CN110218044A - A kind of non-coarse aggregate nuclear power sacrificial concrete and preparation method thereof - Google Patents
A kind of non-coarse aggregate nuclear power sacrificial concrete and preparation method thereof Download PDFInfo
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- CN110218044A CN110218044A CN201910481412.4A CN201910481412A CN110218044A CN 110218044 A CN110218044 A CN 110218044A CN 201910481412 A CN201910481412 A CN 201910481412A CN 110218044 A CN110218044 A CN 110218044A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of non-coarse aggregate nuclear power sacrificial concretes and preparation method thereof, the concrete is mainly made of the raw material of following weight ratio: 350-500 parts of ordinary portland cement, 110-130 parts of superfined flyash, 30-50 parts of silicon ash, 1000-1200 parts of river sand, 0.5-3 parts of vinal, 6-8 parts of polycarboxylate water-reducer, 180-200 parts of water, and 0.3-2 parts of graphene oxide.The nuclear power sacrificial concrete that the method for the present invention is prepared can satisfy mobility, working performance and the engineering demand for decomposing enthalpy change, have broad application prospects.
Description
Technical field
The present invention relates to a kind of non-coarse aggregate nuclear power sacrificial concretes and preparation method thereof, belong to the field of building materials.
Background technique
In the energy, environmental crisis increasingly prominent today, nuclear power is as a kind of cleaning, stable, efficient and can uniquely advise greatly
The energy of mould substitute fossil fuels.Increasingly it is taken seriously.There are a large amount of radioactive materials in nuclear power plant reactor, if these are put
Penetrating property material can be discharged into environment, and will cause huge harm.Thus, although the probability that major accident occurs for nuclear power plant is extremely low,
But the risk of major accident can not be ignored in nuclear power station design, construction, operational process.In terms of concrete elevated temperature property,
Current research has been primarily upon the performance of normal concrete, high-strength concrete, high performance concrete and self-compacting concrete, but
It is insufficient that performance study is made to its thermal technology.In terms of graphene is to the influence of concrete performance, about graphene and its spread out at present
Biology to there is a large amount of research in terms of the mechanical property, endurance quality and erosion-resisting characteristics of cement paste and mortar, but about
The influence of graphene and its derivative to sacrificial concrete performance, there is no relevant researchs.
Summary of the invention
Goal of the invention: it is mixed that in order to solve the above-mentioned technical problems, the present invention provides a kind of non-coarse aggregate advanced Nuclear Power sacrifices
Solidifying soil and preparation method thereof.
Technical solution: to achieve the goals above, the invention adopts the following technical scheme:
A kind of non-coarse aggregate nuclear power sacrificial concrete, is mainly made of the raw material of following weight ratio:
300-450 parts of ordinary portland cement, 120-150 parts of superfined flyash, 20-40 parts of silicon ash,
900-1200 parts of river sand, 0.5-3 parts of vinal,
5-10 parts of polycarboxylate water-reducer, 180-200 parts of water, 0.3-2 parts of graphene oxide.
As preferred:
The ordinary portland cement is PII52.5 grades of ordinary portland cements.
The superfined flyash is in solid spherical, continuous ionic exchange, ultra-fine, and the median of laser particle size is 5.5mm,
Wherein SiO2Content is 52%, Al2O3Content is 22%, Fe2O3Content is 4%, CaO content 12%.
SiO in the silicon ash2Content is more than or equal to 95%, and specific surface area is not less than 1500vc0m2/kg。
The river sand fineness modulus is 1.8, partial size 0-5mm, density 2.55-2.70g/cm3, water absorption rate 0.6-
0.8%.
The vinal be pencil monofilament, 15-20 μm of diameter, length range 5-10mm, fusing point 160-170
DEG C, tensile strength is more than or equal to 3000MPa.
The solid content of the polycarboxylate water-reducer is more than or equal to 40% (mass content), and water-reducing rate is more than or equal to
33.9%.
The graphene oxide in the form of sheets, a diameter of 50-100 μm, with a thickness of 1-2nm.
The preparation method of the non-coarse aggregate nuclear power sacrificial concrete, comprising the following steps:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, polycarboxylate water-reducer and graphene oxide is added into above-mentioned uniform material, obtains uniformly
Mixture slurry first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
It is preferred that stirring the equipment used in preparation process is forced action type list horizontal axis concrete mixer.
Technical effect: compared with the existing technology, the present invention can prepare the more excellent non-coarse aggregate core of mechanical property
Electric sacrificial concrete, and its working performance is preferable, facilitates engineering construction, in addition, the corrode rate of gained concrete material is obvious
It reduces, resistance to erosion improves, and so as to improve the safety of nuclear power station, is worthy of popularization, relative to using bloodstone
As the sacrificial concrete of coarse aggregate, coarse aggregate is not used in the present invention, engineering cost can be significantly reduced.
Specific embodiment
Below with reference to specific example, the present invention is furture elucidated.
Raw materials used in following embodiment is claimed below:
Ordinary portland cement is PII52.5 grades of ordinary portland cements.
Superfined flyash is in solid spherical, continuous ionic exchange, ultra-fine, and the median of laser particle size is 5.5mm, wherein
SiO2Content is 52%, Al2O3Content is 22%, Fe2O3Content is 4%, CaO content 12%.
SiO in silicon ash2Content is more than or equal to 95%, and specific surface area is not less than 1500vc0m2/kg。
River sand fineness modulus is 1.8, partial size 0-5mm, density 2.55-2.70g/cm3, water absorption rate 0.6-0.8%.
Vinal be pencil monofilament, 15-20 μm of diameter, length range 5-10mm, 160-170 DEG C of fusing point, tension
Intensity is more than or equal to 3000MPa.
The solid content of polycarboxylate water-reducer is more than or equal to 40% (mass content), and water-reducing rate is more than or equal to 33.9%.
Graphene oxide in the form of sheets, a diameter of 50-100 μm, with a thickness of 1-2nm.
Water is tap water or drinking water, meets the requirement of " concrete water standard " (JGJ63-2006).
The blender used is forced action type list horizontal axis concrete mixer.
Embodiment 1
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
360 parts of ordinary portland cement, 120 parts of superfined flyash, 40 parts of silicon ash, 1200 parts of river sand, polycarboxylate water-reducer
10 parts, 3 parts of vinal, 0.3 part of graphene oxide, 192 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Embodiment 2
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
360 parts of ordinary portland cement, 120 parts of superfined flyash, 40 parts of silicon ash, 1200 parts of river sand, polycarboxylate water-reducer
10 parts, 3 parts of vinal, 0.6 part of graphene oxide, 192 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Embodiment 3
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
360 parts of ordinary portland cement, 120 parts of superfined flyash, 40 parts of silicon ash, 1200 parts of river sand, polycarboxylate water-reducer
10 parts, 3 parts of vinal, 0.9 part of graphene oxide, 192 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Embodiment 4
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
360 parts of ordinary portland cement, 120 parts of superfined flyash, 40 parts of silicon ash, 1200 parts of river sand, polycarboxylate water-reducer
10 parts, 3 parts of vinal, 1.2 parts of graphene oxide, 192 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Embodiment 5
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
300 parts of ordinary portland cement, 135 parts of superfined flyash, 20 parts of silicon ash, 900 parts of river sand, polycarboxylate water-reducer 5
Part, 0.5 part of vinal, 0.6 part of graphene oxide, 180 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Embodiment 6
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
450 parts of ordinary portland cement, 150 parts of superfined flyash, 30 parts of silicon ash, 1150 parts of river sand, polycarboxylate water-reducer 7
Part, 2 parts of vinal, 2 parts of graphene oxide, 200 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, water-reducing agent and graphene oxide is added into above-mentioned uniform material, be uniformly mixed slurry
Body first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Comparative example 1
A kind of non-coarse aggregate nuclear power sacrificial concrete, according to parts by weight, including following components:
360 parts of ordinary portland cement, 120 parts of superfined flyash, 40 parts of silicon ash, 1200 parts of river sand, polycarboxylate water-reducer
10 parts, 3 parts of vinal, 192 parts of water.
Preparation method:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water and water-reducing agent is added into above-mentioned uniform material, be uniformly mixed slurry, first stirs at a slow speed
It mixes, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
Performance detection:
Above-described embodiment 1-4 is determined, it is main to measure concrete 28d compression strength and decompose enthalpy change, it adopts
Its workability is characterized with Control Measures for Concrete Slump divergence.Following table one lists the test result of above-described embodiment 1-4.
One test result of table
It can be obtained by upper one result of table, non-coarse aggregate nuclear power sacrificial concrete obtained by 1-4 of the embodiment of the present invention, mobility,
Compression strength and enthalpy change is decomposed with the content of graphene oxide in first increasing the trend reduced afterwards, can meet nuclear power sacrifice and mix
Coagulate the basic demand of soil.Comparing embodiment 1 and comparative example 1, it can be found that coagulation can be significantly improved after adding graphene oxide
The Erosion resistance of soil has preferable engineering effort.
Claims (10)
1. a kind of nuclear power sacrificial concrete, which is characterized in that it is mainly made of the raw material of following weight ratio:
300-450 parts of ordinary portland cement, 120-150 parts of superfined flyash, 20-40 parts of silicon ash,
900-1200 parts of river sand, 0.5-3 parts of vinal,
5-10 parts of polycarboxylate water-reducer, 180-200 parts of water, 0.3-2 parts of graphene oxide.
2. nuclear power sacrificial concrete according to claim 1, which is characterized in that the ordinary portland cement is
PII52.5 grades of ordinary portland cements.
3. nuclear power sacrificial concrete according to claim 1, which is characterized in that the superfined flyash is in solid spherical,
Continuous ionic exchange, ultra-fine, the median of laser particle size is 5.5mm, wherein SiO2Content is 52%, Al2O3Content is
22%, Fe2O3Content is 4%, CaO content 12%.
4. nuclear power sacrificial concrete according to claim 1, which is characterized in that SiO in the silicon ash2Content be greater than etc.
In 95%, specific surface area is not less than 15000m2/kg。
5. nuclear power sacrificial concrete according to claim 1, which is characterized in that the river sand fineness modulus is 1.8, grain
Diameter is 0-5mm, density 2.55-2.70g/cm3, water absorption rate 0.6-0.8%.
6. nuclear power sacrificial concrete according to claim 1, which is characterized in that the vinal is pencil list
Silk, 15-20 μm of diameter, length range 5-10mm, 160-170 DEG C of fusing point, tensile strength is more than or equal to 3000MPa.
7. nuclear power sacrificial concrete according to claim 1, which is characterized in that the solid content of the polycarboxylate water-reducer
More than or equal to 40% (mass content), water-reducing rate is more than or equal to 33.9%.
8. nuclear power sacrificial concrete according to claim 1, which is characterized in that the graphene oxide in the form of sheets,
Diameter is 50-100 μm, with a thickness of 1-2nm.
9. the preparation method of the described in any item nuclear power sacrificial concretes of claim 1-8, which is characterized in that including following step
It is rapid:
(1) ordinary portland cement, superfined flyash, silicon ash, river sand are taken, is mixed, stirring obtains mixing cementitious material；
(2) vinal is added in above-mentioned mixing cementitious material, equal refining is obtained after stirring；
(3) mixed solution of water, polycarboxylate water-reducer and graphene oxide is added into above-mentioned uniform material, is uniformly mixed
Slurry first mixes slowly, then quickly stirring；
(4) it after stirring, is conserved by standard forming, the advanced Nuclear Power sacrificial concrete can be obtained.
10. the preparation method of electricity sacrificial concrete according to claim 9, which is characterized in that stirring makes in preparation process
Equipment is forced action type list horizontal axis concrete mixer.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299798A (en) * | 2020-11-25 | 2021-02-02 | 南京林业大学 | Strontium ferrite base sacrificial mortar and preparation method thereof |
| CN112390598A (en) * | 2020-11-25 | 2021-02-23 | 南京林业大学 | Strontium ferrite-based self-compacting sacrificial purifying slurry and preparation method thereof |
| CN115231860A (en) * | 2022-06-22 | 2022-10-25 | 桂林理工大学 | Cement-based material of modified graphene and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108751868A (en) * | 2018-07-17 | 2018-11-06 | 南京林业大学 | Novel siliceous nuclear power expendable material of one kind and preparation method thereof |
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2019
- 2019-06-04 CN CN201910481412.4A patent/CN110218044A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751868A (en) * | 2018-07-17 | 2018-11-06 | 南京林业大学 | Novel siliceous nuclear power expendable material of one kind and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| PAWEL SIKORA等: "The Influence of Nanomaterials on the Thermal Resistance of Cement-Based Composites—A Review", 《NANOMATERIALS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299798A (en) * | 2020-11-25 | 2021-02-02 | 南京林业大学 | Strontium ferrite base sacrificial mortar and preparation method thereof |
| CN112390598A (en) * | 2020-11-25 | 2021-02-23 | 南京林业大学 | Strontium ferrite-based self-compacting sacrificial purifying slurry and preparation method thereof |
| CN115231860A (en) * | 2022-06-22 | 2022-10-25 | 桂林理工大学 | Cement-based material of modified graphene and preparation method thereof |
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Application publication date: 20190910 |