CN103288378A - Novel prestressed duct grouting agent and preparation method thereof - Google Patents
Novel prestressed duct grouting agent and preparation method thereof Download PDFInfo
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- CN103288378A CN103288378A CN201310175605XA CN201310175605A CN103288378A CN 103288378 A CN103288378 A CN 103288378A CN 201310175605X A CN201310175605X A CN 201310175605XA CN 201310175605 A CN201310175605 A CN 201310175605A CN 103288378 A CN103288378 A CN 103288378A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention relates to a novel prestressed duct grouting agent and a preparation method thereof. The grouting agent is characterized by comprising the following components in parts by weight: 3-4 parts of high-performance water reducing agent, 0.15-0.35 part of defoaming agent, 0.1-0.2 part of thixotropic agent, 0.15-0.35 part of cellulose, 0.3-1 part of expanding agent, 15-30 parts of silica fume, 20-30 parts of mineral admixtures and 44-51 parts of coal ash. The novel prestressed duct grouting agent is wide in raw material source; each component is high in adaptability and is high in peaceability with cement; the strength within three days can meet the strength requirement within seven days; the expansion is excellent in the plastic stage, and the expansion requirements within 3 hours and 24 hours can be met; the grouting agent is high in liquidity, high in stability, high in strength, zero in bleeding, slight in expansion, not layered, high in durability and rustless to steel bars; the filling degree is high, the grouting construction can be performed at one time, and slurry in the duct is dense and non-porous; and the prestressed reinforcement is not rusted, and the grouting agent is firmly adhered to concrete and high in integrity.
Description
Technical field
The invention belongs to building material field, be specifically related to a kind of novel pre-stressed hole path pressure grouting agent and preparation method thereof.
Background technology
In recent years, the post stressed concrete bridge is used widely in the highway in China construction.Because prestress hole path pressure grouting is the concealed work in the bridge construction, in case namely become camera bellows after the perfusion, quality is difficult for checking, management and detection means do not catch up with in addition, even this concealed work has the cavity also can not be found, the existence in these cavities easily causes moisture and air to invade and corrosion steel bundle will reduce weather resistance and the supporting capacity of concrete structure member greatly, cause actual pore squeezing quality deviation, so squeezing quality has become the focus that engineering circle is paid close attention to.
The market of mud jacking agent is very chaotic, uneven from the quality to the price, and the mud jacking agent has certain ageing, bad present situation in the face of mud jacking agent market, " highway bridge and culvert construction technique normalizing " (JTG/T F50-2011) is to the adjustment that standardizes of hole path pressure grouting aspect, the performance index of slurries require significantly to improve, no bleeding, microdilatancy, not stratified, characteristics such as fullness degree is up to standard, not corrosion reinforcing bar, intensity height are the assurances of high quality prestress hole path pressure grouting, are to guarantee the bridge basis in normal work-ing life.Can grasp the technology that meets the agent of new bridge gauge high standard mud jacking rapidly and have practical significance, also be extremely urgent.It is the most important thing that solves the mud jacking problem that development has high-level novel pre-stressed hole path pressure grouting agent and preparation method thereof concurrently.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of novel pre-stressed hole path pressure grouting agent is provided, it can satisfy " highway bridge and culvert construction technique normalizing " (JTG/T F50-2011) to the high standard requirement of mud jacking size performance, satisfies the needs of post-stressed hole path pressure groutings such as highway bridge.
Another object of the present invention is for providing a kind of preparation method of novel pre-stressed hole path pressure grouting agent.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of novel pre-stressed hole path pressure grouting agent, it is characterized in that: the component of mud jacking agent and ratio of weight and number thereof are:
And described high-performance water reducing agent is that powdered modified high performance water reducing agent of polyocarboxy acid or naphthalene are the powder high efficiency water reducing agent.
And described defoamer is organic oxygen alkane defoamer, polyether antifoam agent or silicone antifoam agent.
And described thixotropic agent is polyvinyl alcohol thixotropic agent or polyamide wax thixotropic agent.
And described Mierocrystalline cellulose is 300 to 400cp Vltra tears, CMC fiber type element or HEC fiber type element.
And described swelling agent is that plastic expansion agent, UEA swelling agent, ettringite are one or more the mixing in the swelling agent.
And described SILICA FUME is dioxide-containing silica greater than 94%, fineness less than 1um account for more than 80%, median size is 20～28m in 0.1～0.3um, specific surface area
2The silicon ash of/g.
And described mineral admixture is ultrafine slag powder.
And described flyash is the first level flour coal ash.
A kind of preparation method of novel pre-stressed hole path pressure grouting agent as claimed in claim 1 is characterized in that: each component of weighing by ratio of weight and the number of copies stirs in stirrer and namely gets the mud jacking agent respectively.
Advantage of the present invention and positively effect are:
Novel pre-stressed hole path pressure grouting agent of the present invention is formed the starting material wide material sources by water reducer, swelling agent, Mierocrystalline cellulose etc.; Each component adaptability is good, and is good with the cement workability; Intensity can reach 7 days requirement of strength in 3 days; Plastic stage expands excellent, can satisfy 3h, 24h expansion requirement; High workability, high stability, high strength; Zero bleeding, microdilatancy, not stratified; Weather resistance is strong, to the reinforcing bar non-corroding; High fullness degree, can be disposable the closely knit atresia of slurry in the mud jacking construction, duct; The deformed bar non-corroding, firm with concrete binding, globality is strong.
Embodiment
The invention will be further described below in conjunction with specific embodiment.Following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
Embodiment 1
A kind of novel pre-stressed hole path pressure grouting agent, its component and weight thereof are:
Wherein, the viscosity of hydroxypropyl methyl cellulose ether is 300 to 400cP.SILICA FUME is dioxide-containing silica greater than 94%, fineness less than 1um account for more than 80%, median size is 20～28m in 0.1～0.3um, specific surface area
2The silicon ash of/g.
By said components and weight, in stirrer, stir and namely get the mud jacking agent.
Employing by above-mentioned prescription system the pneumatic mortar machine of the present invention performance of mixing the mud jacking material that forms behind cement (place of cement 10%) and the water see Table 1.
Table 1 embodiment 1 test index
Used water-cement ratio (being water/(cement+mud jacking agent)) is 0.28, and volume of the present invention is mixed in being, the volume of mud jacking agent is 10%.
Embodiment 2
A kind of novel pre-stressed hole path pressure grouting agent, its component and weight thereof are:
Wherein, the viscosity of low viscous CMC fiber type element is 300 to 400cP.
Each component is mixed the mud jacking agent of the present invention of system by above-mentioned mass percent.
Employing by above-mentioned prescription system the present invention's performance of mixing the mud jacking material that forms behind cement (place of cement 10%) and the water see Table 2.
Table 2 embodiment 2 test indexes
Annotate: used water-cement ratio (being water/(cement+mud jacking agent)) is 0.28, and volume of the present invention is mixed in being, the volume of mud jacking agent is 10%.
Embodiment 3
A kind of novel pre-stressed hole path pressure grouting agent, its component and weight thereof are:
Wherein, the viscosity of low viscous CMC fiber type element is 300 to 400cP.
Each component is mixed the mud jacking agent of the present invention of system by above-mentioned mass percent.
Embodiment 4
A kind of novel pre-stressed hole path pressure grouting agent, its component and weight thereof are:
Wherein, the viscosity of hydroxypropyl methyl cellulose ether is 300 to 400cP.SILICA FUME is dioxide-containing silica greater than 94%, fineness less than 1um account for more than 80%, median size is 20～28m in 0.1～0.3um, specific surface area
2The silicon ash of/g.
By said components and weight, in stirrer, stir and namely get the mud jacking agent.
Novel pre-stressed hole path pressure grouting agent of the present invention can be satisfied " highway bridge and culvert construction technique normalizing " (JTG/T F50-2011) to the high standard requirement of mud jacking size performance, satisfies the needs of post-stressed hole path pressure groutings such as highway bridge.Its advantage is: low water binder ratio; Component is few, stability is high; High workability, high strength; Zero bleeding, microdilatancy, not stratified; Weather resistance is strong, to the reinforcing bar non-corroding; High fullness degree, can be disposable the closely knit atresia of slurry in the mud jacking construction, duct; The deformed bar non-corroding, firm with concrete binding, globality is strong.
Although disclose embodiments of the invention for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the present invention and claims, various replacements, variation and modification all are possible, therefore, scope of the present invention is not limited to the disclosed content of embodiment.
Claims (10)
1. novel pre-stressed hole path pressure grouting agent, it is characterized in that: the component of mud jacking agent and ratio of weight and number thereof are:
2. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described high-performance water reducing agent is that powdered modified high performance water reducing agent of polyocarboxy acid or naphthalene are the powder high efficiency water reducing agent.
3. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described defoamer is organic oxygen alkane defoamer, polyether antifoam agent or silicone antifoam agent.
4. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described thixotropic agent is polyvinyl alcohol thixotropic agent or polyamide wax thixotropic agent.
5. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described Mierocrystalline cellulose is 300 to 400cp Vltra tears, CMC fiber type element or HEC fiber type element.
6. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described swelling agent is that plastic expansion agent, UEA swelling agent, ettringite are one or more the mixing in the swelling agent.
7. novel pre-stressed hole path pressure grouting agent according to claim 1 is characterized in that: described SILICA FUME is dioxide-containing silica greater than 94%, fineness less than 1um account for more than 80%, median size is 20～28m in 0.1～0.3um, specific surface area
2The silicon ash of/g.
8. novel pre-stressed hole path pressure grouting agent according to claim 1, it is characterized in that: described mineral admixture is ultrafine slag powder.
9. novel pre-stressed hole path pressure grouting agent according to claim 1, it is characterized in that: described flyash is the first level flour coal ash.
10. the preparation method of a novel pre-stressed hole path pressure grouting agent as claimed in claim 1, it is characterized in that: each component of weighing by ratio of weight and the number of copies stirs in stirrer and namely gets the mud jacking agent respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310175605XA CN103288378A (en) | 2013-05-14 | 2013-05-14 | Novel prestressed duct grouting agent and preparation method thereof |
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| CN201310175605XA CN103288378A (en) | 2013-05-14 | 2013-05-14 | Novel prestressed duct grouting agent and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496944A (en) * | 2013-10-10 | 2014-01-08 | 丁蕴斌 | Special grouting agent for traffic engineering |
| CN103833260A (en) * | 2014-03-10 | 2014-06-04 | 甘肃智通科技工程检测咨询有限公司 | Environment-friendly high-efficiency grouting agent |
| CN103896546A (en) * | 2014-03-10 | 2014-07-02 | 甘肃智通科技工程检测咨询有限公司 | Environment-friendly multifunctional grouting agent |
| CN106517861A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Concrete grouting agent and application thereof |
| CN106517854A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Bridge concrete duct grouting agent and application thereof |
| CN106517860A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Preparation method of concrete grouting agent |
| CN106946489A (en) * | 2017-04-06 | 2017-07-14 | 日照弗尔曼新材料科技有限公司 | A kind of performance prestressed high pipeline pneumatic mortar agent |
| CN106986574A (en) * | 2017-04-07 | 2017-07-28 | 贵州科之杰新材料有限公司 | A kind of back-tension prestressed channel mudjacking agent and preparation method thereof |
| CN111393067A (en) * | 2020-03-29 | 2020-07-10 | 山东惠邦建材科技股份有限公司 | Low-dosage grouting agent |
| CN111393104A (en) * | 2020-03-25 | 2020-07-10 | 江西省建筑科学研究院 | High-fluidity high-strength foundation pile self-balancing static load test post-grouting body formula |
| CN113800811A (en) * | 2021-09-23 | 2021-12-17 | 重庆三圣实业股份有限公司 | Grouting agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584101A (en) * | 2012-01-20 | 2012-07-18 | 南京瑞迪高新技术有限公司 | Special grouting agent for post-tensioned prestressed concrete beams of highway bridges and culverts and preparation method thereof |
-
2013
- 2013-05-14 CN CN201310175605XA patent/CN103288378A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584101A (en) * | 2012-01-20 | 2012-07-18 | 南京瑞迪高新技术有限公司 | Special grouting agent for post-tensioned prestressed concrete beams of highway bridges and culverts and preparation method thereof |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496944A (en) * | 2013-10-10 | 2014-01-08 | 丁蕴斌 | Special grouting agent for traffic engineering |
| CN103833260A (en) * | 2014-03-10 | 2014-06-04 | 甘肃智通科技工程检测咨询有限公司 | Environment-friendly high-efficiency grouting agent |
| CN103896546A (en) * | 2014-03-10 | 2014-07-02 | 甘肃智通科技工程检测咨询有限公司 | Environment-friendly multifunctional grouting agent |
| CN103833260B (en) * | 2014-03-10 | 2015-10-21 | 甘肃智通科技工程检测咨询有限公司 | Environment-friendly high-efficiency grouting agent |
| CN106517860A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Preparation method of concrete grouting agent |
| CN106517854A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Bridge concrete duct grouting agent and application thereof |
| CN106517861A (en) * | 2016-10-27 | 2017-03-22 | 浙江海洋大学 | Concrete grouting agent and application thereof |
| CN106946489A (en) * | 2017-04-06 | 2017-07-14 | 日照弗尔曼新材料科技有限公司 | A kind of performance prestressed high pipeline pneumatic mortar agent |
| CN106986574A (en) * | 2017-04-07 | 2017-07-28 | 贵州科之杰新材料有限公司 | A kind of back-tension prestressed channel mudjacking agent and preparation method thereof |
| CN111393104A (en) * | 2020-03-25 | 2020-07-10 | 江西省建筑科学研究院 | High-fluidity high-strength foundation pile self-balancing static load test post-grouting body formula |
| CN111393067A (en) * | 2020-03-29 | 2020-07-10 | 山东惠邦建材科技股份有限公司 | Low-dosage grouting agent |
| CN111393067B (en) * | 2020-03-29 | 2022-05-06 | 山东惠邦建材科技股份有限公司 | Low-dosage grouting agent |
| CN113800811A (en) * | 2021-09-23 | 2021-12-17 | 重庆三圣实业股份有限公司 | Grouting agent and preparation method thereof |
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Application publication date: 20130911 |