CN108623252A - It is a kind of using waste ceramic as pervious concrete of aggregate and preparation method thereof - Google Patents
It is a kind of using waste ceramic as pervious concrete of aggregate and preparation method thereof Download PDFInfo
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- CN108623252A CN108623252A CN201810401721.1A CN201810401721A CN108623252A CN 108623252 A CN108623252 A CN 108623252A CN 201810401721 A CN201810401721 A CN 201810401721A CN 108623252 A CN108623252 A CN 108623252A
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- coarse aggregate
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- aggregate
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0856—Supporting frames or structures, e.g. supporting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0862—Adaptations of mixing containers therefor, e.g. use of material, coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/142—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying screw-blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/161—Discharge means, e.g. with intermediate storage of fresh concrete with storage reservoirs for temporarily storing the fresh concrete; Charging or discharging devices therefor
-
- 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
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Dispersion Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Present invention relates particularly to a kind of using waste ceramic as pervious concrete of aggregate and preparation method thereof.Pervious concrete is by water, cement, mixing coarse aggregate and polyvinyl alcohol in mass ratio 0.25~0.5:1:1.9~3.9:0.01~0.02 composition；Preparation process is：Modified waste ceramic coarse aggregate and natural coarse aggregate are mixed by volume, obtain mixing coarse aggregate；It will mixing coarse aggregate and part water mixing；Cement and polyvinyl alcohol is added, adds remaining water, obtains concrete grout；Concrete grout is vibrated and is conserved up to pervious concrete.The process units of pervious concrete includes support device, agitating device and drawing mechanism.The raw material composition of the pervious concrete simply, easily obtains, and the preparation process of pervious concrete is easy, and process units solves the problems, such as that stirring is uneven, productivity is low.
Description
Technical field
The invention belongs to building material technical fields, and in particular to a kind of using waste ceramic as the pervious concrete material of aggregate
Material and preparation method thereof.
Background technology
China abounds with ceramics, ceramics use and produce on rank first place within continuous 10 years.What is produced and use is total
The 45% of the worlds Shuo Zhan.Substantially there are three sources for waste ceramic：First be generated in building trade because building is removed or
The ceramic waste product generated in fitting-up engineering；Second is the discarded porcelain etc. generated in human being's production life；The third is
Ceramics generate during production, transport, use due to firing failure or being crushed.But only a small amount of is discarded at present
Ceramics have carried out recycling, and the overwhelming majority takes the processing mode of simple abandoned piles or burial, and there is very
More drawbacks.
With the quickening of China town and country process, more and more muddy and ruthed lanes have been replaced by be blocked water material by cement, pitch etc.
The road of material paving just.Building trade is dedicated to the enhancing of concrete structural strength and stability, improves the densification of concrete material
Property so that entire city " can not breathe ".In heavy rain season, often there is urban ground ponding, and then lead to urban waterlogging
Phenomenon occurs, the problem of while bringing direct economic loss to national economy, also having gradually appeared " city desertification ", city
Underground water is fewer and fewer.The use of pervious concrete can balance Urban Underground water level, be effectively improved fuel factor, mitigate city
Noisy environment, reduce city overland runoff etc., permeable concrete terrace and road surface can guarantee groundwater level fluctuation normal
In the range of, prevent the problem because caused by cannot normally being fed underground water, can also solve the settlement issues of ground.
Waste ceramic is recycled into regenerative pervious concrete, is to preserve the ecological environment by the demand based on sustainable development
One of effective approach.And intensity that waste ceramic has is low, porosity is high, water absorption rate is big, spininess sheet, adhesive property are bad etc.
Feature is to need the critical problem solved during waste ceramic recycles.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of using waste ceramic as the pervious concrete of aggregate
Material and preparation method thereof.
To achieve the above object, the present invention uses following technical scheme：
It is a kind of using waste ceramic as the pervious concrete of aggregate, the pervious concrete is by water, cement, mixing coarse aggregate and poly- second
Enol in mass ratio 0.25~0.5:1:1.9~3.9:0.01~0.02 composition；The mixing coarse aggregate is thick by being modified waste ceramic
Aggregate and natural coarse aggregate by volume 1:1 composition；The modified waste ceramic coarse aggregate is with Portland cement, waste ceramic
Slurries processing coarse aggregate modified to waste ceramic prepared by powder and water obtains.
Further, the waste ceramic coarse aggregate and the grain size of natural coarse aggregate are 5~16mm.
Further, the median particle diameter of the waste ceramic powder is 5~8 μm.
Further, the pervious concrete by water, cement, mixing coarse aggregate and polyvinyl alcohol in mass ratio be 0.3~
0.4:1:2.1~3.3:0.011~0.017 composition.
The preparation method of above-mentioned pervious concrete, includes the following steps：
Step 1：By waste ceramic cleaning, dry after be crushed, sieve grain size be 5~16mm waste ceramic coarse aggregate and intermediate value
Grain size is 5~8 μm of waste ceramic powder；
Step 2：By Portland cement and waste ceramic powder in mass ratio 6:(3~4) it mixes, mixed-powder is obtained, then by water
The slurries that the ratio of mud is 0.7~1.1 are mixed and made into mixed-powder, waste ceramic coarse aggregate is put into slurries and is impregnated, impregnate 24
It takes out and dries after hour, obtain modified waste ceramic coarse aggregate；
Step 3：It will modified waste ceramic coarse aggregate and natural coarse aggregate by volume 1:1 mixing, obtains mixing coarse aggregate；
Step 4：It is m that coarse aggregate and quality, which will be mixed,w1Water mixing, stand 20~30min, must pre-process mix coarse aggregate；
Step 5：Cement and polyvinyl alcohol are proportionally added into pretreatment mixing coarse aggregate, then mixing adds residue
Quality be mw2Water, stir evenly, obtain concrete grout；The mw1：mw2It is 1:(2~3).
Step 6：Progress machine vibrates after concrete grout is packed into mold, is then conserved to get pervious concrete；Institute
It is 10 seconds to state the time that machine vibrates.
It is above-mentioned a kind of using waste ceramic as the process units of the pervious concrete of aggregate, including support device, agitating device
And drawing mechanism, the support device include holder and two carriers, the holder includes four supporting rods and is laid in branch
Fixed plate above strut, the supporting rod are fixed on the ground by lower margin.Two carriers are located at two in holder
Side, carrier include two supporting rods and the L-shaped loading plate that is laid in above supporting rod, the horizontal ends cloth of the L-shaped loading plate
Equipped with water tank, first motor and the second motor, the water outlet of water tank is laid with water meter, and stirring is laid between two carriers
Device, the agitating device include that charging hopper, stirred tank and agitating paddle, the charging hopper are laid in fixed plate and stirred tank
Between, the stirred tank includes fixing groove and the loose slot that is laid in below fixing groove, the fixing groove and loose slot is opposite sets
It sets, the outlet of the opposite charging hopper in fixing groove top and the outlet of water pipe are laid with feed inlet and water inlet, and the water tank passes through
Water pipe and the water inlet of fixing groove connect.The agitating paddle is laid in the lower part of fixing groove, the output of agitating paddle and first motor
Axis connection, loose slot are laid with drawing mechanism by the output axis connection of shaft and the second motor below loose slot, it is described go out
Expect that device includes discharging hopper, third motor and fixed seat, the top of the discharging hopper is rectangular, lower part is trapezoidal, described
Fixed seat is laid in the lower section of discharging hopper, and fixed seat includes support base and the shock-absorbing spring that is laid in above support base, discharging
The centre of feed hopper bottom is laid with concrete discharge port, and the third motor is laid between fixed seat and concrete discharge port.
Further, the charging hopper includes the first hopper and the second hopper.
Further, the fixing groove and loose slot include curved plate and the semicircle for being laid in curved plate both sides
Baffle is fixedly connected with support plate on the outside of the Semicircular baffle of fixing groove, and the support plate is laid in the vertical of L-shaped loading plate
End, the centre on the Semicircular baffle top of the loose slot offers the first circular hole, is laid between loose slot and L-shaped loading plate
Shaft, the shaft include first rotating shaft and the second shaft, and one end of first rotating shaft and the second shaft penetrates the first circular hole and fixes
It being connected on loose slot, the other end of first rotating shaft passes through the output axis connection of the vertical end and the second motor of L-shaped loading plate, the
The other end of two shafts is laid in the vertical end of L-shaped loading plate, and the side of first circular hole offers semi-circular groove, described
The internal diameter of semi-circular groove is not less than the outer diameter of agitating paddle top chock.
Further, the curved plate inner surface of the loose slot is laid with protrusion, the Semicircular baffle outside of loose slot
Width be less than the width on the inside of the Semicircular baffle of fixing groove, the height on the outside of the Semicircular baffle of loose slot is less than fixing groove
Semicircular baffle on the inside of height, length on the outside of the curved plate of loose slot no more than the curved plate of fixing groove on the inside of
Length.
Further, one end of the agitating paddle passes through the output shaft of the second circular hole and first motor in support plate to connect
It connects, the other end of agitating paddle is laid in the inside of fixing groove, and the agitating paddle is screw agitating paddle.
Compared with prior art, the beneficial effects of the present invention are：
1, waste ceramic powder has pozzolanic activity, by Portland cement and waste ceramic powder in mass ratio 6:(3~4) it mixes,
Mixed-powder is obtained, then soaks the slurries that the ratio of mud made of water and mixed-powder is 0.7~1.1 to waste ceramic coarse aggregate
Bubble, effectively improves the performance of waste ceramic coarse aggregate, improves the compression strength of pervious concrete, compression strength improves
12.26%~47.06%, averagely improve 25.85%.
2, the use of polyvinyl alcohol, can effectively improve the toughness of pervious concrete, and flexural strength improves 8.11%~
33.33%, averagely improve 20.36%.
3, the ratio of mud used in the present invention is 0.25~0.5, and under the conditions of the ratio of mud, the pervious concrete of preparation can
The needs of to meet intensity requirement and different porosities.
4, the intensity that has by waste ceramic is low, porosity is high, water absorption rate is big, spininess sheet, the features such as adhesive property is bad,
During preparing pervious concrete, first waste ceramic coarse aggregate is modified, its performance is made to be improved.In addition modified useless pottery
The preparation process of porcelain coarse aggregate is simple, require no drying and etc., time and cost is greatly saved.
5, the raw material composition of pervious concrete is simple in the present invention, easily obtains, at low cost, the preparation process of pervious concrete
Simplicity, it is easy to operate.
6, water meter is installed in water outlet of water tank, can control the amount for adding water twice, in whipping process, agitating paddle is in motor
Under effect, raw material can be stirred evenly, realize that the raising of quality, stirring terminate, the second motor drives first rotating shaft and second
Shaft rotates, and loose slot can be flipped up more than 90 °, and pour concrete grout therein into discharging hopper, and production effect can be improved
Rate.
7, it is laid with third motor on discharging hopper, and the hopper lower part that discharges is trapezoidal, it can be quicker by concrete grout
Be sent to concrete discharge port.Shock-absorbing spring uses the amplitude for discharge hopper will not be excessive on support base.
Description of the drawings
Fig. 1 is the stereogram of pervious concrete sample A4 in embodiment 3.
Fig. 2 is the permeable design sketch of pervious concrete sample A4 in embodiment 3.
Fig. 3 is the front view of process units in embodiment 7.
Fig. 4 is the side view of process units in embodiment 7.
Fig. 5 is the structural schematic diagram of fixing groove in embodiment 7.
Fig. 6 is the structural schematic diagram of loose slot in embodiment 7.
Fig. 7 is the sectional view of stirred tank in embodiment 7.
Fig. 8 is the structural schematic diagram of screw agitating paddle in embodiment 7.
In attached drawing, 1 is carrier, and 2 be first motor, and 3 be fixing groove, and 5 be the first hopper, and 7 be the second hopper, and 8 be water
Table, 9 be water tank, and 10 be the second motor, and 11 be holder, and 12 be lower margin, and 13 be concrete discharge port, and 14 be loose slot, and 15 be spiral shell
Rod-type agitating paddle, 16 be discharging hopper, and 17 be protrusion, and 18 be L-shaped loading plate, and 19 be curved plate, and 20 be Semicircular baffle, 21
For support plate, 22 be the first circular hole, and 23 be first rotating shaft, and 24 be the second shaft, and 25 be semi-circular groove, and 28 be third motor, 29
It is shock-absorbing spring for support base, 30,31 be feed inlet, and 32 water inlets, 33 be the second circular hole.
Specific implementation mode
Following embodiment is not used to limit protection scope of the present invention for illustrating the present invention.Unless otherwise specified, real
Apply the conventional means that technological means used in example is well known to those skilled in the art.
The preparation of embodiment 1 waste ceramic coarse aggregate and waste ceramic powder
Test material：Useless floor tile, rubble, polyvinyl alcohol 1788, water, 425 Portland cements that grain size is 5~16mm.
It dries after useless floor tile is cleaned, is crushed with jaw crusher, then use the sieve of 5mm and 16mm scales to broken
Tile is sieved to get the waste ceramic coarse aggregate that grain size is 5~16mm.
It is dried after useless floor tile is cleaned, 8h is ground using ball mill, the waste ceramic powder that median particle diameter is 5~8 μm is made.
Embodiment 2 mixes the preparation of coarse aggregate
By Portland cement and waste ceramic powder in mass ratio 6:(3~4) it mixes, mixed-powder is obtained, then by water and mixing
Powder is mixed and made into the slurries of the ratio of mud 0.7~1.1, and waste ceramic coarse aggregate is put into slurries and is impregnated, and is taken after impregnating 24 hours
Go out to dry, obtains modified waste ceramic coarse aggregate；The mass ratio of the waste ceramic coarse aggregate and slurries is 1:2.
Table 1 is modified the different mixture ratio design of waste ceramic coarse aggregate
The natural coarse aggregate of same volume is mixed into waste ceramic coarse aggregate, mixing must compare mixing coarse aggregate；To combination 1~
Mix the natural coarse aggregate of same volume in 6 obtained modified ceramic coarse aggregate of combination, mixing obtains mixing coarse aggregate 1~mixed
Coarse aggregate 6 is closed, the natural coarse aggregate is the rubble that grain size is 5~16mm.The performance of the mixing coarse aggregate of gained is as follows：
Table 2 mixes the performance of coarse aggregate
| Mix coarse aggregate | Apparent density (kg/m3) | Bulk density (kg/m3) | Porosity (%) |
| Mix coarse aggregate 1 | 2535 | 1302 | 48.01 |
| Mix coarse aggregate 2 | 2542 | 1315 | 47.22 |
| Mix coarse aggregate 3 | 2539 | 1311 | 47.65 |
| Mix coarse aggregate 4 | 2536 | 1308 | 47.89 |
| Mix coarse aggregate 5 | 2529 | 1303 | 48.00 |
| Mix coarse aggregate 6 | 2545 | 1316 | 47.06 |
| Comparison mixing coarse aggregate | 2521 | 1295 | 48.66 |
The preparation of 3 pervious concrete of embodiment
Pervious concrete is prepared using the mixing coarse aggregate 6 in embodiment 2.Prepare 1m3Pervious concrete, by the ratio of mud 0.25,
0.30,0.35,0.40,0.45 and 0.50 and goal porosity 15%, 20% and 25% design, it is total to be divided into 18 and match
Composition and division in a proportion designs, and refers to table 3.
It is m that coarse aggregate 6 and quality, which will first be mixed,w1Water mixing, stand 30min, must pre-process mix coarse aggregate；Then will
Cement and polyvinyl alcohol 1788 are proportionally added into pretreatment mixing coarse aggregate, and mixing, then adding remaining quality is
mw2Water, stir evenly, obtain concrete grout.
Then progress machine vibrates after concrete grout being packed into mold, is then placed in water and conserves 28 days to get permeable mixed
Solidifying soil；The time that the machine vibrates is 10 seconds.
The mix-design one of 3 pervious concrete of table
A, it is 15%, 20%, 25% that B, C, which respectively represent goal porosity,；1~6 respectively represent the ratio of mud be 0.25,0.30,
0.35、0.40、0.45、0.50；M in tablec、mg、mw1、mw2、maRespectively represent 1m3Cement in pervious concrete, mixing coarse aggregate 6,
The quality of the water of addition, the quality of the quality and polyvinyl alcohol 1788 of the water added for the second time for the first time, unit kg.
4 comparative example of embodiment
Pervious concrete is prepared using the comparison mixing coarse aggregate in embodiment 2.Preparation method is the same as embodiment 3.
The mix-design two of 4 pervious concrete of table
A, it is 15%, 20%, 25% that B, C, which respectively represent goal porosity,；1'~6' respectively represent the ratio of mud be 0.25,0.30,
0.35、0.40、0.45、0.50；M in tablec、mg、mw1、mw2、maRespectively represent 1m3Cement, comparison mix thick bone in pervious concrete
The quality of material, for the first time quality of the water of addition, for the second time quality and polyvinyl alcohol 1788 of the water of addition, unit kg.
5 comparative example of embodiment
Pervious concrete is prepared using the mixing coarse aggregate 6 in embodiment 2.Prepare 1m3Pervious concrete, by the ratio of mud 0.25,
0.30,0.35,0.40,0.45 and 0.50 and goal porosity 15%, 20% and 25% design, it is total to be divided into 18 and match
Composition and division in a proportion designs, and refers to table 5.
It is m that coarse aggregate and quality, which will first be mixed,w1Water mixing, stand 30min, must pre-process mix coarse aggregate；Then will
Cement is added to mixing in pretreatment mixing coarse aggregate, then adds the water that remaining quality is mw2, stirs evenly, obtain mixed
Solidifying soil paste.
Then progress machine vibrates after concrete grout being packed into mold, is then placed in water and conserves 28 days to get permeable mixed
Solidifying soil；The time that the machine vibrates is 10 seconds.
The mix-design three of 5 pervious concrete of table
A, it is 15%, 20%, 25% that B, C, which respectively represent goal porosity,；1 "~6 " respectively represent the ratio of mud be 0.25,0.30,
0.35、0.40、0.45、0.50；M in tablec、mg、mw1、mw2Respectively represent 1m3Cement in pervious concrete, mixing coarse aggregate 6, the
The quality of the quality of the water once added and the water of second of addition, unit kg.
6 pervious concrete performance measurement of embodiment
Coefficient of permeability (mm/s), test result are measured to the pervious concrete sample of 3~embodiment of embodiment, 5 gained using permeable instrument
It is as follows：
The coefficient of permeability of the different pervious concrete samples of table 6
| Test block is numbered | Coefficient of permeability (mm/s) | Test block is numbered | Coefficient of permeability (mm/s) | Test block is numbered | Coefficient of permeability (mm/s) |
| A1 | 0.96 | B1 | 3.87 | C1 | 4.16 |
| A2 | 0.87 | B2 | 3.47 | C2 | 3.91 |
| A3 | 0.62 | B3 | 3.09 | C3 | 3.74 |
| A4 | 0.58 | B4 | 3.00 | C4 | 3.43 |
| A5 | 0.41 | B5 | 2.87 | C5 | 3.16 |
| A6 | 0.31 | B6 | 2.79 | C6 | 2.89 |
| A1' | 1.00 | B1' | 3.86 | C1' | 4.17 |
| A2' | 0.88 | B2' | 3.60 | C2' | 4.00 |
| A3' | 0.64 | B3' | 3.10 | C3' | 3.85 |
| A4' | 0.59 | B4' | 3.10 | C4' | 3.49 |
| A5' | 0.42 | B5' | 2.97 | C5' | 3.17 |
| A6' | 0.32 | B6' | 2.89 | C6' | 3.00 |
| A1” | 1.01 | B1” | 4.12 | C1” | 4.19 |
| A2” | 0.92 | B2” | 3.47 | C2” | 4.11 |
| A3” | 0.66 | B3” | 3.10 | C3” | 3.85 |
| A4” | 0.60 | B4” | 3.20 | C4” | 3.60 |
| A5” | 0.44 | B5” | 3.12 | C5” | 3.34 |
| A6” | 0.30 | B6” | 2.99 | C6” | 3.01 |
Using pressure-proof and snap-resistent all-in-one machine, flexural strength (MPa) and compression strength (MPa) to the pervious concrete sample of gained carry out
It measures, is as a result shown in Table 7 and table 8 respectively.
The flexural strength of the different pervious concrete samples of table 7
The compression strength of the different pervious concrete samples of table 8
| Number | Compression strength (MPa) | Number | Compression strength (MPa) | Number | Compression strength (MPa) |
| A1 | 11.6 | B1 | 8.7 | C1 | 8.6 |
| A2 | 13.7 | B2 | 15.4 | C2 | 13.7 |
| A3 | 17.4 | B3 | 16.5 | C3 | 12.9 |
| A4 | 19.9 | B4 | 14.2 | C4 | 9.8 |
| A5 | 15.7 | B5 | 10.7 | C5 | 7.5 |
| A6 | 10 | B6 | 8.5 | C6 | 9.8 |
| A1' | 10.6 | B1' | 6.8 | C1' | 6.4 |
| A2' | 11.3 | B2' | 11.1 | C2' | 10.7 |
| A3' | 14.9 | B3' | 13.9 | C3' | 11 |
| A4' | 16.8 | B4' | 10.5 | C4' | 7.1 |
| A5 | 13.4 | B5' | 9.2 | C5' | 5.1 |
| A6' | 7.8 | B6' | 7.5 | C6' | 6.2 |
| A1” | 10.9 | B1” | 7.9 | C1” | 7.9 |
| A2” | 13.2 | B2” | 12.6 | C2” | 12.7 |
| A3” | 15.5 | B3” | 14.4 | C3” | 12.1 |
| A4” | 16.9 | B4” | 14.1 | C4” | 9 |
| A5” | 14.6 | B5” | 10.7 | C5” | 7.4 |
| A6” | 9.5 | B6” | 8 | C6” | 9.2 |
The raw material for preparing of concrete in embodiment 3 includes：Water, cement, mixing coarse aggregate and polyvinyl alcohol, wherein mixing thick bone
Material is mixed by modified waste ceramic coarse aggregate and natural coarse aggregate (rubble).
The raw material for preparing of concrete in embodiment 4 includes：Water, cement, mixing coarse aggregate and polyvinyl alcohol, wherein mixing
Coarse aggregate is mixed by waste ceramic coarse aggregate and natural coarse aggregate (rubble).
The raw material for preparing of concrete in embodiment 5 includes：Water, cement, mixing coarse aggregate, wherein mixing coarse aggregate is by changing
Property waste ceramic coarse aggregate and natural coarse aggregate (rubble) mix.
From the point of view of comparing embodiment 4, in addition to B1', the coefficient of permeability of pervious concrete made from embodiment 3 has reduction, drop
Low ranging from 0.24%~4.00%, averagely reduce by 2.24%；From the point of view of comparing embodiment 4, pervious concrete made from embodiment 3
Compression strength increase, improve 12.26%~47.06%, averagely improve 25.85%, flexural strength also increases,
Maximum improves 10%, averagely improves 4.51%.
From the point of view of comparing embodiment 5, in addition to A6 " and B2 ", the coefficient of permeability of pervious concrete made from embodiment 3 has drop
It is low, 0.32%~8.01% is reduced, averagely reduces by 4.06%；From the point of view of comparing embodiment 4, permeable coagulation made from embodiment 3
The flexural strength of soil increases, and improves 8.11%~33.33%, averagely improves 20.36%, compression strength is also carried
Height improves 0%~22.22%, averagely improves 8.32%.
Embodiment 7
It is a kind of using waste ceramic as the process units of the pervious concrete of aggregate, the process units include support device, stirring
Device and drawing mechanism, the support device include holder 11 and two carriers 1, the holder 11 include four supporting rods and
The fixed plate being laid in above supporting rod, the supporting rod are fixed on the ground by lower margin 12.Two carriers 1 are located at
Both sides in holder 11, carrier 1 include two supporting rods and the L-shaped loading plate 18 being laid in above supporting rod, and the L-shaped is held
The horizontal ends of support plate 18 are laid with water tank 9, first motor 2 and the second motor 10, and the water outlet of water tank 9 is laid with water meter 8.
Agitating device is laid between two carriers 1, the agitating device includes charging hopper, stirred tank and stirring
Paddle, the charging hopper are laid between fixed plate and stirred tank, and charging hopper includes the first hopper 5 and the second hopper 7.It is described
Stirred tank includes fixing groove 3 and the loose slot 14 for being laid in 3 lower section of fixing groove, and the fixing groove 3 and loose slot 14 are oppositely arranged,
The outlet of the opposite charging hopper in 3 top of fixing groove and the outlet of water pipe are laid with feed inlet 31 and water inlet 32, and the water tank 9 is logical
Water pipe is crossed to connect with the water inlet 32 of fixing groove 3.The agitating paddle is laid in the lower part of fixing groove 3, and one end of agitating paddle passes through
The output axis connection of the second circular hole 33 and first motor 2 in support plate 21, the other end of agitating paddle are laid in the interior of fixing groove 3
Side.Fixing groove 3 and loose slot 14 include curved plate 19 and the Semicircular baffle 20 for being laid in 19 both sides of curved plate, are fixed
The outside of the Semicircular baffle 20 of slot 3 is fixedly connected with support plate 21, and the support plate 21 is laid in the vertical of L-shaped loading plate 18
End, the centre on 20 top of Semicircular baffle of the loose slot 14 offers the first circular hole 22, loose slot 14 and L-shaped loading plate 18
Between be laid with shaft, the shaft includes first rotating shaft 23 and the second shaft 24, the one of first rotating shaft 23 and the second shaft 24
End penetrates the first circular hole 22 and is fixedly connected on loose slot 14, and the other end of first rotating shaft 23 passes through the vertical of L-shaped loading plate 18
The output axis connection at end and the second motor 10, the other end of the second shaft 24 is laid in the vertical end of L-shaped loading plate 18, described
The side of first circular hole 22 offers semi-circular groove 25, and the internal diameter of the semi-circular groove 25 is outer not less than agitating paddle top chock
Diameter.19 inner surface of curved plate of the loose slot 14 is laid with protrusion 17, the width in 20 outside of Semicircular baffle of loose slot 14
Degree is less than the width of 20 inside of Semicircular baffle of fixing groove 3, and the height in 20 outside of Semicircular baffle of loose slot 14 is less than solid
Determine the height of 20 inside of Semicircular baffle of slot 3, the length in 19 outside of curved plate of loose slot 14 is not more than the arc of fixing groove 3
The length of 19 inside of shape bottom plate.The agitating paddle is screw agitating paddle 15.
The lower section of loose slot 14 is laid with drawing mechanism, and the drawing mechanism includes discharging hopper 16,28 and of third motor
Fixed seat, the discharging hopper 16 top is rectangular, lower part is trapezoidal, the fixed seat is laid under discharging hopper 16
Side, fixed seat include support base 29 and the shock-absorbing spring 30 for being laid in 29 top of support base, the intermediate cloth of 16 bottom of discharging hopper
Equipped with concrete discharge port 13, the third motor 28 is laid between fixed seat and concrete discharge port 13.
Operation principle：It needs to calculate required modification waste ceramic coarse aggregate according to proportioning, natural coarse aggregate, cement, gather
The amount of vinyl alcohol 1788 and water, powers on, and the modification that same volume is separately added into the first hopper 5 and the second hopper 7 is useless
Ceramic coarse aggregate and natural coarse aggregate, are added water in water tank 9, and when charging, the second motor 10 drives loose slot 14 to be rotated up,
Rotational angle is no more than 45 °, and first motor 2 drives screw agitating paddle 15 to rotate, 15 direction of motion of screw agitating paddle and work
Dynamic 14 direction of motion of slot stands 20~30min on the contrary, after stirring.
Then it is separately added into cement and polyvinyl alcohol 1788 into the first hopper 5 and the second hopper 7 again, when charging, starts
First motor 2 and the second motor 10, loose slot 14 are rotated up, and screw agitating paddle 15 rotates, and screw agitating paddle 15 moves
Direction is opposite with 14 direction of motion of loose slot.
Then, by the water inlet 32 in fixing groove 3, it is added remaining water, when water inlet, 15 side of moving of screw agitating paddle
To opposite with 14 direction of motion of loose slot.
After stirring, the second motor 10 drives loose slot 14 to be rotated up, and rotational angle is more than 90 °, concrete grout quilt
It pours blow tank 16 into, opens third motor 28, third motor 28 shakes, and concrete grout is promoted to be moved simultaneously to concrete discharge port 13
Discharging.
The embodiment of the above is only used to explain the present invention, the scope of the present invention is not limited, for this technology
It, certainly can be according to technology contents disclosed in this specification, by way of replacing or changing for the technical staff in field
Other embodiments are made easily, therefore all changes and improvements etc. done in the principle of the present invention and process conditions, it should all wrap
It includes in scope of the present invention patent.
Claims (10)
1. a kind of using waste ceramic as the pervious concrete of aggregate, which is characterized in that the pervious concrete is by water, cement, mixed
Close coarse aggregate and polyvinyl alcohol in mass ratio 0.25~0.5:1:1.9~3.9:0.01~0.02 composition；The mixing coarse aggregate
By modified waste ceramic coarse aggregate and natural coarse aggregate by volume 1:1 composition；The modified waste ceramic coarse aggregate is to use ordinary silicon
Slurries processing coarse aggregate modified to waste ceramic prepared by acid salt cement, waste ceramic powder and water obtains.
2. according to according to claim 1 a kind of using waste ceramic as the pervious concrete of aggregate, which is characterized in that described
Waste ceramic coarse aggregate and the grain size of natural coarse aggregate are 5~16mm.
3. according to claim 1 a kind of using waste ceramic as the pervious concrete of aggregate, which is characterized in that the useless pottery
The median particle diameter of porcelain powder is 5~8 μm.
4. according to claim 1 a kind of using waste ceramic as the pervious concrete of aggregate, which is characterized in that described permeable
Concrete is 0.3~0.4 in mass ratio by water, cement, mixing coarse aggregate and polyvinyl alcohol:1:2.1~3.3:0.011~
0.017 composition.
5. it is a kind of using waste ceramic as the preparation method of the pervious concrete of aggregate based on Claims 1 to 4 any one of them,
It is characterized by comprising the following steps：
Step 1：By waste ceramic cleaning, dry after be crushed, sieve grain size be 5~16mm waste ceramic coarse aggregate and intermediate value
Grain size is 5~8 μm of waste ceramic powder；
Step 2：By Portland cement and waste ceramic powder in mass ratio 6:（3~4）Mixing, obtains mixed-powder, then by water
The slurries that the ratio of mud is 0.7~1.1 are mixed and made into mixed-powder, waste ceramic coarse aggregate is put into slurries and is impregnated, impregnate 24
It takes out and dries after hour, obtain modified waste ceramic coarse aggregate；
Step 3：It will modified waste ceramic coarse aggregate and natural coarse aggregate by volume 1:1 mixing, obtains mixing coarse aggregate；
Step 4：It is m that coarse aggregate and quality, which will be mixed,w1Water mixing, stand 20~30min, must pre-process mix coarse aggregate；
Step 5：Cement and polyvinyl alcohol are proportionally added into pretreatment mixing coarse aggregate, then mixing adds residue
Quality be mw2Water, stir evenly, obtain concrete grout；The mw1：mw2It is 1:（2~3）；
Step 6：Progress machine vibrates after concrete grout is packed into mold, is then conserved to get pervious concrete；The machine
The time that device vibrates is 10 seconds.
6. it is a kind of using waste ceramic as the process units of the pervious concrete of aggregate based on Claims 1 to 4 any one of them,
It is characterized in that, the process units includes support device, agitating device and drawing mechanism, the support device includes holder
（11）With two carriers（1）, the holder（11）Including four supporting rods and the fixed plate that is laid in above supporting rod, two
The carrier（1）Positioned at holder（11）Interior both sides, carrier（1）Including two supporting rods and it is laid in above supporting rod
L-shaped loading plate（18）, the L-shaped loading plate（18）Horizontal ends be laid with water tank（9）, first motor（2）With the second motor
（10）, two carriers（1）Between be laid with agitating device, the agitating device includes charging hopper, stirred tank and agitating paddle,
The charging hopper is laid between fixed plate and stirred tank, and the stirred tank includes fixing groove（3）Be laid in fixing groove（3）
The loose slot of lower section（14）, the fixing groove（3）And loose slot（14）It is oppositely arranged, the water tank（9）Pass through water pipe and fixation
Slot（3）Connection, the agitating paddle are laid in fixing groove（3）Lower part, agitating paddle and first motor（2）Output axis connection, it is living
Dynamic slot（14）Pass through shaft and the second motor（10）Output axis connection, loose slot（14）Lower section be laid with drawing mechanism, institute
It includes discharging hopper to state drawing mechanism（16）, third motor（28）And fixed seat, the discharging hopper（16）Top it is rectangular,
Lower part is trapezoidal, and the fixed seat is laid in discharging hopper（16）Lower section, fixed seat includes support base（29）It is propped up with being laid in
Support seat（29）The shock-absorbing spring of top（30）, discharge hopper（16）The centre of bottom is laid with concrete discharge port（13）, described
Third motor（28）It is laid in fixed seat and concrete discharge port（13）Between.
7. according to a kind of using waste ceramic as the process units of the pervious concrete of aggregate described in claim 6, which is characterized in that
The charging hopper includes the first hopper（5）With the second hopper（7）.
8. according to a kind of using waste ceramic as the process units of the pervious concrete of aggregate described in claim 6, which is characterized in that
The fixing groove（3）And loose slot（14）It include curved plate（19）Be laid in curved plate（19）The semicircle gear of both sides
Plate（20）, fixing groove（3）Semicircular baffle（20）Outside be fixedly connected with support plate（21）, the support plate（21）It lays
In L-shaped loading plate（18）Vertical end, the loose slot（14）Semicircular baffle（20）The centre on top offers the first circle
Hole（22）, loose slot（14）With L-shaped loading plate（18）Between be laid with shaft, the shaft includes first rotating shaft（23）With second
Shaft（24）, first rotating shaft（23）With the second shaft（24）One end penetrate the first circular hole（22）It is fixedly connected on loose slot（14）
On, first rotating shaft（23）The other end pass through L-shaped loading plate（18）Vertical end and the second motor（10）Output axis connection,
Two shafts（24）The other end be laid in L-shaped loading plate（18）Vertical end on, first circular hole（22）Side offer
Semi-circular groove（25）, the semi-circular groove（25）Internal diameter be not less than agitating paddle top chock outer diameter.
9. according to a kind of using waste ceramic as the process units of the pervious concrete of aggregate described in claim 6, which is characterized in that
The loose slot（14）Curved plate（19）Inner surface is laid with protrusion（17）, loose slot（14）Semicircular baffle（20）Outside
The width of side is less than fixing groove（3）Semicircular baffle（20）The width of inside, loose slot（14）Semicircular baffle（20）Outside
The height of side is less than fixing groove（3）Semicircular baffle（20）The height of inside, loose slot（14）Curved plate（19）Outside
Length be not more than fixing groove（3）Curved plate（19）The length of inside.
10. according to a kind of using waste ceramic as the process units of the pervious concrete of aggregate described in claim 6, feature exists
In one end of the agitating paddle passes through support plate（21）On the second circular hole（33）With first motor（2）Output axis connection, stir
The other end for mixing paddle is laid in fixing groove（3）Inside, the agitating paddle be screw agitating paddle（15）.
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Application publication date: 20181009 |