CN115849841A - Sleeve grouting material suitable for quick connection of intelligent assembling bridge fabrication machine - Google Patents
Sleeve grouting material suitable for quick connection of intelligent assembling bridge fabrication machine Download PDFInfo
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- CN115849841A CN115849841A CN202211593231.9A CN202211593231A CN115849841A CN 115849841 A CN115849841 A CN 115849841A CN 202211593231 A CN202211593231 A CN 202211593231A CN 115849841 A CN115849841 A CN 115849841A
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Abstract
The invention provides a sleeve grouting material suitable for quick connection of an intelligent assembly bridge fabrication machine, which comprises the following raw materials: sulphoaluminate cement, portland cement, silica fume, graded quartz sand, a water reducing agent, a defoaming agent, steel fiber, water, fly ash, micro-bead powder and an expanding agent. According to the invention, on one hand, the microbead powder is introduced to be used as a slurry tackifying component, on the other hand, the slurry is kept stand for 20-30min before the grouting material is poured into the sleeve, then the slurry is uniformly stirred and grouted, and the condition that the reinforcing steel bar sleeve is poured into the sleeve by a pressure grouting method before initial setting is ensured, so that the two aspects are effectively matched, the problem of steel fiber sedimentation in the grouting material can be effectively avoided, and the final connection strength and the overall reliability of the grouting material sleeve to the IABM prefabricated part are ensured.
Description
Technical Field
The invention relates to the technical field of grouting materials, in particular to a sleeve grouting material suitable for quick connection of an intelligent assembling bridge fabrication machine.
Background
In recent years, viaducts have been rapidly developed as landmark roads for urban renovation. How to reduce the influence to current traffic when setting up the overpass, do not influence the convenient trip of resident, promote the operating efficiency, reduce construction cost, this overline bridge of construction overpass that is good again becomes the city and updates the problem that needs to solve urgently, receives the high attention and the continuous concern of construction unit, local government, citizen's common people more and more.
An intelligent assembly bridge fabrication machine (IABM) developed by the eighth project office of China Limited has been introduced. The IABM is 76.5 meters long, 15 meters wide, 15.5 meters high and 360 tons of total weight, is an intelligent construction machine for serving large-scale municipal bridge construction, realizes the integrated installation of a column, a cover beam and a box beam prefabricated by a factory on site for the first time, can erect a cover beam with the weight of 200 tons within 30 minutes, breaks through the technology 'fence' that the traditional bridge girder erection machine can only erect the box beam, and leads the rapid improvement of the construction efficiency of the corresponding integral engineering and the great saving of the construction period.
The successful popularization and application of the IABM are dependent on the development of sleeve grouting materials for connecting key nodes of the IABM so as to realize the quick, reliable and connection of upright columns, capping beams and box beams based on corresponding grouting sleeves. Although the initial and 30-min flowing performance and 12-hour compressive strength of the existing super early strength and high strength grouting material on the market meet the requirements, the steel fiber with the functions of cracking resistance, toughening and later strength improvement has a settlement problem, and the final connection strength and the overall reliability of the grouting sleeve used as an IABM prefabricated part quick connecting piece are influenced.
Disclosure of Invention
Aiming at the prior art, the invention provides a sleeve grouting material suitable for quick connection of an intelligent assembling bridge fabrication machine.
The invention provides a sleeve grouting material suitable for quick connection of an intelligent assembly bridge fabrication machine, which comprises the following raw materials: sulphoaluminate cement, portland cement, silica fume, graded quartz sand, a water reducing agent, a defoaming agent, steel fiber, water, fly ash, micro-bead powder and an expanding agent.
Preferably, it comprises the following raw materials: 3 parts of sulphoaluminate cement, 1 part of Portland cement, 0.8 part of silica fume, 3.33 parts of graded quartz sand, 0.2 part of water reducing agent, 0.008 part of defoaming agent, 0.244 part of steel fiber, 0.92 part of water, 0.133 part of fly ash, 0.151 part of microbead powder and 0.013 part of expanding agent.
Preferably, the silica fume has a bulk density of 372kg/m3, a particle size of 1500 meshes and a silicon content of 95%.
Preferably, the water reducing agent is a polycarboxylic acid water reducing agent.
Preferably, the fly ash is class I fly ash, and the density of the fly ash is 2.8-3.2g/cm < 3 >.
Preferably, the micro-bead powder is vitrified micro-bead powder, and the particle size of the micro-bead powder is 1000 meshes.
Preferably, the swelling agent is a UEA swelling agent.
Preferably, the preparation method comprises the following steps: drying and mixing portland cement, sulphoaluminate cement, silica fume, fly ash, micro-bead powder and an expanding agent, adding graded quartz sand and stirring, adding water, a water reducing agent and a defoaming agent and stirring, and adding steel fibers to obtain the sleeve grouting material.
Preferably, the preparation method comprises the following steps: drying and mixing portland cement, sulphoaluminate cement, fly ash, bead powder and an expanding agent for 90s, adding quartz sand and stirring for 1min, adding water, a water reducing agent and a defoaming agent, stirring for 1.5min at a low speed, stirring for 2.5min at a high speed, continuously adding steel fibers within 1min to obtain an initial grouting material, standing the initial grouting material for 20-30min, and stirring for 60s to obtain the sleeve grouting material.
Compared with the prior art, the invention has the beneficial effects that: according to the sleeve grouting material suitable for quick connection of the intelligent assembly bridge fabrication machine, on one hand, microbead powder is introduced to serve as a slurry tackifying component, on the other hand, the sleeve grouting material is kept stand for 20-30min before being grouted into the sleeve, then is uniformly stirred and grouted, and is guaranteed to be grouted into a steel bar sleeve by a pressure grouting method before initial setting, the two aspects are effectively matched, the problem of steel fiber sedimentation in the grouting material can be effectively avoided, and the final connection strength and the overall reliability of the grouting material sleeve to an IABM prefabricated part are guaranteed.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Examples
The utility model provides a sleeve grout material suitable for intelligence assembly bridging machine high-speed joint, its includes following raw materials: 675kg of sulphoaluminate cement, 225kg of Portland cement, 180kg of silica fume, 750kg of graded quartz sand, 50kg of polycarboxylic acid water reducing agent, 1.8kg of defoaming agent, 54.9kg of steel fiber, 198kg of tap water, 30kg of fly ash, 30kg of vitrified micro-bead powder and 2.925kg of UEA expanding agent.
Wherein the strength grade of the sulphoaluminate cement is 52.5, and the specific surface area is 515m 2 Kg, 28.4% of residue on sieve, 42.02% of CaO, AL 2 O 3 The content was 34.27%. The Portland cement is 52.5 strength-grade Portland cementHaving a specific surface area of 373m 2 Kg, percent screen residue 36.4%, water usage for standard consistency 27.7%. The bulk density of the silica fume is 372kg/m 3 The granularity is 1500 meshes, and the silicon content is 95 percent. The fly ash is I-grade fly ash with the density of 2.45g/cm 3 High hardness, 6% of magnesium oxide, 15% of calcium oxide and 14% of iron oxide, wherein the shape of the fine precipitated beads is a standard sphere, and the bulk density is 700-750kg/m 3 . The granularity of the vitrified micro-bead powder is 1000 meshes. The water reducing agent is a polycarboxylate water reducing agent PCA-1 type mother liquor produced by Subot corporation, and the water reducing rate of the product is 25-30%.
The sleeve grouting material is prepared according to the following steps: according to the weight parts, silicate cement, sulphoaluminate cement, fly ash, vitrified micro-bead powder and UEA expanding agent are dried and mixed for 90s, quartz sand is added and stirred for 1min, tap water, a polycarboxylic acid water reducing agent and a defoaming agent are added, the mixture is stirred at a low speed for 1.5min and then at a high speed for 2.5min, steel fibers are continuously added within 1min to obtain initial grouting material, and the initial grouting material is kept stand for 20-30min and then stirred for 60s to obtain sleeve grouting material. The sleeve grouting material ensures that the reinforcing steel bar sleeve is grouted by a pressure grouting method before initial setting.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent technical solutions made by using the contents of the present invention in the specification can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.
Claims (9)
1. The utility model provides a sleeve grout material suitable for intelligence assembly bridging machine high-speed joint which characterized in that, it includes following raw materials: sulphoaluminate cement, portland cement, silica fume, graded quartz sand, a water reducing agent, a defoaming agent, steel fiber, water, fly ash, micro-bead powder and an expanding agent.
2. The sleeve grouting material of claim 1, which comprises the following raw materials in parts by weight: 3 parts of sulphoaluminate cement, 1 part of Portland cement, 0.8 part of silica fume, 3.33 parts of graded quartz sand, 0.2 part of water reducing agent, 0.008 part of defoaming agent, 0.244 part of steel fiber, 0.92 part of water, 0.133 part of fly ash, 0.151 part of microbead powder and 0.013 part of expanding agent.
3. The sleeve grouting material as claimed in claim 1, wherein the silica fume has a bulk density of 372kg/m 3 The granularity is 1500 meshes, and the silicon content is 95 percent.
4. The sleeve grout material of claim 1, wherein said water reducer is a polycarboxylic acid water reducer.
5. The sleeve grouting material of claim 1, wherein the fly ash is class I fly ash, and the density of the fly ash is 2.8-3.2g/cm 3 。
6. The sleeve grouting material of claim 1, wherein the micro bead powder is vitrified micro bead powder, and the particle size of the micro bead powder is 1000 meshes.
7. The sleeve grout of claim 1, wherein said expansion agent is a UEA expansion agent.
8. The sleeve grouting material as claimed in any of claims 1 to 7, characterised in that its preparation method comprises the following steps: drying and mixing portland cement, sulphoaluminate cement, silica fume, fly ash, micro-bead powder and an expanding agent, adding graded quartz sand and stirring, adding water, a water reducing agent and a defoaming agent and stirring, and adding steel fibers to obtain the sleeve grouting material.
9. The sleeve grouting material as claimed in any of claims 1 to 7, characterised in that its preparation method comprises the following steps: drying and mixing portland cement, sulphoaluminate cement, fly ash, bead powder and an expanding agent for 90s, adding quartz sand and stirring for 1min, adding water, a water reducing agent and a defoaming agent, stirring for 1.5min at a low speed, stirring for 2.5min at a high speed, continuously adding steel fibers within 1min to obtain an initial grouting material, standing the initial grouting material for 20-30min, and stirring for 60s to obtain the sleeve grouting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211593231.9A CN115849841A (en) | 2022-12-12 | 2022-12-12 | Sleeve grouting material suitable for quick connection of intelligent assembling bridge fabrication machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211593231.9A CN115849841A (en) | 2022-12-12 | 2022-12-12 | Sleeve grouting material suitable for quick connection of intelligent assembling bridge fabrication machine |
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| CN115849841A true CN115849841A (en) | 2023-03-28 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094668A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Grout composition and grout material using the same |
| JP2013173634A (en) * | 2012-02-24 | 2013-09-05 | Ube Industries Ltd | Grout composition, grout slurry and grout hardened material |
| CN104817309A (en) * | 2015-04-07 | 2015-08-05 | 重庆大学 | Grouting material for prefabricated member reinforcing steel bar connection, and preparation method thereof |
| CN106810176A (en) * | 2017-03-29 | 2017-06-09 | 石家庄市易达恒联路桥材料有限公司 | A kind of low viscosity upper flow regime strength cement-based grouting material |
| CN108929084A (en) * | 2018-08-03 | 2018-12-04 | 上海住信住宅工业有限公司 | Reinforcing bar sleeve for connection grouting material |
| CN110642570A (en) * | 2019-09-25 | 2020-01-03 | 山东省建筑科学研究院 | Special mortar for pouring miniature pile and preparation method and application thereof |
| CN110818364A (en) * | 2019-12-20 | 2020-02-21 | 河北建筑工程学院 | Light high-strength waterproof concrete and preparation method thereof |
| CN111908873A (en) * | 2020-07-22 | 2020-11-10 | 南通联泷装配式建筑科技有限公司 | Micro-expansion, early-strength, high-strength, weathering-resistant and low-cost sleeve grouting material and preparation method thereof |
| CN113387612A (en) * | 2021-06-18 | 2021-09-14 | 武汉三源特种建材有限责任公司 | Viscosity-reducing enhanced anti-cracking agent and preparation method thereof |
-
2022
- 2022-12-12 CN CN202211593231.9A patent/CN115849841A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008094668A (en) * | 2006-10-13 | 2008-04-24 | Denki Kagaku Kogyo Kk | Grout composition and grout material using the same |
| JP2013173634A (en) * | 2012-02-24 | 2013-09-05 | Ube Industries Ltd | Grout composition, grout slurry and grout hardened material |
| CN104817309A (en) * | 2015-04-07 | 2015-08-05 | 重庆大学 | Grouting material for prefabricated member reinforcing steel bar connection, and preparation method thereof |
| CN106810176A (en) * | 2017-03-29 | 2017-06-09 | 石家庄市易达恒联路桥材料有限公司 | A kind of low viscosity upper flow regime strength cement-based grouting material |
| CN108929084A (en) * | 2018-08-03 | 2018-12-04 | 上海住信住宅工业有限公司 | Reinforcing bar sleeve for connection grouting material |
| CN110642570A (en) * | 2019-09-25 | 2020-01-03 | 山东省建筑科学研究院 | Special mortar for pouring miniature pile and preparation method and application thereof |
| CN110818364A (en) * | 2019-12-20 | 2020-02-21 | 河北建筑工程学院 | Light high-strength waterproof concrete and preparation method thereof |
| CN111908873A (en) * | 2020-07-22 | 2020-11-10 | 南通联泷装配式建筑科技有限公司 | Micro-expansion, early-strength, high-strength, weathering-resistant and low-cost sleeve grouting material and preparation method thereof |
| CN113387612A (en) * | 2021-06-18 | 2021-09-14 | 武汉三源特种建材有限责任公司 | Viscosity-reducing enhanced anti-cracking agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马正先等: ""矿物掺合料对钢纤维灌浆料性能影响试验"", 《建筑技术》, vol. 52, no. 10, pages 1176 - 1179 * |
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