CN106747232A - A kind of water-resistance magnesium oxysulfide concrete concrete material and preparation method thereof - Google Patents
A kind of water-resistance magnesium oxysulfide concrete concrete material and preparation method thereof Download PDFInfo
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- CN106747232A CN106747232A CN201510860075.1A CN201510860075A CN106747232A CN 106747232 A CN106747232 A CN 106747232A CN 201510860075 A CN201510860075 A CN 201510860075A CN 106747232 A CN106747232 A CN 106747232A
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Abstract
The invention discloses a kind of water-resistance magnesium oxysulfide concrete concrete material, it includes following components by weight：90~110 parts of caustic dolomite powder；100~300 parts of sand；100~500 parts of rubble；3~5 parts of additive；Baume degrees is 25~30 100~200 parts of Adlerika；Wherein, the additive is the mixing material of phosphoric acid or citric acid, phosphate and flyash, and its weight ratio is 1：0.8~1.8：4.5~6.5.The preparation method of concrete material as described above includes step：S101, by the caustic dolomite powder, sand, rubble and additive according to the components by weight percent stir mix；S102, by magnesium sulfate solid dissolving in water, formed Adlerika；S103, Adlerika is added in the mixing material that step S101 is obtained, be uniformly mixed, obtain water-resistance magnesium oxysulfide concrete concrete material.
Description
Technical field
The invention belongs to building material technical field, more particularly to a kind of water-resistance magnesium oxysulfide concrete concrete material
Material and preparation method thereof.
Background technology
Magnesium cement is a kind of special kinds cement, because it was sent out in 1867 by Frenchman's Sorel (Sorel)
Bright, so also known as magnesia oxychloride cement.Meanwhile, it with magnesia as main component, people traditionally also known as
It is magnesia cement.In many enterprises, people according to it with two kinds of magnesium compounds of magnesia and magnesium chloride be main
The characteristics of raw material, double magnesium cement are simply referred to as again.Magnesium cement be with the light burnt powder obtained by calcined magnesite stone or
Ashes (main component is MgO) obtained by low temperature calcination dolomite is cementing agent, with magnesium chloride hexahydrate
(MgCl2·6H2) etc. O water-soluble magnesium salt is blender, adds water, the light-burning magnesium powder and six water for being formed
Magnesium chloride as primary raw material, therefore, then generally, magnesium cement refers to just magnesia oxychloride cement.
The hardenite main component that magnesium cement is formed is 5Mg (OH)2·MgCl2·8H2O and
3Mg(OH)2·MgCl2·8H2Magnesia-magnesium chloride that O crystalline phases are constituted-water ternary compound crystalline phase double salt,
In addition, some Mg (OH)2Gel.Magnesium cement can be hardened quickly at normal temperatures and pressures, shape
Into the fragility artificial stone very higher than larger and hardness.Using its this hardening gelling, can be processed into
Various construction materials and ornament materials, have broad application prospects.At present, architectural engineering it
In the magnesium cement generally used all mainly with magnesia and magnesium chloride as main material is prepared from, but
It is that this cement can corrode metal in the halogen that gets damp, surface is easily caused for secondary decoration and is come off,
And this cement water resistance is very poor, and the life-span is shorter.Therefore to magnesia and magnesium chloride as main material system
Standby magnesia oxychloride cement is improved, to adapt to requirement of the modern construction engineering for magnesium cement.
The content of the invention
In order to solve the problems, such as prior art, the invention provides a kind of water-resistance magnesium oxysulfide concrete coagulation
Soil material and preparation method thereof, the concrete material has good corrosion resistance and water-resistance.
For achieving the above object, present invention employs following technical scheme：
A kind of water-resistance magnesium oxysulfide concrete concrete material, it includes following components by weight：Causticity
90~110 parts of dolomite dust；100~300 parts of sand；100~500 parts of rubble；3~5 parts of additive；Baume
Spend 100~200 parts of the Adlerika for 25~30；Wherein, the additive is phosphoric acid or citric acid, phosphorus
The mixing material of hydrochlorate and flyash, the weight ratio between phosphoric acid or citric acid and phosphate and flyash
It is 1：0.8~1.8：4.5~6.5.
Preferably, the number of the Adlerika is 170~190 parts.
Preferably, the number of the additive is 4 parts.
Preferably, the number of the rubble is 300~400 parts.
Preferably, the particle diameter of the rubble is 1~3cm.
Preferably, in the additive, the weight ratio between phosphoric acid or citric acid and phosphate and flyash
It is 1：1.3：5.
Preferably, the phosphate be ammonium dihydrogen phosphate, calcium dihydrogen phosphate and sodium dihydrogen phosphate in one kind or
It is two or more.
The preparation method of water-resistance magnesium oxysulfide concrete concrete material as described above includes step：S101, general
The caustic dolomite powder, sand, rubble and additive are stirred according to the components by weight percent and mixed；S102、
By magnesium sulfate solid dissolving in water, Adlerika is formed；S103, Adlerika is added to step
In the mixing material that S101 is obtained, it is uniformly mixed, obtains water-resistance magnesium oxysulfide concrete concrete material.
Further, the method also includes the step of preparing the additive：First by the phosphoric acid or lemon
Acid mixes with phosphate and flyash, adds water to remix to form slurry；Then by after the slurry drying
Milling, obtains the additive.
Water-resistance magnesium oxysulfide concrete concrete material provided in an embodiment of the present invention and preparation method thereof, the coagulation
Soil material mainly includes caustic dolomite powder and Adlerika, is MgOMgSO4H2O ternary gels
It is the magnesian of composition, there is better corrosion resistance and water-resistance compared to magnesia oxychloride cement, and
And wherein add phosphoric acid or citric acid with phosphate and flyash as additive, further increase this and mix
The decay resistance and water repelling property of solidifying soil material, the concrete material almost do not have corrosivity to reinforcing bar,
Reinforcing bar can be added in concrete on a large scale, be made armored concrete.After other concrete material hardening
Intensity is high, easy to use.
Brief description of the drawings
Fig. 1 is the technique stream of the preparation method of the water-resistance magnesium oxysulfide concrete concrete material of the embodiment of the present invention
Cheng Tu.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings to of the invention
Specific embodiment is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.
What the embodiments of the present invention for describing shown in accompanying drawing and with reference to the accompanying drawings were merely exemplary, and the present invention
It is not limited to these implementation methods.
The embodiment of the present invention provide firstly a kind of water-resistance magnesium oxysulfide concrete concrete material, and it is included with weight
Measure the following components for calculating：90~110 parts of caustic dolomite powder；100~300 parts of sand；Rubble 100~500
Part；3~5 parts of additive；Baume degrees is 25~30 100~200 parts of Adlerika；Wherein, it is described outer
Plus the mixing material that agent is phosphoric acid or citric acid, phosphate and flyash, phosphoric acid or citric acid and phosphate
And the weight ratio between flyash is 1：0.8~1.8：4.5~6.5.
Further, the embodiment of the present invention additionally provides water-resistance magnesium oxysulfide concrete concrete material as described above
The preparation method of material.Specifically, refering to Fig. 1, the method comprising the steps of：S101, by the caustic dolomite
Powder, sand, rubble and additive are stirred according to the components by weight percent and mixed.It is S102, magnesium sulfate solid is molten
In Xie Yushui, Adlerika is formed.S103, Adlerika is added to the mixing that step S101 is obtained
In material, it is uniformly mixed, obtains water-resistance magnesium oxysulfide concrete concrete material.
Wherein, the additive is prepared according to following technique：First by the phosphoric acid or citric acid and phosphorus
Hydrochlorate and flyash mix, and add water to remix to form slurry；Then will be milled after the slurry drying,
Obtain the additive.
Embodiment 1
Using caustic dolomite powder 100kg, sand 150kg, rubble 200kg (particle diameter is between 1~3cm),
Additive 3kg (between phosphoric acid, ammonium dihydrogen phosphate and flyash according to weight ratio be 1：0.8：4.5 ratio
Example mixing), after being well mixed, the Baume degrees for adding 170kg is 25 Adlerika, mixes equal again
It is even, obtain water-resistance magnesium oxysulfide concrete concrete material.
Water-resistance magnesium oxysulfide concrete concrete material injection experimentses mould obtained above, the demoulding after 24h are supported
After 28 days, test obtains its more than compression strength 40MPa to shield, and the coefficient of softing of month is more than 0.85.Its
Middle addition phosphoric acid, as additive, further increases the resistance to of the concrete material with phosphate and flyash
Corrosive nature and water repelling property, the concrete material of acquisition, almost without corrosivity, can be advised greatly to reinforcing bar
Mould adds reinforcing bar in concrete, is made armored concrete.
Embodiment 2
Using caustic dolomite powder 100kg, sand 100kg, rubble 500kg (particle diameter is between 1~3cm),
Additive 5kg (between phosphoric acid, calcium dihydrogen phosphate and flyash according to weight ratio be 1：1.8：5.5 ratio
Example mixing), after being well mixed, the Baume degrees for adding 200kg is 28 Adlerika, mixes equal again
It is even, obtain water-resistance magnesium oxysulfide concrete concrete material.
Water-resistance magnesium oxysulfide concrete concrete material injection experimentses mould obtained above, the demoulding after 24h are supported
After 28 days, test obtains its more than compression strength 37MPa to shield, and the coefficient of softing of month is more than 0.85.
Embodiment 3
Using caustic dolomite powder 90kg, sand 250kg, rubble 300kg (particle diameter is between 1~3cm),
Additive 4kg (between citric acid, sodium dihydrogen phosphate and flyash according to weight ratio be 1：1.3：5 ratio
Example mixing), after being well mixed, the Baume degrees for adding 190kg is 30 Adlerika, mixes equal again
It is even, obtain water-resistance magnesium oxysulfide concrete concrete material.
Water-resistance magnesium oxysulfide concrete concrete material injection experimentses mould obtained above, the demoulding after 24h are supported
After 28 days, test obtains its more than compression strength 41MPa to shield, and the coefficient of softing of month is more than 0.85.
Embodiment 4
Using caustic dolomite powder 110kg, sand 300kg, rubble 100kg (particle diameter is between 1~3cm),
Additive 4kg (between phosphoric acid, calcium dihydrogen phosphate, sodium dihydrogen phosphate and flyash according to weight ratio be 1：
0.6：0.6：6.5 ratio mixing), after being well mixed, the Baume degrees for adding 100kg is 28 magnesium sulfate
Solution, is well mixed again, obtains water-resistance magnesium oxysulfide concrete concrete material.
Water-resistance magnesium oxysulfide concrete concrete material injection experimentses mould obtained above, the demoulding after 24h are supported
After 28 days, test obtains its more than compression strength 42MPa to shield, and the coefficient of softing of month is more than 0.85.
In sum, water-resistance magnesium oxysulfide concrete concrete material provided in an embodiment of the present invention and its preparation side
Method, the concrete material mainly includes caustic dolomite powder and Adlerika, is MgOMgSO4H2O
Ternary gelling system composition magnesian, compared to magnesia oxychloride cement have better corrosion resistance and
Water-resistance, and phosphoric acid or citric acid and phosphate and flyash are wherein added as additive, further
The decay resistance and water repelling property of the concrete material are improve, the concrete material does not almost have to reinforcing bar
It is corrosive, reinforcing bar can be added in concrete on a large scale, is made armored concrete.The other concrete
Intensity is high after material hardening, easy to use.
The above is only the specific embodiment of the application, it is noted that common for the art
For technical staff, on the premise of the application principle is not departed from, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as the protection domain of the application.
Claims (9)
1. a kind of water-resistance magnesium oxysulfide concrete concrete material, it is characterised in that including by weight with
Lower component：
90~110 parts of caustic dolomite powder；
100~300 parts of sand；
100~500 parts of rubble；
3~5 parts of additive；
Baume degrees is 25~30 100~200 parts of Adlerika；
Wherein, the additive is the mixing material of phosphoric acid or citric acid, phosphate and flyash, phosphoric acid
Or the weight ratio between citric acid and phosphate and flyash is 1：0.8~1.8：4.5~6.5.
2. water-resistance magnesium oxysulfide concrete concrete material according to claim 1, it is characterised in that institute
The number for stating Adlerika is 170~190 parts.
3. water-resistance magnesium oxysulfide concrete concrete material according to claim 1, it is characterised in that institute
The number for stating additive is 4 parts.
4. water-resistance magnesium oxysulfide concrete concrete material according to claim 1, it is characterised in that institute
The number for stating rubble is 300~400 parts.
5. water-resistance magnesium oxysulfide concrete concrete material according to claim 1, it is characterised in that institute
The particle diameter for stating rubble is 1~3cm.
6. water-resistance magnesium oxysulfide concrete concrete material according to claim 1, it is characterised in that institute
State in additive, the weight ratio between phosphoric acid or citric acid and phosphate and flyash is 1：1.3：5.
7., according to any described water-resistance magnesium oxysulfide concrete concrete materials of claim 1-6, its feature exists
One or more in, the phosphate is ammonium dihydrogen phosphate, calcium dihydrogen phosphate and sodium dihydrogen phosphate.
8. the preparation side of a kind of water-resistance magnesium oxysulfide concrete concrete material as described in claim 1-7 is any
Method, it is characterised in that the method comprising the steps of：
S101, the caustic dolomite powder, sand, rubble and additive are stirred according to the components by weight percent
Mixing；
S102, by magnesium sulfate solid dissolving in water, formed Adlerika；
S103, Adlerika is added in the mixing material that step S101 is obtained, is uniformly mixed,
Obtain water-resistance magnesium oxysulfide concrete concrete material.
9. the preparation method of water-resistance magnesium oxysulfide concrete concrete material according to claim 8, it is special
Levy and be, the method also includes the step of preparing the additive：First by the phosphoric acid or citric acid and phosphorus
Hydrochlorate and flyash mix, and add water to remix to form slurry；Then will be milled after the slurry drying,
Obtain the additive.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848110A (en) * | 2020-04-14 | 2020-10-30 | 哈尔滨理工大学 | High-strength anti-bending inorganic artificial stone |
| CN112608125A (en) * | 2020-12-28 | 2021-04-06 | 南京航空航天大学 | Basic magnesium sulfate cement concrete pouring material for fabricated building nodes and preparation method and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111848110A (en) * | 2020-04-14 | 2020-10-30 | 哈尔滨理工大学 | High-strength anti-bending inorganic artificial stone |
| CN112608125A (en) * | 2020-12-28 | 2021-04-06 | 南京航空航天大学 | Basic magnesium sulfate cement concrete pouring material for fabricated building nodes and preparation method and application thereof |
| CN112608125B (en) * | 2020-12-28 | 2022-04-15 | 南京航空航天大学 | Basic magnesium sulfate cement concrete pouring material for fabricated building nodes and preparation method and application thereof |
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