CN107311559A - Waste ceramic fine concrete and preparation method thereof - Google Patents
Waste ceramic fine concrete and preparation method thereof Download PDFInfo
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- CN107311559A CN107311559A CN201710412278.3A CN201710412278A CN107311559A CN 107311559 A CN107311559 A CN 107311559A CN 201710412278 A CN201710412278 A CN 201710412278A CN 107311559 A CN107311559 A CN 107311559A
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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
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- 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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/16—Waste materials; Refuse from building or ceramic industry
- C04B18/165—Ceramic waste
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of waste ceramic fine concrete, including following parts by weight raw material：On the basis of the parts by weight of cement 100；The ceramic fine aggregate of 150 250 parts by weight；200 300 parts by weight stone coarse aggregates, the water of 30 40 parts by weight；The water reducer of 13 parts by weight, 10 25 parts by weight fine mineral admixtures, 0.1 1 percent by weight fiber.Compared with normal concrete general at present, due to directly make use of waste ceramic aggregate, the production cost of concrete is reduced.0 4.75mm waste ceramic fine aggregate is easier processing, and cost is only 20 yuan/ton.Economic benefit highly significant.Compression strength >=50MPa of this waste ceramic fine aggregate high performance concrete, tensile splitting strength >=5MPa, seepage-resistant grade reaches more than P10, and freeze proof grade is more than F300.Directly using the waste ceramic of china industry, pollution problem of the waste ceramic to environment is solved, while having saved material resources.
Description
Technical field
The present invention relates to a kind of waste ceramic fine concrete and preparation method thereof, and in particular to one kind utilizes discarded pottery
Porcelain produces high-quality concrete, reduces the preparation technology of cost improvement concrete performance.
Background technology
Domestic and international many scholars have carried out Primary Study to ceramic fine concrete.Taken in varing proportions with waste ceramic
Tested for natural river sand concrete batching, show that ceramic fine concrete compressive strength rate normal concrete has suitably
Improve on ground.
State Statistics Bureau's data display, national Ceramic Tiles yield in 2016 is up to 8,000,000,000 m3, sanitary ware about 1.8 hundred million
Part.A large amount of waste ceramics can be supervened during Production of Ceramics, in addition, in ceramic transport, use, the finishing of building,
A large amount of waste ceramics can be also produced during removal etc..Because waste ceramic is formed through high-temperature firing, its hardness is high, performance is stable, nothing
Method is cleared up naturally, brings serious environmental problem.
Fictile is loose structure, and usual water absorption rate is more than 9%, and section is coarse unglazed, is had a gruff voice during percussion, can divide again
For crude pottery and fine pottery.Fine pottery is typically burnt till twice through biscuiting and glaze firing, and usual white or ivory white, its stomata is very big and more,
Most of stomata is interconnected, therefore water absorption rate is higher, about 9%-12%.Fine pottery is waterproof, and surface is smooth, is difficult to stain, product machine
Tool intensity and chemical stability are higher.Ceramic products be by natural stone crush after add chemical binder pressing and formed through high temperature sintering.
Sintering temperature is high, and compactness is good, and a small amount of mutually disconnected minimum stomata is presented in inside, and water absorption rate is less than 0.5%, and moisture expantion is minimum, therefore
Its High anti bending strength, wear-resistant, acid and alkali-resistance, nondiscolouring, long lifespan.In -15 DEG C to -20 DEG C Frozen-thawed cycleds 20 times without visual defects.
Construction industry as ceramic product consumption rich and influential family, if shraff can be used to solving the shortage of own material ask
Topic, on the one hand, can save the burial processing cost of shraff, mitigates environmental pressure；On the other hand, shraff substitution day
Right sand, greatly alleviates the pressure of concrete fine aggregate shortage of resources, realizes the situation of doulbe-sides' victory.
The content of the invention
The purpose of the present invention be to overcome above-mentioned the deficiencies in the prior art there is provided a kind of waste ceramic fine concrete and
Its preparation method, directly using the waste ceramic of china industry, solves pollution problem of the waste ceramic to environment, while saving material
Expect resource.By the water-reduction of high efficiency water reducing agent, the intensity of concrete is improved.Processing will be directly crushed and screened in production process
Waste ceramic particle afterwards is as the fine aggregate of concrete, and basic unit is made up of cement, stone, is vibrated on low frequency plain bumper
Then, waste ceramic fine aggregate high performance concrete is made after maintenance to age in 15s.
To achieve the above object, the present invention uses following technical proposals：
A kind of waste ceramic fine concrete, including following parts by weight raw material：On the basis of the parts by weight of cement 100；150-
The ceramic fine aggregate of 250 parts by weight；200-300 parts by weight stone coarse aggregates, the water of 30-40 parts by weight；The diminishing of 1-3 parts by weight
Agent, 10-25 parts by weight fine mineral admixtures, 0.1-1 percent by weight fiber.
The ceramic fine aggregate is the ceramic particle that particle diameter is 0-5mm.
The particle diameter 5-20mm of the stone coarse aggregate, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
The fine mineral admixture is flyash, specific surface area >=1000mm2/kg。
The water reducer is polycarboxylate high performance water-reducing agent, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency concrete
Any of water reducer.
The fiber is basalt fibre.
The cement uses the cement of P.O42.5 grades.
A kind of preparation method of waste ceramic fine concrete, comprises the following steps：
Step one：According to designed concrete mix, cement, ceramic fine aggregate, stone, fine mineral admixture, diminishing are weighed
Agent, fiber and water, it is then that water reducer is soluble in water；
Step 2：It is added to successively according to the order of stone, cement, fine mineral admixture, ceramic fine aggregate and fiber in mixer
Premixing 30s；
Step 3：Add water reducer and water is stirred for 120s；
Step 4：Waste ceramic fine concrete is put into mould, 15s shapings are vibrated on low frequency plain bumper, are then adopted
Waste ceramic fine concrete is prepared with steam-cured method.
The steam-cured method is conserved to waste ceramic fine concrete, and the steam curing point of concrete is quiet
Stop, heat up, constant temperature, cooling four-stage, the steam curing of concrete should correspond with following regulation：
（1）It is quiet stop during environment temperature should be kept to be not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set；
（2）Programming rate is not preferably greater than 10 DEG C/h；
（3）Concrete internal temperature maximum must not exceed 65 DEG C during constant temperature, and 10 ~ 12h of curing time after standing, wherein constant temperature are supported
4 ~ 5h of shield time；
（4）Cooling rate is not preferably greater than 10 DEG C/h, reaches after curing time, waste ceramic fine concrete is made.
Compression strength >=50MPa of the waste ceramic fine concrete of preparation, Split-tension of Rolled >=5MPa, seepage-resistant grade reaches
To more than P10, freeze proof grade is more than F300.
In the present invention, cement can also use other cement of ad eundem, such as portland cement, portland slag cement,
Portland pozzolana cement, Portland fly ash cement etc..
Basalt fibre is a kind of inorganic fibre of the basalt ore formed by volcanic eruption through high-temperature fusion, wire drawing
Material is tieed up, it is typical silicate fiber, with natural compatibility, is held very much when being mixed and stirred with it with cement concrete and mortar
It is easily scattered.Basalt fibre is reasonably mixed in concrete, the shock resistance of concrete can be also improved, its fragility is reduced,
Improve the mechanical property of concrete.Basalt fiber concrete also has superior temperature tolerance, anti-contracility and corrosion resistance,
This is conducive to the durability for improving concrete, expands the use scope of concrete.
Concrete crushing strength is with 150mm × 150mm × 150mm cube specimen, using steam-cured method
Conserved, tested with Standard test method, and the intensity level obtained by regulation computational methods.
In such scheme, concrete splitting tensile strength is, with 150mm × 150mm × 150mm cube specimen, to steam
Vapour curing condition is issued to after regulation curing time, and test specimen is placed on to the center of testing machine lower platen, splitting pressure-bearing surface and
Top surface when splitting surface is with specimen molding is vertical, is padded between upper and lower pressing plate and test specimen with each one of circular arc cushion block and filler strip,
Cushion block should be aligned with filler strip with the center line of test specimen above and below and with shaping when top surface it is vertical.
In such scheme, concrete permeability resistance is measured using pressurization step by step, during experiment hydraulic pressure since 0.1MP, after
Increase 0.1MP hydraulic pressure, and observation surface of test piece infiltration situation at any time every 8h, stop when 3 test specimens seep water in 6 test specimens
Only pressurize, and record now water pressure.
In such scheme, concrete frost resistance is typically represented with freeze proof grade.In such scheme, concrete frost resistance is general
Represented with freeze proof grade, anti-freezing property should be with two indexs of relative dynamic elastic modulus loss late after Frozen-thawed cycled and rate of weight loss
As judgment criteria, freeze proof grade is to be up to the test block after experiment age after water suction saturation, bears multigelation circulation, with
The relative dynamic elastic modulus loss late of test specimen is no more than 40%, and mass loss rate is no more than the maximum that can bear when 5%
Freezing-thawing cycles are determined.Concrete is divided into following freeze proof grade by GBT50476-2008：F10、F15、F25、F50、
Nine grades such as F100, F150, F200, F250, F300.
So, waste ceramic fine aggregate high performance concrete of the invention is with low cost, remarkable in economical benefits, physical property
It is excellent.Compared with normal concrete general at present, due to directly make use of waste ceramic aggregate, the production of concrete is reduced
Cost.0-4.75mm waste ceramic fine aggregate is easier processing, and cost is only 20 yuan/ton.Economic benefit highly significant.This
Compression strength >=50MPa of waste ceramic fine aggregate high performance concrete, tensile splitting strength >=5MPa, seepage-resistant grade reaches
More than P10, freeze proof grade is more than F300.Directly using the waste ceramic of china industry, waste ceramic is solved to environment
Pollution problem, while having saved material resources.
Embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1：
A kind of waste ceramic fine concrete, its raw material match ratio by weight is as follows：
Stone coarse aggregate：259 parts
Ceramic 179 parts of fine aggregate
37 parts of water
1.3 parts of water reducer
100 parts of cement
17 parts of fine mineral admixture
0.5 part of fiber
Ceramic fine aggregate is the ceramic particle that particle diameter is 0-5mm.
The particle diameter 5-20mm of stone coarse aggregate, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
Fine mineral admixture is flyash, specific surface area >=1000mm2/kg。
Water reducer is polycarboxylate high performance water-reducing agent, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency concrete diminishing
Any of agent.
Fiber is basalt fibre.
Cement uses the cement of P.O42.5 grades.
Waste ceramic fine concrete preparation process is as follows：
The ceramic fine aggregate weighed, cement, fine mineral admixture, ceramic coarse aggregate and fiber are added into dry mixing 30s after mixer,
Then add water reducer and water is stirred for 120s.
The ceramic coarse aggregate concrete stirred is loaded into mould, 15s shapings are vibrated on low frequency plain bumper, are used
Steam-cured method is conserved, and reaches defined curing time.
Steam-cured method is conserved to waste ceramic fine aggregate high performance concrete, and the steam curing of concrete can
It is point quiet stop, heat up, constant temperature, cooling four-stage, the steam curing of concrete should correspond with following regulation：（1）It is quiet to stop period
Environment temperature should be kept to be not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set.（2）Programming rate should not be big
In 10 DEG C/h.（3）Concrete internal temperature is no more than 60 DEG C during constant temperature, and maximum must not exceed 65 DEG C, when being conserved after standing
Between 10 ~ 12h, wherein 4 ~ 5h of thermostatic curing time.（4）Cooling rate is not preferably greater than 10 DEG C/h.Reach after curing time, be made useless
Abandon ceramic full aggregate concrete grass-planting brick.
The measure of indices is carried out by relevant criterion.The waste ceramic fine aggregate high performance concrete performance of the present embodiment
Index is as follows：
Embodiment 2：
Waste ceramic fine concrete, its raw material match ratio by weight is as follows：
Stone coarse aggregate：275 parts
Ceramic 245 parts of fine aggregate
35 parts of water
2.3 parts of water reducer
100 parts of cement
18 parts of fine mineral admixture
0.4 part of fiber
Ceramic fine aggregate is the ceramic particle that particle diameter is 0-5mm.
The particle diameter 5-20mm of stone coarse aggregate, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
Fine mineral admixture is flyash, specific surface area >=1000mm2/kg。
Water reducer is polycarboxylate high performance water-reducing agent, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency concrete diminishing
Any of agent.
Fiber is basalt fibre.
Cement uses the cement of P.O42.5 grades.
Waste ceramic fine aggregate high performance concrete preparation process is as follows：
The ceramic fine aggregate weighed, cement, fine mineral admixture, ceramic coarse aggregate and fiber are added into dry mixing 30s after mixer,
Then add water reducer and water is stirred for 120s.
The ceramic coarse aggregate concrete stirred is loaded into mould, 15s shapings are vibrated on low frequency plain bumper, are used
Steam-cured method is conserved, and reaches defined curing time.
Steam-cured method is conserved to waste ceramic fine aggregate high performance concrete, and the steam curing of concrete can
It is point quiet stop, heat up, constant temperature, cooling four-stage, the steam curing of concrete should correspond with following regulation：（1）It is quiet to stop period
Environment temperature should be kept to be not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set.（2）Programming rate should not be big
In 10 DEG C/h.（3）Concrete internal temperature is no more than 60 DEG C during constant temperature, and maximum must not exceed 65 DEG C, when being conserved after standing
Between 10 ~ 12h, wherein 4 ~ 5h of thermostatic curing time.（4）Cooling rate is not preferably greater than 10 DEG C/h.Reach after curing time, be made useless
Abandon ceramic full aggregate concrete grass-planting brick.
The measure of indices is carried out by relevant criterion.The waste ceramic fine aggregate high performance concrete performance of the present embodiment
Index is as follows：
Embodiment 3：
A kind of waste ceramic fine concrete, its raw material match ratio by weight is as follows：
Stone coarse aggregate：200 parts
Ceramic 150 parts of fine aggregate
30 parts of water
1 part of water reducer
100 parts of cement
10 parts of fine mineral admixture
0.1 part of fiber
Ceramic fine aggregate is the ceramic particle that particle diameter is 0-5mm.
The particle diameter 5-20mm of stone coarse aggregate, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
Fine mineral admixture is flyash, specific surface area >=1000mm2/kg。
Water reducer is polycarboxylate high performance water-reducing agent, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency concrete diminishing
Any of agent.
Fiber is basalt fibre.
Cement uses the cement of P.O42.5 grades.
Waste ceramic fine aggregate high performance concrete preparation process is as follows：
The ceramic fine aggregate weighed, cement, fine mineral admixture, ceramic coarse aggregate and fiber are added into dry mixing 30s after mixer,
Then add water reducer and water is stirred for 120s.
The ceramic coarse aggregate concrete stirred is loaded into mould, 15s shapings are vibrated on low frequency plain bumper, are used
Steam-cured method is conserved, and reaches defined curing time.
Steam-cured method is conserved to waste ceramic fine aggregate high performance concrete, and the steam curing of concrete can divide
It is quiet stop, heat up, constant temperature, cooling four-stage, the steam curing of concrete should correspond with following regulation：（1）It is quiet stop during answer retaining ring
Border temperature is not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set.（2）Programming rate is not preferably greater than 10 DEG C/h.（3）It is permanent
Concrete internal temperature is no more than 60 DEG C during temperature, and maximum must not exceed 65 DEG C, 10 ~ 12h of curing time after standing, wherein thermostatic curing
4 ~ 5h of time.（4）Cooling rate is not preferably greater than 10 DEG C/h.Reach after curing time, the full aggregate concrete grass-planting brick of waste ceramic is made.
Embodiment 4：
A kind of waste ceramic fine concrete, its raw material match ratio by weight is as follows：
Stone coarse aggregate：300 parts
Ceramic 250 parts of fine aggregate
40 parts of water
3 parts of water reducer
100 parts of cement
25 parts of fine mineral admixture
1 part of fiber
Ceramic fine aggregate is the ceramic particle that particle diameter is 0-5mm.
The particle diameter 5-20mm of stone coarse aggregate, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
Fine mineral admixture is flyash, specific surface area >=1000mm2/kg。
Water reducer is polycarboxylate high performance water-reducing agent, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency concrete diminishing
Any of agent.
Fiber is basalt fibre.
Cement uses the cement of P.O42.5 grades.
Waste ceramic fine aggregate high performance concrete preparation process is as follows：
The ceramic fine aggregate weighed, cement, fine mineral admixture, ceramic coarse aggregate and fiber are added into dry mixing 30s after mixer,
Then add water reducer and water is stirred for 120s.
The ceramic coarse aggregate concrete stirred is loaded into mould, 15s shapings are vibrated on low frequency plain bumper, are used
Steam-cured method is conserved, and reaches defined curing time.
Steam-cured method is conserved to waste ceramic fine aggregate high performance concrete, and the steam curing of concrete can
It is point quiet stop, heat up, constant temperature, cooling four-stage, the steam curing of concrete should correspond with following regulation：（1）It is quiet to stop period
Environment temperature should be kept to be not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set.（2）Programming rate should not be big
In 10 DEG C/h.（3）Concrete internal temperature is no more than 60 DEG C during constant temperature, and maximum must not exceed 65 DEG C, when being conserved after standing
Between 10 ~ 12h, wherein 4 ~ 5h of thermostatic curing time.（4）Cooling rate is not preferably greater than 10 DEG C/h.Reach after curing time, be made useless
Abandon ceramic full aggregate concrete grass-planting brick.
Although the above-mentioned embodiment to the present invention is described, not to the limit of the scope of the present invention
System, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art need not pay
Go out various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (10)
1. a kind of waste ceramic fine concrete, it is characterized in that, including following parts by weight raw material：With the parts by weight of cement 100
On the basis of；The ceramic fine aggregate of 150-250 parts by weight；200-300 parts by weight stone coarse aggregates, the water of 30-40 parts by weight；1-3
The water reducer of parts by weight, 10-25 parts by weight fine mineral admixtures, 0.1-1 percent by weight fiber.
2. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the ceramic fine aggregate is that particle diameter is 0-
5mm ceramic particle.
3. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the particle diameter 5- of the stone coarse aggregate
20mm, crush values are less than 15%, apparent density 2640kg/m3, clay content ＜ 1%.
4. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the fine mineral admixture is flyash,
Specific surface area >=1000mm2/kg。
5. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the water reducer is the high property of polycarboxylic-acid
Any of energy water reducer, sulfamate high-effective water-reducing agent and naphthalene series high-efficiency cement water reducing agent.
6. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the fiber is basalt fibre.
7. waste ceramic fine concrete as claimed in claim 1, it is characterized in that, the cement uses P.O42.5 grades
Cement.
8. a kind of preparation method of waste ceramic fine concrete as claimed in claim 1, it is characterized in that, including following step
Suddenly：
Step one：Cement, ceramic fine aggregate, stone, fine mineral admixture, water reducer, fiber and water are weighed, it is then that water reducer is molten
Yu Shuizhong；
Step 2：According to designed concrete mix, successively according to stone, cement, fine mineral admixture, ceramic fine aggregate and
The order of fiber is added to premixing 30s in mixer；
Step 3：Add water reducer and water is stirred for 120s；
Step 4：Waste ceramic fine concrete is put into mould, 15s shapings are vibrated on low frequency plain bumper, are then adopted
Waste ceramic fine concrete is prepared with steam-cured method.
9. preparation method as claimed in claim 8, it is characterized in that, the steam-cured method is mixed to waste ceramic fine aggregate
Solidifying soil is conserved, and the steam curing point of concrete is quiet to stop, heats up, constant temperature, cooling four-stage, and the steam curing of concrete is answered
Correspond with following regulation：
（1）It is quiet stop during environment temperature should be kept to be not less than 5 DEG C, can be heated up after pouring 4~6h of end and concrete final set；
（2）Programming rate is not preferably greater than 10 DEG C/h；
（3）Concrete internal temperature maximum must not exceed 10 ~ 12h of curing time after 65 DEG C of standings during constant temperature, and wherein constant temperature is supported
4 ~ 5h of shield time；
（4）Cooling rate is not preferably greater than 10 DEG C/h, reaches after curing time, waste ceramic fine concrete is made.
10. preparation method as claimed in claim 8, it is characterized in that, the pressure resistance of the waste ceramic fine concrete of preparation
Degree >=50MPa, Split-tension of Rolled >=5MPa, seepage-resistant grade reaches more than P10, and freeze proof grade is more than F300.
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Cited By (8)
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|---|---|---|---|---|
| CN108249852A (en) * | 2018-01-24 | 2018-07-06 | 宋金博 | A kind of very-high performance underground waterproof concrete material and preparation method thereof |
| CN109437777A (en) * | 2019-01-14 | 2019-03-08 | 湘潭大学 | A kind of high additive mixing ceramic tile aggregate C150UHPC and preparation method thereof |
| CN109467370A (en) * | 2019-01-14 | 2019-03-15 | 湘潭大学 | A kind of high additive mixing ceramic tile aggregate C160UHPC and preparation method thereof |
| CN110407590A (en) * | 2019-07-24 | 2019-11-05 | 马鞍山盛平新材料科技有限公司 | Refractory material |
| CN111393094A (en) * | 2019-01-03 | 2020-07-10 | 东莞市易发混凝土有限公司 | Recycled aggregate concrete and preparation method thereof |
| CN111646741A (en) * | 2020-06-28 | 2020-09-11 | 宁波新力建材科技有限公司 | Iron ore special concrete and preparation method thereof |
| CN114230272A (en) * | 2021-12-10 | 2022-03-25 | 华南理工大学 | Anti-impact wear-resistant ultra-high performance concrete and application thereof |
| CN115490448A (en) * | 2021-06-17 | 2022-12-20 | 华南理工大学 | Method for reducing self-shrinkage of ultrahigh-performance concrete, high-strength concrete and high-strength mortar |
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Application publication date: 20171103 |