CN107698224A - A kind of concrete with high tenacity - Google Patents
A kind of concrete with high tenacity Download PDFInfo
- Publication number
- CN107698224A CN107698224A CN201711119051.6A CN201711119051A CN107698224A CN 107698224 A CN107698224 A CN 107698224A CN 201711119051 A CN201711119051 A CN 201711119051A CN 107698224 A CN107698224 A CN 107698224A
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- China
- Prior art keywords
- concrete
- high tenacity
- powder
- esters
- methyl amine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C04B28/14—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 calcium sulfate 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
-
- 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)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of concrete with high tenacity, it is related to building material technical field, is made up of following component：Cement, land plaster, miberal powder, blanc fixe, polypropylene fibre, glass fibre, fine sand, carbide slag, phosphorus slag powder, flyash, trihydroxyethyl methyl amine Methylsulfate salt, plural gel；Concrete thermal conductivity factor of the present invention is low, and a kind of concrete with high tenacity prepared by the present invention, not only with relatively low thermal conductivity factor, while concrete has good intensity and impermeability, and especially toughness and ductility is greatly enhanced.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of concrete with high tenacity.
Background technology
Normal concrete is configured by binder materials, thick, thin aggregate and water by proper proportion, then the hardened artificial stone formed
Material.From to concrete section macroscopic view detection, concrete by different sizes and shapes particles of aggregates and it is discontinuous glue
The hydrated cement slurry of knot property medium is formed, in terms of microcosmic angle in micro-structural this two-phase neither equally distributed each other,
Micro-structural is in itself nor homogeneous.The micro-structural of the cement slurry of neighbouring bulky grain aggregate generally with the cement mortar in system or
Mortar ontological existence larger difference, i.e. interfacial transition zone.Because both cement mortar body in concrete and interfacial transition zone contain
There are uneven distribution, different type and quantity solid phase, hole and microcrack, so that concrete is easily by external environment
Influence and cause concrete microcrack to extend, harmful substance intrusion causes concrete deterioration, reduces concrete durability, influences to mix
Coagulate the service life of native structures；The resistance to compression bullet mould of existing concrete is low simultaneously, compression strength and flexural tensile strength also have into
The sky of one step lifting.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of concrete with high tenacity.
The present invention is achieved by the following technical solutions：
A kind of concrete with high tenacity, is made up of following component by weight：Cement 60-80, land plaster 15-20, ore deposit
Powder 12-18, blanc fixe 10-22, polypropylene fibre 1.2-1.8, glass fibre 1.2-1.8, fine sand 50-60, carbide slag 25-
30th, phosphorus slag powder 1-3, flyash 10-15, trihydroxyethyl methyl amine Methylsulfate salt 0.35-0.38, plural gel 20-30.
Further, the specific surface area of the miberal powder is 320m2/ kg, miberal powder fluidity ratio are 85%%, and miberal powder 7d activity refers to
Number ＞ 50%, 28d activity indexs ＞ 70.
Further, the cement is aluminate cement.
Further, the aluminate cement specific surface area 380m2/ kg, 70 μm of square hole screens are tailed over no more than 5%.
Further, the trihydroxyethyl methyl amine Methylsulfate salt is trihydroxyethyl methyl amine Methylsulfate potassium or three hydroxyls
It is any in ethylmethylamine sodium methylsulfate.
Further, the plural gel preparation method is：Esters of silicon acis is dissolved in polar solvent, obtaining mass fraction is
18.5% silicic acid ester solution, the sodium citrate of its quality 1.2% is added into silicic acid ester solution, stirred with 350r/min rotating speeds
After 30min, then aluminium powder is evenly spread in silicic acid ester solution, aluminium powder addition is the 15% of esters of silicon acis quality, is then added again
Add the ethanedioic acid solution that mass fraction is 3.5%, the wherein mol ratio of ethanedioic acid and aluminium powder is 1:1, with 300r/min rotating speeds 50
Stirred 1.5 hours at DEG C, then add cyclodextrin, continue stirring 1.8 hours, wherein becoming cyclodextrin addition as esters of silicon acis quality
10%, still aging 5 hours, obtain plural gel.
Further, the polar solvent is water or ethanol.
The present invention has advantages below compared with prior art：Concrete thermal conductivity factor of the present invention is low, the present invention by using
The polymerizable crosslinked nonionic group such as trihydroxyethyl methyl amine Methylsulfate salt and plural gel forms network structure, so as to both may be used
Adsorpting anion, and can Liquidity limit, because the suction-operated of its orientation substantially increases the mobility of concrete；It is simultaneously multiple
Close gel during concrete drying can a part move to surface and form a kind of diaphragm, this layer of diaphragm can be effective
Raising concrete surface anti crack performance；By adding polypropylene fibre and glass fibre, in the original net of concrete mortar
A new network structure is established on the basis of shape structure, can effectively prevent the extension of inside concrete micro-crack, is improved
The bending tensile strength of concrete；Polypropylene fibre and the synergy of glass fibre and plural gel are added, in concrete
Overlap in random distribution and mutually, play reinforced action, support aggregate, prevent aggregate sinking from isolating, while reduce because secreting
The interconnected pore that water is formed, porosity is reduced, secondly, in course of hardening, each fiber random distribution state, can be cut off
Capillary porosity duct, reduce the dehydration area and capillary dehydration shrinkage tension force of matrix, hinder the migration of moisture, improve hole knot
Structure, it is greatly enhanced so as to improve the intensity of concrete and impermeability, especially toughness and ductility.
Embodiment
Embodiment 1
A kind of concrete with high tenacity, is made up of following component by weight：Cement 60, land plaster 15, miberal powder 12, again
Spar powder 10, polypropylene fibre 1.2, glass fibre 1.2, fine sand 50, carbide slag 25, phosphorus slag powder 1, flyash 10, trihydroxyethyl
Methyl amine Methylsulfate salt 0.35, plural gel 20.
Further, the specific surface area of the miberal powder is 320m2/ kg, miberal powder fluidity ratio are 85%%, and miberal powder 7d activity refers to
Number ＞ 50%, 28d activity indexs ＞ 70.
Further, the cement is aluminate cement.
Further, the aluminate cement specific surface area 380m2/ kg, 70 μm of square hole screens are tailed over no more than 5%.
Further, the trihydroxyethyl methyl amine Methylsulfate salt is trihydroxyethyl methyl amine Methylsulfate potassium or three hydroxyls
It is any in ethylmethylamine sodium methylsulfate.
Further, the plural gel preparation method is：Esters of silicon acis is dissolved in polar solvent, obtaining mass fraction is
18.5% silicic acid ester solution, the sodium citrate of its quality 1.2% is added into silicic acid ester solution, stirred with 350r/min rotating speeds
After 30min, then aluminium powder is evenly spread in silicic acid ester solution, aluminium powder addition is the 15% of esters of silicon acis quality, is then added again
Add the ethanedioic acid solution that mass fraction is 3.5%, the wherein mol ratio of ethanedioic acid and aluminium powder is 1:1, with 300r/min rotating speeds 50
Stirred 1.5 hours at DEG C, then add cyclodextrin, continue stirring 1.8 hours, wherein becoming cyclodextrin addition as esters of silicon acis quality
10%, still aging 5 hours, obtain plural gel.
Further, the polar solvent is water or ethanol.
Embodiment 2
A kind of concrete with high tenacity, is made up of following component by weight：Cement 80, land plaster 20, miberal powder 18, again
Spar powder 22, polypropylene fibre 1.8, glass fibre 1.8, fine sand 60, carbide slag 30, phosphorus slag powder 3, flyash 15, trihydroxyethyl
Methyl amine Methylsulfate salt 0.38, plural gel 30.
Further, the specific surface area of the miberal powder is 320m2/ kg, miberal powder fluidity ratio are 85%%, and miberal powder 7d activity refers to
Number ＞ 50%, 28d activity indexs ＞ 70.
Further, the cement is aluminate cement.
Further, the aluminate cement specific surface area 380m2/ kg, 70 μm of square hole screens are tailed over no more than 5%.
Further, the trihydroxyethyl methyl amine Methylsulfate salt is trihydroxyethyl methyl amine Methylsulfate potassium or three hydroxyls
It is any in ethylmethylamine sodium methylsulfate.
Further, the plural gel preparation method is：Esters of silicon acis is dissolved in polar solvent, obtaining mass fraction is
18.5% silicic acid ester solution, the sodium citrate of its quality 1.2% is added into silicic acid ester solution, stirred with 350r/min rotating speeds
After 30min, then aluminium powder is evenly spread in silicic acid ester solution, aluminium powder addition is the 15% of esters of silicon acis quality, is then added again
Add the ethanedioic acid solution that mass fraction is 3.5%, the wherein mol ratio of ethanedioic acid and aluminium powder is 1:1, with 300r/min rotating speeds 50
Stirred 1.5 hours at DEG C, then add cyclodextrin, continue stirring 1.8 hours, wherein becoming cyclodextrin addition as esters of silicon acis quality
10%, still aging 5 hours, obtain plural gel.
Further, the polar solvent is water or ethanol.
Embodiment 3
A kind of concrete with high tenacity, is made up of following component by weight：Cement 70, land plaster 16, miberal powder 15, again
Spar powder 16, polypropylene fibre 1.5, glass fibre 1.5, fine sand 52, carbide slag 28, phosphorus slag powder 2, flyash 12, trihydroxyethyl
Methyl amine Methylsulfate salt 0.37, plural gel 27.
Further, the specific surface area of the miberal powder is 320m2/ kg, miberal powder fluidity ratio are 85%%, and miberal powder 7d activity refers to
Number ＞ 50%, 28d activity indexs ＞ 70.
Further, the cement is aluminate cement.
Further, the aluminate cement specific surface area 380m2/ kg, 70 μm of square hole screens are tailed over no more than 5%.
Further, the trihydroxyethyl methyl amine Methylsulfate salt is trihydroxyethyl methyl amine Methylsulfate potassium or three hydroxyls
It is any in ethylmethylamine sodium methylsulfate.
Further, the plural gel preparation method is：Esters of silicon acis is dissolved in polar solvent, obtaining mass fraction is
18.5% silicic acid ester solution, the sodium citrate of its quality 1.2% is added into silicic acid ester solution, stirred with 350r/min rotating speeds
After 30min, then aluminium powder is evenly spread in silicic acid ester solution, aluminium powder addition is the 15% of esters of silicon acis quality, is then added again
Add the ethanedioic acid solution that mass fraction is 3.5%, the wherein mol ratio of ethanedioic acid and aluminium powder is 1:1, with 300r/min rotating speeds 50
Stirred 1.5 hours at DEG C, then add cyclodextrin, continue stirring 1.8 hours, wherein becoming cyclodextrin addition as esters of silicon acis quality
10%, still aging 5 hours, obtain plural gel.
Further, the polar solvent is water or ethanol.
Experimental data：The concrete seven d of embodiment compression strength average out to 45.8MPa, rupture strength average out to
3.82MPa, water absorption rate average out to 1.4%, thermal conductivity factor average out to 0.18W/mk；Simple tension first crack strength can reach
18MPa, ultimate strength have very high tensile pressure ratio, simple tension ductility can be maintained at 12%, be existing UHPC close to 27MPa
It is more than 10 times of elongation percentage of material；The mortar 7d of plural gel compression strength average out to 30MPa is not added in embodiment, unidirectionally
Stretching ductility can be maintained at 6%.
Claims (7)
1. a kind of concrete with high tenacity, it is characterised in that be made up by weight of following component：Cement 60-80, stone
Cream powder 15-20, miberal powder 12-18, blanc fixe 10-22, polypropylene fibre 1.2-1.8, glass fibre 1.2-1.8, fine sand 50-
60th, carbide slag 25-30, phosphorus slag powder 1-3, flyash 10-15, trihydroxyethyl methyl amine Methylsulfate salt 0.35-0.38, compound solidifying
Glue 20-30.
2. a kind of concrete with high tenacity as claimed in claim 1, it is characterised in that the specific surface area of the miberal powder is
320m2/ kg, miberal powder fluidity ratio are 85%%, miberal powder 7d activity indexs ＞ 50%, 28d activity indexs ＞ 70.
3. a kind of concrete with high tenacity as claimed in claim 1, it is characterised in that the cement is aluminic acid salt solution
Mud.
4. a kind of concrete with high tenacity as claimed in claim 3, it is characterised in that the aluminate cement compares surface
Product 380m2/ kg, 70 μm of square hole screens are tailed over no more than 5%.
A kind of 5. concrete with high tenacity as claimed in claim 1, it is characterised in that the trihydroxyethyl methyl amine sulphur
Sour methyl esters salt is any in trihydroxyethyl methyl amine Methylsulfate potassium or trihydroxyethyl methyl amine sodium methylsulfate.
A kind of 6. concrete with high tenacity as claimed in claim 1, it is characterised in that the plural gel preparation method
For：Esters of silicon acis is dissolved in polar solvent, the silicic acid ester solution that mass fraction is 18.5% is obtained, is added into silicic acid ester solution
The sodium citrate of its quality 1.2%, after stirring 30min with 350r/min rotating speeds, aluminium powder is then evenly spread into silicic acid ester solution
In, aluminium powder addition is the 15% of esters of silicon acis quality, then adds the ethanedioic acid solution that mass fraction is 3.5%, wherein second two again
The mol ratio of acid and aluminium powder is 1:1, stirred 1.5 hours at 50 DEG C with 300r/min rotating speeds, then add cyclodextrin, continue to stir
Mix 1.8 hours, wherein becoming cyclodextrin addition as the 10% of esters of silicon acis quality, still aging 5 hours, obtain plural gel.
7. a kind of concrete with high tenacity as claimed in claim 6, it is characterised in that the polar solvent is water or second
Alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119051.6A CN107698224A (en) | 2017-11-14 | 2017-11-14 | A kind of concrete with high tenacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711119051.6A CN107698224A (en) | 2017-11-14 | 2017-11-14 | A kind of concrete with high tenacity |
Publications (1)
| Publication Number | Publication Date |
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| CN107698224A true CN107698224A (en) | 2018-02-16 |
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ID=61179478
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711119051.6A Pending CN107698224A (en) | 2017-11-14 | 2017-11-14 | A kind of concrete with high tenacity |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726937A (en) * | 2018-07-10 | 2018-11-02 | 安徽省神洲建材科技有限公司 | A kind of preferable thermal insulation mortar of cracking resistance and preparation method thereof |
| CN109694230A (en) * | 2019-02-15 | 2019-04-30 | 青海民族大学 | A kind of magnesia oxychloride cement regenerated aggregate concrete |
| CN111116119A (en) * | 2019-12-30 | 2020-05-08 | 株洲大禹恒基新材料有限公司 | Green high-strength high-toughness concrete formula |
| CN111233397A (en) * | 2020-01-20 | 2020-06-05 | 武汉轻工大学 | Concrete tunnel lining material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948660A (en) * | 2016-06-14 | 2016-09-21 | 同济大学 | High-strength ultra-high-toughness concrete and preparation method thereof |
-
2017
- 2017-11-14 CN CN201711119051.6A patent/CN107698224A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948660A (en) * | 2016-06-14 | 2016-09-21 | 同济大学 | High-strength ultra-high-toughness concrete and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726937A (en) * | 2018-07-10 | 2018-11-02 | 安徽省神洲建材科技有限公司 | A kind of preferable thermal insulation mortar of cracking resistance and preparation method thereof |
| CN109694230A (en) * | 2019-02-15 | 2019-04-30 | 青海民族大学 | A kind of magnesia oxychloride cement regenerated aggregate concrete |
| CN111116119A (en) * | 2019-12-30 | 2020-05-08 | 株洲大禹恒基新材料有限公司 | Green high-strength high-toughness concrete formula |
| CN111233397A (en) * | 2020-01-20 | 2020-06-05 | 武汉轻工大学 | Concrete tunnel lining material and preparation method thereof |
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Application publication date: 20180216 |