CN106854048A - polycarboxylate additive and preparation method thereof - Google Patents
polycarboxylate additive and preparation method thereof Download PDFInfo
- Publication number
- CN106854048A CN106854048A CN201510903124.5A CN201510903124A CN106854048A CN 106854048 A CN106854048 A CN 106854048A CN 201510903124 A CN201510903124 A CN 201510903124A CN 106854048 A CN106854048 A CN 106854048A
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- Prior art keywords
- parts
- additive
- concrete
- polycarboxylate
- polycarboxylate additive
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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
- C04B2103/10—Accelerators; Activators
- C04B2103/12—Set accelerators
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of polycarboxylate additive and preparation method thereof, belong to technical field of concrete.Technical problem solved by the invention there is provided a kind of polycarboxylate additive, and the additive can improve concrete early mechanics characteristics.Polycarboxylate additive of the present invention is made up of the component of following weight proportion：Monoethanolamine 1-5 parts, triethanolamine 2-6 parts, triisopropanolamine 4-6 parts, sodium sulphate 16-22 parts, water 70-90 parts.The consumption of polycarboxylate additive of the present invention is the 0.5-1.5% of gel material content, concrete 16h compression strength can be made to improve more than 65%, 1d compression strength improves more than 50%, 3d compression strength improves more than 30%, 28d compression strength is not reduced, concrete early mechanics characteristics are significantly improved, the concrete curing cycle is shortened, had broad application prospects.
Description
Technical field
The present invention relates to a kind of polycarboxylate additive and preparation method thereof, belong to technical field of concrete.
Background technology
With developing rapidly for concrete industry, the weight that concrete performance increasingly obtains people is improved using concrete admixture
Depending on.Polycarboxylate additive with tradition how be, compared with the condensation polymer type additive such as melamine due to volume is low, good dispersion,
Oneself becomes global study hotspot and development priority to the advantages of free degree is big on molecular structure, is referred to as third generation super plasticizer.
Polycarboxylate additive has delayed the aquation of cement to a certain extent in the market, when particularly early stage temperature is low, due to morning
Phase strength development is slow, limits its use in cold climates.Even under normal temperature condition, concrete 1d pressure resistances
Degree is also only capable of reaching the 20-30% of design strength, and 3d compression strength reaches 40% of design strength or so.In addition concrete is resistance to
Long sex chromosome mosaicism increasingly causes the attention of building engineer, and a large amount of mineral admixtures are applied to improvement agent on crack resistance of concrete ring in concrete
Border erosion problem, but most of mineral admixture significantly reduces the early mechanics characteristics of concrete, this also had influence on its
The wider application of building materials field.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of polycarboxylate additive, and the additive can improve concrete in early days
Mechanical property.
Polycarboxylate additive of the present invention is made up of the component of following weight proportion：Monoethanolamine 1-5 parts, triethanolamine 2-6 parts,
Triisopropanolamine 4-6 parts, sodium sulphate 16-22 parts, water 70-90 parts.
Further, in order to improve the performance of polycarboxylate additive, above-mentioned polycarboxylate additive is preferably by following weight proportion
Component composition：3 parts of monoethanolamine, 3 parts of triethanolamine, 4 parts of triisopropanolamine, 20 parts of sodium sulphate, 80 parts of water.
Present invention also offers the preparation method of above-mentioned polycarboxylate additive, it comprises the following steps：
A, 50-55 DEG C is heated water to, monoethanolamine, triethanolamine and triisopropanolamine are then added by weight ratio, mixed；
B, sodium sulphate is added, mixed, obtain final product polycarboxylate additive.
The consumption of polycarboxylate additive of the present invention is the 0.5-1.5% of gel material content, can put forward concrete 16h compression strength
More than 65%, 1d compression strength high improves more than 50%, 3d compression strength raising, more than 30%, 28d compression strength and does not reduce, bright
It is aobvious to improve concrete early mechanics characteristics, the concrete curing cycle is shortened, have broad application prospects.
Specific embodiment
Polycarboxylate additive of the present invention is made up of the component of following weight proportion：Monoethanolamine 1-5 parts, triethanolamine 2-6 parts,
Triisopropanolamine 4-6 parts, sodium sulphate 16-22 parts, water 70-90 parts.
Further, in order to improve the performance of polycarboxylate additive, above-mentioned polycarboxylate additive is preferably by following weight proportion
Component composition：3 parts of monoethanolamine, 3 parts of triethanolamine, 4 parts of triisopropanolamine, 20 parts of sodium sulphate, 80 parts of water.
Polycarboxylate additive of the present invention is compounded by the organic amine and sodium sulphate matched using specified weight, compared to identical weight
Single organic amine and the compounding of sulfate, it is more significantly that it improves concrete early mechanics characteristics effect.
Present invention also offers the preparation method of above-mentioned polycarboxylate additive, it comprises the following steps：
A, 50-55 DEG C is heated water to, monoethanolamine, triethanolamine and triisopropanolamine are then added by weight ratio, mixed；
B, sodium sulphate is added, mixed, obtain final product polycarboxylate additive.
Specific embodiment of the invention is further described with reference to embodiment, does not therefore limit the present invention to institute
Among the scope of embodiments stated.
The preparation of the polycarboxylate additive of the present invention of embodiment 1
80kg water is heated to 50-55 DEG C, monoethanolamine 3kg, triethanolamine 3kg and triisopropanolamine 4kg is subsequently adding, mixed
It is even；Sodium sulphate 20kg is added, is mixed, polycarboxylate additive is obtained.
The preparation of the polycarboxylate additive of the present invention of embodiment 2
70kg water is heated to 50-55 DEG C, monoethanolamine 2kg, triethanolamine 5kg and triisopropanolamine 5kg is subsequently adding, mixed
It is even；Sodium sulphate 21kg is added, is mixed, polycarboxylate additive is obtained.
The preparation of the polycarboxylate additive of the present invention of embodiment 3
90kg water is heated to 50-55 DEG C, monoethanolamine 4kg, triethanolamine 2kg and triisopropanolamine 6kg is subsequently adding, mixed
It is even；Sodium sulphate 16kg is added, is mixed, polycarboxylate additive is obtained.
The polycarboxylate additive for adding embodiment of the present invention 1-3 to prepare in concrete, addition is the 1% of gel material content,
Contrasted with the concrete performance without polycarboxylate additive, it is as a result as follows.
| 16h compression strength | 1d compression strength | 3d compression strength | 28d compression strength | |
| Embodiment 1 | Improve 68% | Improve 55% | Improve 33% | It is basically identical |
| Embodiment 2 | Improve 66% | Improve 52% | Improve 31% | It is basically identical |
| Embodiment 3 | Improve 65% | Improve 50% | Improve 30% | It is basically identical |
Claims (3)
1. polycarboxylate additive, it is characterised in that be made up of the component of following weight proportion：Monoethanolamine 1-5 parts, three ethanol
Amine 2-6 parts, triisopropanolamine 4-6 parts, sodium sulphate 16-22 parts, water 70-90 parts.
2. polycarboxylate additive according to claim 1, it is characterised in that be made up of the component of following weight proportion：
3 parts of monoethanolamine, 3 parts of triethanolamine, 4 parts of triisopropanolamine, 20 parts of sodium sulphate, 80 parts of water.
3. the preparation method of the polycarboxylate additive described in claim 1 or 2, it is characterised in that comprise the following steps：
A, 50-55 DEG C is heated water to, monoethanolamine, triethanolamine and triisopropanolamine are then added by weight ratio, mixed；
B, sodium sulphate is added, mixed, obtain final product polycarboxylate additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903124.5A CN106854048A (en) | 2015-12-09 | 2015-12-09 | polycarboxylate additive and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903124.5A CN106854048A (en) | 2015-12-09 | 2015-12-09 | polycarboxylate additive and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106854048A true CN106854048A (en) | 2017-06-16 |
Family
ID=59133015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903124.5A Pending CN106854048A (en) | 2015-12-09 | 2015-12-09 | polycarboxylate additive and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106854048A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186461A (en) * | 2007-11-26 | 2008-05-28 | 江苏博特新材料有限公司 | Composite liquid for increasing early strength of concrete mixed with polycarboxylate additive |
-
2015
- 2015-12-09 CN CN201510903124.5A patent/CN106854048A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101186461A (en) * | 2007-11-26 | 2008-05-28 | 江苏博特新材料有限公司 | Composite liquid for increasing early strength of concrete mixed with polycarboxylate additive |
Non-Patent Citations (1)
| Title |
|---|
| 隋良志等: "《建筑与装饰材料》", 31 January 2015, 天津大学出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |