CN105948559B - A kind of negative temperature concrete antifreezing agent - Google Patents
A kind of negative temperature concrete antifreezing agent Download PDFInfo
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- CN105948559B CN105948559B CN201610289102.9A CN201610289102A CN105948559B CN 105948559 B CN105948559 B CN 105948559B CN 201610289102 A CN201610289102 A CN 201610289102A CN 105948559 B CN105948559 B CN 105948559B
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- raw material
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- concrete
- negative temperature
- antifreezing agent
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Classifications
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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
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/60—Agents for protection against chemical, physical or biological attack
- C04B2103/601—Agents for increasing frost resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of negative temperature concrete antifreezing agent, it is characterised in that the mass percent that its raw material components and each component account for raw material total amount is respectively：Polycarboxylate high performance water-reducing agent 18%~25%, antifreezing component 5%~10%, resistance rust component 0.05~1.2%, organic alcohol amine 0.1%~0.5%, sodium alkyl sulfonate 0.02~0.06%, water 65%~72%.Antifreezing agent of the present invention can effectively improve concrete reclaimed water under 30 DEG C~10 DEG C subzero temperatures and freeze caused frost heave stress, be advantageous to improve early age strength of concrete, strengthen freezing tolerance, environmental protection is without chlorion, cost is cheap, stable performance.
Description
Technical field
The present invention relates to concrete admixture application field, and in particular to a kind of negative temperature concrete antifreezing agent.
Background technology
Northern China and Qinghai-xizang Plateau Region, duration in winter length, with the development of engineering construction, very long cold gas
Temperature brings problems to concreting in cold weather.Under subzero temperature environment, reasonable employment antifreezing agent is to reduce concrete early stage
One of disease and approach of raising endurance performance of concrete.Freezing point generally is reduced by adding Nacl in concrete, can
To ensure the aqueous water under certain subzero temperature in concrete needed for hydrated cementitious.CN 105110694A, which disclose a kind of concrete, to be prevented
Freeze agent, antifreezing component is sodium sulphate, and volume is too high in concrete to cause total alkali content to increase, and it is anti-to produce Plant ecology
Should, greatly infringement is produced to concrete.CN103755214 A disclose a kind of concrete antifreezer, do not have in its raw material composition
Diminishing component, used in -10 DEG C of effects, it is difficult to meet extremely cold weather construction.Early-strength anti-freezing method is used mostly at present, in concrete
Middle introducing accelerating component and diminishing component, concrete early strong intensity is improved as early as possible, diminishing concrete water amount avoids subzero temperature pair
Adverse effect caused by Frozen damaged concrete.
The content of the invention
The invention aims to improve existing antifreezing agent to provide for the technical deficiency in winter negative temperature concrete
A kind of negative temperature concrete antifreezing agent, concrete can be effectively improved at low ambient temperatures because osmotic pressure and turgor pressure act on,
Negative effect, significantly reduces frost-heave force to caused by endurance performance of concrete and intensity.
The technical scheme is that：A kind of negative temperature concrete antifreezing agent, it is characterised in that its raw material components and component account for
The mass percent of raw material total amount is respectively：
It is preferred that above-mentioned polycarboxylate high performance water-reducing agent is that methyl allyl polyoxyethylene ether-maleic anhydride molecule grafting is poly-
Compound or methyl allyl polyoxyethylene ether-acroleic acid macromolecular graft polymers；
It is preferred that above-mentioned antifreezing component is ethylene glycol, calcium nitrate or potassium carbonate；
It is preferred that above-mentioned resistance rust component is sodium monofluorophosphate or diethylenetriamine；
It is preferred that above-mentioned organic alcohol amine is diethanol monoisopropanolamine, acrylamide, diglycol or two three second two of contracting
Alcohol；
It is preferred that abovementioned alkyl sodium sulfonate is dodecyl sodium sulfate, myristyl sodium sulfonate or sodium cetanesulfonate.
Present invention also offers the preparation method of above-mentioned negative temperature concrete antifreezing agent, it is concretely comprised the following steps：According to quality hundred
Divide than weighing each raw material, then by each raw material weighed in reactor, be placed in the water-bath that temperature is 40~60 DEG C and stir
Uniformly, that is, a kind of negative temperature concrete antifreezing agent is obtained.
Beneficial effect：
The present invention chooses high-performance water reducing agent component, sodium-free salt antifreezing component, resistance rust component, accelerating component and bleed group
Point, only containing micro alkali content, no chlorine is corrosion-free, significantly improves the freeze-proof of concrete under -30 DEG C~-10 DEG C subzero temperature environment
Energy, early strength and endurance quality.The invention is not in lamination, and preparation technology is simple, raw material is environment friendly and pollution-free, is adapted to
Large-scale promotion uses.
Embodiment
Example 1
A kind of preparation method of negative temperature concrete is：
Step 1：Each raw material is weighed according to mass percent
Step 2：By each raw material weighed in reactor, it is placed in the water-bath that temperature is 45 DEG C and stirs, produce
To a kind of negative temperature concrete antifreezing agent.According in 2.8% incorporation concrete of binder materials, -30 DEG C of environment conserve.
Example 2
A kind of preparation method of negative temperature concrete is：
Step 1：Each raw material is weighed according to mass percent
Step 2：By each raw material weighed in reactor, it is placed in the water-bath that temperature is 40 DEG C and stirs, produce
To a kind of negative temperature concrete antifreezing agent.According in 2.8% incorporation concrete of binder materials, -30 DEG C of environment conserve.
Example 3
A kind of preparation method of negative temperature concrete is：
Step 1：Each raw material is weighed according to mass percent
Step 2：By each raw material weighed in reactor, it is placed in the water-bath that temperature is 50 DEG C and stirs, produce
To a kind of negative temperature concrete antifreezing agent.According in 2.8% incorporation concrete of binder materials, -15 DEG C of environment conserve.
Example 4
A kind of preparation method of negative temperature concrete is：
Step 1：Each raw material is weighed according to mass percent
Step 2：By each raw material weighed in reactor, it is placed in the water-bath that temperature is 60 DEG C and stirs, produce
To a kind of negative temperature concrete antifreezing agent.According in 2.8% incorporation concrete of binder materials, -10 DEG C of environment conserve.
1~4 every technical performance of embodiment is according to JC475-2004《Concrete antifreezer standard》Detection, with commercially available antifreeze
As a comparison case, according in 2.8% incorporation concrete of binder materials, -15 DEG C of environment conserve agent sample 1.Test result is as follows
Table.
Claims (2)
1. a kind of negative temperature concrete antifreezing agent, it is characterised in that its raw material components and each component account for the mass percent of raw material total amount
Respectively：
Polycarboxylate high performance water-reducing agent 18% ~ 25%
Antifreezing component 5% ~ 10%
Resistance rust component 0.05 ~ 1.2%
Organic alcohol amine 0.1% ~ 0.5%
Sodium alkyl sulfonate 0.02 ~ 0.06%
Water 65% ~ 72%；
Wherein described polycarboxylate high performance water-reducing agent is that methyl allyl polyoxyethylene ether-maleic anhydride molecule is graft-polymerized
Thing or methyl allyl polyoxyethylene ether-acroleic acid macromolecular graft polymers；Described antifreezing component is ethylene glycol, calcium nitrate
Or potassium carbonate；Described resistance rust component is sodium monofluorophosphate or diethylenetriamine；Described organic alcohol amine is diethanol list isopropyl
Hydramine, acrylamide, diglycol or triethylene-glycol；Described sodium alkyl sulfonate is dodecyl sodium sulfate, ten
Tetraalkyl sodium sulfonate or sodium cetanesulfonate.
2. a kind of method for preparing negative temperature concrete antifreezing agent as claimed in claim 1, it is concretely comprised the following steps：According to quality hundred
Divide than weighing each raw material, then by each raw material weighed in reactor, be placed in the water-bath that temperature is 40 ~ 60 DEG C and stir
It is even, that is, obtain negative temperature concrete antifreezing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289102.9A CN105948559B (en) | 2016-05-04 | 2016-05-04 | A kind of negative temperature concrete antifreezing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289102.9A CN105948559B (en) | 2016-05-04 | 2016-05-04 | A kind of negative temperature concrete antifreezing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105948559A CN105948559A (en) | 2016-09-21 |
| CN105948559B true CN105948559B (en) | 2017-11-28 |
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ID=56913852
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610289102.9A Active CN105948559B (en) | 2016-05-04 | 2016-05-04 | A kind of negative temperature concrete antifreezing agent |
Country Status (1)
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| CN (1) | CN105948559B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095804A (en) * | 2018-09-28 | 2018-12-28 | 河南寰球航空装备科技有限公司 | A kind of concrete antifreezer and preparation method thereof |
| CN109776017A (en) * | 2019-02-15 | 2019-05-21 | 山东鲁班建设集团总公司 | A kind of composite concrete antifreeze and preparation method thereof |
| CN113072316A (en) * | 2021-03-03 | 2021-07-06 | 中国矿业大学(北京) | Chlorine-free concrete antifreezing agent and preparation method and application thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616583A (en) * | 2003-11-14 | 2005-05-18 | 王建国 | Method for producing anti-freezer |
| CN102140021B (en) * | 2011-05-13 | 2013-02-13 | 河北铁园科技发展有限公司 | Cement concrete antifreezer |
| CN102320770A (en) * | 2011-09-13 | 2012-01-18 | 武汉理工大学 | Efficient liquid antifreezing agent for concrete, and preparation method thereof |
| CN105503013B (en) * | 2015-12-22 | 2017-12-19 | 河南科之杰新材料有限公司 | A kind of liquid concrete early strength antifreezing agent and preparation method thereof |
| CN105503010A (en) * | 2015-12-30 | 2016-04-20 | 新疆玉鑫蕊科技开发有限责任公司 | Polycarboxylic acid type concrete antifreezer |
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| CN105948559A (en) | 2016-09-21 |
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Address after: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant after: JIANGSU ARIT NEW MATERIALS CO., LTD. Address before: Zhongshan science and Technology Park Huixin Liuhe road Nanjing District 210048 Jiangsu province No. 22 Applicant before: JIANGSU ARIT NEW MATERIALS CO., LTD. |
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Address after: 210048 Huixin Road, Zhongshan science and Technology Park, Liuhe District, Nanjing, Jiangsu 22 Patentee after: Jiangsu Olite New Materials Co., Ltd. Address before: 210048 Huixin Road, Zhongshan science and Technology Park, Liuhe District, Nanjing, Jiangsu 22 Patentee before: JIANGSU ARIT NEW MATERIALS CO., LTD. |