CN105669077A - Permeable additive for permeable concrete and preparation method of permeable additive - Google Patents
Permeable additive for permeable concrete and preparation method of permeable additive Download PDFInfo
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
- C04B20/06—Expanding clay, perlite, vermiculite or like granular materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland 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
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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Abstract
The invention provides a permeable additive for permeable concrete. The permeable additive is characterized in that the permeable additive contains non-wood plant fibers having the capillary permeable function, and raw materials of the permeable additive are composed of, by weight, 50-70 parts of the non-wood plant fibers, 25-35 parts of cellular materials, 3-5 parts of hydrosol, 0.8-1.2 parts of dispersant, 0.6-1.0 parts of water reducer and 0.5-1.0 parts of an active agent. The non-wood plant fibers serve as the main composition body of the concrete additive, and modification treatment is conducted, so that the porosity, water permeation amount and hydrophilicity of the non-wood plant fibers are improved, when the permeable additive is used for preparing the permeable concrete, no or few coarse aggregate can be used, after the permeable additive and the concrete form a firm entirety, the porosity and water permeation amount of the permeable concrete are improved, meanwhile, strength and abrasion resistance of the concrete are guaranteed, and the permeable additive can be applied to high-loading road concrete such as urban rods and expressways.
Description
Technical field
The present invention relates to technical field of concrete additives, be specifically related to a kind of permeable additive of pervious concrete and preparation method thereof.
Background technology
At the beginning of 21 century, China concrete field technical staff begins one's study application pervious concrete, and in park, the not high region of footpath equivalent-load burden requirement starts progressively to use. Pervious concrete is a kind of coarse porous concrete, is generally adopted greater particle size and gathers materials as skeleton, utilizes cementing material to be wrapped in surface of aggregate and forms skeleton, utilizes the hole that skeleton produces to reach the purpose of infiltration. Owing to pervious concrete needs to ensure enough porous passages, its density of load, wearability are difficult to reach requirement, and therefore existing pervious concrete is mostly applied to the auxiliary road that load is relatively low, hinder the pervious concrete use at urban road and highway. Pervious concrete water penetration and the conflicting problem of intensity, become the bottleneck hindering pervious concrete to utilize on a large scale.
Chinese invention patent application number 201010185569.1 discloses a kind of pervious concrete and preparation method thereof, this invention is as follows by preparation process: first prepare a kind of composite gelled material, its raw material forms and weight percent proportioning is: cement 70～88%, concrete ash 10～30%, latex powder 1～5%, weigh by proportioning raw materials and stir mixing, preparing composite gelled material, standby. Then preparing pervious concrete again, its raw material forms and weight percent proportioning is: above-mentioned composite gelled material 10～25%, Aggregate of recycled concrete 70～85%, water 4～9%; Namely a kind of pervious concrete is obtained after stirring. The coefficient of permeability of this pervious concrete is more than or equal to 2mm/s, but pervious concrete comprcssive strength prepared by this invention, apply limited.
Chinese invention patent application number 201410031765.1 discloses a kind of Sand-free permeable concrete additive and preparation method thereof, this invention provides a kind of Sand-free permeable concrete additive, described additive is made up of the raw material of following weight percentage ratio: flyash 30-50%, ground granulated blast furnace slag 20-30%, wollastonite powder 10-15%, latex powder 3-8%. The preparation method that this invention additionally provides a kind of Sand-free permeable concrete additive, reduces Sand-free permeable concrete additive production cost;Improve the water permeability of Sand-free permeable concrete, but the coarse aggregates such as the flyash of this invention use, ground granulated blast furnace slag and wollastonite powder cause that intensity is still difficult to meet top load road, are served only for the terrace ground in footpath, square and parking lot.
Chinese invention patent application number 201210008468.6 discloses High-strength permeable fiber concrete and preparation method thereof, the kind High-strength permeable fiber concrete of this disclosure of the invention, including cement, additive, water and stone, also include high-strength technical fiber, described high-strength technical fiber is more than the 3% of cement weight, and less than the 8 ‰ of concrete gross weight, the Preparation Method of this invention is common pervious concrete and fiber pervious concrete technology organically to be combined, produce a kind of high intensity, the Novel anti-freezing pervious concrete technology of freeze-thawing resistant, this technology is applied in northern frore area and can be greatly improved construction quality and make the maintenance of road and repair rate significantly lower, but the technical fiber permeable amount owing to adopting is little, reduce the permeable efficiency of pervious concrete.
According to above analysis, it it is mostly the macroscopic void of coarse aggregate formation due to pervious concrete, water penetration and intensity are difficult to balance, cause that current pervious concrete uses scope limited, limit is applicable to light pavement usage (such as footpath, parking lot, park etc.), for large-area concrete road surfaces such as the urban road of top load, highways, it is unable to reach requirement according to the intensity of prior art pervious concrete, wearability, limits the application of pervious concrete wider scope. Therefore, in order to solve pervious concrete water penetration and the conflicting problem of intensity, improve the combination property of pervious concrete so that it is can use in top load road, in the urgent need to a kind of easy to use, pervious concrete specialist additive that intensity, wearability, water permeability are good.
Summary of the invention
For current pervious concrete intensity difference, wear no resistance, bad hydraulic permeability, it is difficult to the defect at urban road and application in highways, the present invention proposes a kind of permeable additive of pervious concrete and preparation method thereof, this concrete permeable additive is with non-wood plant fibre for composition main body, pass through modification, improve the porosity of non-wood plant fibre element, permeable amount and hydrophilic so that it is possess capillary penetrating water function; The permeable additive of the present invention can use no or little coarse aggregate being used for preparing pervious concrete, after forming firm entirety with concrete, while improving pervious concrete porosity and permeable amount, also assures that concrete intensity, wearability, can be applicable to the top load road concrete such as urban road and highway.
The permeable additive of one pervious concrete of the present invention, it is characterised in that the non-wood plant fibre raw material containing capillary penetrating water function, is made up of by weight following component:
Non-wood plant fibre 50-70 part,
Porous material 25-35 part,
Hydrosol 3-5 part,
Dispersant 0.8-1.2 part,
Water reducer 0.6-1.0 part,
Activating agent 0.5-1.0 part,
Specific make step is as follows:
1) non-wood plant fibre that weight portion is 80-90 is disperseed in the homogenizer that temperature is 160-200 DEG C, expands 5-10min, blender rotating speed 300-500rpm;
2) non-wood plant fibre that step 1) is obtained temperature in high-temperature calcination stove be 800-1000 DEG C at the carbonization 0.5-2.0 second, make non-wood plant fibre macropore duct consolidate;
3) by step 2) non-wood plant fibre that obtains joins acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 1-2h activation modification that temperature is 80-100 DEG C, in activation modification process, non-wood plant fibre macropore hole wall introduces abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of non-wood plant fibre;Filter, dry, obtain the non-wood plant fibre with capillary penetrating water function;
4) porous material that the non-wood plant fibre with capillary penetrating water function step 3) obtained and weight portion are 25-35 adds in dispersing mixer, is 50 DEG C-60 DEG C in temperature, and rotating speed is 540rpm-660rpm dispersion mixing 15min-30min; Then spraying weight portion is the hydrosol of 3-5, and with rotating speed for 1000rpm-1200rpm dispersion mixing 3min-5min, makes the gluey hydrosol be entirely coated on modified non-wood plant fibre and porous material surface; It is that 0.5-1.0 activating agent adds by weight portion to be the dispersant of 0.8-1.2, weight portion be 0.6-1.0 water reducer and weight portion again, and continue dispersion mixing 3-5min with rotating speed for 1000rpm-1200rpm, obtain the homodisperse permeable additive of Powdered pervious concrete.
Wherein, described non-wood plant fibre is at least one in cotton fiber, flax fiber, tossa, hemp, stalk fibre, Caulis Sacchari sinensis fiber, and its particle diameter is between 100 microns and 200 microns, and draw ratio is between 10:1 and 30:1.
Wherein said fine porous material is at least one in attapulgite, zeolite, kieselguhr, expanded perlite, expanded vermiculite, and its particle diameter is between 200 orders and 400 orders.
Further, the described hydrosol selects concentration to be the polyvinyl alcohol water solution of 10-20%; Described dispersant selects at least one in sodium hexameta phosphate, sodium tripolyphosphate, sodium lauryl sulphate, polyacrylamide.
Further, described water reducer selects conventional water reducer such as naphthalene water reducer, lignin water reducer, aliphatic water reducing agent, melamine water reducer, polycarboxylate water-reducer.
Further, described activating agent select anion surfactant RCOONa(carboxylate), R-OSO3Na(sulfuric acid), R-SO3Na(sulfonate), R-OPO3Na2At least one in (phosphate ester salt).
The present invention proposes a kind of permeable additive of pervious concrete and preparation method, this concrete Plant fiber's additive is with non-wood plant fibre for composition main body, its raw material sources of non-wood plant fibre are extensive, cheap, renewable, biodegradable, there is good hydrophilic and loose structure; First non-wood plant fibre dispersion is expanded, again through high temperature moment carbonization treatment, the macropore duct of firm non-wood plant fibre, then utilize acetic anhydride to non-wood plant fibre activation modification in 1-acrylic-3-methyl ammonia is for imidazoles, in activation modification process, non-wood plant fibre macropore hole wall introduces abundant micropore canals, and form network pore passage structure with macropore duct, promote the porosity of non-wood plant fibre, permeable amount and hydrophilic, and robust structure so that it is there is capillary penetrating water function; Then again through adding porous material, it is mixed with the permeable additive of pervious concrete, porous material is utilized to strengthen the comprcssive strength of the permeable additive of pervious concrete, while modified non-wood plant fiber improves porosity and the permeable amount of the permeable additive of pervious concrete simultaneously, the toughness of the permeable additive of pervious concrete can be promoted again. After the permeable additive of this pervious concrete and concrete mix and blend, modified non-wood plant fibre and concrete form firm entirety, it is uniformly distributed in xoncrete structure, at inapplicable coarse aggregate or when using coarse aggregate less, not only improve concrete porosity, increase concrete permeable amount, but also ensure that concrete intensity, wearability, it is to avoid common pervious concrete reduces the shortcoming that concrete strength strengthens permeable amount.
The permeable additive application of pervious concrete of the present invention, in pervious concrete, is remarkably improved porosity and the permeable amount of pervious concrete, ensures the intensity of pervious concrete, wearability simultaneously. Concrete additive of the present invention, 425 Portland cements, 50 order fine sands are utilized to make pervious concrete with mass ratio 3:5:5, excellent by detecting its performance, inside concrete after hardening is containing the interconnected pore having more than 25%, coefficient of permeability is more than 10mm/s, comprcssive strength is more than 45MPa, rupture strength, more than 5.2MPa, can be used for the top load road concrete such as urban road and highway.
The permeable additive of a kind of pervious concrete of the present invention and prominent being characterized in that of preparation method:
1, the present invention proposes a kind of permeable additive of pervious concrete, modified cancellated non-wood plant fibre is utilized to have capillary penetrating water function, firm entirety can be formed with concrete, while improving pervious concrete porosity and permeable amount, also assures that concrete intensity, wearability, the top load road concrete such as urban road and highway can be made an addition to.
2, the permeable additive of one pervious concrete of the present invention, production process is brief, and technique is easily-controllable, easy to use, can directly be added in existing concrete and use.
3, the permeable additive of one pervious concrete of the present invention, for concrete, there is high intensity, high-wearing feature, high water-permeability, can be widely used for super expressway, urban road, garden path, footpath, parking lot, park etc. and have engineering and the road of permeable requirement, to alleviate city " heat island phenomenon ", alleviate urban waterlogging, recover urban ecology circulation significant.
Detailed description of the invention
Below by way of detailed description of the invention, the present invention is described in further detail, but this should not being interpreted as, the scope of the present invention is only limitted to Examples below. When without departing from said method thought of the present invention, the various replacements made according to ordinary skill knowledge and customary means or change, should be included in the scope of the present invention.
Embodiment 1
A kind of preparation method of the permeable additive of pervious concrete:
1) hemp and flax fiber that weight portion is 80 are disperseed in the homogenizer that temperature is 160 DEG C, expand 5min, blender rotating speed 300rpm;
2) hemp step 1) obtained and flax fiber temperature in high-temperature calcination stove is carbonization 0.5 second at 800 DEG C, makes hemp and flax fiber macropore duct consolidate;
3) by step 2) hemp that obtains and flax fiber join acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 1h activation modification that temperature is 80 DEG C, in activation modification process, hemp and flax fiber macropore hole wall introduce abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of non-wood plant fibre; Filter, dry, obtain hemp and the flax fiber with capillary penetrating water function;
4) hemp with capillary penetrating water function step 3) obtained and flax fiber and attapulgite and the zeolite that weight portion is 25 add in dispersing mixer, are 50 DEG C in temperature, and rotating speed is 540rpm dispersion mixing 15min; Then spray 10% polyvinyl alcohol that weight portion is 3, and with rotating speed for 1000rpm dispersion mixing 3min, make gluey polyvinyl alcohol be entirely coated on hemp, flax fiber, attapulgite and zeolite surface; Again sodium hexameta phosphate that weight portion is 0.8, weight portion are 0.6 polycarboxylate water-reducer and weight portion is 0.5R-OPO3Na2(phosphate ester salt) activating agent adds, and continues dispersion mixing 3min with rotating speed for 1000rpm, obtains the homodisperse permeable additive of Powdered pervious concrete.
Embodiment 2
A kind of preparation method of the permeable additive of pervious concrete:
1) stalk fibre that weight portion is 90 is disperseed in the homogenizer that temperature is 200 DEG C, expands 10min, blender rotating speed 500rpm;
2) stalk plant fiber step 1) obtained is carbonization 2.0 seconds at 1000 DEG C in temperature, makes non-wood plant fibre macropore duct consolidate;
3) by step 2) stalk fibre that obtains joins acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 2h activation modification that temperature is 100 DEG C, in activation modification process, stalk fibre macropore hole wall introduces abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of stalk fibre; Filter, dry, obtain the stalk fibre with capillary penetrating water function;
4) stalk fibre with capillary penetrating water function step 3) obtained and weight portion are in the kieselguhr addition dispersing mixer of 35, are 60 DEG C in temperature, and rotating speed is 660rpm dispersion mixing 30min; Then spray 20% polyvinyl alcohol that weight portion is 5, and with rotating speed for 1200rpm dispersion mixing 5min, make gluey polyvinyl alcohol be entirely coated on modified straw fiber and kieselguhr surface; Again sodium lauryl sulphate that weight portion is 1.2, weight portion are 1.0 melamine water reducers and weight portion is 1.0R-SO3Na(sulfonate) activating agent addition, and continue dispersion mixing 5min with rotating speed for 1200rpm, obtain the homodisperse permeable additive of Powdered pervious concrete.
Embodiment 3
A kind of preparation method of the permeable additive of pervious concrete:
1) cotton fiber and tossa that weight portion is 84 are disperseed in the homogenizer that temperature is 180 DEG C, expand 6min, blender rotating speed 360rpm;
2) cotton fiber step 1) obtained and tossa are carbonization 1.0 seconds at 900 DEG C in temperature, make cotton fiber and tossa macropore duct consolidate;
3) by step 2) cotton fiber that obtains and tossa join acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 1.5h activation modification that temperature is 85 DEG C, in activation modification process, cotton fiber and tossa macropore hole wall introduce abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of cotton fiber and tossa; Filter, dry, obtain cotton fiber and the tossa with capillary penetrating water function;
4) cotton fiber with capillary penetrating water function step 3) obtained and tossa and the expanded perlite that weight portion is 30 add in dispersing mixer, are 56 DEG C in temperature, and rotating speed is 600rpm dispersion mixing 20min; Then spray the polyvinyl alcohol of weight portion is 4 16%, and with rotating speed for 1100rpm dispersion mixing 4min, make gluey polyvinyl alcohol be entirely coated on modified cotton fiber, tossa and expanded perlite surface; Be 0.8 naphthalene water reducer and lignin water reducer and weight portion by polyacrylamide that weight portion is 1.0, weight portion again it being 0.6RCOONa(carboxylate) activating agent adds, and continue dispersion mixing 4min with rotating speed for 1100rpm, obtain the homodisperse permeable additive of Powdered pervious concrete.
Embodiment 4
A kind of preparation method of the permeable additive of pervious concrete:
1) Caulis Sacchari sinensis fiber and flax fiber that weight portion is 88 are disperseed in the homogenizer that temperature is 160 DEG C, expand 8min, blender rotating speed 420rpm;
2) Caulis Sacchari sinensis fiber step 1) obtained and flax fiber are carbonization 1.5 seconds at 800 DEG C in temperature, make Caulis Sacchari sinensis fiber and flax fiber macropore duct consolidate;
3) by step 2) Caulis Sacchari sinensis fiber that obtains and flax fiber join acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 1.5h activation modification that temperature is 85 DEG C, in activation modification process, Caulis Sacchari sinensis fiber and flax fiber macropore hole wall introduce abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of Caulis Sacchari sinensis fiber and flax fiber; Filter, dry, obtain Caulis Sacchari sinensis fiber and the flax fiber with capillary penetrating water function;
4) Caulis Sacchari sinensis fiber with capillary penetrating water function step 3) obtained and flax fiber and the expanded vermiculite that weight portion is 28 add in dispersing mixer, are 55 DEG C in temperature, and rotating speed is 600rpm dispersion mixing 25min; Then spray 15% polyvinyl alcohol that weight portion is 5, and with rotating speed for 1000rpmm dispersion mixing 3min, make gluey polyvinyl alcohol be entirely coated on modified Caulis Sacchari sinensis fiber, flax fiber and expanded vermiculite surface; Again sodium tripolyphosphate that weight portion is 0.8 and sodium lauryl sulphate, weight portion are 0.7 aliphatic water reducing agent and weight portion is 0.5R-OSO3Na(sulfuric acid) activating agent addition, and continue dispersion mixing 5min with rotating speed for 1000rpm, obtain the homodisperse permeable additive of Powdered pervious concrete.
Claims (5)
1. the permeable additive of pervious concrete, it is characterised in that: the non-wood plant fibre raw material containing capillary penetrating water function, it is made up of by weight following component:
Non-wood plant fibre 50-70 part,
Porous material 25-35 part,
Hydrosol 3-5 part,
Dispersant 0.8-1.2 part,
Water reducer 0.6-1.0 part,
Activating agent 0.5-1.0 part;
Specific make step is as follows:
1) non-wood plant fibre that weight portion is 80-90 is disperseed in the homogenizer that temperature is 160-200 DEG C, expands 5-10min, blender rotating speed 300-500rpm;
2) non-wood plant fibre that step 1) is obtained temperature in high-temperature calcination stove be 800-1000 DEG C at the carbonization 0.5-2.0 second, make non-wood plant fibre macropore duct consolidate;
3) by step 2) non-wood plant fibre that obtains joins acetic anhydride and 1-acrylic-3-methyl ammonia in imidazoles mixed solution, at the lower immersion 1-2h activation modification that temperature is 80-100 DEG C, in activation modification process, non-wood plant fibre macropore hole wall introduces abundant micropore canals, and form network pore passage structure with macropore duct, promote porosity and the permeable amount of non-wood plant fibre; Filter, dry, obtain the non-wood plant fibre with capillary penetrating water function;
4) porous material that the non-wood plant fibre with capillary penetrating water function step 3) obtained and weight portion are 25-35 adds in dispersing mixer, is 50 DEG C-60 DEG C in temperature, and rotating speed is 540rpm-660rpm dispersion mixing 15min-30min; Then spraying weight portion is the hydrosol of 3-5, and with rotating speed for 1000rpm-1200rpm dispersion mixing 3min-5min, makes the gluey hydrosol be entirely coated on modified non-wood plant fibre and porous material surface; It is that 0.5-1.0 activating agent adds by weight portion to be the dispersant of 0.8-1.2, weight portion be 0.6-1.0 water reducer and weight portion again, and continue dispersion mixing 3-5min with rotating speed for 1000rpm-1200rpm, obtain the homodisperse permeable additive of Powdered pervious concrete.
2. a kind of permeable additive of pervious concrete according to claim 1, it is characterized in that: described non-wood plant fibre is at least one in cotton fiber, flax fiber, tossa, hemp, stalk fibre, Caulis Sacchari sinensis fiber, its particle diameter is between 100 microns and 200 microns, and draw ratio is between 10:1 and 30:1.
3. a kind of permeable additive of pervious concrete according to claim 1, it is characterized in that: described fine porous material is at least one in attapulgite, zeolite, kieselguhr, expanded perlite, expanded vermiculite, and its particle diameter is between 200 orders and 400 orders.
4. a kind of permeable additive of pervious concrete according to claim 1, it is characterised in that: the described hydrosol selects concentration to be the polyvinyl alcohol water solution of 10-20%; Described dispersant selects at least one in sodium hexameta phosphate, sodium tripolyphosphate, sodium lauryl sulphate, polyacrylamide; Described water reducer selects conventional water reducer such as naphthalene water reducer, lignin water reducer, aliphatic water reducing agent, melamine water reducer, polycarboxylate water-reducer; Described activating agent select anion surfactant RCOONa(carboxylate), R-OSO3Na(sulfuric acid), R-SO3Na(sulfonate), R-OPO3Na2At least one in (phosphate ester salt).
5. a kind of permeable additive of pervious concrete according to claim 1, it is characterized in that: the permeable additive application of described pervious concrete is in pervious concrete, it is remarkably improved porosity and the permeable amount of pervious concrete, ensures the intensity of pervious concrete, wearability simultaneously.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746884A (en) * | 2016-12-21 | 2017-05-31 | 深圳市嘉达高科产业发展有限公司 | Pervious concrete reinforcing agent and preparation method thereof |
| CN107529527A (en) * | 2017-08-16 | 2018-01-02 | 北京海绵环境科技有限公司 | A kind of powdered pervious concrete reinforcing agent and preparation method thereof |
| CN107601996A (en) * | 2017-10-24 | 2018-01-19 | 北京巨弘科技有限公司 | A kind of cementing agent for improving permeable resistance to terrace material intensity and preparation method thereof |
| CN107739191A (en) * | 2017-10-06 | 2018-02-27 | 武乡县泓晨万聚环保科技有限公司 | The efficient water storage permeable fired brick of additive and high-strength light, the plate of agglomerated material |
| CN107879699A (en) * | 2016-09-29 | 2018-04-06 | 桂林洁宇环保科技有限责任公司 | A kind of permeable concrete external application additive |
| CN107938464A (en) * | 2017-10-20 | 2018-04-20 | 四川大学 | A kind of hollow type lightweight purification shell concrete component and preparation method thereof |
| CN108069643A (en) * | 2017-11-29 | 2018-05-25 | 贵州省材料产业技术研究院 | Using method of the water-soluble granular as the circulation high permeability rate terrace of material preparation |
| CN108409249A (en) * | 2018-04-23 | 2018-08-17 | 石磊 | A kind of preparation method of resistance to compression water-permeable brick |
| CN108529985A (en) * | 2018-05-21 | 2018-09-14 | 李建州 | A kind of preparation method of construction of the highway pervious concrete |
| CN108585578A (en) * | 2018-05-14 | 2018-09-28 | 厦门理工学院 | A kind of high intensity pervious concrete additive and preparation method thereof |
| CN108706930A (en) * | 2018-05-30 | 2018-10-26 | 周晓东 | A kind of preparation method of permeable skid brick |
| CN109467363A (en) * | 2018-12-11 | 2019-03-15 | 青岛鑫岩建材有限公司 | A kind of high-strength water-permeable concrete |
| CN109721293A (en) * | 2019-01-30 | 2019-05-07 | 沈阳炳恒科技有限公司 | One kind is from the anti-surface layer ponding highway concrete of permeable |
| CN112573878A (en) * | 2020-12-25 | 2021-03-30 | 北京金隅混凝土有限公司 | Colored water-permeable concrete and preparation method thereof |
| CN114702268A (en) * | 2021-12-27 | 2022-07-05 | 山东坊能新动能科学研究院有限公司 | Modified biological fiber reinforced porous water permeable material for sponge city construction and preparation method thereof |
| CN115231868A (en) * | 2022-06-21 | 2022-10-25 | 宝鸡市东大洋混凝土有限公司 | Anti-cracking and anti-corrosion C30 concrete and preparation method thereof |
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| CN103641374A (en) * | 2013-11-26 | 2014-03-19 | 成都新柯力化工科技有限公司 | Pervious concrete additive and preparation method thereof |
| CN104153272A (en) * | 2014-07-25 | 2014-11-19 | 易佳佳 | Road paving material taking soil as main part and preparation method thereof |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107879699A (en) * | 2016-09-29 | 2018-04-06 | 桂林洁宇环保科技有限责任公司 | A kind of permeable concrete external application additive |
| CN106746884A (en) * | 2016-12-21 | 2017-05-31 | 深圳市嘉达高科产业发展有限公司 | Pervious concrete reinforcing agent and preparation method thereof |
| CN107529527A (en) * | 2017-08-16 | 2018-01-02 | 北京海绵环境科技有限公司 | A kind of powdered pervious concrete reinforcing agent and preparation method thereof |
| CN107739191A (en) * | 2017-10-06 | 2018-02-27 | 武乡县泓晨万聚环保科技有限公司 | The efficient water storage permeable fired brick of additive and high-strength light, the plate of agglomerated material |
| CN107938464A (en) * | 2017-10-20 | 2018-04-20 | 四川大学 | A kind of hollow type lightweight purification shell concrete component and preparation method thereof |
| CN107601996A (en) * | 2017-10-24 | 2018-01-19 | 北京巨弘科技有限公司 | A kind of cementing agent for improving permeable resistance to terrace material intensity and preparation method thereof |
| CN108069643A (en) * | 2017-11-29 | 2018-05-25 | 贵州省材料产业技术研究院 | Using method of the water-soluble granular as the circulation high permeability rate terrace of material preparation |
| CN108409249A (en) * | 2018-04-23 | 2018-08-17 | 石磊 | A kind of preparation method of resistance to compression water-permeable brick |
| CN108585578A (en) * | 2018-05-14 | 2018-09-28 | 厦门理工学院 | A kind of high intensity pervious concrete additive and preparation method thereof |
| CN108529985A (en) * | 2018-05-21 | 2018-09-14 | 李建州 | A kind of preparation method of construction of the highway pervious concrete |
| CN108706930A (en) * | 2018-05-30 | 2018-10-26 | 周晓东 | A kind of preparation method of permeable skid brick |
| CN109467363A (en) * | 2018-12-11 | 2019-03-15 | 青岛鑫岩建材有限公司 | A kind of high-strength water-permeable concrete |
| CN109721293A (en) * | 2019-01-30 | 2019-05-07 | 沈阳炳恒科技有限公司 | One kind is from the anti-surface layer ponding highway concrete of permeable |
| CN112573878A (en) * | 2020-12-25 | 2021-03-30 | 北京金隅混凝土有限公司 | Colored water-permeable concrete and preparation method thereof |
| CN114702268A (en) * | 2021-12-27 | 2022-07-05 | 山东坊能新动能科学研究院有限公司 | Modified biological fiber reinforced porous water permeable material for sponge city construction and preparation method thereof |
| CN115231868A (en) * | 2022-06-21 | 2022-10-25 | 宝鸡市东大洋混凝土有限公司 | Anti-cracking and anti-corrosion C30 concrete and preparation method thereof |
| CN115231868B (en) * | 2022-06-21 | 2023-03-14 | 宝鸡市东大洋混凝土有限公司 | Anti-cracking and anti-corrosion C30 concrete and preparation method thereof |
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