CN110028284A - Graphene oxide Desert Sand cement-base composite material - Google Patents
Graphene oxide Desert Sand cement-base composite material Download PDFInfo
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- CN110028284A CN110028284A CN201910282999.6A CN201910282999A CN110028284A CN 110028284 A CN110028284 A CN 110028284A CN 201910282999 A CN201910282999 A CN 201910282999A CN 110028284 A CN110028284 A CN 110028284A
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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
- 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
- C04B14/026—Carbon of particular shape, e.g. nanotubes
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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
- 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
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
- C04B14/068—Specific natural sands, e.g. sea -, beach -, dune - or desert sand
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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)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Nanotechnology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses graphene oxide Desert Sand cement-base composite materials, it is related to a kind of mixing cement based composites, cement-base composite material is made of cement, water, sand, water-reducing agent and graphene oxide, and the sand is that river sand and Desert Sand form, and the weight of Desert Sand accounts for the 50-100% of sand total amount；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5-3.4:0.1-0.6.The present invention mixes appropriate graphene oxide, and in Desert Sand cement-based material its resistance to compression, flexural strength can improve, and it is the most obvious to promote effect by test block mechanics after the graphene oxide incorporation of 0%-0.01%；The full Desert Sand test block of 0.03% graphene oxide, resistance to compression, flexural strength can compare normal sand test block completely；The incorporation of graphene oxide promotes the mechanical property of Desert Sand test block and becomes apparent relative to normal sand test block.
Description
Technical field
The present invention relates to cement-base composite materials, in particular to graphene oxide Desert Sand cement-base composite material.
Background technique
With the fast development of urbanization and infrastructure construction, in engineering construction increasingly to the demand of thick, middle sand
Greatly, thick, the middle sand in current engineering is taken from the riverbed of Yu Jiang, river, but the river negligible amounts in Xinjiang, and is distributed very uneven.
The structure that sand not only destroys riverbed largely is adopted, also causes the serious ecological crisis of originally fragile Ecological Environment In Xinjiang, separately
Outside, far from river, the freight charges of construction sand are also very high for many rural area.So seeking the substitute products of thick, middle sand
Xinjiang region engineering construction is particularly important, is one of the focus of vast focus of attention in the field.If can utilize
Desert Sand substitutes thick, middle sand and is applied in engineering construction, then is to be made that tremendous contribution using natural resources to reasonable.But it is husky
Unconcerned sand particle is thin, and large specific surface area is not easy mix, big with cement amount and water requirement, easily isolation and layering, and resistance to compression, anti-folding are strong
Spend low, durability is poor.
A large amount of research has been done to Desert Sand cement-based material both at home and abroad, by incorporation fiber, flyash, pitch etc. come
Improve its performance.It is concluded that are as follows: the above cement mortar block of C30 intensity with Desert Sand volume raising, the resistance to compression of test block,
Flexural strength is first improved and is reduced afterwards.But these methods only prevent crack progressing by Materials with High Strength in macro-scale or pass through
It reduces cement-based material porosity and improves the intensity of cement-based material, still remained in crack and the hole of micro-scale.
It is not only similar in mechanical property to graphene about graphene oxide (GO), also because its surface is abundant oxygen-containing
Functional group can be very good to suspend in water and more applied by a large amount of research.Therefore, if graphene oxide is introduced into desert
In sand cement based composites, the inadequate natural endowment of Desert Sand cement-base composite material will can be made up, met or exceeded common
The requirement of the indices such as cement-based material mechanics and endurance quality.Therefore, expansion this aspect research will be to desert sand concrete
Popularization and application play an important role.
Summary of the invention
The purpose of the invention is to overcome the problems of the prior art, it is multiple to provide graphene oxide Desert Sand cement base
Condensation material.
The present invention provides graphene oxide Desert Sand cement-base composite material, graphene oxide Desert Sand cement base is multiple
Condensation material, which is characterized in that the cement-base composite material is made of cement, water, sand, water-reducing agent and graphene oxide, described
Sand is made of river sand and Desert Sand, and the weight of Desert Sand accounts for the 50-100% of sand total amount；Wherein, by mass percentage, water
Mud: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5-3.4:0.1-0.6.
Preferably, the cement-base composite material is made of cement, water, sand, water-reducing agent and graphene oxide, the sand
For Desert Sand；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:
2.5-3.4:0.1-0.3.
Preferably, the cement-base composite material is made of cement, water, sand, water-reducing agent and graphene oxide, the sand
For Desert Sand；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:
2.8:0.3.
Preferably, the cement P.O42.5 ordinary portland cement.
Preferably, the water-reducing agent is high performance water reducing agent of polyocarboxy acid.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention mixes appropriate GO, and in Desert Sand cement-based material its resistance to compression, flexural strength can improve, by
It is the most obvious to promote effect for test block mechanics after the GO incorporation of 0%-0.01%；The full Desert Sand test block of 0.03% GO, resistance to compression resist
Folding intensity can compare normal sand test block completely；The incorporation of GO promotes relative to normal sand the mechanical property of Desert Sand test block
Test block becomes apparent.
2) present invention is through microcosmic Mechanism Analysis, and reasonable dismissal Desert Sand, the mutual promoting action of GO and GO act on machine
Reason provides foundation for further research.
3) present invention by Desert Sand be applied to cement-based material field, from protection environment, inhibit desertification, gather materials on the spot,
For reasonable use aspects, there is positive economy and realistic meaning.
Graphene oxide is introduced into Desert Sand cement-base composite material by the present invention, can make up Desert Sand coagulation
The inadequate natural endowment of soil meets or exceeds the common strong indices requirement such as cement-based material mechanics and endurance quality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will to embodiment or
Attached drawing needed in comparative example description is briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the relational graph of compression strength and Desert Sand doping after test specimen 7d of the present invention, and wherein test specimen is embodiment
The test specimen that 1-6, comparative example 1-6 are obtained；
Fig. 2 is the relational graph of compression strength and Desert Sand doping after test specimen 28d of the present invention, and wherein test specimen is to implement
The test specimen that example 1-6, comparative example 1-6 are obtained；
Fig. 3 is the relational graph of flexural strength and Desert Sand doping after test specimen 7d of the present invention, and wherein test specimen is embodiment
The test specimen that 1-6, comparative example 1-6 are obtained；
Fig. 4 is the relational graph of flexural strength and Desert Sand doping after test specimen 28d of the present invention, and wherein test specimen is to implement
The test specimen that example 1-6, comparative example 1-6 are obtained；
Fig. 5 be comparative example 6 of the present invention, comparative example 2, embodiment 4 and embodiment 3 mortar specimen conserve to carrying out after 7 days
Electron-microscope scanning figure, wherein (a) figure be 6 mortar specimen of comparative example conserve the SEM to after 7 days figure, (b) figure is 2 mortar of comparative example
SEM figure after test block maintenance to 7 days, (c) figure is that 4 mortar specimen of embodiment conserves the figure of the SEM to after 7 days；(d) figure is to implement
3 mortar specimen of example conserves the figure of the SEM to after 7 days.
Specific embodiment
Specific embodiments of the present invention will be described in detail below, it is to be understood that protection scope of the present invention is simultaneously
It is not restricted by specific implementation.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that the examination of graphene oxide Desert Sand cement-base composite material involved in the embodiment of the present invention
The specific preparation method of part is as follows:
According to cement: water: sand: water-reducing agent: the mass percent of graphene oxide is 1000:500:2222.2:2.5-
3.4:0.1-0.6 weighs cement, water, sand, water-reducing agent and graphene oxide, starts blender, and water is sequentially added into blender
After mud, sand and graphene oxide, dry mixing is uniform, and water-reducing agent is added to the water, and stirs evenly, and is then slowly added into blender,
It stirs, is then put into the mold of 100mm*100mm*400mm, obtain specimen test test specimen.
Embodiment 1
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are Desert Sand, i.e. the weight of Desert Sand accounts for sand total amount
100%；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.8:
0.3。
Cement P.O42.5 ordinary portland cement, water-reducing agent are high performance water reducing agent of polyocarboxy acid.
Embodiment 2
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are Desert Sand, i.e. the weight of Desert Sand accounts for sand total amount
100%；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5:
0.1。
Cement P.O42.5 ordinary portland cement, water-reducing agent are high performance water reducing agent of polyocarboxy acid.
Embodiment 3
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are Desert Sand, i.e. the weight of Desert Sand accounts for sand total amount
100%；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:3.4:
0.6。
Comparative example 1
The graphene oxide Desert Sand cement-base composite material that comparative example 1 provides, the cement-base composite material is by water
Mud, water and sand composition, the sand are Desert Sand, i.e. the weight of Desert Sand accounts for the 100% of sand total amount；Wherein, by mass percentage
Meter, cement: water: sand=1000:500:2222.2.
Embodiment 4
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are that river sand and Desert Sand form, i.e. the weight of Desert Sand accounts for
The 50% of sand total amount；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:
2222.2:3.4:0.1.
Embodiment 5
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are that river sand and Desert Sand form, i.e. the weight of Desert Sand accounts for
The 50% of sand total amount；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:
2222.2:2.5:0.1.
Embodiment 6
The embodiment of the present invention provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by
Cement, water, sand, water-reducing agent and graphene oxide composition, the sand are that river sand and Desert Sand form, i.e. the weight of Desert Sand accounts for
The 50% of sand total amount；Wherein, by mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:
2222.2:3.4:0.6.
Comparative example 2
The graphene oxide Desert Sand cement-base composite material that comparative example 2 provides, the cement-base composite material is by water
Mud, water and sand composition, the sand are that river sand and Desert Sand form, i.e. the weight of Desert Sand accounts for the 50% of sand total amount；Wherein, it presses
Mass percent meter, cement: water: sand=1000:500:2222.2.
Comparative example 3
Comparative example 3 provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by cement,
Water, sand, water-reducing agent and graphene oxide composition, the sand are river sand, i.e. the weight of Desert Sand accounts for the 0% of sand total amount；Wherein,
By mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:3.4:0.3.
Comparative example 4
Comparative example 4 provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by cement,
Water, sand, water-reducing agent and graphene oxide composition, the sand are river sand, i.e. the weight of Desert Sand accounts for the 0% of sand total amount；Wherein,
By mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5:0.3.
Comparative example 5
Comparative example 5 provide graphene oxide Desert Sand cement-base composite material, the cement-base composite material by cement,
Water, sand, water-reducing agent and graphene oxide composition, the sand are river sand, i.e. the weight of Desert Sand accounts for the 0% of sand total amount；Wherein,
By mass percentage, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:3.4:0.6.
Comparative example 6
The graphene oxide Desert Sand cement-base composite material that comparative example 6 provides, the cement-base composite material is by water
Mud, water and sand composition, the sand are river sand at the weight of i.e. Desert Sand accounts for the 0% of sand total amount；Wherein, by mass percentage
Meter, cement: water: sand=1000:500:2222.2.
One, Desert Sand substitution rate and graphene oxide (GO) volume impact analysis
1.1 experimental design
Based on orthogonal test analysis, further studies Desert Sand substitution rate and GO volume is compound to GO- Desert Sand cement base
The resistance to compression of material and flexural strength affecting laws.Test specimen is the sand test test block of 100mm*100mm*400mm standard rubber, specific to try
Test the concrete of concrete and comparative example 1-6 that object is embodiment 1-6.
Due to be 100% Desert Sand substitution rate and high additive GO, water requirement is increased sharply, thus according to the actual situation with
The orthogonal whole ratio of mud of trend is 0.5, cement mortar rate 0.45.The Desert Sand alternate standard sand for being 0,50%, 100% with substitution rate,
Under same Desert Sand substitution rate, the desert GO- sand cement is made with the material that GO volume is 0,0.01%, 0.03%, 0.06%
Based composites test block.
Recycling sample is carried out after mechanical test, is observed for scanning electron microscope (SEM) surface topography.Test cooperation
Than being shown in Table 1.
Table 1 tests match ratio
1.2 results and analysis
2 test result of table
It can be seen from table 2 and Fig. 1 and Fig. 2 on the whole, the compression strength of either 7 days or 28 days test specimens,
GO volume from 0.01%-0.03%, intensity be all it is increased, separately from increase slope can be seen that from volume 0%-0.01%,
Regardless of Desert Sand volume how much, intensity increasing degree is all the largest, and GO volume is from 0.01%-0.03%, increasing degree
Gradually slow down, volume to 0.06%, intensity can sharply decline.This may be that the GO of high additive is difficult to disperse and generate flocculation, separately
Outer its viscosifies thickening behavior and becomes apparent, and water requirement increases, and has certain shadow to Desert Sand cement composite material slurry workability
It rings.
For test specimen 28 days compression strength situations, the blank sample that opposite GO volume is 0%, GO incorporation was 0.01%-
When 0.03%, comparative example 3 and 4 test specimen compression strength of comparative example are respectively increased 30.87%, 50.99%, embodiment 5 and embodiment
4 test specimen compression strength are respectively increased 31.03%, 53.9%, and embodiment 2 and 1 test specimen compression strength of embodiment are respectively increased
42.92%, 77.8%.When GO volume is 0.03%, each group of data increases 50% or more, especially 100% Desert Sand
It is more significant when volume (embodiment 1), even 46.8% is improved than normal sand (comparative example 6) compression strength.Therefore, exist
100% Desert Sand volume situation adds a small amount of GO, and compression strength is entirely capable of meeting or exceeding the intensity of normal sands.
It can be seen from Fig. 3 and Fig. 4 on the whole, either 7 days or 28 days flexural strengths, GO volume exist
0.01% increasing degree is larger, and then when GO volume is from 0.01%-0.03%, increasing degree gradually slows down.With compression strength
Increasing degree is the same, and when GO volume is by 0.01%-0.03%, the test piece intensity increase of 100% Desert Sand volume is all than other two
Group is significant, when especially volume is 0.01%, improves more significant.Compare 7 days and 28 days flexural strength increasing degrees, discovery 7
It increasing degree is integrally bigger than normal, and which reflects the effects that GO improves early stage flexural strength.
For 28 days situations, the blank sample that opposite GO volume is 0% when GO incorporation is 0.01%-0.03%, was implemented
Example 5 and 4 test specimen flexural strength of embodiment improve 32.12%, 42.67%；Embodiment 5 and 4 flexural strength of embodiment improve
31.19%, 52.12%；Embodiment 2 and 1 flexural strength of embodiment improve 53.67%, 82.11%.100% Desert Sand volume
When (embodiment 1), 35.62% is improved than normal sand (comparative example 6) flexural strength.
With compression strength increasing degree compare find: Desert Sand substitution rate is higher, GO volume be 0.03% when resistance to compression,
Flexural strength increasing degree is bigger, and gradient is obvious；When GO volume is from 0.01%-0.03%, 100% Desert Sand volume
Strength enhancing is the most significant, and the resistance to compression when GO volume is 0.03%, flexural strength are all larger than normal sand (comparative example 6)
35% or more class value；No matter GO volume is how many, resistance to compression, flexural strength equal highest when 50% Desert Sand substitution rate.
Thus we can speculate that GO- Desert Sand Mechanical Properties of Cement-based Materials can be improved in GO, and strong to early stage anti-folding
Degree is promoted more obvious.It is most significant for the strength enhancing of the embodiment 1-3 group of 100% Desert Sand volume for accomplishing something difficult and so deserve praise, should
It was found that further exploration can be done for the research of full desert cement-based material.
1.3 Micro-Structure Analysis
It is research GO to the Influencing Mechanism of Desert Sand cement-based mortar mechanical property, to comparative example 6, comparative example 2, implements
The mortar specimen of example 4 and embodiment 3 is conserved to 7 days progress electron-microscope scannings.6 (0%GO- of comparative example can be seen that by Fig. 5 (a) figure
Normal sand) there are a large amount of elongated acicular crystals in test block, and more lax, defective tightness, hydrated product are few, are easy to produce sky
Hole.It can be seen that hydrated product form changes in 50% Desert Sand test block by (b) figure, spicule is opposite to be reduced, and gel increases
It is more.Speculate that increasing about gel is the volcano ash effect because of Desert Sand, a large amount of activity in ancient capital Xi'an sand
SiO2With hydrolysis product of cement alkalinity Ca (OH)2Hydration reaction occurs, promotes to generate hydrated calcium silicate (C-S-H) gel, C-S-
H makes that test block is more closely knit, intensity is higher.It has more, more densely cross-linked water relative to (b) figure it can be seen from (c) figure
Change product, and has no generation instead the aggregate of needle-shaped entringite product substantially because of the addition of GO.Research
Its mechanism can be attributed to the growth that a large amount of active groups that GO lamella abutment surface contains promote aquation crystal, and in addition GO is to aquation
The shape of product also has template adjustment effect, make it be easier to mutually be embedded in, assemble etc. in a manner of form condensate.By (d) figure
It can be seen that drawknot effect of the GO to hydrated product stress destruction when, the very high mechanical property of GO itself can prevent Desert Sand from receiving
The extension of rice microcrack.In addition it can also be seen that when GO increases to 0.06t%, hydrated product fails sufficiently to develop to be whole, hole
Rate becomes larger, and compactness decline influences intensity.On the other hand excessive Desert Sand makes gel rubber material relative deficiency, hydrated product
It is opposite to reduce, fine aggregate cannot be preferably wrapped up, crack is also easy to produce.
The present invention it can be concluded that appropriate GO is mixed in Desert Sand cement-based material its resistance to compression, flexural strength can improve,
It is the most obvious that effect is promoted by test block mechanics after the GO incorporation of 0%-0.01%；The full Desert Sand test block of 0.03% GO, resistance to compression,
Flexural strength can compare normal sand test block completely；The incorporation of GO promotes relative to standard the mechanical property of Desert Sand test block
Sand test block becomes apparent.Through microcosmic Mechanism Analysis, reasonable dismissal Desert Sand, the mutual promoting action of GO and GO act on machine
Reason provides foundation for further research.
Although preferred embodiments of the present invention have been described, once a person skilled in the art knows basic wounds
The property made concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from of the invention by those skilled in the art
Spirit and scope.In this way, if these modifications and changes of the present invention belongs to the model of the claims in the present invention and its equivalent technologies
Within enclosing, then the present invention is also intended to include these modifications and variations.
Claims (5)
1. graphene oxide Desert Sand cement-base composite material, which is characterized in that the cement-base composite material by cement, water,
Sand, water-reducing agent and graphene oxide composition, the sand are made of river sand and Desert Sand, and the weight of Desert Sand accounts for the 50- of sand total amount
100%；Wherein, it counts in mass ratio, cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5-3.4:
0.1-0.6。
2. graphene oxide Desert Sand cement-base composite material as described in claim 1, which is characterized in that the cement base is multiple
Condensation material is made of cement, water, sand, water-reducing agent and graphene oxide, and the sand is Desert Sand；Wherein, by mass percentage,
Cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.5-3.4:0.1-0.3.
3. graphene oxide Desert Sand cement-base composite material as claimed in claim 2, which is characterized in that the cement base is multiple
Condensation material is made of cement, water, sand, water-reducing agent and graphene oxide, and the sand is Desert Sand；Wherein, by mass percentage,
Cement: water: sand: water-reducing agent: graphene oxide=1000:500:2222.2:2.8:0.3.
4. graphene oxide Desert Sand cement-base composite material as described in claim 1, which is characterized in that the cement is
P.O42.5 ordinary portland cement.
5. graphene oxide Desert Sand cement-base composite material as described in claim 1, which is characterized in that the water-reducing agent is
High performance water reducing agent of polyocarboxy acid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112441793A (en) * | 2020-11-20 | 2021-03-05 | 中铁二十局集团有限公司 | Economical and environment-friendly concrete and preparation method thereof |
| CN113912344A (en) * | 2021-10-11 | 2022-01-11 | 海南大学 | Curing material based on calcareous sand and preparation method thereof |
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| CN113912344A (en) * | 2021-10-11 | 2022-01-11 | 海南大学 | Curing material based on calcareous sand and preparation method thereof |
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