CN110218016A - The strong strong concrete agent of impervious fold resistance and its concrete - Google Patents
The strong strong concrete agent of impervious fold resistance and its concrete Download PDFInfo
- Publication number
- CN110218016A CN110218016A CN201910525938.8A CN201910525938A CN110218016A CN 110218016 A CN110218016 A CN 110218016A CN 201910525938 A CN201910525938 A CN 201910525938A CN 110218016 A CN110218016 A CN 110218016A
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- China
- Prior art keywords
- concrete
- parts
- strong
- agent
- impervious
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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
- C04B28/02—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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
-
- 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
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention discloses a kind of strong concrete agents that impervious fold resistance is strong, and the hardening agent raw material includes following components by weight: 1-5 parts of nanometer calcium carbonates, 1-3 parts of nano-aluminium oxides, 0-4 parts of glass fibres, 0-4 parts of naphthalene water reducers；With concrete mix favorable working performance, the hydration of each component can be coordinated, gap is filled, while improving the toughness of concrete, improve the impervious fracture resistance energy of concrete, extend the service life of concrete.The simple production process of the strong concrete agent, low in cost, raw material is extensive, pollution-free, and low energy consumption is easy to large-scale industrial production.
Description
Technical field
The present invention relates to the field of building materials, in particular to the strong strong concrete agent of impervious fold resistance and its concrete.
Background technique
With the rapid development of social economy, to infrastructure construction, more stringent requirements are proposed, but concrete gravity is big, crisp
The short slabs such as property is big, tensile strength is low limit its application.It although is many that high performance concrete overcomes normal concrete
Disadvantage has both high workability, high compressive strength and high-durability, but there are still toughness it is low, impact resistance is poor the problems such as, therefore close
It is extremely urgent in the fracture toughness problem for improving concrete.
At present mostly increase toughness of concrete be by adding of fiber, although improve concrete toughness and tension it is strong
Degree, but easy to knot groups when fiber concrete stirring, concrete workability is poor, and pumping difficulties are difficult to construct, and anti-permeability performance is not
It is good, especially for ocean engineering, if the bad corrosion that can be easy to cause steel fibre of steel fiber reinforced concrete anti-permeability performance, makes to mix
Solidifying soil premature degradation.The anti-permeability performance for improving concrete is by adding some mineral admixtures, including flyash, silicon ash and one
A little nano materials etc., they are single raising concrete impermeability or fracture resistance, if concrete can be made with good
While good anti-permeability performance, it may have good fracture resistance, it can will it is suitable for ocean engineerings.
Nano material size is small, can hole in filling concrete stone, its compaction rate is improved, so that it is strong to improve it
Degree；On the other hand, since hole is reduced, water mudrock microcosmos structure is more uniform, concentrates internal stress when its stress deformation
Degree reduces, and avoids Behavior of Hardened Cement Paste and destroys since stress is concentrated cracked.Wherein nanometer calcium carbonate and matrix have very strong
Interaction ability, in the composite with the enhanced propertied performance of toughening.Due to the fine of Nano particles of calcium carbonate,
Its crystal structure and Electronic Structure change, and produce quantum size effect, small ruler that ordinary calcium carbonate does not have
Very little effect, skin effect and macroscopic quantum effect improve cement strength so as to promote the aquation of cement.By nano-calcium carbonate
Calcium material is applied in concrete, and the cost of material requested is lower relative to nano silica, usual nano silica material
The price of material is 10 times of nanometer calcium carbonate, by experiments have shown that, nano silica and nanometer calcium carbonate are for concrete
It influences roughly the same, the intensity and durability of concrete can be obviously improved.In addition, aluminum oxide is cement granules chemical combination
Important component in object, nano-aluminium oxide and cement have natural compatibility, and nano-aluminium oxide has
There are high intensity and preferable toughness, the activity with higher in hydrated reaction of cement.
In addition, its main component of glass fibre is silica, aluminium oxide, calcium oxide, boron oxide, magnesia, sodium oxide molybdena
Deng the intensity and impermeability of concrete can also can be improved while improving toughness, reduce porosity with subparticipation aquation
Energy.
Summary of the invention
The purpose of the present invention is to provide a kind of strong concrete agent that impervious fold resistance is strong and its concrete, with concrete
Mixture favorable working performance can be improved the impervious fracture resistance energy of concrete, extend the service life of concrete.
The strong strong concrete agent of impervious fold resistance of the invention, the hardening agent raw material include with the following group by weight
Point: 1-5 parts of nanometer calcium carbonates, 1-3 parts of nano-aluminium oxides, 0-4 parts of glass fibres, 0-4 parts of naphthalene water reducers.
Further, the hardening agent raw material includes following components by weight: 3 parts of nanometer calcium carbonates, 2 parts of three oxygen of nanometer
Change two aluminium, 2 parts of glass fibres, 2 parts of naphthalene water reducers；
Further, the nanometer calcium carbonate, nano-aluminium oxide diameter less than 100 nanometers；
Further, the glass fiber diameter 0.2mm, length 7-15mm；
Further, the solid content of the naphthalene water reducer is 38%, water-reducing rate 20%.
The invention further relates to a kind of concrete, raw material includes hardening agent as described in claim 1, the hardening agent volume
For the 0.5-2.0% of cementitious material quality.
Further, concrete further includes cement, flyash, stone, normal sand；
Further, the cement is PO42.5, specific surface area 400m2/ kg, presetting period 150min, final setting time 240min；
Further, the fine coal gray density 2.57g/cm3, fineness 6.4%, loss on ignition 3.0%, water demand ratio 92&；
Further, the stone maximum particle diameter 16-20mm, it is well-graded.
Value of the invention is that: the strong strong concrete agent of impervious fold resistance of the invention and its concrete, with coagulation
Native mixture favorable working performance can coordinate the hydration of each component, fill gap, while improving the toughness of concrete, mention
The impervious fracture resistance energy of high concrete, extends the service life of concrete.The simple production process of the strong concrete agent, at
This is cheap, and raw material is extensive, and pollution-free, low energy consumption is easy to large-scale industrial production.
Specific embodiment
Embodiment below is convenient for better understanding the present invention, but the contents of the present invention are not limited solely to following implementation
Example.
Embodiment one
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 1 part of nanometer calcium carbonate, 1 part of nano-aluminium oxide, 1 part of glass fibre, 1 part of naphthalene water reducer.
The strong strong concrete agent of the impervious fold resistance is pressed the 0.5% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight:
48 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, the good maximum particle diameter of gradation be 16-20mm 130 parts of stone,
90 parts of normal sand, 22 parts of water.
Embodiment two
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 1 part of nanometer calcium carbonate, 1 part of nano-aluminium oxide, 2 parts of glass fibres, 2 parts of naphthalene water reducers.
The strong strong concrete agent of the impervious fold resistance is pressed the 0.5% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight:
46 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, the good maximum particle diameter of gradation be 16-20mm 126 parts of stone,
80 parts of normal sand, 21 parts of water.
Embodiment three
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 2 parts of nanometer calcium carbonates, 3 parts of nano-aluminium oxides, 2 parts of glass fibres, 2 parts of naphthalene water reducers.
The strong strong concrete agent of the impervious fold resistance is pressed the 1.0% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight:
47 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, the good maximum particle diameter of gradation be 16-20mm 131 parts of stone,
87 parts of normal sand, 22 parts of water.
Example IV
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 3 parts of nanometer calcium carbonates, 3 parts of nano-aluminium oxides, 2 parts of glass fibres, 2 parts of naphthalene water reducers.
The strong strong concrete agent of the impervious fold resistance is pressed the 1.5% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight:
50 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, the good maximum particle diameter of gradation be 16-20mm 132 parts of stone,
91 parts of normal sand, 23 parts of water.
Embodiment five
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 4 parts of nanometer calcium carbonates, 2 parts of nano-aluminium oxides, 1 part of glass fibre, 1 part of naphthalene water reducer.
The strong strong concrete agent of the impervious fold resistance is pressed the 1.5% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight:
46 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, the good maximum particle diameter of gradation be 16-20mm 135 parts of stone,
95 parts of normal sand, 22 parts of water.
Embodiment six
The strong strong concrete agent of the impervious fold resistance of the present embodiment, the hardening agent raw material is by weightIncluding with the following group Point: 5 parts of nanometer calcium carbonates, 3 parts of nano-aluminium oxides, 3 parts of glass fibres, 4 parts of naphthalene water reducers.
The strong strong concrete agent of the impervious fold resistance is pressed the 1.5% of cementitious material quality, is incorporated into and mixes and stirs concrete
In, it is conserved in standard curing room, resistance to compression, flexural strength and chloride ion resistance grade of the record after 3 days, 7 days, 28 days, wherein
Concrete mix includes following components by weight: 45 parts of PO42.5 cement, 2.57g/cm35 parts of flyash, gradation it is good
Good maximum particle diameter be 16-20mm 88 parts of 120 parts of stone, normal sand, 20 parts of water.
The test result of each embodiment is as shown in table 1:
As can be seen from the above table, the resistance to compression of 1-6 of the embodiment of the present invention, flexural strength are improved, and resisting chloride ion penetration performance is also substantially
It improves.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field
Technical staff do not depart from claims determine the spirit and scope of the present invention under conditions of, can to the above content into
The various modifications of row, therefore the scope of the present invention is not limited in above explanation, but by the range of claims
Come what is determined, all within the spirits and principles of the present invention, made any modification, equivalent replacement, improvement etc. be should be included in
Within protection scope of the present invention.
Claims (8)
1. a kind of strong concrete agent that impervious fold resistance is strong, it is characterised in that: the hardening agent raw material includes by weight
Following components: 1-5 parts of nanometer calcium carbonates, 1-3 parts of nano-aluminium oxides, 0-4 parts of glass fibres, 0-4 parts of naphthalene water reducers.
2. strong concrete agent according to claim 1, it is characterised in that: the hardening agent raw material includes by weight
Following components: 3 parts of nanometer calcium carbonates, 2 parts of nano-aluminium oxides, 2 parts of glass fibres, 2 parts of naphthalene water reducers.
3. strong concrete agent according to claim 1, it is characterised in that: the nanometer calcium carbonate, the oxidation of nanometer three two
The diameter of aluminium is less than 100 nanometers.
4. strong concrete agent according to claim 1, it is characterised in that: the glass fiber diameter 0.2mm, length 7-
15mm。
5. strong concrete agent according to claim 1, it is characterised in that: the solid content of the naphthalene water reducer is 38%,
Water-reducing rate is 20%.
6. a kind of concrete, it is characterised in that: raw material includes strong concrete agent as described in claim 1, the hardening agent
Volume is the 0.5-2.0% of cementitious material quality.
7. concrete according to claim 6, it is characterised in that: further include cement, flyash, stone, normal sand.
8. concrete according to claim 7, it is characterised in that: the cement is PO42.5, specific surface area 400m2/
Kg, presetting period 150min, final setting time 240min；The fine coal gray density 2.57g/cm3, fineness 6.4%, loss on ignition 3.0%,
Water demand ratio 92&；The stone maximum particle diameter 16-20mm, it is well-graded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525938.8A CN110218016A (en) | 2019-06-18 | 2019-06-18 | The strong strong concrete agent of impervious fold resistance and its concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525938.8A CN110218016A (en) | 2019-06-18 | 2019-06-18 | The strong strong concrete agent of impervious fold resistance and its concrete |
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| CN110218016A true CN110218016A (en) | 2019-09-10 |
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| CN109437703A (en) * | 2018-12-24 | 2019-03-08 | 射阳县华厦混凝土有限公司 | A kind of bituminous concrete filler and bituminous concrete |
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2019
- 2019-06-18 CN CN201910525938.8A patent/CN110218016A/en active Pending
Patent Citations (9)
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| CN104058652A (en) * | 2014-05-29 | 2014-09-24 | 安徽华塑股份有限公司 | High-strength concrete and preparation method thereof |
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