CN106277959A - A kind of novel concrete based composites - Google Patents
A kind of novel concrete based composites Download PDFInfo
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- CN106277959A CN106277959A CN201610593495.2A CN201610593495A CN106277959A CN 106277959 A CN106277959 A CN 106277959A CN 201610593495 A CN201610593495 A CN 201610593495A CN 106277959 A CN106277959 A CN 106277959A
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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
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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
- C04B2111/90—Electrical properties
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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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of novel concrete based composites, be made up of following raw material: cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, silicon carbide fibre, AR glass fibre, polycarboxylate water-reducer, triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone amide foam stabilizer, emulsified silicone oil defoamer, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polyaluminium sulfate flocculation agent, 701 powder hardening agents, Biformyl, hydrogen peroxide, water.The novel concrete based composites of the present invention has comprcssive strength, rupture strength greatly, answers force-sensing ability high, good stability, sensitivity advantages of higher.
Description
[technical field]
The invention belongs to technical field of electronic components and technical field of material, be specifically related to a kind of novel cement-based and be combined
Material.
[background technology]
Concrete is widely used in industry and civil buildings, road and science of bridge building, airport, harbour and hydraulic engineering.Concrete
Construction, particularly super-long span bridges, emphasis hydraulic engineering, emphasis stadiums, Offshore Platform, nuclear power station work
The civil infrastructure such as journey and high speed railway construction is generally up to many decades projected life, even goes up a century.The most prolonged and repeated
Bear the long-term of the natural environment such as various load, acid rain to corrode and material self deterioration, inevitably lead to civil engineering
Structural damage, may cause outburst disaster, causes safely loss greatly to the people's lives and property.Carried out all for this
Such as engineering structure Population Health monitoring key technology research, material safety military service behavior and new function material preparation basis and property
The research of related fields can be regulated and controled.Great civil engineering structure is implemented health monitoring and has been become civil engineering with load control technology
The hot research problem in field, is future economy construction and social development problem in the urgent need to address.
High-performance smart sensor is the important component part of civil infrastructure intellectual monitoring and Gernral Check-up.In recent years
Coming, the sensor as civil engineering structure Long Period Health Monitoring mainly has Fibre Optical Sensor and the pressure-sensitive biography of cement-base composite material
Sensor, although Fibre Optical Sensor durability and stability are preferable, but price is high, it is difficult to large-scale promotion uses.And cement
Based composites voltage sensitive sensor is simple owing to burying technique underground, and good endurance, good with the civil engineering structure compatibility, price is low
Advantage, becomes the hot subject of civil engineering structure monitoring and Gernral Check-up field.
With the cement (mortar or concrete) the cement-base composite material voltage sensitive sensor as matrix, composite portion is conduction
Phase, the change being made by electrical properties reflects the composite of its change of mechanical property.Prior art is to including carbon fiber, receiving
Rice carbon black, the electric conductivity such as CNT has carried out the trial of different angles.1993, D.D.L.Chung professor and her class
Topic group proposes the concept of sensitive concrete (Smart concrete).1996, Li Zhuoqiu etc. studied and shows, carbon fiber water
Cement-based composite material in gradually pressurization until during Po Huaiing, under resistivity therebetween presents significantly with the increase of compressive stress
Fall, smooth transition and rise rapidly three phases, the these three stage respectively with elasticity, plasticity and the collapse three of carbon fiber reinforced concrete
The individual stage is corresponding.2000, Ou Jinping etc. proposed that exploitation small size, precision height, favorable repeatability, cost be low, durability
Well, technique simple standard Carbon Fiber Cement sensor is buried underground.It is embedded in concrete component formation intelligent concrete
Structural system, has that good endurance, cost be low and the advantage such as the concrete compatibility is good.
The nanomaterial-filled material that prior art discloses for cement matrix has: Nano-meter SiO_22, Nano-meter CaCO33, nanometer
TiO2, CNT, nano carbon black and nanometer Fe2O3Deng.Disclose dispersed and right in cement matrix of nano material
Cement matrix microstructure and the improvement of macro property.
Newcomer's Graphene of carbon family, is the allotrope of the carbon of the sp2 hydridization of a kind of two dimension, is the thinnest material
The material of material-monoatomic thickness.Graphene has the electric property of excellence, thermal property, the specific surface area of superelevation, Young mould
The character of a series of excellences such as amount and fracture strength.Graphene, can be notable as a kind of high performance polymer packing material
Improve the electric conductivity of polymer, heat conductivity and mechanical performance.
Application No. 201310233476.5, entitled " a kind of graphene oxide cement-base composite material strain gauge "
Patent document in disclose a kind of Structural Engineering monitoring strain gauge, this sensor element is to add 0.02% oxidation stone
Prepared by the graphene oxide cement-base composite material of ink alkene.But, although Graphene has a strongest conductive capability, but oxygen
Functionalized graphene is almost without conductive capability, and as the derivant of Graphene, substantial amounts of oxygen-containing functional group is contained on surface, and pi-electron is tied
Structure is destroyed, and conductive capability is almost lost.Only adding under adding the graphene oxide of 0.02%, the conductive capability of Behavior of Hardened Cement Paste improves
Seldom, graphene oxide cement-base composite material cannot play the effect of strain gauge.
Patent No. ZL200710072474.7, the patent of invention disclosure of entitled " a kind of pressure-sensitive cement-base composite material "
One be used for solving piezoelectric media effect sensitivity low and affected greatly by humidity, matrix polarization easily affects electrical signal and tests
Etc. the pressure-sensitive cement-base composite material of defect, this material be by containing 1%-80% function ingredients (nikel powder, carbon fiber, carbon black,
The mixture of one or more in graphite, slag) and the composite of cement-based material composition, but be used for preparing cement based intelligence
Can material time complex process or addition is big, cost is high or seriously constrains cement based intelligence with the defect of cement matrix poor compatibility
The application of energy material.The present inventor needs to provide a kind of conductive compositions to cement matrix through observing, study, analyze discovery for a long time
The technical scheme of the technology that kind, dispersibility optimize the further following deficiency to overcome prior art and exist: (1) carborundum is fine
Dimension bad dispersibility in cement matrix, implant is bad with the matrix compatibility, initial electrical resistivity with answer force-sensing ability discrete
High defect；(2) Sic nanotube with very high length-diameter ratio is easily wound around in cement matrix, and hydrophobic surface chemistry is special
Property causes the bad dispersibility in cement matrix, and the homogeneity ultimately resulting in microstructure and properties is poor；(3) Nano-meter SiO_22Or receive
Rice CaCO3Although to improving cement matrix microstructure and mechanical property has significant contribution, but cement based can not be played and is combined
Material functional, the agglomeration of nano material is likely to cause matrix strength to decline simultaneously.
[summary of the invention]
The present invention provides a kind of novel concrete based composites, prepares solving existing voltage sensitive sensor cement-base composite material
The problems such as complex process, cost are high, answer force-sensing ability and sensitivity low, poor stability.The novel cement-based of the present invention is combined
Material has comprcssive strength, rupture strength greatly, answers force-sensing ability high, good stability, sensitivity advantages of higher.
For solve above technical problem, the present invention by the following technical solutions:
A kind of novel concrete based composites, in units of weight, is made up of following raw material: cement 105-195 part, pulverized slag 9-
13 parts, CHARACTERISTICS OF TAILINGS SAND powder 9-12 part, alkalescence hargil 6-10 part, Two-dimensional Carbon material 18-24 part, silicon carbide fibre 10-15 part, AR glass
Fiber 6-10 part, polycarboxylate water-reducer 0.4-0.6 part, triethylene diamine six water catalyst 0.4-0.6 part, azodicarbonamide
Foaming agent 0.5-0.7 part, esters of acrylic acid foaming control agent foaming control agent 0.4-0.8 part, silicone amide foam stabilizer 0.2-0.4
Part, emulsified silicone oil defoamer 0.2-0.4 part, hexenyl bis-stearamides dispersant 0.5-0.8 part, cumyl peroxide crosslinking
Agent 0.6-0.9 part, polyaluminium sulfate flocculation agent 0.3-0.5 part, 701 powder hardening agent 0.1-0.2 parts, Biformyl 15-20 part, dioxygen
Water 20-30 part, water 500-800 part；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 4-10h that concentration is 10%-14%, then rinsing to pH with water is 6.8-7.2, makes
Silicon carbide fibre must be acidified；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 10-30min under 100-400r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 140-180 DEG C in temperature, and rotating speed is stirring 3.5-5h under 90-140r/min, prepares
Foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 85-92 DEG C in temperature, and rotating speed is stirring 2.5-3.5h under 150-180r/min, dress
Mould, dries to water content≤4%, prepares novel concrete based composites.
Further, the mesh number of described pulverized slag and CHARACTERISTICS OF TAILINGS SAND powder is 200-400.
Further, described alkalescence hargil is nanoscale alkalescence hargil.
Further, described Two-dimensional Carbon material is Graphene.
Further, a length of 0.1-2.8mm of described silicon carbide fibre.
Further, a length of 0.4-2.5mm of described AR glass fibre.
Further, the concentration of described hydrogen peroxide is 28%-32%.
The method have the advantages that
(1) the novel concrete based composites comprcssive strength of the present invention reaches more than 123.41MPa, and rupture strength reaches 26.68
Above, adhesive force is that sensitivity reaches more than 2.24%/MPa, and resistivity reaches less than 42.94, the coefficient of variation reach 0.026 with
Under, prior art is compared, and the novel concrete based composites of the present invention has comprcssive strength, rupture strength greatly, stress perception energy
Power is high, good stability, sensitivity advantages of higher；
(2) voltage sensitive sensor made of novel concrete based composites using the present invention has that initial electrical resistivity is stable, stress
The advantage such as perception height, transducer sensitivity height, good stability；
(3) use pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder as the raw material of the novel concrete based composites of the present invention, be possible not only to reduce
Production cost, and can be the effectively process offer new way of pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder.
[detailed description of the invention]
For ease of being more fully understood that the present invention, being illustrated by following example, these embodiments belong to the protection of the present invention
Scope, but it is not intended to protection scope of the present invention.
In an embodiment, described novel concrete based composites, in units of weight, it is made up of following raw material: cement
105-195 part, pulverized slag 9-13 part, CHARACTERISTICS OF TAILINGS SAND powder 9-12 part, alkalescence hargil 6-10 part, Two-dimensional Carbon material 18-24 part, carborundum
Fiber 10-15 part, AR glass fibre 6-10 part, polycarboxylate water-reducer 0.4-0.6 part, triethylene diamine six water catalyst 0.4-
0.6 part, azodicarbonamide foaming agent 0.5-0.7 part, esters of acrylic acid foaming control agent foaming control agent 0.4-0.8 part, silicon
Keto-amide foam stabilizer 0.2-0.4 part, emulsified silicone oil defoamer 0.2-0.4 part, hexenyl bis-stearamides dispersant 0.5-0.8
Part, cumyl peroxide cross-linking agent 0.6-0.9 part, polyaluminium sulfate flocculation agent 0.3-0.5 part, 701 powder hardening agent 0.1-0.2
Part, Biformyl 15-20 part, hydrogen peroxide 20-30 part, water 500-800 part；
The mesh number of described pulverized slag and CHARACTERISTICS OF TAILINGS SAND powder is 200-400；
Described alkalescence hargil is nanoscale alkalescence hargil；
Described Two-dimensional Carbon material is Graphene；
The a length of 0.1-2.8mm of described silicon carbide fibre；
The a length of 0.4-2.5mm of described AR glass fibre；
The concentration of described hydrogen peroxide is 28%-32%；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 4-10h that concentration is 10%-14%, then rinsing to pH with water is 6.8-7.2, makes
Silicon carbide fibre must be acidified；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 10-30min under 100-400r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 140-180 DEG C in temperature, and rotating speed is stirring 3.5-5h under 90-140r/min, prepares
Foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 85-92 DEG C in temperature, and rotating speed is stirring 2.5-3.5h under 150-180r/min, dress
Mould, dries to water content≤4%, prepares novel concrete based composites.
Embodiment 1
A kind of novel concrete based composites, in units of weight, is made up of following raw material: cement 150 parts, pulverized slag 12 parts,
10 parts of CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil 8 parts, Two-dimensional Carbon material 22 parts, silicon carbide fibre 12 parts, AR glass fibre 8 parts, polycarboxylic acids subtract
0.5 part of water preparation, triethylene diamine six water catalyst 0.5 part, azodicarbonamide foaming agent 0.6 part, esters of acrylic acid foam
Regulator foaming control agent 0.6 part, silicone amide foam stabilizer 0.3 part, emulsified silicone oil defoamer 0.3 part, hexenyl stearic bicine diester
Amine dispersant 0.6 part, cumyl peroxide cross-linking agent 0.8 part, polyaluminium sulfate flocculation agent 0.4 part, 701 powder hardening agents 0.1
Part, Biformyl 18 parts, hydrogen peroxide 25 parts, 650 parts of water；
The mesh number of described pulverized slag and CHARACTERISTICS OF TAILINGS SAND powder is 200-400；
Described alkalescence hargil is nanoscale alkalescence hargil；
Described Two-dimensional Carbon material is Graphene；
The a length of 0.1-2.8mm of described silicon carbide fibre；
The a length of 0.4-2.5mm of described AR glass fibre；
The concentration of described hydrogen peroxide is 30%；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 7h that concentration is 12%, then rinsing to pH with water is 7, prepares acidifying carborundum fine
Dimension；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 20min under 300r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 160 DEG C in temperature, and rotating speed is stirring 4.5h under 120r/min, prepares foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 88 DEG C in temperature, and rotating speed is stirring 3h under 160r/min, die-filling, dries to water content
It is 4%, prepares novel concrete based composites.
Embodiment 2
A kind of novel concrete based composites, in units of weight, is made up of following raw material: cement 105 parts, pulverized slag 9 parts, tail
9 parts of ore in sand form powder, alkalescence hargil 6 parts, Two-dimensional Carbon material 18 parts, silicon carbide fibre 10 parts, AR glass fibre 6 parts, polycarboxylic acids diminishing
Agent 0.4 part, triethylene diamine six water catalyst 0.4 part, azodicarbonamide foaming agent 0.5 part, esters of acrylic acid foaming are adjusted
Joint agent foaming control agent 0.4 part, silicone amide foam stabilizer 0.2 part, emulsified silicone oil defoamer 0.2 part, hexenyl bis-stearamides
Dispersant 0.5 part, cumyl peroxide cross-linking agent 0.6 part, polyaluminium sulfate flocculation agent 0.3 part, 701 powder hardening agent 0.1 part,
Biformyl 15 parts, hydrogen peroxide 20 parts, 500 parts of water；
The mesh number of described pulverized slag and CHARACTERISTICS OF TAILINGS SAND powder is 200-400；
Described alkalescence hargil is nanoscale alkalescence hargil；
Described Two-dimensional Carbon material is Graphene；
The a length of 0.1-2.8mm of described silicon carbide fibre；
The a length of 0.4-2.5mm of described AR glass fibre；
The concentration of described hydrogen peroxide is 28%；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 10h that concentration is 10%, then rinsing to pH with water is 6.8, prepares acidifying carbonization
Silica fibre；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 30min under 100r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 140 DEG C in temperature, and rotating speed is stirring 5h under 90r/min, prepares foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 85 DEG C in temperature, and rotating speed is stirring 3.5h under 150r/min, die-filling, dries to aqueous
Amount is 3%, prepares novel concrete based composites.
Embodiment 3
A kind of novel concrete based composites, in units of weight, is made up of following raw material: cement 195 parts, pulverized slag 13 parts,
12 parts of CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil 10 parts, Two-dimensional Carbon material 24 parts, silicon carbide fibre 15 parts, AR glass fibre 10 parts, polycarboxylic acids
Water reducer 0.6 part, triethylene diamine six water catalyst 0.6 part, azodicarbonamide foaming agent 0.7 part, esters of acrylic acid are sent out
Bubble regulator foaming control agent 0.8 part, silicone amide foam stabilizer 0.4 part, emulsified silicone oil defoamer 0.4 part, hexenyl are double stearic
Amide dispersant 0.8 part, cumyl peroxide cross-linking agent 0.9 part, polyaluminium sulfate flocculation agent 0.5 part, 701 powder hardening agents
0.2 part, Biformyl 20 parts, hydrogen peroxide 30 parts, 800 parts of water；
The mesh number of described pulverized slag and CHARACTERISTICS OF TAILINGS SAND powder is 200-400；
Described alkalescence hargil is nanoscale alkalescence hargil；
Described Two-dimensional Carbon material is Graphene；
The a length of 0.1-2.8mm of described silicon carbide fibre；
The a length of 0.4-2.5mm of described AR glass fibre；
The concentration of described hydrogen peroxide is 32%；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 4h that concentration is 14%, then rinsing to pH with water is 7.2, prepares acidifying carborundum
Fiber；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 10min under 400r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 180 DEG C in temperature, and rotating speed is stirring 3.5h under 140r/min, prepares foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 92 DEG C in temperature, and rotating speed is stirring 2.5h under 180r/min, die-filling, dries to aqueous
Amount is 2%, prepares novel concrete based composites.
The performance of the novel concrete based composites that detection embodiment 1-3 prepares, result is as shown in the table.
| Embodiment | Comprcssive strength (MPa) | Rupture strength (MPa) | Sensitivity (%/MPa) | Resistivity | The coefficient of variation (%) |
| 1 | 128.04 | 28.98 | 2.63 | 41.13 | 0.022 |
| 2 | 123.41 | 26.68 | 2.24 | 42.94 | 0.026 |
| 3 | 134.78 | 31.26 | 3.27 | 39.33 | 0.019 |
As seen from the above table: the novel concrete based composites comprcssive strength of the present invention reaches more than 123.41MPa, and anti-folding is strong
Degree reaches more than 26.68, and adhesive force is that sensitivity reaches more than 2.24%/MPa, and resistivity reaches less than 42.94, the coefficient of variation
Reach less than 0.026, illustrate that the novel cement-based composite property of the present invention is excellent.
Above content it cannot be assumed that the present invention be embodied as be confined to these explanation, technology belonging to the present invention is led
For the those of ordinary skill in territory, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace,
All should be considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted to.
Claims (7)
1. a novel concrete based composites, it is characterised in that in units of weight, is made up of following raw material: cement 105-
195 parts, pulverized slag 9-13 part, CHARACTERISTICS OF TAILINGS SAND powder 9-12 part, alkalescence hargil 6-10 part, Two-dimensional Carbon material 18-24 part, silicon carbide fibre
10-15 part, AR glass fibre 6-10 part, polycarboxylate water-reducer 0.4-0.6 part, triethylene diamine six water catalyst 0.4-0.6
Part, azodicarbonamide foaming agent 0.5-0.7 part, esters of acrylic acid foaming control agent foaming control agent 0.4-0.8 part, silicone acyl
Amine foam stabilizer 0.2-0.4 part, emulsified silicone oil defoamer 0.2-0.4 part, hexenyl bis-stearamides dispersant 0.5-0.8 part, mistake
Oxidation diisopropylbenzene (DIPB) cross-linking agent 0.6-0.9 part, polyaluminium sulfate flocculation agent 0.3-0.5 part, 701 powder hardening agent 0.1-0.2 parts, second
Dialdehyde 15-20 part, hydrogen peroxide 20-30 part, water 500-800 part；
The preparation method of described novel concrete based composites, comprises the following steps:
S1: with the soak with hydrochloric acid silicon carbide fibre 4-10h that concentration is 10%-14%, then rinsing to pH with water is 6.8-7.2, makes
Silicon carbide fibre must be acidified；
S2: at rotating speed be by cement, pulverized slag, CHARACTERISTICS OF TAILINGS SAND powder, alkalescence hargil, Two-dimensional Carbon material, Biformyl, hydrogen peroxide, water
Stir 10-30min under 100-400r/min, prepare slurry；
S3: by step S1 prepare acidifying silicon carbide fibre, step S2 prepare slurry, AR glass fibre, polycarboxylate water-reducer,
Triethylene diamine six water catalyst, azodicarbonamide foaming agent, esters of acrylic acid foaming control agent foaming control agent, silicone
Amide foam stabilizer, emulsified silicone oil defoamer are 140-180 DEG C in temperature, and rotating speed is stirring 3.5-5h under 90-140r/min, prepares
Foam solution；
S4: by foam solution prepared for step S3, hexenyl bis-stearamides dispersant, cumyl peroxide cross-linking agent, polymerization
Aluminum sulfate flocculation agent, 701 powder hardening agents are 85-92 DEG C in temperature, and rotating speed is stirring 2.5-3.5h under 150-180r/min, dress
Mould, dries to water content≤4%, prepares novel concrete based composites.
Novel concrete based composites the most according to claim 1, it is characterised in that described pulverized slag and the mesh of CHARACTERISTICS OF TAILINGS SAND powder
Number is 200-400.
Novel concrete based composites the most according to claim 1, it is characterised in that described alkalescence hargil is nanoscale alkalescence
Hargil.
Novel concrete based composites the most according to claim 1, it is characterised in that described Two-dimensional Carbon material is Graphene.
Novel concrete based composites the most according to claim 1, it is characterised in that described silicon carbide fibre a length of
0.1-2.8mm。
Novel concrete based composites the most according to claim 1, it is characterised in that described AR glass fibre a length of
0.4-2.5mm。
Novel concrete based composites the most according to claim 1, it is characterised in that the concentration of described hydrogen peroxide is 28%-
32%。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593495.2A CN106277959A (en) | 2016-07-26 | 2016-07-26 | A kind of novel concrete based composites |
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| CN201610593495.2A CN106277959A (en) | 2016-07-26 | 2016-07-26 | A kind of novel concrete based composites |
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| CN106277959A true CN106277959A (en) | 2017-01-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274646A (en) * | 2013-06-13 | 2013-09-04 | 大连海事大学 | Stress sensor made of graphene oxide cement-based composite material |
| CN104446176A (en) * | 2014-08-25 | 2015-03-25 | 北京建筑大学 | Cement-based composite material and pressure sensor made of same |
| CN105503255A (en) * | 2015-12-15 | 2016-04-20 | 苏州万盛混凝土有限公司 | Preparation method of high-strength pressure-sensitive foam concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274646A (en) * | 2013-06-13 | 2013-09-04 | 大连海事大学 | Stress sensor made of graphene oxide cement-based composite material |
| CN104446176A (en) * | 2014-08-25 | 2015-03-25 | 北京建筑大学 | Cement-based composite material and pressure sensor made of same |
| CN105503255A (en) * | 2015-12-15 | 2016-04-20 | 苏州万盛混凝土有限公司 | Preparation method of high-strength pressure-sensitive foam concrete |
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