地质大学（武汉） | Production method for simulating the cement sample of protolith pore character |
| CN105277405A (en) * | 2015-10-13 | 2016-01-27 | 中国地质大学（武汉） | Manufacture method for cement sample used for simulating parent-rock porosity character |
| CN105946110A (en) * | 2016-04-27 | 2016-09-21 | 广东工业大学 | Method for relieving uneven distribution of rubber in modified rubber mortar material |
| CN105946110B (en) * | 2016-04-27 | 2018-07-27 | 广东工业大学 | Improve the method that rubber is unevenly distributed in modified rubber mortar class material |
| CN105948587A (en) * | 2016-05-11 | 2016-09-21 | 王星烨 | Concrete with outstanding comprehensive performance and preparation method of concrete |
| CN108793860A (en) * | 2017-04-26 | 2018-11-13 | 华东交通大学 | A kind of rubber particle surface processing method and a kind of high-damping compare rubber concrete |
| CN110831911A (en) * | 2017-05-16 | 2020-02-21 | 施莱迪泰尔股份有限公司 | Environment-friendly and reliable heat insulation building block and structure |
| CN107445565A (en) * | 2017-07-18 | 2017-12-08 | 河北卓达建材研究院有限公司 | A kind of noise reduction shock-absorbing function plate and preparation method thereof |
| CN107417191A (en) * | 2017-08-11 | 2017-12-01 | 林华清 | A kind of novel building enclosure wall and preparation method thereof |
| ES2689356A1 (en) * | 2018-08-14 | 2018-11-13 | Promotora Mediterránea-2, S.A. | TREATED RUBBER PARTICLE, METHOD OF OBTAINING AND CONSTRUCTION MATERIAL THAT CONTAINS IT (Machine-translation by Google Translate, not legally binding) |
| CN110423062A (en) * | 2019-06-17 | 2019-11-08 | 桐乡市钟大建材有限公司 | A kind of preparation method of color concrete |
| CN112456922A (en) * | 2020-12-21 | 2021-03-09 | 中国农业大学 | Integral hydrophobic self-compacting rubber concrete and preparation method thereof |
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Application publication date: 20101013 |