CN108275909A - A kind of cement base porous pavement meterial additive and its application - Google Patents
A kind of cement base porous pavement meterial additive and its application Download PDFInfo
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- CN108275909A CN108275909A CN201810128570.7A CN201810128570A CN108275909A CN 108275909 A CN108275909 A CN 108275909A CN 201810128570 A CN201810128570 A CN 201810128570A CN 108275909 A CN108275909 A CN 108275909A
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- Prior art keywords
- porous pavement
- cement base
- base porous
- water
- mixed
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Classifications
-
- 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
- C04B40/0042—Powdery mixtures
-
- 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
-
- 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
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant 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
- C04B2111/40—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
- 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
The present invention provides a kind of cement base porous pavement meterial additives, include the component of following parts by weight：0.5~1.5 part of water-reducing agent, 0.025~0.3 part of thickener, 0.01~0.15 part of retarder, 1~8 part of fiber, 0~5 part of colorant.It will can make its effective drainage porosity >=9.6% in the additive application to cement base porous pavement material, coefficient of permeability is 4.7 × 10‑2Cm/s or more, 7d tensile splitting strength >=3.1MPa, 28d tensile splitting strength >=3.2MPa, Split-tension of Rolled grade is in fts3.5 or more, permeable grade is A grades.
Description
Technical field
The present invention relates to technical field of buildings more particularly to a kind of cement base porous pavement meterial additive and its applications.
Background technology
Porous pavement material can be divided into slug type and baking-free type two major classes by production technology.Though slug type porous pavement material
Right intensity is high, wearability is good, but production technology is complicated, needs high-temperature calcination, and resources and energy consumption is big, and price is high.Baking-free type
Porous pavement material is divided into as two kinds of fundamental types of resin mating-type and cement mating type.Resin base porous pavement material generally with
The organic polymers such as epoxy resin are cementing agent, and such porous pavement material has the spies such as intensity is big, good toughness, wear-resisting property are good
Point；But since using organic polymer as binder, production cost is high, loss of properties on aging.Cement base porous pavement material
Material largely can use industrial solid castoff etc. excellent since raw material cost is low, simple production process, endurance quality are good
Gesture so that cement base porous pavement material becomes the hot spot of research in " sponge city " process of construction, while having wide
Market prospects.
However, cement base porous pavement material because the uniformity of material can be made to be deteriorated in use, cause slurry with
Aggregate Interface wrapping property is deteriorated, and the intensity and water penetration and slurry and the adhesion strength between gathering materials for seriously affecting material become
Difference, and then the durability of material is influenced, the popularization and application of cement base porous pavement material are limited to a certain extent.
Invention content
The purpose of the present invention is to provide a kind of additives that cement base porous pavement materials ' durability can be improved.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical scheme：
A kind of cement base porous pavement meterial additive, includes the component of following parts by weight：
Preferably, the water-reducing agent is poly carboxylic acid series water reducer.
Preferably, the thickener is methylcellulose, hydroxyethylmethylcellulose, carboxymethyl cellulose, polyacrylamide
One or more of amine and methyl cellulose ether.
Preferably, the retarder is one or more of sodium gluconate, citric acid, sucrose and calgon.
Preferably, the fiber is polypropylene fibre, polyacrylonitrile fibre, vinal, glass fibre and the Black Warrior
One or more of rock fiber.
Preferably, the colorant is iron oxide series colorant.
The present invention also provides the cement base porous pavement meterial additive answering in cement base porous pavement material
With.
Preferably, the application includes the following steps：
Water-reducing agent, thickener, retarder are mixed with water, obtain mixed material I；
To gather materials, cementitious material is mixed with fiber, obtain mixed material II；
Mixed material I, mixed material II, colorant are mixed with water, obtain cement base porous pavement material mixture.
Preferably, the solid content of the mixed material I is 20%~50%.
Preferably, the mixed material I accounts for the 0.5%~2% of cementitious material quality.
The present invention provides a kind of cement base porous pavement meterial additives, include the component of following parts by weight：Diminishing
0.5~1.5 part of agent, 0.025~0.3 part of thickener, 0.01~0.15 part of retarder, 1~8 part of fiber, 0~5 part of colorant.This
The water-reducing agent invented in the additive provided is being reduced except mixing water amount, can preferably be played point to cement granules
Scattered effect improves the mobility of cement base porous pavement material, improves its working performance；The main function of thickener is to improve
The water-retaining property of cement base porous pavement material and the cohesiveness for improving cement base porous pavement material；Retarder can postpone water
Mud hydration reaction makes it keep plasticity in a long time to extend the setting time of cement base porous pavement material, convenient
Cast, while to the properties in later stage, such as tensile strength, water penetration etc. will not cause harmful effect；The addition of fiber is main
It is to prevent the extension of microcrack during use, improves the tension of cement base porous pavement, cracking resistance, impervious and shock resistance, anti-
Freeze performance.Meanwhile on the basis of the above, also have between cement base porous pavement meterial additive each component of the present invention
Good synergistic effect can improve the new workability for mixing cement base porous pavement material after mixing cement base porous pavement material,
The tensile splitting strength of cement base porous pavement material is significantly improved simultaneously, and then improves its durability.
The present invention also provides application of the additive in cement base porous pavement material.According to specification embodiment
Record, will can make its effective drainage porosity >=9.6% in additive application of the present invention to cement base porous pavement material,
Coefficient of permeability is 4.7 × 10-2Cm/s or more, 7d tensile splitting strength >=3.1MPa, 28d tensile splitting strength >=3.2MPa, split
Tension grade is split in fts3.5 or more, permeable grade is A grades.
Description of the drawings
Fig. 1 is the working condition that porous pavement mixture is prepared in the embodiment of the present invention 1.
Specific implementation mode
The present invention provides a kind of cement base porous pavement meterial additives, include the component of following parts by weight：
In the present invention, if without specified otherwise, all raw material components are well known to the skilled person commercially available
Product.
It counts in parts by weight, cement base porous pavement meterial additive of the present invention includes 20~50 parts of water-reducing agent；
Preferably 0.5~1.5 part, more preferably 0.8~1.2 part.In the present invention, the water-reducing agent is preferably polycarboxylic-acid diminishing
Agent.In an embodiment of the present invention, western card polycarboxylate water-reducer ES-500 is specifically used.
On the basis of the quality of water-reducing agent, cement base porous pavement meterial additive of the present invention include 0.025~
0.3 part of thickener；Preferably 0.05~0.25 part, more preferably 0.1~0.2 part.In the present invention, the thickener is preferably
One kind or several in methylcellulose, hydroxyethylmethylcellulose, carboxymethyl cellulose, polyacrylamide and methyl cellulose ether
Kind.In the present invention, when the thickener be above-mentioned specific choice in it is two or more when, it is not special to the ratio of each substance
Restriction, can mix in any proportion；In the present invention, the thickener is preferably a kind in above-mentioned specific choice.
On the basis of the quality of water-reducing agent, cement base porous pavement meterial additive of the present invention include 0.01~
0.15 part of retarder；Preferably 0.05~0.12 part, more preferably 0.08~0.1 part.In the present invention, the retarder is excellent
It is selected as one or more of sodium gluconate, citric acid, sucrose and calgon.In the present invention, when the retarder
For two or more in above-mentioned specific choice when, there is no special restriction to the ratio of each substance, can mix in any proportion；
In the present invention, the retarder is preferably a kind in above-mentioned specific choice.
On the basis of the quality of water-reducing agent, cement base porous pavement meterial additive of the present invention includes 1~8 part
Fiber；Preferably 2~6 parts, more preferably 3~5 parts.In the present invention, the fiber is preferably polypropylene fibre, polyacrylonitrile
One or more of fiber, vinal, glass fibre and basalt fibre.In the present invention, the length of the fiber
Degree is preferably 8~14mm, more preferably 9~13mm, most preferably 10~12mm.In the present invention, the density of the fiber is excellent
It is selected as 0.8~1.2g/cm3, more preferably 0.9~1.1g/cm3, most preferably 0.95~1.05g/cm3.In the present invention, when
The water-reducing agent be above-mentioned specific choice in it is two or more when, there is no special restriction to the ratio of each substance, can be by arbitrary
Ratio mixes；In the present invention, the water-reducing agent is preferably a kind in above-mentioned specific choice.
On the basis of the quality of water-reducing agent, cement base porous pavement meterial additive of the present invention includes 0~5 part
Colorant；Preferably 1~4 part, more preferably 2~3 parts.In the present invention, the colorant is preferably the coloring of iron oxide series
Agent.In an embodiment of the present invention, iron oxide red is specifically used.
The present invention also provides the cement base porous pavement meterial additive answering in cement base porous pavement material
With.
In the present invention, application of the cement base porous pavement meterial additive in cement base porous pavement material,
Preferably include following steps：
Water-reducing agent, thickener, retarder are mixed with water, obtain mixed material I；
To gather materials, cementitious material is mixed with fiber, obtain mixed material II；
Mixed material I, mixed material II, colorant are mixed with water, obtain cement base porous pavement material mixture.
The present invention preferably mixes water-reducing agent, thickener, retarder with water, obtains mixed material I.In the present invention, institute
The temperature for stating mixing is preferably 25~50 DEG C；In an embodiment of the present invention, the mixing specifically carries out at ambient temperature,
Need not additionally it be heated or cooled.In the present invention, the time of the mixing is preferably 20~60s, more preferably 30~
50s, most preferably 35~45s.In the present invention, the mixing preferably carries out under stirring conditions, and the present invention is stirred described
The rate mixed does not have special restriction, and each component in mixture can be made to be sufficiently mixed.
In the present invention, the solid content of the mixed material I is preferably 20%~50%, and more preferably 25%~45%,
Most preferably 30%~40%.The present invention does not have the additive amount of the water special restriction, can make the mixed material I
Solid content meet above-mentioned requirements.
The present invention will preferably gather materials, gel rubber material is mixed with fiber, obtain mixed material II.With the permeable road of the cement base
On the basis of fiber quality in plane materiel feed additives, the present invention preferably adds 1200~1800 parts and gathers materials, and more preferably 1300
~1600 parts, most preferably 1400~1500 parts.In the present invention, the grain size to gather materials is preferably 1~6mm, and more preferably 2
~5mm, most preferably 2.5~4.5mm.The present invention does not have special restriction for the type gathered materials, using this field skill
Gather materials known to art personnel, it is specific such as limestone aggregate.
In the present invention, the mixed material I preferably accounts for the 0.5%~2% of cementitious material quality, more preferably 0.8
~1.5%, most preferably 1~1.3%.
In the present invention, the cementitious material preferably comprises cement and admixture；The mass ratio of the cement and admixture
Preferably 1：(0.5~2), more preferably 1：(0.75~1.75), most preferably 1：(1~1.5).
In the present invention, the cement is preferably portland cement, can specifically be selected as PO42.5 cement.
In the present invention, the admixture is preferably one or more of slag powders, flyash and slag.In the present invention
In, when the admixture be above-mentioned specific choice in it is two or more when, there is no special restriction to the ratio of each substance, can press
Arbitrary proportion mixes；In the present invention, the admixture is preferably 1~2 kind in above-mentioned specific choice.
In the present invention, when the admixture is the mixture of slag powders and flyash, the slag powders and flyash
Mass ratio be preferably (0.5~3)：1, more preferably (1~2.5)：1, most preferably (1.5~2)：1.
In the present invention, when the admixture is the mixture of slag powders and steel-making slag powder, the slag powders and steel-making slag powder
Mass ratio be preferably (0.5~3)：1, more preferably (1~2.5)：1, most preferably (1.5~2)：1.
In the present invention, when the admixture is the mixture of flyash and steel-making slag powder, the flyash and steel-making slag powder
Mass ratio be preferably (0.5~3)：1, more preferably (1~2.5)：1, most preferably (1.5~2)：1.
In the present invention, described gather materials, the mixing of gel rubber material and fiber, preferably include following steps：
It will gather materials and be mixed with cementitious material, and obtain the mixed material to gather materials with cementitious material；
The mixed material is mixed with fiber, obtains mixed material II.
In the present invention, it is described gather materials preferably be stirred using preceding；The time of the stir process is preferably
10~50s, more preferably 20~40s, most preferably 25~35s；The temperature of the stir process is preferably 25~50 DEG C；At this
In the embodiment of invention, the stir process specifically carries out at ambient temperature, i.e., need not additionally be heated or cooled.This hair
The bright stir speed (S.S.) to the stir process does not have special restriction, and each component in gathering materials can be made to be sufficiently mixed.
In the present invention, the mixing gathered materials with cementitious material preferably carries out under agitation；The stirring when
Between preferably 10~50s, more preferably 20~40s, most preferably 25~35s；The temperature of the stirring is preferably 25~50 DEG C；
In an embodiment of the present invention, the stirring specifically carries out at ambient temperature, i.e., need not additionally be heated or cooled.This hair
The bright rate to the stirring does not have special restriction, and each component in mixture can be made to be sufficiently mixed.
In the present invention, it is described gather materials with the mixing of the mixed material and fiber of cementitious material preferably under agitation into
Row；The time of the stirring is preferably 10~50s, more preferably 20~40s, most preferably 25~35s；The temperature of the stirring
Preferably 25~50 DEG C；In an embodiment of the present invention, the stirring specifically carries out at ambient temperature, i.e., need not be additional
It is heated or cooled.The present invention does not have the rate of the stirring special restriction, and each component in mixture can be made fully mixed
Conjunction.
After obtaining mixed material I, mixed material II, the present invention preferably by obtained mixed material I, mixed material II with
Toner and water mixing, obtain cement base porous pavement material.
In the present invention, on the basis of the quality of mixed material I, the additive amount of the water is preferably 80~120 parts, more excellent
It is selected as 90~110 parts, most preferably 95~100 parts.In the present invention, the water preferably adds at twice.
In the present invention, the mixing of the mixed material I, mixed material II and colorant and water preferably includes following step
Suddenly：
1) mixed material I is mixed with part water；
2) mixed material obtained by the step 1) is mixed with mixed material II, colorant；
3) mixed material obtained by the step 2) is mixed with the water of remainder, obtains the porous pavement material of working condition
Material.
In the present invention, during mixed material I is mixed with part water, the additive amount of the part water is preferably 50~
90 parts, more preferably 60~80 parts, most preferably 65~75 parts.
In the present invention, the mixing of the mixed material I, mixed material II and colorant and water is preferably under agitation
It carries out；The temperature of the stirring is preferably 25~50 DEG C；In an embodiment of the present invention, the stirring is specifically in room temperature condition
Lower progress, i.e., need not additionally be heated or cooled.The present invention does not have the velocity and time of the stirring special restriction, can
The each component in mixture is set to be sufficiently mixed.
Cement base porous pavement meterial additive provided by the invention is described in detail with reference to embodiment, but
It is that they cannot be interpreted as limiting the scope of the present invention.
Embodiment 1
Count in parts by weight, by 1.125 parts of western card polycarboxylate water-reducer ES-500,0.0625 part of sodium carboxymethylcellulose,
0.0625 part of sodium gluconate and 3.75 parts of water are stirred 30s, obtain the mixed material I that solid content is 25%；
Limestone aggregate by 1500 parts of grain sizes in 2.36~4.75mm stirs 20s, and 200 parts of PO42.5R water are then added
Mud, 140 parts of S75 grades of instantly grinding scoria powder, 60 parts of II grade of flyash stir 20~30s, and it is 12mm, density to add 1.2 parts of length
For 0.91g/cm3, 18~45 μm a diameter of, elongation at break be 5%~20% polypropylene fibre stir 40s, mixed
Material II；
It is mixed with mixed material II after 40s is mixed with 60 parts of water in mixed material I, is used in combination 35 parts of water adjustment permeable
The working condition of ground surface material obtains cement base porous pavement material mixture.
The working condition for the porous pavement material being prepared by the present embodiment is as shown in Figure 1, as shown in Figure 1, utilize this
The general light in porous pavement material mixture surface, cohesiveness prepared by the additive of open invention is good, not spillage.
Embodiment 2
By 1.35 portions of western card polycarboxylate water-reducer ES-500,0.09 part of hydroxyethylmethylcellulose, 0.06 portion of sucrose and 4.5
Part water is stirred 35s, obtains the mixed material I that solid content is 25%；
Limestone aggregate by 1500 parts of grain sizes in 2.36~4.75mm stirs 30s, and 200 parts of PO42.5R water are then added
Mud, 200 parts of S75 grades of instantly grinding scoria powder stir 20s, add 2 parts of length be 12mm, density 0.91g/cm3, it is a diameter of 18~
45 μm, the polypropylene fibre that elongation at break is 5%~20% stirring 30s, obtain mixed material II；
It is mixed with II, 2 part of iron oxide red of mixed material after 30s is mixed with 60 parts of water in mixed material I, is used in combination 35 parts
Water adjustment porous pavement material working condition, obtain cement base porous pavement material mixture.
Embodiment 3
By 1.35 portions of western card polycarboxylate water-reducer ES-500,0.09 part of hydroxyethylmethylcellulose, 0.06 portion of sucrose and 4.5
Part water is stirred 30s, obtains the mixed material I that solid content is 25%；
Limestone aggregate by 1500 parts of grain sizes in 2.36~4.75mm stirs 20s, and 200 parts of PO42.5R water are then added
Mud, 140 parts of S75 grades of instantly grinding scoria powder, 60 parts of I grade of steel-making slag powders stir 30s, add that 1.8 parts of length are 12mm, density is
0.91g/cm3, 18~45 μm a diameter of, elongation at break be 5%~20% polypropylene fibre stir 25s, obtain mixture
Material II；
It is mixed with II, 2 part of iron oxide red of mixed material after 30s is mixed with 60 parts of water in mixed material I, is used in combination 35 parts
Water adjustment porous pavement material working condition, obtain cement base porous pavement material mixture.
Embodiment 4
The cement base porous pavement material mixture that Examples 1 to 3 is obtained is added in mold, applies on bed of material surface
The compression of 0.05~0.1MPa is placed on shake table and is molded, and 10~15s of time of vibration is demoulded after 24 hours, at 20 ± 2 DEG C
Under conditions of, permeable pavement brick is made after water-filled boiler protection to regulation age.And according to GB/T25993-2010《Porous pavement
Brick and porous pavement plate》Standard is tested for the property.
It is shown in Table 1 using the performance of permeable pavement brick made from cement base porous pavement material described in Examples 1 to 3.
Table 1：Utilize the performance of permeable pavement brick made from cement base porous pavement material described in Examples 1 to 3
As seen from the data in Table 1, it will can be made to have in additive application of the present invention to cement base porous pavement material
Porosity of=9.6% is imitated, coefficient of permeability is 4.7 × 10-2Cm/s or more, 7d tensile splitting strength >=3.1MPa, 28d Split-tension of Rolled
Intensity >=3.2MPa, Split-tension of Rolled grade is in fts3.5 or more, permeable grade is A grades, improves the permeable road of cement base well
The workability of plane materiel material and its is durable on the basis of the tensile splitting strength grade that ensure that porous pavement material, permeable grade
Performance has also obtained significant raising.
The above is only a preferred embodiment of the present invention, it is not intended to limit the present invention in any form.It should
It points out, for those skilled in the art, under the premise of not departing from inventive principle, can also make several
It improves and wetting, these improvement and wetting also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of cement base porous pavement meterial additive, includes the component of following parts by weight：
2. cement base porous pavement meterial additive as described in claim 1, which is characterized in that the water-reducing agent is polycarboxylic acids
Based water reducer.
3. cement base porous pavement meterial additive as described in claim 1, which is characterized in that the thickener is that methyl is fine
Tie up one or more of element, hydroxyethylmethylcellulose, carboxymethyl cellulose, polyacrylamide and methyl cellulose ether.
4. cement base porous pavement meterial additive as described in claim 1, which is characterized in that the retarder is glucose
One or more of sour sodium, citric acid, sucrose and calgon.
5. cement base porous pavement meterial additive as described in claim 1, which is characterized in that the fiber is that polypropylene is fine
One or more of dimension, polyacrylonitrile fibre, vinal, glass fibre and basalt fibre.
6. cement base porous pavement meterial additive as described in claim 1, which is characterized in that the colorant is iron oxide
Serial colorant.
7. the cement base porous pavement meterial additive described in claim 1~6 any one is in cement base porous pavement material
In application.
8. the use as claimed in claim 7, including the following steps：
Water-reducing agent, thickener, retarder are mixed with water, obtain mixed material I；
To gather materials, cementitious material is mixed with fiber, obtain mixed material II；
Mixed material I, mixed material II, colorant are mixed with water, obtain cement base porous pavement material mixture.
9. application as claimed in claim 8, which is characterized in that the solid content of the mixed material I is 20%~50%.
10. application as claimed in claim 8, which is characterized in that the mixed material I account for cementitious material quality 0.5%~
2%.
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