CN108002759A - Water-tight concrete - Google Patents
Water-tight concrete Download PDFInfo
- Publication number
- CN108002759A CN108002759A CN201711360260.XA CN201711360260A CN108002759A CN 108002759 A CN108002759 A CN 108002759A CN 201711360260 A CN201711360260 A CN 201711360260A CN 108002759 A CN108002759 A CN 108002759A
- Authority
- CN
- China
- Prior art keywords
- concrete
- water
- additive
- bentonite
- component
- Prior art date
- 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.)
- Pending
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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
-
- 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
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of water-tight concrete, belongs to building building technical field, is made of cement, aggregate, flyash, bentonite, additive and water, wherein, the additive is made of the component of following mass percents：Oyster shell powder 30 40%, ethylene bis stearamide 15 25%, three note saponin(es 10 20%, triethanolamine 6 12%, bentonite 5 10%, dodecyl dihydroxy ethyl glycine betaine 3 6%, naphthalene sulfonate 2 5%, the additive added in the concrete of the present invention, while antifreeze anti-freezing property is ensured, anti-permeability performance is greatly improved, its seepage-resistant grade reaches more than P12, and being particluarly suitable for the north of cold has concrete the situation of seepage resistance demand such as building etc..
Description
Technical field
The present invention relates to architectural and civil engineering technical field, more particularly to a kind of water-tight concrete.
Background technology
In north cold area, the temperature in winter is very low, usually reaches subzero 20 degrees Celsius, and even up to subzero 45
Ten degrees Celsius.In such place, the requirement of higher is proposed for the resistance to frost of architectural engineering, especially for highway,
Bridge etc., on the one hand needs smooth construction, current general proposition limit construction temperature to take the photograph for subzero 15 at a lower temperature
Family name's degree, i.e. resistance to frost；On the other hand, ultralow temperature can be resistant to for a long time, to be subjected to the test of multigelation, i.e. anti-freezing property.
For the demand of freeze proof resistance to frost, present applicant have developed a kind of freeze proof antifreeze concrete addition
Agent, refers to the Chinese patent application of Application No. 2017107145414, after which is used for concrete, prevents with excellent
Freeze anti-freezing property, intensity is also very high, is particularly suitable for the construction such as highway, bridge.But inventor is built Shihezi of Xinjiang is civilian
Before building construction, when carrying out impervious experiment, its anti-permeability performance is undesirable, such as, using specification embodiment 1 in the patent application
Concrete carries out impervious experiment, and different maximum water pressures is when 4 test specimens do not seep water in one group of 6 test specimen (28d)
0.63MPa, although having reached the standard of water-tight concrete (>=P6), for mixed in the higher place of construction cost, raising
Coagulating the impermeability of soil is highly desirable.
The content of the invention
The goal of the invention of the present invention, is to be directed to above-mentioned problem, there is provided a kind of water-tight concrete.
The technical solution adopted by the present invention is such：A kind of water-tight concrete, by the component group of following weight percentage
Into：
Wherein, the additive is made of the component of following mass percents：
Preparation method is：
First prepare additive：The each component of the additive of the mass ratio is weighed, is then uniformly mixed, it is total to add additive
10% water of quality, containing the organic acid that mass content is 3% in water, is then heated to 95 DEG C, dry after reacting 30min,
Milling, to obtain the final product；
Then concrete is prepared according to the preparation method of normal concrete.
Wherein, aggregate includes river sand and stone, and the stone includes cobblestone, lime stone etc., the particle diameter of stone 2cm with
Under.
Present inventor on the basis of applying before, suitably reduces triethanolamine by largely testing discovery
Content, and suitably adjust preparation method, while add suitable dodecyl dihydroxy ethyl glycine betaine, can significantly improve anti-
Ooze performance.
The dodecyl dihydroxy ethyl glycine betaine of the present invention, is a kind of zwitterionic surfactant, in acid and alkalescence
Under the conditions of be respectively provided with excellent stability, at present generally as the thickener of cosmetics.
Due to adding above-mentioned additive, reach it is excellent it is antifreeze it is freeze proof on the basis of while, its seepage-resistant grade can reach
To more than P12, in terms of antifreeze anti-freezing property, can make normal construction temperature reach subzero 20 degrees Celsius it is even lower, it is minimum
Up to subzero 25 degrees Celsius；Meanwhile there is excellent anti-freezing property.
As preferable technical solution, the additive is made of the component of following weight percentage：
The microcrystalline white mica powder of the present invention, is a kind of new nonmetallic mineral resource, main mineral constituent is big 2M1
Type muscovite, submember is a small amount of quartz, micro chlorite and trace potassium feldspar, by the prosperous torch mining industry in Sichuan in 1997
Find first at home.It is noteworthy characterized by：Genetic type is new, crystallizable mineral fine size, and ore muscovite content is high, quality
Good, deposit scale is big.Current microcrystal muscovite ore deposit has carried out scale mining and powder processing, microcrystalline white mica powder product
Insulating (insulating pouring sealant), painting the field extensive uses such as (anticorrosive paint), plastics, rubber (PVC material), ceramics,
To substitute traditional sericite mineral material.But the report of application is had no in concrete.
After adding suitable microcrystalline white mica powder, anti-freezing property can be further improved.
As preferable technical solution, the particle diameter of the oyster shell powder is -1000 mesh of 500 mesh.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：Add in the concrete of the present invention
The additive entered, while antifreeze anti-freezing property is ensured, is greatly improved anti-permeability performance, its seepage-resistant grade reach P12 with
On, being particluarly suitable for the north of cold has concrete the situation of seepage resistance demand such as building etc..
Embodiment
The present invention is described in detail below.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1：
A kind of water-tight concrete, is made of the component of following weight percentage：
Wherein, the additive is made of the component of following mass percents：
Wherein, the particle diameter of the oyster shell powder is 600 mesh；Aggregate includes river sand and stone, the stone include cobblestone,
Lime stone etc., the particle diameter of stone is in below 2cm；
Preparation method is：
First prepare additive：The each component of the additive of the mass ratio is weighed, is then uniformly mixed, it is total to add additive
10% water of quality, containing the organic acid that mass content is 3% or so in water, is then heated to 95 DEG C, after reacting 30min,
It is dry, milling, to obtain the final product；
Then it is prepared " Concrete " according to the preparation method of normal concrete.
Embodiment 2：
A kind of water-tight concrete, is made of the component of following weight percentage：
Wherein, the additive is made of the component of following mass percents：
Wherein, the particle diameter of the oyster shell powder is 600 mesh；Aggregate includes river sand and stone, the stone include cobblestone,
Lime stone etc., the particle diameter of stone is in below 2cm；
Preparation method is：
First prepare additive：The each component of the additive of the mass ratio is weighed, is then uniformly mixed, it is total to add additive
10% water of quality, containing the organic acid that mass content is 5% or so in water, is then heated to 85 DEG C, after reacting 30min,
It is dry, milling, to obtain the final product；
Then " concrete B " is prepared according to the preparation method of normal concrete
Comparative example 1 and 2 is respectively the Examples 1 and 2 that the specification of Application No. 2017107145414 is recorded：
Resistance to frost is tested
According to
The method of 106396458 A of CN, tests the icing feelings of Concrete, concrete B, comparative example 1 and comparative example 2 respectively
Condition, water-reducing rate and setting time, its result：
At -20 DEG C, do not freeze；At -25 DEG C, concrete B freezes, remaining is without freezing；
Concrete, concrete B, the water-reducing rate of comparative example 1 and comparative example 2 are followed successively by 25.1%, 25.9%, 26.5% and
29.9%；
Concrete, concrete B, the setting time of comparative example 1 and comparative example 2 be respectively 4.1h, 3.9h, 3.9h and
3.2h。
Strength character is tested
Method according to GB/T 50081-2016 tests the intensity test after conserving 28 days, as a result：Concrete, mix
Intensity after solidifying soil B, comparative example 1 and comparative example 2 conserve 28 days is respectively 85.9MPa, 90.5MPa, 85.6MPa and 90.1MPa.
Anti-freezing property is tested
1. according to the related request of GB 50164-2011, the anti-freezing property of the above-mentioned various concrete of test, as a result, coagulation
Native A, concrete B, comparative example 1 and 2 freeze proof grade of comparative example are respectively F502, F516, F511 and F563；
2. 25 circulating freezing resistance intensity of circulation losses of test, as a result, Concrete, concrete B, comparative example 1 and contrast
The loss of strength of example 2 is respectively 2.9%, 2.1%, 2.6% and 1.6%.
Anti-permeability performance is tested
According to GB 50164《Standard for quality control of concrete》Regulation, test Concrete, concrete B, 1 and of comparative example
Comparative example 2 conserve 28 days after concrete impermeability, difference when 4 test specimens seep waters in one group of 6 test specimen during experiment
Maximum water pressure, as a result, test Concrete, concrete B, comparative example 1 and 2 impermeability pressure of comparative example are respectively 1.39MPa
1.43MPa, 0.63MPa and 0.65MPa.
Test Concrete, concrete B, the permeated height ratio of comparative example 1 and comparative example 2 are respectively 15.6%, 15.3%,
28.1% and 27.9%.
Claims (3)
1. a kind of water-tight concrete, it is characterised in that be made of the component of following weight percentage：
Cement 20-25%
Aggregate 55-65%
Flyash 2-5%
Bentonite 2-5%
Additive 1-3%
Water 5-10%；
Wherein, the additive is made of the component of following mass percents：
Oyster shell powder 30-40%
Ethylene bis stearamide 15-25%
Three note saponin(e 10-20%
Triethanolamine 6-12%
Bentonite 5-10%
Dodecyl dihydroxy ethyl glycine betaine 3-6%
Naphthalene sulfonate 2-5%.
2. water-tight concrete according to claim 1, it is characterised in that the additive by following weight percentage group
It is grouped into：
Oyster shell powder 30-40%
Ethylene bis stearamide 15-25%
Three note saponin(e 10-20%
Triethanolamine 6-12%
Bentonite 5-10%
Dodecyl dihydroxy ethyl glycine betaine 3-6%
Naphthalene sulfonate 2-5%
Microcrystalline white mica powder 2-5%.
3. water-tight concrete according to claim 1, it is characterised in that the particle diameter of the oyster shell powder is 500 mesh -1000
Mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711360260.XA CN108002759A (en) | 2017-12-18 | 2017-12-18 | Water-tight concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711360260.XA CN108002759A (en) | 2017-12-18 | 2017-12-18 | Water-tight concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108002759A true CN108002759A (en) | 2018-05-08 |
Family
ID=62059550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711360260.XA Pending CN108002759A (en) | 2017-12-18 | 2017-12-18 | Water-tight concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108002759A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919924A (en) * | 2005-08-26 | 2007-02-28 | 建筑技术研究有限公司 | Powdery polymer composition based on polyether carboxylate |
| CN104003642A (en) * | 2014-06-12 | 2014-08-27 | 赵月 | Concrete admixture and application thereof |
| CN105174853A (en) * | 2015-10-28 | 2015-12-23 | 苏州奥莱鑫建材有限公司 | Cold-resistant concrete |
-
2017
- 2017-12-18 CN CN201711360260.XA patent/CN108002759A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1919924A (en) * | 2005-08-26 | 2007-02-28 | 建筑技术研究有限公司 | Powdery polymer composition based on polyether carboxylate |
| CN104003642A (en) * | 2014-06-12 | 2014-08-27 | 赵月 | Concrete admixture and application thereof |
| CN105174853A (en) * | 2015-10-28 | 2015-12-23 | 苏州奥莱鑫建材有限公司 | Cold-resistant concrete |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180508 |