CN106220051B - A kind of polypropylene fibre boulder concrete of sound insulation environmental protection and preparation method thereof - Google Patents
A kind of polypropylene fibre boulder concrete of sound insulation environmental protection and preparation method thereof Download PDFInfo
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- CN106220051B CN106220051B CN201610536423.4A CN201610536423A CN106220051B CN 106220051 B CN106220051 B CN 106220051B CN 201610536423 A CN201610536423 A CN 201610536423A CN 106220051 B CN106220051 B CN 106220051B
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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
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2111/52—Sound-insulating materials
-
- 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
Abstract
Polypropylene fibre boulder concrete the invention discloses a kind of sound insulation environmental protection and preparation method thereof, the concrete mainly includes：Cobble, foaming agent, sound insulation agent, polypropylene fibre, cement, aggregate, high efficiency water reducing agent；The polypropylene fibre mainly includes：Pp material, coupling agent, dispersant, fire retardant, coloring agent；The preparation method includes the following steps：Acrylic resin raw material crushes and drying, mixed raw material and various additives, melt extruded, hot-rolling stretching, high temperature oil bath, surface treatment, thermal finalization, cooling cutting packaging.Polypropylene fiber concrete prepared by the present invention has good heat resistance, chemical stability, sound-proofing is good, acid-fast alkali-proof is extremely strong, the more common concrete of its physical and mechanical property is greatly enhanced, and has the mechanical properties such as very strong compression strength, static elastic constant, tensile splitting strength, flexural strength by the building formed after pouring.
Description
Technical field
The invention belongs to building material technical fields, are specifically a kind of polypropylene fibre cobble coagulations of sound insulation environmental protection
Soil and preparation method thereof.
Background technology
Concrete refers to the general designation of the cementing integral engineered composite material of aggregate by cementitious material.The coagulation usually said
A native word refers to make cementitious material, sand, masonry aggregate with cement；With water（Additive and admixture can be contained）Match by a certain percentage
Close, it is agitated obtained by cement concrete, also referred to as normal concrete, it is widely used in civil engineering.Cement, lime, gypsum
Inorganic coagulation materials is waited, which to be mixed and stirred with water, makes concrete mix have plasticity；And then it is condensed by chemically and physically chemical action
It hardens and generates intensity.It is, in general, that drinking water can all meet the requirement of concrete mixing water.Excessive acid, alkali, salt in water
Harmful influence can be all generated to concrete with organic matter.Gathering materials not only has filling effect, but also unit weight to concrete, intensity
It is had a major impact with properties such as deformations.
Cobble refers to the stone that river channel erosion natural sediment gets off, rounded or oval.For that can be improved in concrete
Mobility, the workability of concrete, it is strong with the bond stress of cement, is frequently used for road concrete, to improve flexural strength.With
The concrete that good grading mineral mixture is prepared, its voidage is low, can save cement, and density is good.It can be
When the dosage of cement mortar is low, just reach identical mobility so that the contraction distortion of concrete is small, and the heat of hydration is low, and volume change is steady
It is fixed, advantageous effect is played to the intensity and durability that improve concrete.Because concrete be by aggregate and cementitious material mixing and
Into composite material.So following technology requirement is made to aggregate used in concrete, to ensure that fresh concrete has good apply
The requirement of work and certain intensity, durability and other performances.
Sound-absorbing material is mostly loose porous material, such as mineral wool, blanket, sound absorbing mechanism are that sound wave gos deep into material
Hole, and hole is mostly the internal open pore to interpenetrate, by air molecule friction and viscosity resistance and makes tiny fibre
Dimension makees mechanical oscillation, so as to which acoustic energy be made to be changed into thermal energy.The acoustic absorptivity of this kind of porous sound-absorbing material, generally from low frequency to height
Frequency gradually increase, thus it is preferable to the sound absorbing effects of high frequency and intermediate frequency.
In current build concrete, mostly using single architectural physics performance requirement as standard, it can seldom go to consider
Application of the concrete of multi-functional in architectural process, and constantly bringing forth new ideas with science and technology, people are for construction material sheet
The functionality of body also has very high requirement, can not only meet the requirement of mechanical property, will also be from sound insulation, environmental protection, high temperature resistant, guarantor
It is warm, fire-retardant etc. many-sided to meet the needs of functional building, therefore more important for the research of functional material.
Invention content
The technical problem to be solved by the present invention is to provide the polypropylene fibre boulder concretes and its system of a kind of sound insulation environmental protection
Preparation Method.
Technical scheme is as follows：
A kind of polypropylene fibre boulder concrete of sound insulation environmental protection, the concrete mainly include following component：Cobble
1200-1300 parts, it is 15-25 parts of foaming agent, 12-18 parts of sound insulation agent, 1.2-1.5 parts of polypropylene fibre, 300-350 parts of cement, thin
750-850 parts of aggregate, 1.6-1.8 parts of high efficiency water reducing agent, 150-200 parts of water, the preparation method are：First by the weight group
The fine aggregate, cement, cobble, foaming agent, sound insulation agent, high efficiency water reducing agent of part are put into mandatory blender, then will be described heavy
The polypropylene fibre of amount component is scatter with hand, is added in blender, is first allowed fine aggregate, cement, cobble, foaming agent, sound insulation
Agent, high efficiency water reducing agent, polypropylene fibre dry mixing 3 minutes or so, then add water wet-mixing 3 minutes, obtain the sound insulation ring
The polypropylene fibre boulder concrete of guarantor.
Further, the cobble particle size range be 10-30mm, have quality is hard, durability is good, clean surface,
Clay content 0.5-0.8%, clod content 0.2-0.5%, elongated particles 1-1.5%, sulfate and sulfide content 0.3-0.5%,
Crush values 5, mass loss 1.2, apparent density 2800kg/m3, bulk density 1700kg/m3, voidage 23-25%.
Further, the foaming agent includes following material composition：6-12 parts of neopelex, saponin solution
15-18 parts, 4-6 parts of polyethylene glycol, 12-18 parts of carboxymethyl cellulose, 45-65 parts of water；The foaming agent preparation method is：
With stirring, the neopelex for heating, the composition by weight being added in the normal pressure stainless steel cauldron of cooling system
It with saponin solution, is sufficiently stirred, is uniformly dissolved, heat, temperature is 45-50 DEG C, is stirred to react 20-30min, then heats to
It 60-70 DEG C, is slowly added to add in polyethylene glycol, solution viscosity can be made to have apparent rising, foam can be slowed down well
Internal drain age velocity, so as to materially increase foam legal person stability in solution, when the solution in reaction vessel
The reaction was complete, adds in the carboxymethyl cellulose and water of the composition by weight, is stirred to react 1-2h, is continuously heating to 70-80 DEG C, stir
Reaction 2-3h is mixed, is cooled to room temperature to get to the foaming agent.
Further, the sound insulation agent is activated carbon/calcium carbonate nano composite granule；Activated carbon/the calcium carbonate
Nano composite powder preparation is：The sodium carbonate liquor of preparation 0.5mol/L and the calcium chloride of 0.5mol/L are molten respectively first
Liquid, dispensing molar ratio are 1:1.2-1:5, activated carbon is ground into fine powder, crosses 300-400 mesh sieve, then by sodium carbonate liquor with
Activated carbon fine powder is according to 20:3 mass ratio mixing, the fatty acid sorbitan mixing for adding 0.05-0.1 times of its mixing quality are equal
It is even, 70-80 DEG C is warming up to, 25 DEG C are down to after maintaining 2-4h, adds in calcium chloride solution reaction, Na2CO3+CaCl2=2NaCl+
CaCO3, the activated carbon of calcium carbonate dipping is stirred to get with 800-1000rpm rotating speeds, then passes through obtained mixed serum
Ball milling, centrifugation, it is dry after, using nano grinder be crushed to grain size for 100-200nm to get to the activated carbon/
Calcium carbonate nano composite granule.
Further, the polypropylene fibre mainly includes following component：80-90 parts of acrylic resin raw material, coupling
2-5 parts of agent, 3-6 parts of dispersant, 1.5-3.5 parts of fire retardant, 3.5-5.5 parts of coloring agent；The preparation method includes following step
Suddenly：
A. it crushes machine using synthetic resin to crush acrylic resin raw material, the acrylic resin feedstock grade is injection
Grade, fusing point are more than 165 DEG C, and the acrylic resin melt index is 5-50g/10min, and it is to be that the synthetic resin, which crushes machine,
For system during crushing material, low-temperature receiver forms a closed circuit circulatory system, and the energy is made to be fully used, and saves energy consumption, makes
By the use of liquid nitrogen as abrasive media, realization ultralow temperature crushes, explosion-proof, the resultant effects such as anti-oxidation of material, the low-temperature receiver temperature of crushing
It is subzero 20 DEG C to spend, and smashing fineness is 80-120 mesh, then will obtain acrylic resin fine powder and pour into heatable agitator tank,
Mixing speed is 180-300r/min, and drying temperature is 100-120 DEG C, and the dry duration is 1-5h, makes its moisture low
It is spare in 1%；
B. to adding in the coupling agent of the weight ratio, dispersant, fire-retardant in dried acrylic resin raw material fine powder
Agent, coloring agent, the coloring agent be phthalocyanine green, molecule be it is highly stable, have well it is alkaline-resisting, acid, not with it is molten
Agent is reacted, and has the ability of very strong resistance heat and ultraviolet radiation.Mechanical agitation mixing is carried out using mixed at high speed blender, first
2-3h is stirred, then stir 15-30min, control stirring temperature with the rotating speed of 1000-1200r/min with the rotating speed of 240-300r/min
Degree makes various additives be uniformly mixed obtained mixture with acrylic resin raw material fine powder between 80-100 DEG C；
C. mixture by response type double screw extruder melted, squeezed, 180-200 DEG C of melting temperature squeezes
Temperature is 220-240 DEG C, and the material after melt extruded carries out spinneret through spinning pack, and the aperture of spinning pack is 0.3-0.5mm,
Cold front heavy rain is accessed after spinneret, cold wind temperature is 20-30 DEG C, and cold air blast velocity 0.5-1m/min makes melt fiber after cooling
Temperature is at 20-30 DEG C；
D. melt fiber after cooling is stretched by 60-90 DEG C of hot-rolling, draw ratio is 1.5-3.0 times, is then made
It is cut with sizing cutting machine, control length is in 1000mm, boundling；
E. the melt fiber after boundling is subjected to oil bath, temperature is 90-110 DEG C, and oil bath length is 2-5m, in oil bath process
Middle carry out drawing-off, draw ratio 1:1.5, the oil bath is dimethicone, has heat resistance, cold resistance, viscosity with temperature
Degree variation is small, and water proofing property, surface tension are small, thermal conductivity, physiological inertia, the chemical stability having had, and the melt after oil bath is fine
For dimension by steam, anxiety, relaxation heat setting, steam chest temperature is 100-120 DEG C, and nervous heat setting temperature is 130-150 DEG C, pine
Relaxation heat setting temperature is 110-130 DEG C, and the relaxation heat setting time is 20-30 minutes, and the polypropylene for cutting into 200mm length is fine
Dimension；
F. the polypropylene fibre of 200mm length is handled using Surface Treatment with Plasma machine, using allylamine etc. from
Subprocessing, 50-100 μm of thickness of surface attachment, processing time 30-60min make allylamine form polymer by plasma state,
Contain the functions such as a large amount of level-one amine, a small amount of two level, tertiary amine and imines, nitrile in the coating formed on polypropylene fibre surface
Group, the also unsaturated functional groups such as CO, CN, also generate a small amount of carbonyl, amide, ether, carboxyl functional group, make after being combined with air
The interfacial adhesion of fiber makes moderate progress, and improves surface adhesion force；
G. room temperature will be cooled to after surface treatment, be cut with cutter, length range 50-60mm, packed, that is, make
Obtain the polypropylene fibre.
Further, the coupling agent is titanate coupling agent TMC-311, this product can improve the anti-impact of composite material
Hit intensity, mobility for inorganic filler and the coupling of organic resin, can increase its waterproof, fire prevention, anti-corrosion ability.
Further, the dispersant is Sodium Polyacrylate-allyl alcoholic solution, and preparation method is：By bisulfite
Sodium and water are according to 1:The volume ratio mixing of 20-30, stirring and dissolving is heated to 60-70 DEG C, starts to be added dropwise acrylic acid and allyl alcohol
Mixture, the volume ratio of mixing is 1:3, total addition is 5-10%, then adds the aqueous solution of 20-30% ammonium persulfates,
Subsequent continuous insulation reaction is added dropwise, then for cooling down to 30-40 DEG C, it is 7-8 to be neutralized to pH value with sodium hydrate aqueous solution,
Obtain Sodium Polyacrylate-allyl alcoholic solution of thick low molecular weight.
Further, the fire retardant mixes generation esterification with ethylene glycol for methyl orthophosphoric acid and is made, wherein phosphoric acid
The molal volume of methyl esters and ethylene glycol ratio is 5：4.
Further, the fine aggregate refers to natural river sand, fineness modulus 3.5, apparent density 2650kg/m3, accumulation
Density 1500kg/m3, clay content 3-5%, water content 0.3%, mica content 3%, sulfate and sulfide content 1.5%, other are light
Content of material 0.8%.
Further, the high efficiency water reducing agent performance indicator is：PH value 7-9, water-reducing rate 25-30%, cement mortar flowing speed
Degree >=180mm, 28d shrinkage ratios（%）≤ 150, compressive strength rate (%) R7 >=125, R28 >=110.
The polypropylene fiber concrete of sound insulation environmental protection prepared by the present invention has good heat resistance, chemical stability, resistance to
Sour alkali resistance is extremely strong, and soundproof effect is good, and the more common concrete of physical and mechanical property is greatly enhanced, and adds in and is selected according to standard
The mechanical property of concrete has been greatly enhanced in the cobble selected, very strong so as to make to have by the building formed after pouring
The mechanical properties such as compression strength, static elastic constant, tensile splitting strength, flexural strength add in foaming prepared by special process
Agent and sound insulation agent, enhance the associativity between cobble, cement, fine aggregate, compared with common concrete, coagulation of the invention
The abrasive resistance of soil, toughness, impact resistance, freedom from cracking, resist chemical and the durabilities such as antifatigue are all significantly increased, especially
It is significant to the demand side for improving the functional concrete such as noise insulation.
Specific embodiment
Embodiment 1：
A kind of polypropylene fibre boulder concrete of sound insulation environmental protection, the concrete mainly include following component：Cobble
1200 parts, 15 parts of foaming agent, 12 parts of sound insulation agent, 1.2 parts of polypropylene fibre, 300 parts of cement, 750 parts of fine aggregate, high efficiency water reducing agent
1.6 parts, 150 parts of water, the preparation method are：First by the fine aggregate of the composition by weight, cement, cobble, foaming agent, sound insulation
Agent, high efficiency water reducing agent are put into mandatory blender, and then the polypropylene fibre of the composition by weight is scatter with hand, are added in
Into blender, fine aggregate, cement, cobble, foaming agent, sound insulation agent, high efficiency water reducing agent, polypropylene fibre dry mixing 3 minutes are first allowed
Left and right, then adds water wet-mixing 3 minutes, obtains the polypropylene fibre boulder concrete of the sound insulation environmental protection.
Wherein, the cobble particle size range is 10mm, with quality is hard, durability is good, clean surface, clay content
0.5%, clod content 0.2%, elongated particles 1%, sulfate and sulfide content 0.3%, crush values 5, mass loss 1.2, table
See density 2800kg/m3, bulk density 1700kg/m3, voidage 23%.The foaming agent includes following material composition：12
6 parts of sodium alkyl benzene sulfonate, 15 parts of saponin solution, 4 parts of polyethylene glycol, 12 parts of carboxymethyl cellulose, 45 parts of water；The foaming agent
Preparation method is：With stirring, heating, cooling system normal pressure stainless steel cauldron in add in the 12 of the composition by weight
Sodium alkyl benzene sulfonate and saponin solution, are sufficiently stirred, are uniformly dissolved, and heating, temperature is 45 DEG C, is stirred to react 20min, Ran Housheng
Temperature is slowly added to add in polyethylene glycol, solution viscosity can be made to have apparent rising, can slow down foam well to 60 DEG C
Internal drain age velocity, so as to materially increase foam legal person stability in solution, when the solution in reaction vessel
The reaction was complete, adds in the carboxymethyl cellulose and water of the composition by weight, is stirred to react 1h, is continuously heating to 70 DEG C, stirring is anti-
2h is answered, is cooled to room temperature to get to the foaming agent.The sound insulation agent is activated carbon/calcium carbonate nano composite granule；Institute
The activated carbon stated/calcium carbonate nano composite granule preparation method is：First respectively prepare 0.5mol/L sodium carbonate liquor and
The calcium chloride solution of 0.5mol/L, dispensing molar ratio are 1:1.2, activated carbon is ground into fine powder, 300 mesh sieve is crossed, then by carbon
Acid sodium solution is with activated carbon fine powder according to 20:3 mass ratio mixing, the fatty acid sorbitan for adding 0.05 times of its mixing quality mix
It closes uniformly, is warming up to 70 DEG C, 25 DEG C are down to after maintaining 2h, add in calcium chloride solution reaction, Na2CO3+CaCl2=2NaCl+
CaCO3, with 800rpm rotating speeds stir to get calcium carbonate dipping activated carbon, then by obtained mixed serum by ball milling,
Centrifuge, it is dry after, it is 100nm to get to the activated carbon/calcium carbonate nano to be crushed to grain size using nano grinder
Composite granule.
Wherein, the polypropylene fibre mainly includes following component：80 parts of acrylic resin raw material, 2 parts of coupling agent, point
3 parts of powder, 1.5 parts of fire retardant, 3.5 parts of coloring agent；The preparation method includes the following steps：
A. it crushes machine using synthetic resin to crush acrylic resin raw material, the acrylic resin feedstock grade is injection
Grade, fusing point are more than 165 DEG C, and the acrylic resin melt index is 5g/10min, and it is system that the synthetic resin, which crushes machine,
During crushing material, low-temperature receiver forms a closed circuit circulatory system, and the energy is made to be fully used, and saves energy consumption, uses
Liquid nitrogen is as abrasive media, and realization ultralow temperature crushes, explosion-proof, the resultant effects such as anti-oxidation of material, the sink temperature of crushing
It it is subzero 20 DEG C, smashing fineness is 80 mesh, then will obtain acrylic resin fine powder and pour into heatable agitator tank, stirring speed
It spends for 180r/min, drying temperature is 100 DEG C, and the dry duration is 1h, makes its moisture less than 1%, spare；
B. to adding in the coupling agent of the weight ratio, dispersant, fire-retardant in dried acrylic resin raw material fine powder
Agent, coloring agent, the coloring agent be phthalocyanine green, molecule be it is highly stable, have well it is alkaline-resisting, acid, not with it is molten
Agent is reacted, and has the ability of very strong resistance heat and ultraviolet radiation.Mechanical agitation mixing is carried out using mixed at high speed blender, first
2h is stirred, then stir 15min with the rotating speed of 1000r/min with the rotating speed of 240r/min, control whipping temp makes between 80 DEG C
Various additives are uniformly mixed obtained mixture with acrylic resin raw material fine powder；
C. mixture by response type double screw extruder melted, squeezed, 180 DEG C of melting temperature, extrusion temperature
It it is 220 DEG C, the material after melt extruded carries out spinneret through spinning pack, and the aperture of spinning pack is 0.3mm, is accessed after spinneret cold
Air cooling, cold wind temperature are 20 DEG C, cold air blast velocity 0.5m/min, make melt fiber temperature after cooling at 20 DEG C；
D. melt fiber after cooling is stretched by 60 DEG C of hot-rolling, draw ratio is 1.5 times, is then cut using scale
Cutting mill is cut, and control length is in 1000mm, boundling；
E. the melt fiber after boundling is subjected to oil bath, temperature is 90 DEG C, and oil bath length is 2m, is carried out during oil bath
Drawing-off, draw ratio 1:1.5, the oil bath is dimethicone, and there is heat resistance, cold resistance, viscosity to vary with temperature
Small, water proofing property, surface tension are small, and thermal conductivity, physiological inertia, the chemical stability having had, the melt fiber after oil bath pass through
Steam, anxiety, relaxation heat setting, steam chest temperature are 100 DEG C, and nervous heat setting temperature is 130 DEG C, and relaxation heat setting temperature is
110 DEG C, the relaxation heat setting time is 20 minutes, cuts into the polypropylene fibre of 200mm length；
F. the polypropylene fibre of 200mm length is handled using Surface Treatment with Plasma machine, using allylamine etc. from
Subprocessing, 50 μm, processing time 30min of thickness of surface attachment, makes allylamine form polymer by plasma state, in polypropylene
Contain a large amount of level-one amine, a small amount of two level, tertiary amine and imines, Jing Deng functional groups in the coating that fiber surface is formed, also
The unsaturated functional groups such as CO, CN also generate a small amount of carbonyl, amide, ether, carboxyl functional group, make fiber after being combined with air
Interfacial adhesion makes moderate progress, and improves surface adhesion force；
G. room temperature will be cooled to after surface treatment, be cut with cutter, length range 50mm, packed, obtain
The polypropylene fibre.
Wherein, the coupling agent is titanate coupling agent TMC-311, and the shock resistance that this product can improve composite material is strong
Degree, mobility, for inorganic filler and the coupling of organic resin, can increase its waterproof, fire prevention, anti-corrosion ability.The dispersion
Agent is Sodium Polyacrylate-allyl alcoholic solution, and preparation method is：By sodium hydrogensulfite and water according to 1:20 volume ratio mixing,
Stirring and dissolving is heated to 60 DEG C, starts that the mixture of acrylic acid and allyl alcohol is added dropwise, the volume ratio of mixing is 1:3, it is total to add in
It is 5% to measure, and then adds the aqueous solution of 20% ammonium persulfate, subsequent continuous insulation reaction is added dropwise, then cooling down to 30
DEG C, pH value is neutralized to as 7 to get to the Sodium Polyacrylate of thick low molecular weight-allyl alcoholic solution with sodium hydrate aqueous solution.
The fire retardant mixes generation esterification with ethylene glycol for methyl orthophosphoric acid and is made, wherein mole of methyl orthophosphoric acid and ethylene glycol
Volume ratio is 5：4.The fine aggregate refers to natural river sand, fineness modulus 3.5, apparent density 2650kg/m3, bulk density
1500kg/m3, clay content 3%, water content 0.3%, mica content 3%, sulfate and sulfide content 1.5%, other light materials contain
Amount 0.8%.The high efficiency water reducing agent performance indicator is：PH value 7, water-reducing rate 25%, cement mortar flowing velocity 180mm, 28d contraction
Rate ratio（%）50, compressive strength rate (%) R7=125, R28=110.
Embodiment 2：
A kind of polypropylene fibre boulder concrete of sound insulation environmental protection, the concrete mainly include following component：Cobble
1250 parts, 20 parts of foaming agent, 15 parts of sound insulation agent, 1.35 parts of polypropylene fibre, 325 parts of cement, 800 parts of fine aggregate, efficient diminishing
1.7 parts of agent, 175 parts of water, the preparation method are：First by the fine aggregate of the composition by weight, cement, cobble, foaming agent, every
Sound agent, high efficiency water reducing agent are put into mandatory blender, and then the polypropylene fibre of the composition by weight with hand is scatter, is added
Enter into blender, fine aggregate, cement, cobble, foaming agent, sound insulation agent, high efficiency water reducing agent, polypropylene fibre dry mixing 3 is first allowed to divide
Then clock or so adds water wet-mixing 3 minutes, obtain the polypropylene fibre boulder concrete of the sound insulation environmental protection.
Wherein, the cobble particle size range is 20mm, with quality is hard, durability is good, clean surface, clay content
0.65%, clod content 0.35%, elongated particles 1.25%, sulfate and sulfide content 0.4%, crush values 5, mass loss
1.2, apparent density 2800kg/m3, bulk density 1700kg/m3, voidage 24%.The foaming agent include following raw material into
Point：9 parts of neopelex, 16.5 parts of saponin solution, 5 parts of polyethylene glycol, 15 parts of carboxymethyl cellulose, 55 parts of water；Institute
The foaming agent preparation method stated is：With stirring, heating, cooling system normal pressure stainless steel cauldron in add in the weight
The neopelex of component and saponin solution, are sufficiently stirred, are uniformly dissolved, and heating, temperature is 47.5 DEG C, is stirred to react
25min then heats to 65 DEG C, is slowly added to add in polyethylene glycol, solution viscosity can be made to have apparent rising, can be very
Slow down the drain age velocity of foam inside well, so as to materially increase foam legal person stability in solution, work as reaction
Solution reaction in container is complete, adds in the carboxymethyl cellulose and water of the composition by weight, is stirred to react 1.5h, continues to heat up
To 75 DEG C, 2.5h is stirred to react, is cooled to room temperature to get to the foaming agent.The sound insulation agent is activated carbon/calcium carbonate
Composite nano-powder；The activated carbon/calcium carbonate nano composite granule preparation method is：Prepare 0.5mol/L's respectively first
The calcium chloride solution of sodium carbonate liquor and 0.5mol/L, dispensing molar ratio are 1:1.35, activated carbon is ground into fine powder, crosses 350
Mesh sieves, then by sodium carbonate liquor and activated carbon fine powder according to 20:3 mass ratio mixing, adds 0.075 times of its mixing quality
Fatty acid sorbitan is uniformly mixed, and is warming up to 75 DEG C, and 25 DEG C are down to after maintaining 3h, adds in calcium chloride solution reaction, Na2CO3+
CaCl2=2NaCl+CaCO3, with 900rpm rotating speeds stir to get calcium carbonate dipping activated carbon, then by obtained mixing slurry
Liquid by ball milling, centrifugation, it is dry after, it is 150nm to get to the activity to be crushed to grain size using nano grinder
Charcoal/calcium carbonate nano composite granule.
Wherein, the polypropylene fibre mainly includes following component：85 parts of acrylic resin raw material, 3.5 parts of coupling agent,
4.5 parts of dispersant, 2.5 parts of fire retardant, 4.5 parts of coloring agent；The preparation method includes the following steps：
A. it crushes machine using synthetic resin to crush acrylic resin raw material, the acrylic resin feedstock grade is injection
Grade, fusing point are more than 165 DEG C, and the acrylic resin melt index is 27.5g/10min, and it is to be that the synthetic resin, which crushes machine,
For system during crushing material, low-temperature receiver forms a closed circuit circulatory system, and the energy is made to be fully used, and saves energy consumption, makes
By the use of liquid nitrogen as abrasive media, realization ultralow temperature crushes, explosion-proof, the resultant effects such as anti-oxidation of material, the low-temperature receiver temperature of crushing
It is subzero 20 DEG C to spend, and smashing fineness is 100 mesh, then will obtain acrylic resin fine powder and pour into heatable agitator tank, and stir
Speed is mixed as 240r/min, drying temperature is 110 DEG C, and the dry duration is 3h, makes its moisture less than 1%, spare；
B. to adding in the coupling agent of the weight ratio, dispersant, fire-retardant in dried acrylic resin raw material fine powder
Agent, coloring agent, the coloring agent be phthalocyanine green, molecule be it is highly stable, have well it is alkaline-resisting, acid, not with it is molten
Agent is reacted, and has the ability of very strong resistance heat and ultraviolet radiation.Mechanical agitation mixing is carried out using mixed at high speed blender, first
2.5h is stirred with the rotating speed of 270r/min, then 22.5min is stirred with the rotating speed of 1100r/min, control whipping temp 90 DEG C it
Between, various additives is made to be uniformly mixed obtained mixture with acrylic resin raw material fine powder；
C. mixture by response type double screw extruder melted, squeezed, 240 DEG C of melting temperature, extrusion temperature
It it is 230 DEG C, the material after melt extruded carries out spinneret through spinning pack, and the aperture of spinning pack is 0.4mm, is accessed after spinneret cold
Air cooling, cold wind temperature are 25 DEG C, cold air blast velocity 0.75m/min, make melt fiber temperature after cooling at 25 DEG C；
D. melt fiber after cooling is stretched by 70 DEG C of hot-rolling, draw ratio is 2.25 times, then using scale
Cutting machine is cut, and control length is in 1000mm, boundling；
E. the melt fiber after boundling is subjected to oil bath, temperature is 100 DEG C, and oil bath length is 3.5m, during oil bath
Carry out drawing-off, draw ratio 1:1.5, the oil bath is dimethicone, has heat resistance, cold resistance, viscosity with temperature
Change small, water proofing property, surface tension are small, thermal conductivity, physiological inertia, the chemical stability having had, the melt fiber after oil bath
By steam, anxiety, relaxation heat setting, steam chest temperature is 110 DEG C, and nervous heat setting temperature is 140 DEG C, relaxation heat setting temperature
It is 120 DEG C to spend, and the relaxation heat setting time is 25 minutes, cuts into the polypropylene fibre of 200mm length；
F. the polypropylene fibre of 200mm length is handled using Surface Treatment with Plasma machine, using allylamine etc. from
Subprocessing, 75 μm, processing time 45min of thickness of surface attachment, makes allylamine form polymer by plasma state, in polypropylene
Contain a large amount of level-one amine, a small amount of two level, tertiary amine and imines, Jing Deng functional groups in the coating that fiber surface is formed, also
The unsaturated functional groups such as CO, CN also generate a small amount of carbonyl, amide, ether, carboxyl functional group, make fiber after being combined with air
Interfacial adhesion makes moderate progress, and improves surface adhesion force；
G. room temperature will be cooled to after surface treatment, be cut with cutter, length range 55mm, packed, obtain
The polypropylene fibre.
Wherein, the coupling agent is titanate coupling agent TMC-311, and the shock resistance that this product can improve composite material is strong
Degree, mobility, for inorganic filler and the coupling of organic resin, can increase its waterproof, fire prevention, anti-corrosion ability.The dispersion
Agent is Sodium Polyacrylate-allyl alcoholic solution, and preparation method is：By sodium hydrogensulfite and water according to 1:25 volume ratio mixing,
Stirring and dissolving is heated to 65 DEG C, starts that the mixture of acrylic acid and allyl alcohol is added dropwise, the volume ratio of mixing is 1:3, it is total to add in
It is 7.5% to measure, and then adds the aqueous solution of 25% ammonium persulfate, and subsequent continuous insulation reaction is added dropwise, and then cooling down is extremely
35 DEG C, pH value is neutralized to as 7.5 to get to Sodium Polyacrylate-allyl alcohol of thick low molecular weight with sodium hydrate aqueous solution
Solution.The fire retardant mixes generation esterification with ethylene glycol for methyl orthophosphoric acid and is made, wherein methyl orthophosphoric acid and ethylene glycol
Molal volume ratio be 5：4.The fine aggregate refers to natural river sand, fineness modulus 3.5, apparent density 2650kg/m3, accumulation
Density 1500kg/m3, clay content 4%, water content 0.3%, mica content 3%, sulfate and sulfide content 1.5%, other light objects
Matter content 0.8%.The high efficiency water reducing agent performance indicator is：PH value 8, water-reducing rate 27.5%, cement mortar flowing velocity 200mm,
28d shrinkage ratios（%）100, compressive strength rate (%) R7=150, R28=120.
Embodiment 3：
A kind of polypropylene fibre boulder concrete of sound insulation environmental protection, the concrete mainly include following component：Cobble
1300 parts, 25 parts of foaming agent, 18 parts of sound insulation agent, 1.5 parts of polypropylene fibre, 350 parts of cement, 850 parts of fine aggregate, high efficiency water reducing agent
1.8 parts, 200 parts of water, the preparation method are：First by the fine aggregate of the composition by weight, cement, cobble, foaming agent, sound insulation
Agent, high efficiency water reducing agent are put into mandatory blender, and then the polypropylene fibre of the composition by weight is scatter with hand, are added in
Into blender, fine aggregate, cement, cobble, foaming agent, sound insulation agent, high efficiency water reducing agent, polypropylene fibre dry mixing 3 minutes are first allowed
Left and right, then adds water wet-mixing 3 minutes, obtains the polypropylene fibre boulder concrete of the sound insulation environmental protection.
Wherein, the cobble particle size range is 30mm, with quality is hard, durability is good, clean surface, clay content
0.8%, clod content 0.5%, elongated particles 1.5%, sulfate and sulfide content 0.5%, crush values 5, mass loss 1.2,
Apparent density 2800kg/m3, bulk density 1700kg/m3, voidage 25%.The foaming agent includes following material composition：Ten
12 parts of dialkyl benzene sulfonic acids sodium, 18 parts of saponin solution, 6 parts of polyethylene glycol, 18 parts of carboxymethyl cellulose, 65 parts of water；The hair
Infusion preparation method is：With stirring, heating, cooling system normal pressure stainless steel cauldron in add in the composition by weight
Neopelex and saponin solution, are sufficiently stirred, are uniformly dissolved, and heating, temperature is 50 DEG C, is stirred to react 30min, so
After be warming up to 70 DEG C, be slowly added to add in polyethylene glycol, solution viscosity can be made to have apparent rising, can be slowed down well
The drain age velocity of foam inside, so as to materially increase foam legal person stability in solution, when in reaction vessel
Solution reaction is complete, adds in the carboxymethyl cellulose and water of the composition by weight, is stirred to react 2h, is continuously heating to 80 DEG C, stirs
Reaction 3h is mixed, is cooled to room temperature to get to the foaming agent.The sound insulation agent is activated carbon/calcium carbonate nano composite powder
Body；The activated carbon/calcium carbonate nano composite granule preparation method is：Prepare the sodium carbonate liquor of 0.5mol/L respectively first
With the calcium chloride solution of 0.5mol/L, dispensing molar ratio is 1:1:5, activated carbon is ground into fine powder, crosses 400 mesh sieve, then will
Sodium carbonate liquor is with activated carbon fine powder according to 20:The fatty acid sorbitan of 0.1 times of its mixing quality is added in 3 mass ratio mixing
It is uniformly mixed, is warming up to 80 DEG C, 25 DEG C are down to after maintaining 4h, add in calcium chloride solution reaction, Na2CO3+CaCl2=2NaCl+
CaCO3, with 1000rpm rotating speeds stir to get calcium carbonate dipping activated carbon, then by obtained mixed serum by ball milling,
Centrifuge, it is dry after, it is 200nm to get to the activated carbon/calcium carbonate nano to be crushed to grain size using nano grinder
Composite granule.
Wherein, the polypropylene fibre mainly includes following component：90 parts of acrylic resin raw material, 5 parts of coupling agent, point
6 parts of powder, 3.5 parts of fire retardant, 5.5 parts of coloring agent；The preparation method includes the following steps：
A. it crushes machine using synthetic resin to crush acrylic resin raw material, the acrylic resin feedstock grade is injection
Grade, fusing point are more than 165 DEG C, and the acrylic resin melt index is 50g/10min, and it is system that the synthetic resin, which crushes machine,
During crushing material, low-temperature receiver forms a closed circuit circulatory system, and the energy is made to be fully used, and saves energy consumption, uses
Liquid nitrogen is as abrasive media, and realization ultralow temperature crushes, explosion-proof, the resultant effects such as anti-oxidation of material, the sink temperature of crushing
It it is subzero 20 DEG C, smashing fineness is 120 mesh, then will obtain acrylic resin fine powder and pour into heatable agitator tank, is stirred
Speed is 300r/min, and drying temperature is 120 DEG C, and the dry duration is 5h, makes its moisture less than 1%, spare；
B. to adding in the coupling agent of the weight ratio, dispersant, fire-retardant in dried acrylic resin raw material fine powder
Agent, coloring agent, the coloring agent be phthalocyanine green, molecule be it is highly stable, have well it is alkaline-resisting, acid, not with it is molten
Agent is reacted, and has the ability of very strong resistance heat and ultraviolet radiation.Mechanical agitation mixing is carried out using mixed at high speed blender, first
3h is stirred, then stir 30min with the rotating speed of 1200r/min with the rotating speed of 300r/min, controls whipping temp between 100 DEG C,
Various additives is made to be uniformly mixed obtained mixture with acrylic resin raw material fine powder；
C. mixture by response type double screw extruder melted, squeezed, 200 DEG C of melting temperature, extrusion temperature
It it is 240 DEG C, the material after melt extruded carries out spinneret through spinning pack, and the aperture of spinning pack is 0.5mm, is accessed after spinneret cold
Air cooling, cold wind temperature are 30 DEG C, cold air blast velocity 1m/min, make melt fiber temperature after cooling at 30 DEG C；
D. melt fiber after cooling is stretched by 90 DEG C of hot-rolling, draw ratio is 3.0 times, is then cut using scale
Cutting mill is cut, and control length is in 1000mm, boundling；
E. by after boundling melt fiber carry out oil bath, temperature be 110 DEG C, oil bath length be 5m, during oil bath into
Row drawing-off, draw ratio 1:1.5, the oil bath is dimethicone, and there is heat resistance, cold resistance, viscosity to become with temperature
Change small, water proofing property, surface tension are small, and thermal conductivity, physiological inertia, the chemical stability having had, the melt fiber after oil bath are led to
Steam, anxiety, relaxation heat setting are crossed, steam chest temperature is 120 DEG C, and nervous heat setting temperature is 150 DEG C, relaxation heat setting temperature
It it is 130 DEG C, the relaxation heat setting time is 30 minutes, cuts into the polypropylene fibre of 200mm length；
F. the polypropylene fibre of 200mm length is handled using Surface Treatment with Plasma machine, using allylamine etc. from
Subprocessing, 100 μm, processing time 60min of thickness of surface attachment, makes allylamine form polymer by plasma state, poly- third
Containing a large amount of level-one amine, a small amount of two level, tertiary amine and imines, Jing Deng functional groups in the coating that alkene fiber surface is formed, go back
There are the unsaturated functional groups such as CO, CN, a small amount of carbonyl, amide, ether, carboxyl functional group are also generated after being combined with air, makes fiber
Interfacial adhesion make moderate progress, improve surface adhesion force；
G. room temperature will be cooled to after surface treatment, be cut with cutter, length range 60mm, packed, obtain
The polypropylene fibre.
Wherein, the coupling agent is titanate coupling agent TMC-311, and the shock resistance that this product can improve composite material is strong
Degree, mobility, for inorganic filler and the coupling of organic resin, can increase its waterproof, fire prevention, anti-corrosion ability.The dispersion
Agent is Sodium Polyacrylate-allyl alcoholic solution, and preparation method is：By sodium hydrogensulfite and water according to 1:30 volume ratio mixing,
Stirring and dissolving is heated to 70 DEG C, starts that the mixture of acrylic acid and allyl alcohol is added dropwise, the volume ratio of mixing is 1:3, it is total to add in
It is 10% to measure, and then adds the aqueous solution of 30% ammonium persulfate, subsequent continuous insulation reaction is added dropwise, then cooling down to 40
DEG C, pH value is neutralized to as 8 to get to the Sodium Polyacrylate of thick low molecular weight-allyl alcoholic solution with sodium hydrate aqueous solution.
The fire retardant mixes generation esterification with ethylene glycol for methyl orthophosphoric acid and is made, wherein mole of methyl orthophosphoric acid and ethylene glycol
Volume ratio is 5：4.The fine aggregate refers to natural river sand, fineness modulus 3.5, apparent density 2650kg/m3, bulk density
1500kg/m3, clay content 5%, water content 0.3%, mica content 3%, sulfate and sulfide content 1.5%, other light materials contain
Amount 0.8%.The high efficiency water reducing agent performance indicator is：PH value 9, water-reducing rate 30%, cement mortar flowing velocity 220mm, 28d contraction
Rate ratio（%）150, compressive strength rate (%) R7=175, R28=130.
Specific experimental method is as follows：
First, concrete soundproof experimental method
1. experimental subjects：This experiment concrete sample size is the hollow cube test specimen of 1000 × 1000 × 1000mm,
Wherein concreting thickness is 200mm, and cube specimen is there are five face is poured, respectively according to embodiment 1, embodiment 2, implementation
The polypropylene fibre boulder concrete and common concrete of the sound insulation environmental protection of the preparation of example 3 are poured, and every group is made 1 and mixes
Solidifying soil test specimen.
2. experimental result：Four hollow cube test specimens are measured to the sound insulation coefficient of material, institute's total using standing-wave-tube method
According to as follows：
3. conclusion：It can be obtained by more than experimental data, concrete prepared by the present invention has compared with common concrete
There is good soundproof effect.
2nd, the test method of concrete crushing strength
1. experimental standard：According to SL352-2006《Concrete for hydraulic structure testing regulations》Provide cube body concrete of 150mm
Test specimen is the standard specimen of compressive strength of concrete, in standard conditions（The temperature of standard curing room should be controlled at 20 DEG C
± 5 DEG C, relative humidity is more than 95% or in 20 DEG C ± 3 DEG C of saturated limewater）Lower maintenance is advised to 28d ages according to experiment
The compression strength of compression strength value, that is, concrete cube of journey detection concrete.If sample dimensions meet maximum aggregate size
Regulation, can be used non-standard test specimen, the compression strength of standard specimen is scaled by conversion coefficient.Experiment is using omnipotent pressure
Force tester, maximum range 2000kN, precision 0.2%.
2. experimental procedure：This experiment concrete sample size be 100 × 100 × 100mm cube specimen, respectively according to
Embodiment 1, embodiment 2, embodiment 3 preparation sound insulation environmental protection polypropylene fibre boulder concrete, then will each implement
Concrete prepared by example is poured, and every group is made three concrete samples, and experimental procedure is as follows：
(1) test specimen pours：
Before concreting, die trial is first cleared up, ensures free from admixture, then machine oil is uniformly brushed in die trial inner surface, it is convenient
Later form removal.The concrete mix being stirred is packed into die trial, multiple spot is slightly filled out, more than die trial height, then die trial is placed in
On shake table, fully vibrate until surface starts bleeding, vibrating time should not be long, concrete disintegration is prevented, after vibrating
Extra concrete is scraped off along die trial edge with trowel, and gives concrete smooth out surface in time.
(2) maintenance of test specimen：
After concrete sample molding, with covered rearing with plastic film surface of test piece, moisture evaporation to be prevented to be lost in, and in temperature it is
Number form removal after standing 24 hours in the case of 20 5 DEG C of scholars.The standard curing room that test specimen after form removal is immediately placed in（20 2 DEG C of scholars,
Humidity is more than 95%）In conserved.
(3) test specimen pressurization is until destroy：
1) after test specimen takes out from maintenance place, by surface of test piece wiped clean, appearance is checked, if test specimen has obvious shortcoming to break
It is bad, it should directly discard.And sample dimensions are measured, and 1mm is accurate to, if actual measurement size and the error of nominal dimension are no more than 1mm,
It is calculated by nominal size.
2) forcing press pressure-bearing plate face is wiped clean；Test specimen is mounted on immediately below the lower platen of testing machine, ensures that test specimen is held
Pressure surface is vertical with specimen molding face.Test specimen center is aligned with testing machine lower platen center, testing machine is started, when top board and test specimen
When close, ball seat is adjusted, makes contact balanced；
3) it in pressure process is tested, adjusts testing machine throttle and keeps continuous load.Testing regulations is provided with 0.3~0.5
The speed of MPa/s is continuous and uniform load.In loading procedure, the concrete loading velocity that water-cement ratio is 0.50 controls for this experiment
In 0.4 MPa/s or so；The concrete loading velocity that water-cement ratio is 0.30 is controlled in 0.5 MPa/s or so.
4) when test specimen starts drastically to deform, when being destroyed close to structure, stop Adjustment Tests machine oil door, until concrete is broken
It is bad.Then loading terminates, and records failing load.
3. result of the test calculates
Compressive strength of concrete should be calculated as follows（It is accurate to 0.1MPa）：
In formula--- compressive strength of concrete,；
--- test specimen failing load,；
--- test specimen bearing area,；
This experiment is every group of 3 test specimen, using the arithmetic mean of instantaneous value of 9 test specimens surveyed as the experiment knot of this group of test specimen
Fruit.One of maximum value or minimum value in three test piece intensities, the difference of allowing with median is ± 15%, if beyond this
A boundary, then the maximum value or minimum value should be taken as median.If there is the difference of 2 measured values and median equal in experiment
It has been more than the 15% of median, then group experiment should be done again.
4. specific experiment and result of the test
This experiment is to be divided into 2000kN in maximum range, and precision is to be tested on 0.2% omnipotent pressure testing machine.2
The concrete cube test specimen of a water-cement ratio series is in 7d, 28d, as shown in the table with compression strength during 90d ages.
| Concrete type | 7d compression strength values (MPa) | 28d compression strength values (MPa) | 90d compression strength values (MPa) | Remarks |
| Embodiment 1 | 28.63 | 42.21 | 48.68 | |
| Embodiment 2 | 30.54 | 43.68 | 50.95 | |
| Embodiment 3 | 29.52 | 40.98 | 49.02 |
3rd, the test method of concrete flexural strength
1. an experiment uses cube specimen of the length of side for 150 × 150 × 150mm, respectively according to embodiment 1, embodiment
2nd, the polypropylene fibre boulder concrete of the sound insulation environmental protection of the preparation of embodiment 3, the concrete for then preparing each embodiment
It is poured, every group is made three concrete samples, and casting method is identical with compression strength.
2. test procedure is as follows：
(1) after test specimen takes out from maintenance place, by surface of test piece wiped clean, appearance is checked, if test specimen has obvious shortcoming
It destroys, should directly discard.And sample dimensions are measured, and 1mm is accurate to, if actual measurement size and the error of nominal dimension are no more than 1mm,
Then calculated by nominal size.The accurate location of bearing and load(ing) point is marked on test specimen with pencil.
(2) according to code requirement adjustment loading device and support position, first semicolumn filler strip is mounted on locating rack, is made
It is placed between the upper and lower side bearing plate and test specimen of pressure testing machine, then by test specimen in the bearing plate of pressure testing machine lower end
Heart position, and side during specimen molding is selected as pressure-bearing surface, top surface when direction is perpendicular to specimen molding.Check branch
Seat and ram position, spacing deviation therein are not more than lmm.
(3) after treating all preparations, start pressure testing machine, when loading device and test specimen close to when, adjustment plus
It carries and puts and bearing, make its contact balanced.According to《Concrete for hydraulic structure testing regulations》Regulation, with loading velocity continuous uniform add
It carries.When test specimen is close to when destroying, stopping Adjustment Tests machine oil door until it is destroyed, records load when destroying and destruction
Position.If plane of rupture is appeared in except three branches in the middle part of loading device, which will cancel.
3. experimental result calculates：
Concrete bending strength is calculated as follows and (is accurate to 0.01MPa)：
In formula--- concrete bending strength, MPa；
--- failing load, N；
--- bearing spacing（That is span）, mm；
--- test specimen cross-sectional width, mm；
--- test specimen depth of section, mm.
The calculating of concrete flexural strength should be accurate to 0.01MPa.Using the arithmetic mean of instantaneous value of every group of 3 test specimen measured values as
The result of the test value of this group of test specimen.If maximum value or minimum value in three measured values, occur that there are one measured value and medians
Difference more than 15% situation of median, should reject the value, the average value of lower 2 test specimens of remainder is as result of the test.If
The difference of two measured values of maximum value and minimum value and median, 15% more than median, then group experiment should be done again, the group
The result of the test of test specimen is invalid.If plane of rupture is pure by curved section, the test specimen not between three branches in the middle part of loading device
Cancel.
4. specific experiment and result of the test
This experiment determines the boulder concrete test specimens of different polypropylene fibers in 7d, 28 d and 90 d ages
Concrete flexural strength, result of the test are as shown in the table：
| Concrete type | 7d flexural strengths value (MPa) | 28d flexural strengths value (MPa) | 90d flexural strengths value (MPa) | Remarks |
| Embodiment 1 | 4.25 | 5.45 | 6.34 | |
| Embodiment 2 | 4.68 | 5.56 | 6.89 | |
| Embodiment 3 | 4.33 | 5.05 | 6.65 |
Experimental result：As can be seen from the above experimental data, concrete of the invention is in sound insulation environmental protection and mechanical property side
Face has compared with common concrete to have an enormous advantage, and is suitble to marketing application.
Finally it should be noted that：Above example is only to illustrate the technical solution of this practicality sound insulation environmental protection rather than right
It is limited；Although this practicality sound insulation environmental protection is described in detail with reference to the foregoing embodiments, the ordinary skill of this field
Personnel should understand that：It can still modify to the technical solution recorded in previous embodiment or to which part skill
Art feature carries out equivalent replacement；And these modifications or replacement, this practicality sound insulation that it does not separate the essence of the corresponding technical solution
The spirit and scope of the embodiment technical solution of environmental protection.
Claims (7)
1. a kind of polypropylene fibre boulder concrete of sound insulation environmental protection, which is characterized in that the polypropylene of the sound insulation environmental protection is fine
It ties up boulder concrete and includes following component：1200-1300 parts of cobble, 15-25 parts of foaming agent, 12-18 parts of sound insulation agent, polypropylene are fine
1.2-1.5 parts of dimension, 300-350 parts of cement, 750-850 parts of fine aggregate, 1.6-1.8 parts of high efficiency water reducing agent, 150-200 parts of water, institute
The preparation method for stating the polypropylene fibre boulder concrete of sound insulation environmental protection is：First by the fine aggregate, cement, ovum of above-mentioned composition by weight
Stone, foaming agent, sound insulation agent, high efficiency water reducing agent are put into mandatory blender, then by the polypropylene fibre of above-mentioned composition by weight
It is scatter, is added in blender with hand, first allow fine aggregate, cement, cobble, foaming agent, sound insulation agent, high efficiency water reducing agent, poly- third
Alkene fiber dry mixing 3 minutes, then adds water wet-mixing 3 minutes, obtains the polypropylene fibre cobble coagulation of the sound insulation environmental protection
Soil；
The cobble particle size range is 10-30mm, with quality is hard, durability is good, clean surface, clay content 0.5-
0.8%, clod content 0.2-0.5%, elongated particles 1-1.5%, sulfate and sulfide content 0.3-0.5%, crush values
5, mass loss 1.2, apparent density 2800kg/m3, bulk density 1700kg/m3, voidage 23-25%；
The foaming agent includes following material composition：6-12 parts of neopelex, 15-18 parts of saponin solution, poly- second
4-6 parts of glycol, 12-18 parts of carboxymethyl cellulose, 45-65 parts of water；The foaming agent preparation method is：With stirring, plus
The neopelex of above-mentioned composition by weight and saponin solution are added in hot, cooling system normal pressure stainless steel cauldron,
It is sufficiently stirred, is uniformly dissolved, heat, temperature is 45-50 DEG C, is stirred to react 20-30min, then heats to 60-70 DEG C, slowly
Polyethylene glycol is added in, when the solution reaction in reaction vessel is complete, the carboxymethyl cellulose and water of above-mentioned composition by weight is added in, stirs
Reaction 1-2h is mixed, 70-80 DEG C is continuously heating to, is stirred to react 2-3h, is cooled to room temperature to get to the foaming agent；
The sound insulation agent is activated carbon/calcium carbonate nano composite granule；The activated carbon/calcium carbonate nano composite powder system
Preparation Method is：Prepare the sodium carbonate liquor of 0.5mol/L and the calcium chloride solution of 0.5mol/L respectively first, dispensing molar ratio is
1:1.2-1:5, activated carbon is ground into fine powder, crosses 300-400 mesh sieve, then by sodium carbonate liquor and activated carbon fine powder according to
20:3 mass ratio mixing, the fatty acid sorbitan for adding 0.05-0.1 times of its mixing quality are uniformly mixed, and are warming up to 70-80
DEG C, 25 DEG C are down to after maintaining 2-4h, adds in calcium chloride solution reaction, Na2CO3+CaCl2=2NaCl+CaCO3, with 800-
1000rpm rotating speeds stir to get the activated carbon of calcium carbonate dipping, and obtained mixed serum then is passed through ball milling, centrifugation point
From, it is dry after, it is 100-200nm to get multiple to the activated carbon/calcium carbonate nano to be crushed to grain size using nano grinder
Close powder.
2. a kind of polypropylene fibre boulder concrete of sound insulation environmental protection as described in claim 1, which is characterized in that described is poly-
Tacryl mainly includes following component：80-90 parts of acrylic resin raw material, 2-5 parts of coupling agent, 3-6 parts of dispersant, fire retardant
1.5-3.5 part, 3.5-5.5 parts of coloring agent；The preparation method of the polypropylene fibre boulder concrete of the sound insulation environmental protection include with
Lower step：
A. machine being crushed using synthetic resin to crush acrylic resin raw material, the acrylic resin feedstock grade is injection grade,
Fusing point is more than 165 DEG C, and the acrylic resin melt index is 5-50g/10min, and the sink temperature of crushing is subzero 20 DEG C,
Smashing fineness is 80-120 mesh, then will obtain acrylic resin fine powder and pour into heatable agitator tank, mixing speed is
180-300r/min, drying temperature are 100-120 DEG C, and the dry duration is 1-5h, make its moisture less than 1%, spare；
B. the coupling agent for adding in above-mentioned weight ratio, dispersant, fire retardant, dyeing are given in dried acrylic resin raw material fine powder
Agent carries out mechanical agitation mixing using mixed at high speed blender, first with the rotating speed of 240-300r/min stirring 2-3h, then with
The rotating speed stirring 15-30min of 1000-1200r/min, control whipping temp is between 80-100 DEG C；
C. mixture by response type double screw extruder melted, squeezed, 180-200 DEG C of melting temperature, extrusion temperature
It it is 220-240 DEG C, the material after melt extruded carries out spinneret through spinning pack, and the aperture of spinning pack is 0.3-0.5mm, spinneret
After access cold front heavy rain, cold wind temperature is 20-30 DEG C, cold air blast velocity 0.5-1m/min, makes melt fiber temperature after cooling
At 20-30 DEG C；
D. melt fiber after cooling is stretched by 60-90 DEG C of hot-rolling, draw ratio is 1.5-3.0 times, then using fixed
Ruler cutting machine is cut, and control length is in 1000mm, boundling；
E. by after boundling melt fiber carry out oil bath, temperature be 90-110 DEG C, oil bath length be 2-5m, during oil bath into
Row drawing-off, draw ratio 1:1.5；
F. the polypropylene fibre of 200mm length is handled using Surface Treatment with Plasma machine, at allylamine plasma
Reason, 50-100 μm of thickness of surface attachment, processing time 30-60min；
G. room temperature will be cooled to after surface treatment, be cut with cutter, length range 50-60mm, packed, obtain institute
The polypropylene fibre stated.
A kind of 3. polypropylene fibre boulder concrete of sound insulation environmental protection as claimed in claim 2, which is characterized in that the idol
Connection agent is titanate coupling agent TMC-311.
A kind of 4. polypropylene fibre boulder concrete of sound insulation environmental protection as claimed in claim 2, which is characterized in that point
Powder is Sodium Polyacrylate-allyl alcoholic solution, and preparation method is：By sodium hydrogensulfite and water according to 1:The volume ratio of 20-30
Mixing, stirring and dissolving are heated to 60-70 DEG C, start that the mixture of acrylic acid and allyl alcohol is added dropwise, the volume ratio of mixing is 1:
3, total addition is 5-10%, then adds the aqueous solution of 20-30% ammonium persulfates, subsequent continuous insulation reaction is added dropwise,
Then cooling down is to 30-40 DEG C, and it is 7-8 to get to thick low molecular weight to be neutralized to pH value with sodium hydrate aqueous solution
Sodium Polyacrylate-allyl alcoholic solution.
A kind of 5. polypropylene fibre boulder concrete of sound insulation environmental protection as claimed in claim 2, which is characterized in that the resistance
Combustion agent mixes generation esterification with ethylene glycol for methyl orthophosphoric acid and is made, and the molal volume ratio of wherein methyl orthophosphoric acid and ethylene glycol is
5：4.
6. a kind of polypropylene fibre boulder concrete of sound insulation environmental protection as described in claim 1, which is characterized in that described is thin
Aggregate refers to natural river sand, fineness modulus 3.5, apparent density 2650kg/m3, bulk density 1500kg/m3, clay content 3-5%,
Water content 0.3%, mica content 3%, sulfate and sulfide content 1.5%, other lightweight matter in aggregate 0.8%.
A kind of 7. polypropylene fibre boulder concrete of sound insulation environmental protection as described in claim 1, which is characterized in that the height
Imitating water-reducing agent performance indicator is：PH value 7-9, water-reducing rate 25-30%, cement mortar flowing velocity >=180mm, 28d shrinkage ratios
(%)≤150, compressive strength rate (%) R7 >=125, R28 >=110.
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| CN109053069A (en) * | 2018-09-06 | 2018-12-21 | 明光市飞洲新材料有限公司 | A kind of fire resistant environment-friendly new building material and preparation method thereof |
| CN111822080B (en) * | 2020-07-16 | 2021-10-08 | 舟山恒尊预拌混凝土有限公司 | Processing method of high-strength environment-friendly concrete |
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