CN107572919A - A kind of repairing type concrete - Google Patents
A kind of repairing type concrete Download PDFInfo
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- CN107572919A CN107572919A CN201710836227.3A CN201710836227A CN107572919A CN 107572919 A CN107572919 A CN 107572919A CN 201710836227 A CN201710836227 A CN 201710836227A CN 107572919 A CN107572919 A CN 107572919A
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Abstract
The invention discloses a kind of repairing type concrete, in terms of the component of parts by weight, including following component：75 95 parts of grit, 18 26 parts of grail, 80 100 parts of yellow ground, 48 parts of filler, 30 50 parts of cement, 0.05 0.15 parts of polycarboxylate water-reducer, 0.15 0.3 parts of synergist, excess water, the present invention is in the presence of high efficiency water reducing agent, not only there is high fluidity, and the rubble in the concrete after levelling is evenly distributed rationally, and then the workability of concrete improves, moreover, under metallo-plastic and nano silicon effect, there is larger compressive property.
Description
Technical field
The present invention relates to a kind of repairing type concrete.
Background technology
There are the quality problems of early stage for bridge, bridge component, on the premise of reconstruction is not removed, beam slab is carried out former
Position repairing and reinforcement.To the Self-leveling of concrete, the requirement of self-compaction is high, and is high-grade concrete, and the difficulty of construction is big, fills
Geat is narrow, and reinforcing bar density is high, and the space between template and bridge is limited, and the mobility of sandstone is small in normal concrete, levelling
Rubble skewness in concrete afterwards.
The content of the invention
In view of the deficienciess of the prior art, the invention provides a kind of repairing type concrete, not only with high fluidity,
And the rubble in the concrete after levelling is evenly distributed rationally.
To achieve the above object, the invention provides following technical scheme：A kind of repairing type concrete, with the group of parts by weight
Divide meter, including following component：Grit 75-95 parts, grail 18-26 parts, yellow ground 80-100 parts, filler 4-8 parts, cement 30-
50 parts, polycarboxylate water-reducer 0.05-0.15 parts, synergist 0.15-0.3 parts, excess water.
Using above-mentioned technical proposal, high efficiency water reducing agent has Strong dispersion effect to cement, can greatly improve cement mixture
Mobility and concrete slump, while water consumption is greatly lowered, significantly improve workability of concrete, and synergist maximum limit
Water reducer is excited degree, density enhancing, is lifted concrete permeability resistance, is reduced concrete crack.
Preferably, the filler is flyash or volcanic ash.
Using above-mentioned technical proposal, the high additive of volcanic ash or flyash, which substitutes cement, can improve the flowing of concrete
Property and be advantageous to its play " shape effect ", " active effect ", " micro aggregate effect " triple effect, flyash coordinate proper amount of nano
The incorporation of silica, miberal powder can then possess preferably while ensureing that metallo-plastic and concrete substrate have suitable cohesion
Ductility.
Preferably, the particle diameter of the grit is 16mm-25mm, the particle diameter 5mm-16mm of the grail.
Using above-mentioned technical proposal, grit under the grading size, obtains the mobility maximum of concrete with grail,
So that concrete flows the reinforcing bar in bridge structure, while the rubble point after filling in concrete quickly through narrow perfusing hole
Cloth is more uniform.
Preferably, in terms of parts by weight of component, in addition to metallo-plastic 10-20 parts.
Using above-mentioned technical proposal, by adding metallo-plastic, so as to form high tensile metal plastic concrete, metallo-plastic
Concrete is that a kind of new heterogeneous composite material that the short metallo-plastic of random distribution is formed is mixed in normal concrete,
The metallo-plastic of these random distributions can effectively hinder the extension of inside concrete microcrack and the formation of macrocrack, show
Improve tension, bending resistance, shock resistance and the anti-fatigue performance of concrete with writing, there is preferable ductility.
Preferably, the metallo-plastic is using Porous Cu as metallic framework, Porous Cu is filled in polytetrafluoroethylene (PTFE)
Space in form.
Using above-mentioned technical proposal, the concrete that disclosure satisfy that to obtain first has the characteristics of sufficient intensity, secondly because
It is added directly among concrete, and concrete is filled up among bridge component, therefore metallo-plastic not only can be with concrete
In raw material rub, and can be rubbed with the reinforcing bar in bridge component, and improved by the polytetrafluoroethylene (PTFE) of filling
The self-lubricating property of metal material, on the one hand reach wear-resisting effect, on the other hand reduce friction, improve mobility.
Preferably, in terms of parts by weight of component, in addition to swelling agent 6-8 parts.
Using above-mentioned technical proposal, normal concrete tends to occur seepage, reduce it uses work(due to shrinkage cracking
Energy and durability；8%-12% swelling agent is mixed in cement, can mixing into expansive concrete, substantially increase coagulation
The anti-cracking waterproof ability of soil structure.
Preferably, in terms of parts by weight of component, in addition to nano silicon 6-8 parts.
Above-mentioned technical proposal is used, although the metallo-plastic of addition improves the intensity of concrete, metallo-plastic
During too high levels, larger space is formed between cement, causes intensity decreases on the contrary, therefore use a certain amount of nano-silica
SiClx is filled so that metallo-plastic concrete is more closely knit, and anti-pressure ability can be improved further.
In summary, mainly under the conditions of high efficiency water reducing agent, enable to the mobility of concrete reduces the present invention, and is
Avoid slump numerical value excessive, so as to improving the workability of concrete；Using being added into metallo-plastic, and use nano-silica
SiClx is filled, and has larger compressive property；In addition, metallo-plastic is using Porous Cu as metallic framework, with polytetrafluoro
Ethene is filled in the space of Porous Cu, is entered without influenceing the mobility of concrete, while protect metallo-plastic to avoid its abrasion.
Embodiment
Contrasted below by way of 9 test groups are formulated,
Embodiment 1-3, a kind of repairing type concrete, its component and its parts by weight are as shown in table 1：
The embodiment 1-3 of the table 1 a kind of component and its parts by weight of repairing type concrete
Wherein, synergist is SY-T Concrete synergists；In embodiment 2, metallo-plastic be using Porous Cu as metallic framework, with
Polytetrafluoroethylene (PTFE) is filled in the space of Porous Cu and formed；In embodiment 3, metallo-plastic be using Porous Cu as metallic framework,
It is filled in the space of Porous Cu and is formed with makrolon.
The embodiment 4-6 of table 2, a kind of component and its parts by weight of repairing type concrete
Wherein, synergist is SY-T Concrete synergists；Metallo-plastic is using Porous Cu as metallic framework, with polytetrafluoroethylene (PTFE)
It is filled in the space of Porous Cu and forms；It is limited purchased from Beijing Dechang great achievement architectural engineering technology that cement expansive material is repaired on road surface
Company.
The comparative example 1-3 of table 3, a kind of component and its parts by weight of repairing type concrete
Wherein, synergist is SY-T Concrete synergists；Metallo-plastic is using Porous Cu as metallic framework, with polytetrafluoroethylene (PTFE)
It is filled in the space of Porous Cu and forms；It is limited purchased from Beijing Dechang great achievement architectural engineering technology that cement expansive material is repaired on road surface
Company.
Concrete performance characterizes one, and the mobility of concrete is tested using slump flow：Pass through embodiment 1-6 and contrast
Concrete is prepared in example 1-3, and slump value is bigger, and mobility is bigger accordingly, uses《Normal concrete mix physical performance tries
Proved recipe method》(GB/T 50080-2002) regulation is tested, and result is reported in Table 4 below；
Concrete performance characterizes two, the cubic compressive strength test of concrete, is prepared by embodiment 1-6 and comparative example 1-3
Obtain concrete molding and obtain 100mm*100mm*100mm test cubes, test every group of 6 test specimen 7d intensity, take it average
It is worth intensity as every group of concrete, resistance to compression uses microcomputer controlled electro-hydraulic servo pressure testing machine, model YAW-4206, as a result
It is reported in Table 4 below.
The slump value and compression strength of the test group of table 4
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (7)
- A kind of 1. repairing type concrete, it is characterised in that in terms of the component of parts by weight, including following component：Grit 75-95 Part, grail 18-26 parts, yellow ground 80-100 parts, filler 4-8 parts, cement 30-50 parts, polycarboxylate water-reducer 0.05-0.15 parts, Synergist 0.15-0.3 parts, excess water.
- A kind of 2. repairing type concrete according to claim 1, it is characterised in that in terms of parts by weight of component, the filler For flyash or volcanic ash.
- 3. a kind of repairing type concrete according to claim 2, it is characterised in that the particle diameter of the grit is 16mm- 25mm, the particle diameter 5mm-16mm of the grail.
- A kind of 4. repairing type concrete according to claim 2, it is characterised in that in terms of parts by weight of component, in addition to gold Belong to plastics 10-20 parts.
- 5. a kind of repairing type concrete according to claim 3, it is characterised in that the metallo-plastic is made with Porous Cu For metallic framework, it is filled in the space of Porous Cu and is formed with polytetrafluoroethylene (PTFE).
- A kind of 6. repairing type concrete according to claim 1, it is characterised in that in terms of parts by weight of component, in addition to it is swollen Swollen dose of 6-8 part.
- 7. a kind of repairing type concrete according to claim 1, it is characterised in that in terms of parts by weight of component, in addition to receive Rice silica 6-8 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710836227.3A CN107572919A (en) | 2017-09-16 | 2017-09-16 | A kind of repairing type concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710836227.3A CN107572919A (en) | 2017-09-16 | 2017-09-16 | A kind of repairing type concrete |
Publications (1)
| Publication Number | Publication Date |
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| CN107572919A true CN107572919A (en) | 2018-01-12 |
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| CN201710836227.3A Pending CN107572919A (en) | 2017-09-16 | 2017-09-16 | A kind of repairing type concrete |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617085A (en) * | 2011-01-30 | 2012-08-01 | 中铁八局集团建筑工程有限公司 | Self-compacting concrete for foundation of high speed railway turnout plate |
| CN102765912A (en) * | 2012-08-15 | 2012-11-07 | 中铁二十三局集团有限公司 | Self-compacting concrete and manufacture method thereof |
| CN102898107A (en) * | 2012-10-26 | 2013-01-30 | 苏州市姑苏新型建材有限公司 | Concrete healant |
| CN106242429A (en) * | 2016-08-09 | 2016-12-21 | 郑州大学 | A kind of high tenacity concrete reinforced by assorted fiber and preparation method thereof |
-
2017
- 2017-09-16 CN CN201710836227.3A patent/CN107572919A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617085A (en) * | 2011-01-30 | 2012-08-01 | 中铁八局集团建筑工程有限公司 | Self-compacting concrete for foundation of high speed railway turnout plate |
| CN102765912A (en) * | 2012-08-15 | 2012-11-07 | 中铁二十三局集团有限公司 | Self-compacting concrete and manufacture method thereof |
| CN102898107A (en) * | 2012-10-26 | 2013-01-30 | 苏州市姑苏新型建材有限公司 | Concrete healant |
| CN106242429A (en) * | 2016-08-09 | 2016-12-21 | 郑州大学 | A kind of high tenacity concrete reinforced by assorted fiber and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王宝民: "《纳米二氧化硅高性能混凝土性能及机理》", 31 May 2012, 辽宁科学技术出版社 * |
| 陈向锋: "《混凝土搅拌站管理实用手册》", 31 October 2011, 中国建材工业出版社 * |
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Application publication date: 20180112 |