CN110204279A - A kind of configuration method of high durability concrete - Google Patents
A kind of configuration method of high durability concrete Download PDFInfo
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- CN110204279A CN110204279A CN201910514585.1A CN201910514585A CN110204279A CN 110204279 A CN110204279 A CN 110204279A CN 201910514585 A CN201910514585 A CN 201910514585A CN 110204279 A CN110204279 A CN 110204279A
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- water
- graphene oxide
- concrete
- high durability
- configuration method
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of configuration methods of high durability concrete, graphene oxide and flyash, silicon powder, dicalcium powder and water are mixed to form admixture in a manner of hydrogel, the density for improving concrete, reduces the shrinking percentage of concrete, to promote the intensity and durability of concrete；Hydro-thermal reaction is carried out by the intermediate product that lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise to graphene oxide water solution formation, part element silicon and element sulphur can be doped on graphene oxide, it is subsequent in the reaction process of cement isogel material, space net structure is more readily formed, the compactness for promoting material, is obviously improved the anti-permeability performance of concrete；High durability concrete of the invention, intensity can achieve C40, and anti-permeability performance can achieve P12, can satisfy the science of bridge building of bridge spanning the sea, the rigors of 40 meters of underground engineerings below substantially.
Description
Technical field
The present invention relates to building material technical field more particularly to a kind of configuration methods of high durability concrete.
Background technique
Concrete is one of current most important civil engineering material.It is by cementitious material, granular aggregat (also referred to as
Aggregate), water and the additive being added when necessary and admixture prepare by a certain percentage, through uniform stirring, closely knit molding is supported
A kind of artificial stone material made of shield hardening.It is harsh with the high stratification of modern architecture, lightness, underground and use environment
Change, the demand to the concrete of high-intensitive, high-durability and preferable workability is growing, and high performance concrete becomes science and technology
The project that worker competitively studies.
In the prior art, although there is certain research for the intensity for improving concrete using admixture, for
The raising of intensity is simultaneously insufficient, and take into account while improving intensity workability, in terms of there is also further improvements
Leeway.Chinese invention patent CN108689625A discloses a kind of concrete admixture and preparation method thereof and concrete, should
The intensity of concrete can achieve C30 grade, and anti-permeability performance can achieve P10, have preferable intensity and durability, Ke Yiguang
It is general to be applied to build skyscraper, the engineerings such as bridge, but to the higher bridge spanning the sea of life requirement science of bridge building, 40
The harsh engineerings such as rice underground engineering below, durability is still undesirable, therefore it is still necessary to studies a kind of high-durability
Concrete and its configuration method.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of configuration methods of high durability concrete.
Technical scheme is as follows:
A kind of configuration method of high durability concrete, comprising the following steps:
A, graphite oxide is added to the water carry out ultrasonic disperse, obtains graphene oxide water solution；
B, lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise in above-mentioned graphene oxide water solution, when stirring one section
Between after formed intermediate product；
C, intermediate product is poured into reaction kettle and is reacted, hydrothermal temperature is 180-220 DEG C, and time 8-12h obtains oxygen
Graphite alkene hydrogel；
D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder are added in blender, water are added in spraying mode,
And stir evenly, obtain admixture；
E, it after being mixed and stirred for admixture and cement, mountain flour, river sand, water-reducing agent and water uniformly, draws off, is cast in mould to be formed
In tool, the precuring of 30-45min under room temperature is carried out, then, using 90-100 DEG C of steam curing slot steam curing 60-90min,
It is then cooled to room temperature, demoulded after 50-70min.
Preferably, in the step A, the concentration of the graphene oxide water solution is 0.8-1.2mg/mL.
Preferably, in the step B, in lauryl sodium sulfate and sodium metasilicate mixed solution, lauryl sodium sulfate
Concentration be 1-3mg/mL, the concentration of sodium metasilicate is 0.2-0.5mg/mL.
Preferably, in the step B, the dripping quantity of lauryl sodium sulfate and sodium metasilicate mixed solution is graphite oxide
The 0.05-0.3% of aqueous solution quality.
Preferably, in the step D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder and water mass ratio
For (1-5): (15-22): (6-10): (25-35): 50.
Preferably, in the step D, flyash, silicon powder, dicalcium powder partial size be 800 mesh.
Preferably, in the step E, the weight percent content of each ingredient are as follows: admixture 2-8%, cement 8-15%,
Mountain flour 35-45%, water-reducing agent 0.05-0.1%, water 6-8% and river sand surplus.
Preferably, the cement be 42.5,42.5R, 52.5, in 52.5R portland cement any one or it is more
The combination of kind.
The invention has the beneficial effects that:
The configuration method of high durability concrete of the invention and the difference of the configuration method of traditional concrete are: first is that plus
Graphene oxide is entered, second is that being mixed to form graphene oxide and flyash, silicon powder, dicalcium powder and water in a manner of hydrogel
Admixture.
The main function that graphene oxide is added in the present invention is: improving the density of concrete, reduces the receipts of concrete
Shrinkage, to promote the intensity and durability of concrete；And it uses graphene oxide hydrogel rather than is directly added into solid oxygen
The effect of graphite alkene or low-concentration oxidizing graphene aqueous solution is, by mixing lauryl sodium sulfate and sodium metasilicate
The intermediate product that solution is added drop-wise to graphene oxide water solution formation carries out hydro-thermal reaction, can be by part element silicon and element sulphur
It is doped on graphene oxide, it is subsequent in the reaction process of cement isogel material, it is easier to form space net structure, mention
The compactness for rising material, is obviously improved the anti-permeability performance of concrete；High durability concrete of the invention, intensity can achieve
C40, anti-permeability performance can achieve P12, can satisfy substantially the science of bridge building of bridge spanning the sea, 40 meters of underground engineerings below it is tight
Severe requirement.
Specific embodiment
Embodiment 1:
A kind of configuration method of high durability concrete, comprising the following steps:
A, graphite oxide is added to the water carry out ultrasonic disperse, obtains graphene oxide water solution；
B, lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise in above-mentioned graphene oxide water solution, when stirring one section
Between after formed intermediate product；
C, intermediate product is poured into reaction kettle and is reacted, hydrothermal temperature is 205 DEG C, and time 10h obtains graphite oxide
Alkene hydrogel；
D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder are added in blender, water are added in spraying mode,
And stir evenly, obtain admixture；
E, it after being mixed and stirred for admixture and cement, mountain flour, river sand, water-reducing agent and water uniformly, draws off, is cast in mould to be formed
In tool, the precuring of 35min under room temperature is carried out, then, using 95 DEG C of steam curing slot steam curing 75min, it is then cooled to
Room temperature is demoulded after 60min.
In the step A, the concentration of the graphene oxide water solution is 1.0mg/mL.
In the step B, in lauryl sodium sulfate and sodium metasilicate mixed solution, the concentration of lauryl sodium sulfate is
1.5mg/mL, the concentration of sodium metasilicate are 0.3mg/mL.
In the step B, the dripping quantity of lauryl sodium sulfate and sodium metasilicate mixed solution is that graphene oxide is water-soluble
The 0.15% of liquid quality.
In the step D, graphene oxide hydrogel and the mass ratio of flyash, silicon powder, dicalcium powder and water are 4:18:
7:32:50.
In the step D, flyash, silicon powder, dicalcium powder partial size be 800 mesh.
In the step E, the weight percent content of each ingredient are as follows: admixture 6%, mountain flour 42%, subtracts cement 12%
Aqua 0.08%, water 6.5% and river sand surplus.
The cement is 42.5 portland cements.
Embodiment 2:
A kind of configuration method of high durability concrete, comprising the following steps:
A, graphite oxide is added to the water carry out ultrasonic disperse, obtains graphene oxide water solution；
B, lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise in above-mentioned graphene oxide water solution, when stirring one section
Between after formed intermediate product；
C, intermediate product is poured into reaction kettle and is reacted, hydrothermal temperature is 180 DEG C, and time 12h obtains graphite oxide
Alkene hydrogel；
D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder are added in blender, water are added in spraying mode,
And stir evenly, obtain admixture；
E, it after being mixed and stirred for admixture and cement, mountain flour, river sand, water-reducing agent and water uniformly, draws off, is cast in mould to be formed
In tool, the precuring of 30min under room temperature is carried out, it is then, then, cooling using 100 DEG C of steam curing slot steam curing 60min
To room temperature, demoulded after 55min.
In the step A, the concentration of the graphene oxide water solution is 1.2mg/mL.
In the step B, in lauryl sodium sulfate and sodium metasilicate mixed solution, the concentration of lauryl sodium sulfate is
1mg/mL, the concentration of sodium metasilicate are 0.5mg/mL.
In the step B, the dripping quantity of lauryl sodium sulfate and sodium metasilicate mixed solution is that graphene oxide is water-soluble
The 0.05% of liquid quality.
In the step D, graphene oxide hydrogel and the mass ratio of flyash, silicon powder, dicalcium powder and water are 5:15:
10:27:50.
In the step D, flyash, silicon powder, dicalcium powder partial size be 800 mesh.
In the step E, the weight percent content of each ingredient are as follows: admixture 8%, mountain flour 45%, subtracts cement 8%
Aqua 0.05%, water 8% and river sand surplus.
The cement is the mixture that 42.5R and 52.5R portland cement mass ratio is 1:1.
Embodiment 3:
A kind of configuration method of high durability concrete, comprising the following steps:
A, graphite oxide is added to the water carry out ultrasonic disperse, obtains graphene oxide water solution；
B, lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise in above-mentioned graphene oxide water solution, when stirring one section
Between after formed intermediate product；
C, intermediate product is poured into reaction kettle and is reacted, hydrothermal temperature is 220 DEG C, and time 8h obtains graphite oxide
Alkene hydrogel；
D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder are added in blender, water are added in spraying mode,
And stir evenly, obtain admixture；
E, it after being mixed and stirred for admixture and cement, mountain flour, river sand, water-reducing agent and water uniformly, draws off, is cast in mould to be formed
In tool, the precuring of 45min under room temperature is carried out, then, using 90 DEG C of steam curing slot steam curing 90min, it is then cooled to
Room temperature is demoulded after 65min.
In the step A, the concentration of the graphene oxide water solution is 0.8mg/mL.
In the step B, in lauryl sodium sulfate and sodium metasilicate mixed solution, the concentration of lauryl sodium sulfate is
3mg/mL, the concentration of sodium metasilicate are 0.2mg/mL.
In the step B, the dripping quantity of lauryl sodium sulfate and sodium metasilicate mixed solution is that graphene oxide is water-soluble
The 0.3% of liquid quality.
In the step D, graphene oxide hydrogel and the mass ratio of flyash, silicon powder, dicalcium powder and water are 1:22:
6:35:50.
In the step D, flyash, silicon powder, dicalcium powder partial size be 800 mesh.
In the step E, the weight percent content of each ingredient are as follows: admixture 2%, mountain flour 35%, subtracts cement 15%
Aqua 0.1%, water 6% and river sand surplus.
The cement is 52.5R portland cement.
Comparative example 1
By the graphene oxide removal in embodiment 1, remaining proportion and preparation method are constant.
Comparative example 2
The step A-C in embodiment 1 is deleted, is directly added into homogenous quantities (with the oxidation in embodiment 1 in graphene oxide hydrogel
Graphene is identical in quality) graphene oxide solid, formed admixture, remaining proportion and preparation method it is constant.
Comparative example 3
The step B-C in embodiment 1 is deleted, is directly added into same dry mass (with the oxygen in embodiment 1 in graphene oxide hydrogel
Graphite alkene is identical in quality) graphene oxide solution of the concentration for 1.0mg/mL, formation admixture, remaining proportion and preparation method
It is constant.
Comparative example 4
By in embodiment 1 lauryl sodium sulfate and sodium metasilicate mixed solution replace with 30.0 μ L ethylenediamines, remaining proportion and
Preparation method is constant.
Comparative example 5
The step B-C in embodiment 1 is deleted, is directly added into same dry mass (with the oxygen in embodiment 1 in graphene oxide hydrogel
Graphite alkene is identical in quality) graphene oxide solution of the concentration for 1.0mg/mL, formation admixture, and add admixture gross mass
0.5% vulcanizing agent and 0.5% silane coupling agent, remaining proportion and preparation method it is constant.
The concrete sample of embodiment 1-3 and comparative example 1-5 are detected below, specific testing result is shown in Table 1.
Table 1: the testing result of the concrete sample of embodiment 1-3 and comparative example 1-5；
By the above test data it is recognised that the configuration method of high durability concrete of the invention, compared to traditional oxidation
The promotion effect of the adding method of graphene, intensity and anti-permeability performance is well very much.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of configuration method of high durability concrete, which comprises the following steps:
A, graphite oxide is added to the water carry out ultrasonic disperse, obtains graphene oxide water solution；
B, lauryl sodium sulfate and sodium metasilicate mixed solution are added drop-wise in above-mentioned graphene oxide water solution, when stirring one section
Between after formed intermediate product；
C, intermediate product is poured into reaction kettle and is reacted, hydrothermal temperature is 180-220 DEG C, and time 8-12h is obtained
Graphene oxide hydrogel；
D, graphene oxide hydrogel and flyash, silicon powder, dicalcium powder are added in blender, water are added in spraying mode,
And stir evenly, obtain admixture；
E, it after being mixed and stirred for admixture and cement, mountain flour, river sand, water-reducing agent and water uniformly, draws off, is cast in mould to be formed
In tool, the precuring of 30-45min under room temperature is carried out, then, using 90-100 DEG C of steam curing slot steam curing 60-90min,
It is then cooled to room temperature, demoulded after 50-70min.
2. the configuration method of high durability concrete as described in claim 1, which is characterized in that described in the step A
The concentration of graphene oxide water solution is 0.8-1.2mg/mL.
3. the configuration method of high durability concrete as described in claim 1, which is characterized in that in the step B, 12
In sodium alkyl sulfate and sodium metasilicate mixed solution, the concentration of lauryl sodium sulfate is 1-3mg/mL, and the concentration of sodium metasilicate is
0.2-0.5mg/mL。
4. the configuration method of high durability concrete as described in claim 1, which is characterized in that in the step B, 12
The dripping quantity of sodium alkyl sulfate and sodium metasilicate mixed solution is the 0.05-0.3% of graphene oxide water solution quality.
5. the configuration method of high durability concrete as described in claim 1, which is characterized in that in the step D, oxidation
Graphene hydrogel and the mass ratio of flyash, silicon powder, dicalcium powder and water are (1-5): (15-22): (6-10): (25-35):
50。
6. the configuration method of high durability concrete as described in claim 1, which is characterized in that in the step D, fine coal
Ash, silicon powder, dicalcium powder partial size be 800 mesh.
7. the configuration method of high durability concrete as described in claim 1, which is characterized in that in the step E, respectively at
The weight percent content divided are as follows: admixture 2-8%, cement 8-15%, mountain flour 35-45%, water-reducing agent 0.05-0.1%, water
6-8% and river sand surplus.
8. the configuration method of high durability concrete as described in claim 1, which is characterized in that the cement be 42.5,
42.5R, 52.5, any one or a variety of combinations in 52.5R portland cement.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110015873A (en) * | 2019-05-27 | 2019-07-16 | 王彦超 | A kind of environment protection, low cost packing material suitable for constructing tunnel goaf |
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| CN106431137A (en) * | 2016-09-21 | 2017-02-22 | 太原理工大学 | Grapheme concrete and preparation method thereof |
| WO2017040308A1 (en) * | 2015-08-31 | 2017-03-09 | Washington State University | Fly ash cementitious compositions |
| CN108069665A (en) * | 2018-01-24 | 2018-05-25 | 威海南海碳材料科技研究院有限公司 | A kind of graphene concrete and its preparation process |
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2019
- 2019-06-13 CN CN201910514585.1A patent/CN110204279A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017040308A1 (en) * | 2015-08-31 | 2017-03-09 | Washington State University | Fly ash cementitious compositions |
| CN105967197A (en) * | 2016-05-10 | 2016-09-28 | 唐山建华科技发展有限责任公司 | Water glass solution containing graphene and preparation method thereof |
| CN106431137A (en) * | 2016-09-21 | 2017-02-22 | 太原理工大学 | Grapheme concrete and preparation method thereof |
| CN108069665A (en) * | 2018-01-24 | 2018-05-25 | 威海南海碳材料科技研究院有限公司 | A kind of graphene concrete and its preparation process |
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| CN110015873A (en) * | 2019-05-27 | 2019-07-16 | 王彦超 | A kind of environment protection, low cost packing material suitable for constructing tunnel goaf |
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