CN107500600A - A kind of high-performance post-tensioned prestressing pipeline grouting agent - Google Patents
A kind of high-performance post-tensioned prestressing pipeline grouting agent Download PDFInfo
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- CN107500600A CN107500600A CN201710883085.6A CN201710883085A CN107500600A CN 107500600 A CN107500600 A CN 107500600A CN 201710883085 A CN201710883085 A CN 201710883085A CN 107500600 A CN107500600 A CN 107500600A
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- CN
- China
- Prior art keywords
- component
- tensioned prestressing
- grouting agent
- performance post
- prestressing pipeline
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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
- C04B40/0042—Powdery mixtures
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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 proposes a kind of high-performance post-tensioned prestressing pipeline grouting agent, and its group of constituent and its percentage by weight are：Diminishing component：2% -20%, expansion component：10% -40%, strengthen component：0.5% -2%, reduce component：0.001% -0.02%, resistance rust component：2% -20%, modified gypsum component：1% -10%, thickener component：0-0.001%, flyash：10% -40%；The water-cement ratio of grouting material was substantially reduced, improves the mobility of slurry and the plumpness of slurry, and hardening rear slurry is closely knit.
Description
Technical field
The invention belongs to grouting agent technical field, and in particular to a kind of high-performance post-tensioned prestressing pipeline grouting agent.
Background technology
Unreal post-tensioned prestressing pipeline mud jacking is one of common quality defect of modern concrete bridge construction, and it is by serious shadow
Ring the ultimate bearing capacity and structure durability of structure.Harm caused by pumping of prostressed duct is unreal and Analysis on Mechanism reinforcing bar rust
Erosion is one of mechanism of concrete structure damage, and the basic goal of hole path pressure grouting is to exclude the water and air in duct, is prevented
Presstressed reinforcing steel is corroded, and ensures the durability of prestressed component.
Solves problems with compared to common duct grouting：(1) grind slurries quality stability is good, good fluidity, mobility damage
Lose that small, volume is steady；(2) it is new to mix that slurries bleeding rate is low, be not easy isolation layering, hole path pressure grouting state is full；(3) it is close to harden rear slurry
It is real.
The content of the invention
The present invention proposes a kind of high-performance post-tensioned prestressing pipeline grouting agent regarding to the issue above, substantially reduces overvoltage
The water-cement ratio of slurry, improves the mobility of slurry and the plumpness of slurry, and hardening rear slurry is closely knit.
Specific technical scheme is as follows：
A kind of high-performance post-tensioned prestressing pipeline grouting agent, its group of constituent and its percentage by weight are：
Diminishing component：2% -20%,
Expansion component：10% -40%,
Strengthen component：0.5% -2%,
Reduce component：0.001% -0.02%,
Resistance rust component：2% -20%,
Modified gypsum component：1% -10%,
Thickener component：0-0.001%,
Flyash：10% -40%.
Wherein, described diminishing component is preferably polycarboxylic acids pulvis water reducer.
Wherein, described expansion component is preferably aluminium salt swelling agent.
Wherein, described enhancing component is preferably alcohol Ammonia reinforcing agent.
Wherein, described decrement component is preferably the shrinkage type polycarboxylic acids purchased from Jiangsu Bairuiji New Material Co., Ltd..
Wherein, described modified gypsum component is preferably that common building gypsum forms with the composite modified processing of alkali-activator.
Wherein described thickener component is preferably methylcellulose or hydroxypropyl methyl cellulose.
Wherein described flyash is preferably one-level flyash.
The preparation method of grouting agent is：It is stirred after according to above-mentioned weight ratio, each component is mixed, mixing time is half
Hour.
Compared with prior art, technical scheme has the advantages that：Substantially reduced the water of grouting material
Glue ratio, improves the mobility of slurry and the plumpness of slurry, and hardening rear slurry is closely knit.
Embodiment
It to make technical scheme become apparent from clearly, and can be practiced according to the content of specification, and be
The above and other objects, features and advantages of the present invention can be become apparent, below in conjunction with preferred embodiment, specifically
Bright as follows, any scheme drawn to the technical characteristic progress equivalencing of technical solution of the present invention and conventional reasoning each falls within this
Invention protection domain.
Embodiment one
A kind of high-performance post-tensioned prestressing pipeline grouting agent, its group of constituent and its percentage by weight are：
Diminishing component 11%, expansion component 35%, strengthen component 1%, decrement component 0.01%, hinder rust component 10%, change
Property gypsum 5%, hydroxypropyl methyl cellulose 0.0005%, flyash surplus.
Each component is mixed according to above-mentioned percentage by weight, mixing time is 0.5 hour.
Wherein, described diminishing component is polycarboxylic acids pulvis water reducer；Described expansion component is aluminium salt swelling agent；It is described
Enhancing component be alcohol Ammonia reinforcing agent；Described decrement component is the shrinkage type purchased from Jiangsu Bairuiji New Material Co., Ltd.
Polycarboxylic acids；Described modified gypsum component is that plaster of Paris forms with the composite modified processing of alkali-activator；Described thickener component
For methylcellulose or hydroxypropyl methyl cellulose；Described flyash is one-level flyash.
Embodiment two
A kind of high-performance post-tensioned prestressing pipeline grouting agent, its group of constituent and its percentage by weight are：
Grouting agent according to:Diminishing component 11%, expansion component 30%, enhancing component 0.8%, decrement component 0.015%, resistance
Rust component 12%, modified gypsum 8%, hydroxypropyl methyl cellulose 0.0005%, flyash surplus.
Each component is mixed according to above-mentioned percentage by weight, mixing time is 0.5 hour.
Wherein, described diminishing component is polycarboxylic acids pulvis water reducer；Described expansion component is aluminium salt swelling agent；It is described
Enhancing component be alcohol Ammonia reinforcing agent；Described decrement component is the shrinkage type purchased from Jiangsu Bairuiji New Material Co., Ltd.
Polycarboxylic acids；Described modified gypsum component is that plaster of Paris forms with the composite modified processing of alkali-activator；Described thickener component
For methylcellulose or hydroxypropyl methyl cellulose；Described flyash is one-level flyash.
Embodiment three
A kind of high-performance post-tensioned prestressing pipeline grouting agent, its group of constituent and its percentage by weight are：
Grouting agent according to:Diminishing component 11%, expansion component 35%, enhancing component 0.8%, decrement component 0.015%, resistance
Rust component 11%, modified gypsum 7%, hydroxypropyl methyl cellulose 0.0005%, flyash surplus.
Each component is mixed according to above-mentioned percentage by weight, mixing time is 0.5 hour.
Wherein, described diminishing component is polycarboxylic acids pulvis water reducer；Described expansion component is aluminium salt swelling agent；It is described
Enhancing component be alcohol Ammonia reinforcing agent；Described decrement component is the shrinkage type purchased from Jiangsu Bairuiji New Material Co., Ltd.
Polycarboxylic acids；Described modified gypsum component is that plaster of Paris forms with the composite modified processing of alkali-activator；Described thickener component
For methylcellulose or hydroxypropyl methyl cellulose；Described flyash is one-level flyash.
In order to verify the performance of grouting agent produced by the present invention, therefore use the embodiment of the present invention one, embodiment two or implement
The grouting agent being prepared in example three prepares grouting material, and based on 1t siccatives the composition of grouting material is：Cement P.O42.5：
850kg, grouting agent：150kg, water：280kg, wherein, water-cement ratio：0.28.
The grouting material test situation such as following table being prepared：
As can be seen that grouting material can be made in the situation of very low water-cement ratio by adding the product of the present invention from above table
It is issued to very high mobility, and causes so dilute slurry to remain good system stability, does not settle, not bleeding.
Claims (9)
1. a kind of high-performance post-tensioned prestressing pipeline grouting agent, it is characterised in that its group of constituent and its percentage by weight
For：
Diminishing component：2% -20%,
Expansion component：10% -40%,
Strengthen component：0.5% -2%,
Reduce component：0.001% -0.02%,
Resistance rust component：2% -20%,
Modified gypsum component：1% -10%,
Thickener component：0-0.001%,
Flyash：10% -40%.
A kind of 2. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described diminishing
Component is polycarboxylic acids pulvis water reducer.
A kind of 3. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described expansion
Component is aluminium salt swelling agent.
A kind of 4. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described enhancing
Component is alcohol Ammonia reinforcing agent.
A kind of 5. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described decrement
Component is the shrinkage type polycarboxylic acids purchased from Jiangsu Bairuiji New Material Co., Ltd..
A kind of 6. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described modification
Gypsum component is that common building gypsum forms with the composite modified processing of alkali-activator.
A kind of 7. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described thickening
Component is methylcellulose or hydroxypropyl methyl cellulose.
A kind of 8. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that described fine coal
Ash is one-level flyash.
A kind of 9. high-performance post-tensioned prestressing pipeline grouting agent as claimed in claim 1, it is characterised in that its preparation method
For：It is stirred after according to above-mentioned weight ratio, each component is mixed, mixing time is half an hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883085.6A CN107500600A (en) | 2017-09-26 | 2017-09-26 | A kind of high-performance post-tensioned prestressing pipeline grouting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883085.6A CN107500600A (en) | 2017-09-26 | 2017-09-26 | A kind of high-performance post-tensioned prestressing pipeline grouting agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107500600A true CN107500600A (en) | 2017-12-22 |
Family
ID=60698649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710883085.6A Pending CN107500600A (en) | 2017-09-26 | 2017-09-26 | A kind of high-performance post-tensioned prestressing pipeline grouting agent |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206062A (en) * | 2011-03-31 | 2011-10-05 | 浙江五龙化工股份有限公司 | Post-tensioned and pre-stressed pipe grouting agent |
| CN102531502A (en) * | 2012-03-02 | 2012-07-04 | 河南省交通科学技术研究院有限公司 | Post-tensioning prestressed concrete porelike grouting agent and preparation method thereof, and grouting material |
| CN103030321A (en) * | 2012-12-26 | 2013-04-10 | 交通运输部公路科学研究所 | Expanding agent, post-tensioning prestressed concrete porelike grouting agent and grouting material |
| CN104291726A (en) * | 2013-07-19 | 2015-01-21 | 北京纽维逊建筑工程技术有限公司 | Ultralow-content post-tensioned pre-stressed pipeline grouting agent, and preparation method and application thereof |
| CN104386979A (en) * | 2014-10-23 | 2015-03-04 | 广西南宁柏睿通合成建材科技有限公司 | Prestressed duct grouting agent and manufacturing method thereof |
-
2017
- 2017-09-26 CN CN201710883085.6A patent/CN107500600A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206062A (en) * | 2011-03-31 | 2011-10-05 | 浙江五龙化工股份有限公司 | Post-tensioned and pre-stressed pipe grouting agent |
| CN102531502A (en) * | 2012-03-02 | 2012-07-04 | 河南省交通科学技术研究院有限公司 | Post-tensioning prestressed concrete porelike grouting agent and preparation method thereof, and grouting material |
| CN103030321A (en) * | 2012-12-26 | 2013-04-10 | 交通运输部公路科学研究所 | Expanding agent, post-tensioning prestressed concrete porelike grouting agent and grouting material |
| CN104291726A (en) * | 2013-07-19 | 2015-01-21 | 北京纽维逊建筑工程技术有限公司 | Ultralow-content post-tensioned pre-stressed pipeline grouting agent, and preparation method and application thereof |
| CN104386979A (en) * | 2014-10-23 | 2015-03-04 | 广西南宁柏睿通合成建材科技有限公司 | Prestressed duct grouting agent and manufacturing method thereof |
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Application publication date: 20171222 |