CN105084807A - High-flowability concrete swelling agent - Google Patents
High-flowability concrete swelling agent Download PDFInfo
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- CN105084807A CN105084807A CN201510540045.2A CN201510540045A CN105084807A CN 105084807 A CN105084807 A CN 105084807A CN 201510540045 A CN201510540045 A CN 201510540045A CN 105084807 A CN105084807 A CN 105084807A
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- swelling agent
- concrete swelling
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- silicate
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Abstract
The invention relates to the technical field of cement additives, in particular to a high-flowability concrete swelling agent. The high-flowability concrete swelling agent is prepared from the following components by weight percentage: 60 to 75 percent of gypsum, 6 to 10 percent of aluminum sulfate, 5 to 10 percent of ammonium sulfate, 8 to 16 percent of silicate, 1 to 3 percent of graphite powder and 8 to 12 percent of polysilicate ester. The high-flowability concrete swelling agent provided by the invention has good flowability and permeability, and after being dried, the cement has good functions of crack resistance, impermeability and the like.
Description
Technical field
The present invention relates to cement additive technical field, particularly relate to a kind of high-flowing concrete swelling agent.
Background technology
High-flowing concrete swelling agent belongs to calcium sulphoaluminate type high-flowing concrete swelling agent, not containing sodium salt, should not cause alkali-aggregate reaction in concrete.And weather resistance is good, expansion character is stablized, and intensity continuous rises.Due to shrinkage cracking, often there is seepage in normal concrete, reduces its using function and weather resistance.Mix the swelling agent of 1.5%-2% in cement, mixing can become expansive concrete, substantially increase the anti-cracking waterproof ability of concrete structure.Outer waterproof homework can be cancelled, extend last-cost joint spacing, prevent the appearance of mass concrete and high-strength concrete temperature difference crack.
As everyone knows, due to shrinkage cracking, often there is seepage in normal concrete, reduces its using function and weather resistance.Mix not containing sodium salt, the calcium sulphoaluminate class high-flowing concrete swelling agent not easily causing alkali-aggregate reaction in concrete in cement, mixing becomes expansive concrete, do concrete structure self-waterproofing, extend last-cost joint spacing, prevent the appearance of mass concrete and strong concrete temperature difference crack, greatly improve the anti-cracking waterproof ability of concrete structure.
In recent years, along with the maximization of building structure and strength grade of concrete improve constantly, concrete cracking phenomenon is more and more serious.Concrete occurs that crack not only reduces security and the weather resistance of structure, and using function is affected (cracking is the immediate cause causing seepage), the use of expansive concrete solves effective, the most economic technological approaches of concrete cracking.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of high-flowing concrete swelling agent.
A kind of high-flowing concrete swelling agent, comprises each component of following weight percentage: the gypsum of 60 ~ 75%, the Tai-Ace S 150 of 6 ~ 10%, the ammonium sulfate of 5 ~ 10%, the silicate of 8 ~ 16%, the Graphite Powder 99 of 1 ~ 3%, the polysilicates of 8 ~ 12%.
Concrete, described silicate comprises Magnesium Silicate q-agent and zinc silicate.
Preferably, the ratio of the weight percentage of Magnesium Silicate q-agent and zinc silicate is 1:1 ~ 1:2.
Concrete, described polysilicates comprises polysilicon acid methyl esters and ethyl polysilicate.
Preferably, the ratio of the weight percentage of polysilicon acid methyl esters and ethyl polysilicate is 1:1 ~ 1:1.5.
High-flowing concrete swelling agent provided by the present invention has good mobility and perviousness, and has good cracking resistance, the function such as impervious after ensureing cement mummification.
Embodiment
Be described principle of the present invention and feature below, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
Batching: the gypsum of 60 parts, the Tai-Ace S 150 of 10 parts, the ammonium sulfate of 5 parts, the Magnesium Silicate q-agent of 8 parts, the zinc silicate of 4 parts, the polysilicon acid methyl esters of 6 parts, the ethyl polysilicate of 4 parts, the Graphite Powder 99 of 3 parts.
Preparation: mixed by raw material, grinding is to specific surface area 180 ~ 200m
2/ kg, 0.05mm square hole sieve, tails over 11%, obtained product.
Embodiment 2
Batching: the gypsum of 75 parts, the Tai-Ace S 150 of 6 parts, the ammonium sulfate of 10 parts, the Magnesium Silicate q-agent of 4 parts, the zinc silicate of 8 parts, the polysilicon acid methyl esters of 4 parts, the ethyl polysilicate of 6 parts, the Graphite Powder 99 of 1 part.
Preparation: mixed by raw material, grinding is to specific surface area 180 ~ 200m
2/ kg, 0.05mm square hole sieve, tails over 10%, obtained product.
Embodiment 3
Batching: the gypsum of 70 parts, the Tai-Ace S 150 of 8 parts, the ammonium sulfate of 7 parts, the Magnesium Silicate q-agent of 6 parts, the zinc silicate of 5 parts, the polysilicon acid methyl esters of 5 parts, the ethyl polysilicate of 6 parts, the Graphite Powder 99 of 2 parts.
Preparation: mixed by raw material, grinding is to specific surface area 180 ~ 200m
2/ kg, 0.05mm square hole sieve, tails over 9%, obtained product.
The foregoing is only better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a high-flowing concrete swelling agent, is characterized in that, comprises each component of following weight percentage: the gypsum of 60 ~ 75%, the Tai-Ace S 150 of 6 ~ 10%, the ammonium sulfate of 5 ~ 10%, the silicate of 8 ~ 16%, the Graphite Powder 99 of 1 ~ 3%, the polysilicates of 8 ~ 12%.
2. high-flowing concrete swelling agent according to claim 1, is characterized in that: described silicate comprises Magnesium Silicate q-agent and zinc silicate.
3. high-flowing concrete swelling agent according to claim 2, is characterized in that: the ratio of the weight percentage of Magnesium Silicate q-agent and zinc silicate is 1:1 ~ 1:2.
4. high-flowing concrete swelling agent according to claim 1, is characterized in that: described polysilicates comprises polysilicon acid methyl esters and ethyl polysilicate.
5. high-flowing concrete swelling agent according to claim 4, is characterized in that: the ratio of the weight percentage of polysilicon acid methyl esters and ethyl polysilicate is 1:1 ~ 1:1.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510540045.2A CN105084807A (en) | 2015-08-28 | 2015-08-28 | High-flowability concrete swelling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510540045.2A CN105084807A (en) | 2015-08-28 | 2015-08-28 | High-flowability concrete swelling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105084807A true CN105084807A (en) | 2015-11-25 |
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ID=54566252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510540045.2A Pending CN105084807A (en) | 2015-08-28 | 2015-08-28 | High-flowability concrete swelling agent |
Country Status (1)
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| CN (1) | CN105084807A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037696A (en) * | 1988-05-21 | 1989-12-06 | 中国建筑材料科学研究院 | High-quality plumping agent of concrete is formed and method for making |
| CN1100705A (en) * | 1994-07-13 | 1995-03-29 | 中国建筑材料科学研究院 | Method of prodn. and usage of expanding agent for pouring piles |
| CN1101019A (en) * | 1993-09-29 | 1995-04-05 | 山东矿业学院 | Fortifier for cement and concrete |
| CN1312233A (en) * | 2000-03-06 | 2001-09-12 | 李志刚 | Expansion concrete and low-alkali high-efficiency concrete sweller |
| CN101062849A (en) * | 2007-05-08 | 2007-10-31 | 陈智丰 | Low-alkalinity composite cracking-against waterproof agent |
| CN101157529A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | High-performance cement-based shrink-free corrosion-proof grouting agent |
-
2015
- 2015-08-28 CN CN201510540045.2A patent/CN105084807A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037696A (en) * | 1988-05-21 | 1989-12-06 | 中国建筑材料科学研究院 | High-quality plumping agent of concrete is formed and method for making |
| CN1101019A (en) * | 1993-09-29 | 1995-04-05 | 山东矿业学院 | Fortifier for cement and concrete |
| CN1100705A (en) * | 1994-07-13 | 1995-03-29 | 中国建筑材料科学研究院 | Method of prodn. and usage of expanding agent for pouring piles |
| CN1312233A (en) * | 2000-03-06 | 2001-09-12 | 李志刚 | Expansion concrete and low-alkali high-efficiency concrete sweller |
| CN101062849A (en) * | 2007-05-08 | 2007-10-31 | 陈智丰 | Low-alkalinity composite cracking-against waterproof agent |
| CN101157529A (en) * | 2007-08-02 | 2008-04-09 | 铁道科学研究院铁道建筑研究所 | High-performance cement-based shrink-free corrosion-proof grouting agent |
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Application publication date: 20151125 |