CN109053095A - A kind of enhanced frost-resistant concrete of modified graphene - Google Patents
A kind of enhanced frost-resistant concrete of modified graphene Download PDFInfo
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- CN109053095A CN109053095A CN201811239154.0A CN201811239154A CN109053095A CN 109053095 A CN109053095 A CN 109053095A CN 201811239154 A CN201811239154 A CN 201811239154A CN 109053095 A CN109053095 A CN 109053095A
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- modified graphene
- graphene
- oil shale
- resistant concrete
- organic solvent
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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
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
- C04B14/024—Graphite
-
- 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
- C04B18/12—Waste materials; Refuse from quarries, mining or the like
- C04B18/125—Slate residues, e.g. colliery shale or oil shale or oil shale ash
-
- 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
-
- 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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of enhanced frost-resistant concretes of modified graphene, are related to building materials technology field, the compound intercalation oil shale of the modified graphene containing its quality 8-12% in the enhanced frost-resistant concrete of modified graphene；Concrete prepared by the present invention has excellent anti-freezing property.
Description
Technical field
The invention belongs to building materials technology fields, and in particular to a kind of enhanced frost-resistant concrete of modified graphene.
Background technique
Temperature in north cold area, winter is very low, usually reaches subzero 20 degrees Celsius, and even up to subzero 45
Ten degrees Celsius.In such place, for the resistance to frost of architectural engineering, more stringent requirements are proposed, especially for highway,
On the one hand bridge etc., concrete need long-term tolerance ultralow temperature to be on the other hand subjected to the test of multigelation.In order to full
The requirement of sufficient this respect, the industry propose the concept and requirement of frost-resistant concrete, and frost-resistant concrete refers to Structural Design Requirement
Concrete has the long-term endurance quality for resisting Frozen-thawed cycled, that is, meets the freeze proof rank of structure design code.Currently, concrete
Frost resistance is general, is unable to satisfy the demand in market.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of enhanced frost-resistant concrete of modified graphene is provided.
The present invention is achieved by the following technical solutions:
A kind of modified graphene enhanced frost-resistant concrete contains its quality in the enhanced frost-resistant concrete of modified graphene
The compound intercalation oil shale of the modified graphene of 8-12%.
Further, the compound intercalation oil shale preparation method of the modified graphene the following steps are included:
(1) modified graphene: graphene uniform is distributed in deionized water, is configured to graphene dispersing solution, to graphene point
The sodium hypochlorite that its quality 0.1% is added in dispersion liquid is heated to 65 DEG C, 40min is stirred with 120r/min revolving speed, then again to stone
The trimethyl silicane potassium alcoholate of its quality 0.05-0.07% is added in black alkene dispersion liquid, with 500r/min revolving speed stirring 2 hours, is stood old
Change 1 hour, then filtered, is cleaned, drying to constant weight to get modified graphene；
(2) the compound intercalation oil shale of modified graphene: being crushed to 300 meshes for oil shale, obtain oil shale powder, by oil shale powder
It evenly spreads in organic solvent, silane, sodium hydroxide, deionized water is then added into organic solvent, be heated to 66 DEG C, protect
It after temperature is stirred to react 2.5-3 hours, is cooled to room temperature, continues stirring 5 hours, then add triethylamine and modification into organic solvent
Graphene adjusts the temperature to 50 DEG C, stirs 40min, then cooled to room temperature, and after revolving removes solvent, use is anhydrous
Ethyl alcohol and deionized water are respectively washed 10min, it is dry to constant weight to get.
Further, the graphene dispersing solution mass fraction is 7.8%.
Further, the organic solvent is acetone.
Further, the oil shale powder and organic solvent mixed proportion are 320g:500mL.
Further, the silane, sodium hydroxide, deionized water and organic solvent mixed proportion are 10g:5g:
120mL:500mL.
Further, the silane is trifluoro propyl triethoxy hydrogen silane.
Further, the triethylamine and modified graphene and organic solvent mixed proportion are 1.5g:25g:500mL.
Further, the enhanced frost-resistant concrete of the modified graphene further includes following parts by weight of component: silicate cement
Mud 300, flyash 82, sand 650, stone 1100, water 165；The sand fineness is 0.04cm, and stone granularity is 0.1cm.
The utility model has the advantages that the present invention by being adjusted to each Ingredient Amount, passes through the compound intercalation oil shale of modified graphene
Addition, reduce creeping for concrete, improve the modified of concrete, improve the workability of concrete mix, increase
The strong pumpability of concrete, significantly reduces hydration heat of concrete, thermal expansivity, while can inhibit the temperature difference and the crack that generates,
Improve the impermeability and frost resistance of concrete；By being used cooperatively with flyash, sand, stone, each component partial size is utilized
Difference realizes filling in concrete gel material, reduces the gap between each component particle, to reduce concrete total pore space
Rate improves pore structure, keeps concrete more closely knit, significantly improve the impermeability, corrosion resistance and intensity of concrete, adopt simultaneously
With the cooperation of portland cement, there is good hydraulic gelling property；It is unique by the compound intercalation oil shale of modified graphene
Architectural characteristic can not only improve concrete density, while concrete being made to have good anti-crack and anti-seepage, while having
Dilatancy can compensate for the contraction in course of hardening, reduce the slump, while improving the compression strength of concrete, anti-folding
Intensity improves the endurance qualities such as mechanical property and the frost resistance of concrete.
Specific embodiment
Embodiment 1
A kind of modified graphene enhanced frost-resistant concrete contains its quality in the enhanced frost-resistant concrete of modified graphene
The compound intercalation oil shale of 8% modified graphene.
Further, the compound intercalation oil shale preparation method of the modified graphene the following steps are included:
(1) modified graphene: graphene uniform is distributed in deionized water, is configured to graphene dispersing solution, to graphene point
The sodium hypochlorite that its quality 0.1% is added in dispersion liquid is heated to 65 DEG C, 40min is stirred with 120r/min revolving speed, then again to stone
The trimethyl silicane potassium alcoholate of its quality 0.05% is added in black alkene dispersion liquid, and with 500r/min revolving speed stirring 2 hours, it is small to stand aging 1
When, it is then filtered, is cleaned, drying to constant weight to get modified graphene；
(2) the compound intercalation oil shale of modified graphene: being crushed to 300 meshes for oil shale, obtain oil shale powder, by oil shale powder
It evenly spreads in organic solvent, silane, sodium hydroxide, deionized water is then added into organic solvent, be heated to 66 DEG C, protect
It after temperature is stirred to react 2.5 hours, is cooled to room temperature, continues stirring 5 hours, then add triethylamine and modified stone into organic solvent
Black alkene adjusts the temperature to 50 DEG C, stirs 40min, then cooled to room temperature, after revolving removes solvent, using anhydrous second
Pure and mild deionized water is respectively washed 10min, it is dry to constant weight to get.
Further, the graphene dispersing solution mass fraction is 7.8%.
Further, the organic solvent is acetone.
Further, the oil shale powder and organic solvent mixed proportion are 320g:500mL.
Further, the silane, sodium hydroxide, deionized water and organic solvent mixed proportion are 10g:5g:
120mL:500mL.
Further, the silane is trifluoro propyl triethoxy hydrogen silane.
Further, the triethylamine and modified graphene and organic solvent mixed proportion are 1.5g:25g:500mL.
Further, the enhanced frost-resistant concrete of the modified graphene further includes following parts by weight of component: silicate cement
Mud 300, flyash 82, sand 650, stone 1100, water 165；The sand fineness is 0.04cm, and stone granularity is 0.1cm.
Embodiment 2
A kind of modified graphene enhanced frost-resistant concrete contains its quality in the enhanced frost-resistant concrete of modified graphene
The compound intercalation oil shale of 12% modified graphene.
Further, the compound intercalation oil shale preparation method of the modified graphene the following steps are included:
(1) modified graphene: graphene uniform is distributed in deionized water, is configured to graphene dispersing solution, to graphene point
The sodium hypochlorite that its quality 0.1% is added in dispersion liquid is heated to 65 DEG C, 40min is stirred with 120r/min revolving speed, then again to stone
The trimethyl silicane potassium alcoholate of its quality 0.07% is added in black alkene dispersion liquid, and with 500r/min revolving speed stirring 2 hours, it is small to stand aging 1
When, it is then filtered, is cleaned, drying to constant weight to get modified graphene；
(2) the compound intercalation oil shale of modified graphene: being crushed to 300 meshes for oil shale, obtain oil shale powder, by oil shale powder
It evenly spreads in organic solvent, silane, sodium hydroxide, deionized water is then added into organic solvent, be heated to 66 DEG C, protect
It after temperature is stirred to react 3 hours, is cooled to room temperature, continues stirring 5 hours, then add triethylamine and modified graphite into organic solvent
Alkene adjusts the temperature to 50 DEG C, stirs 40min, then cooled to room temperature, after revolving removes solvent, using dehydrated alcohol
Be respectively washed 10min with deionized water, it is dry to constant weight to get.
Further, the graphene dispersing solution mass fraction is 7.8%.
Further, the organic solvent is acetone.
Further, the oil shale powder and organic solvent mixed proportion are 320g:500mL.
Further, the silane, sodium hydroxide, deionized water and organic solvent mixed proportion are 10g:5g:
120mL:500mL.
Further, the silane is trifluoro propyl triethoxy hydrogen silane.
Further, the triethylamine and modified graphene and organic solvent mixed proportion are 1.5g:25g:500mL.
Further, the enhanced frost-resistant concrete of the modified graphene further includes following parts by weight of component: silicate cement
Mud 300, flyash 82, sand 650, stone 1100, water 165；The sand fineness is 0.04cm, and stone granularity is 0.1cm.
Embodiment 3
A kind of modified graphene enhanced frost-resistant concrete contains its quality in the enhanced frost-resistant concrete of modified graphene
The compound intercalation oil shale of 10% modified graphene.
Further, the compound intercalation oil shale preparation method of the modified graphene the following steps are included:
(1) modified graphene: graphene uniform is distributed in deionized water, is configured to graphene dispersing solution, to graphene point
The sodium hypochlorite that its quality 0.1% is added in dispersion liquid is heated to 65 DEG C, 40min is stirred with 120r/min revolving speed, then again to stone
The trimethyl silicane potassium alcoholate of its quality 0.06% is added in black alkene dispersion liquid, and with 500r/min revolving speed stirring 2 hours, it is small to stand aging 1
When, it is then filtered, is cleaned, drying to constant weight to get modified graphene；
(2) the compound intercalation oil shale of modified graphene: being crushed to 300 meshes for oil shale, obtain oil shale powder, by oil shale powder
It evenly spreads in organic solvent, silane, sodium hydroxide, deionized water is then added into organic solvent, be heated to 66 DEG C, protect
It after temperature is stirred to react 2.8 hours, is cooled to room temperature, continues stirring 5 hours, then add triethylamine and modified stone into organic solvent
Black alkene adjusts the temperature to 50 DEG C, stirs 40min, then cooled to room temperature, after revolving removes solvent, using anhydrous second
Pure and mild deionized water is respectively washed 10min, it is dry to constant weight to get.
Further, the graphene dispersing solution mass fraction is 7.8%.
Further, the organic solvent is acetone.
Further, the oil shale powder and organic solvent mixed proportion are 320g:500mL.
Further, the silane, sodium hydroxide, deionized water and organic solvent mixed proportion are 10g:5g:
120mL:500mL.
Further, the silane is trifluoro propyl triethoxy hydrogen silane.
Further, the triethylamine and modified graphene and organic solvent mixed proportion are 1.5g:25g:500mL.
Further, the enhanced frost-resistant concrete of the modified graphene further includes following parts by weight of component: silicate cement
Mud 300, flyash 82, sand 650, stone 1100, water 165；The sand fineness is 0.04cm, and stone granularity is 0.1cm.
Comparative example 1: it is only that with the difference of embodiment 1 and does not add the compound intercalation oil shale of modified graphene.
Comparative example 2: it is only that with the difference of embodiment 1 and the compound intercalation oil shale of modified graphene is replaced with into graphene.
Comparative example 3: it is only that with the difference of embodiment 1 and the compound intercalation oil shale of modified graphene is replaced with into modified graphite
Alkene.
Comparative example 4: it is only that with the difference of embodiment 1 and the compound intercalation oil shale of modified graphene is replaced with into oil shale.
Test
To embodiment and comparative example concrete carry out the regulation concrete fast freeze-thaw round-robin method of (GB/T50082-2009) into
Row test, concrete outcome is referring to table 1(number of freezing and thawing 200 times):
Table 1
| Mass loss rate % | Loss of strength rate % | |
| Embodiment mean value | 1.05 | 4.57 |
| Comparative example 1 | 7.32 | 25.56 |
| Comparative example 2 | 4.29 | 18.41 |
| Comparative example 3 | 4.01 | 16.68 |
| Comparative example 4 | 5.12 | 20.37 |
As can be seen from Table 1, concrete prepared by the present invention has excellent anti-freezing property.
Claims (9)
1. a kind of enhanced frost-resistant concrete of modified graphene, which is characterized in that the enhanced freeze proof coagulation of modified graphene
The compound intercalation oil shale of modified graphene containing its quality 8-12% in soil.
2. a kind of enhanced frost-resistant concrete of modified graphene as described in claim 1, which is characterized in that the modified graphite
The compound intercalation oil shale preparation method of alkene the following steps are included:
(1) modified graphene: graphene uniform is distributed in deionized water, is configured to graphene dispersing solution, to graphene point
The sodium hypochlorite that its quality 0.1% is added in dispersion liquid is heated to 65 DEG C, 40min is stirred with 120r/min revolving speed, then again to stone
The trimethyl silicane potassium alcoholate of its quality 0.05-0.07% is added in black alkene dispersion liquid, with 500r/min revolving speed stirring 2 hours, is stood old
Change 1 hour, then filtered, is cleaned, drying to constant weight to get modified graphene；
(2) the compound intercalation oil shale of modified graphene: being crushed to 300 meshes for oil shale, obtain oil shale powder, by oil shale powder
It evenly spreads in organic solvent, silane, sodium hydroxide, deionized water is then added into organic solvent, be heated to 66 DEG C, protect
It after temperature is stirred to react 2.5-3 hours, is cooled to room temperature, continues stirring 5 hours, then add triethylamine and modification into organic solvent
Graphene adjusts the temperature to 50 DEG C, stirs 40min, then cooled to room temperature, and after revolving removes solvent, use is anhydrous
Ethyl alcohol and deionized water are respectively washed 10min, it is dry to constant weight to get.
3. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 2, which is characterized in that the graphene point
Dispersion liquid mass fraction is 7.8%.
4. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 2, which is characterized in that the organic solvent
For acetone.
5. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 2, which is characterized in that the oil shale powder
It is 320g:500mL with organic solvent mixed proportion.
6. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 2, which is characterized in that the silicon
Alkane, sodium hydroxide, deionized water and organic solvent mixed proportion are 10g:5g:120mL:500mL.
7. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 6, which is characterized in that the silane is three
Fluoropropyl triethoxy hydrogen silane.
8. a kind of enhanced frost-resistant concrete of modified graphene as claimed in claim 2, which is characterized in that the triethylamine and
Modified graphene and organic solvent mixed proportion are 1.5g:25g:500mL.
9. a kind of enhanced frost-resistant concrete of modified graphene as described in claim 1, which is characterized in that the modified graphite
The enhanced frost-resistant concrete of alkene further includes following parts by weight of component: portland cement 300, flyash 82, sand 650, stone
1100, water 165；The sand fineness is 0.04cm, and stone granularity is 0.1cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811239154.0A CN109053095A (en) | 2018-10-23 | 2018-10-23 | A kind of enhanced frost-resistant concrete of modified graphene |
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| CN201811239154.0A CN109053095A (en) | 2018-10-23 | 2018-10-23 | A kind of enhanced frost-resistant concrete of modified graphene |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113336500A (en) * | 2021-06-25 | 2021-09-03 | 亚士漆(上海)有限公司 | Adhesive mortar and preparation method and application thereof |
| CN113620673A (en) * | 2021-09-10 | 2021-11-09 | 北华大学 | Oil shale ash anti-freezing masonry and preparation method thereof |
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