CN104163606A - Checkable-plumpness prestressed duct grouting material and manufacture thereof, and method for prestressed duct grouting - Google Patents
Checkable-plumpness prestressed duct grouting material and manufacture thereof, and method for prestressed duct grouting Download PDFInfo
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- CN104163606A CN104163606A CN201410366825.5A CN201410366825A CN104163606A CN 104163606 A CN104163606 A CN 104163606A CN 201410366825 A CN201410366825 A CN 201410366825A CN 104163606 A CN104163606 A CN 104163606A
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Abstract
A checkable-plumpness prestressed duct grouting material is formed by on-site water addition and stirring of a checkable-plumpness pre-mixed dry powder grouting material; the checkable-plumpness pre-mixed dry powder grouting material is a mixture composed of the following raw materials in parts by weight: 100 parts by weight of cement, 15-30 parts by weight of fly ash, 0.5-2 parts by weight of a water reducing agent, 15-30 parts by weight of light calcium carbonate, 10-40 parts by weight of a contrast material, 6-10 parts by weight of a composite expanding agent, 0-0.3 part by weight of a latex powder, and 0.2-1 part by weight of cellulose ether. The method for prestressed duct grouting comprises the steps: firstly, manufacturing the checkable-plumpness pre-mixed dry powder grouting material in a factory, then transporting to a construction site, adding water according to the proportion to obtain the prestressed duct grouting material, and after passing inspection, carrying out duct grouting, wherein a portable X ray inspection machine can be used in the grouting process for detecting the grouting plumpness quality at any time.
Description
Technical field
The present invention relates to building material field, material of main a kind of prestressed pore passage grouting for post-tensioned prestressing concrete beam hole path pressure grouting and preparation method thereof and the method for prestressed pore passage grouting.
Background technology
Generally to check the quality of back-tension prestressed channel mudjacking, the plumpness of being in the milk, all to carry out after being in the milk, at present, a lot of for detection method, the measuring means mode of prestressed concrete structure pore squeezing quality both at home and abroad, comprising: x-ray method, impact echo method, ultrasonicly involve Electromagnetic Wave Method and rear perforate detection etc., various detection methods, measuring means has feature and deficiency separately, x-ray method, impact echo method, the ultrasonic Electromagnetic Wave Method that involves there is no method and carries out extensive practicality, because whether these methods are all to exist the defects such as hole to differentiate plumpness in inspection duct, exist error ratio larger, reason is: concrete is by Behavior of Hardened Cement Paste, sand, the heterogeneous aggregate that the part such as rubble or cobble and free-water or various holes forms, these constituents have different specific acoustic resistances, Propagation of Energy attenuation ratio is larger, and HDPE plastics or metallic bellows and grout in prestressed pore passage, are increased, steel strand etc. medium, therefore be interfered larger, and perforate detection method cannot avoid damaging total in perforate process, weather resistance is had to adverse influence, and construction is very complicated, also in engineering, use less at present.
Therefore, developing a kind of prestress hole path pressure grouting material that can conveniently detect, is the urgent problems of expecting solution of builders.
Summary of the invention
The object of the present invention is to provide one carrying out hole path pressure grouting, mud jacking process and operation process in all can accurately, simply, effectively detect " a kind of prestressed pore passage grouting material of checking plumpness " of prestressed pore passage grouting plumpness, and the making of this prestressed pore passage grouting material that can check plumpness and the method for prestressed pore passage grouting are provided simultaneously "; The deficiency existing to solve its grouting plumpness prior art of back-tension prestressed channel mudjacking quality inspection.
For addressing the above problem, the technical solution used in the present invention is: a kind of prestressed pore passage grouting material of checking plumpness, to be added water at the scene to stir by the premixing dry powder mud jacking material that can detect plumpness to form, the mixture that the premixing dry powder mud jacking material of described detected plumpness is made up of following component raw material, in mixture, each component concentration is calculated as with parts by weight:
Cement 100 weight parts, flyash 15～30 weight parts,
Water reducer 0.5～2 weight part, light calcium carbonate 15～30 weight parts,
Radiography material 10～40 weight parts, composite expanding agent 6～10 weight parts,
Latex powder 0～0.3 weight part, ether of cellulose 0.2～1 weight part.
Its further technical scheme is: the cement that composition can detect the premixing dry powder mud jacking material of plumpness is low alkali,, intensity rank more than 42.5 silicate cement good to high efficiency water reducing agent consistency.
Described flyash is the above flyash of II level.
Described water reducer is dry powder high efficiency water reducing agent; It is the one among dry powder high-efficiency water-reducing agent of poly-carboxylic acid or dry powder naphthalene series high-efficiency water-reducing agent.
Described light calcium carbonate is the light calcium carbonate powder of order number >=325.
Described radiography material is the ground barium sulfate of barium sulfate content >=85%.
Described composite expanding agent is that one or more of concrete impervious anti-cracking type swelling agent AEA, UEA or HEA are composited.
Described latex powder is Redispersible emulsion powder; Be any one among multipolymer or vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer or the acrylic acid multipolymer of ethylene/vinyl acetate using polyvinyl alcohol as protective colloid, the spray-dried modified emulsion powder obtaining.
Described ether of cellulose is low-viscosity cellulose ether.
Its another relevant technical scheme is: a kind of making of the prestressed pore passage grouting material of checking plumpness and the method for prestressed pore passage grouting, and it comprises the following steps:
A, can detect the premixing dry powder mud jacking material of plumpness at produce in factory:
A1: get the raw materials ready: each component raw material of preparing " can detect the premixing dry powder mud jacking material of plumpness " by following requirement:
Cement: be low alkali,, intensity rank more than 42.5 silicate cement good to high efficiency water reducing agent consistency;
Flyash: be the above flyash of II level;
Water reducer: be dry powder high efficiency water reducing agent
,it is the one among dry powder high-efficiency water-reducing agent of poly-carboxylic acid or dry powder naphthalene series high-efficiency water-reducing agent;
Light calcium carbonate: the light calcium carbonate powder that is order number >=325;
Radiography material: the ground barium sulfate that is barium sulfate content >=85%;
Composite expanding agent: be that one or more of concrete impervious anti-cracking type swelling agent AEA, UEA or HEA are composited;
Latex powder: be Redispersible emulsion powder; Be any one among multipolymer or vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer or the acrylic acid multipolymer of ethylene/vinyl acetate using polyvinyl alcohol as protective colloid, the spray-dried modified emulsion powder obtaining;
Ether of cellulose is low-viscosity cellulose ether;
A2: above-mentioned materials is made to " the premixing dry powder mud jacking material that can detect plumpness " in following ratio mix and blend;
Cement 100 weight parts, flyash 15～30 weight parts,
Water reducer 0.5～2 weight part, light calcium carbonate 15～30 weight parts,
Radiography material 10～40 weight parts, composite expanding agent 6～10 weight parts,
Latex powder 0～0.3 weight part, ether of cellulose 0.2～1 weight part;
B, field fabrication prestressed pore passage grouting material: at the construction field (site) in the premixing dry powder mud jacking material that can detect plumpness: ratio=100 weight part of water: 26～30 weight part mix and blends are made " the prestressed pore passage grouting material that can check plumpness ";
C, with instrument testing measure newly mix
"can check the prestressed pore passage grouting material of plumpness " technical feature parameter, enter step D after qualified;
D, hole path pressure grouting: mud jacking process detects mud jacking plumpness quality with portable X-ray detection apparatus according to actual needs again;
E, sealing off and covering anchorage construction finish: after mud jacking plumpness quality detection passed examination, carry out sealing off and covering anchorage, construction finishes.
Owing to taking above technical scheme, a kind of of the present invention checks prestressed pore passage grouting material and the making thereof of plumpness and has following characteristics and beneficial effect for the method for prestressed pore passage grouting:
1. good with this mud jacking material property that can check the prestressed pore passage grouting material dry powder of plumpness to make, meet JTG/T F50-2011 " highway bridge and culvert construction technique normalizing " completely: back-tension prestressed channel mudjacking size performance index request (referring to subordinate list two, subordinate list three).
2. the present invention " can check the prestressed pore passage grouting material of plumpness " and adopts in factory automatic equipment and produce premixing dry mash, then the scene of delivering to adds water and stir into the perfusion of slurry mud jacking, ensures that the quality of mud jacking material is even, stable and reliable for performance.
Due to the present invention it " in can checking the premixing dry mash of prestressed pore passage grouting material of plumpness, added radiography material; be evenly distributed; the convenient test set that adopts detects; making it after mud jacking process and operation at any time can test slurry plumpness, and can realize quality control to slurry mud jacking filling process; Make whole pre-stress construction quality secure, improve corrosion-resistant, resistance to fatigue and the weather resistance of member.
4. the present invention can check the prestressed pore passage grouting material of plumpness and increase few for raw materials cost and the construction cost of the method for duct grouting; Cost performance is high.
In conjunction with the accompanying drawings and embodiments the present invention a kind of checked to the prestressed pore passage grouting material of plumpness and making thereof below, and be further described for the technical characterictic of the method for prestressed pore passage grouting.
Brief description of the drawings
Fig. 1 be the embodiment of the present invention two the prestressed pore passage grouting material that can check plumpness making and for the schematic flow sheet of the constructional method of duct grouting.
Embodiment
embodiment mono-:
A kind of prestressed pore passage grouting material of checking plumpness, to be added water at the scene to stir by the premixing dry powder mud jacking material that can detect plumpness to form, the mixture that the premixing dry powder mud jacking material of described detected plumpness is made up of following component raw material, in mixture, each component concentration is calculated as with parts by weight:
42.5# cement 100 weight parts, I level flyash 15 weight parts,
Polycarboxylate water-reducer 0.5 weight part, light calcium carbonate 20 weight parts,
Ground barium sulfate 10 weight parts, composite expanding agent 6 weight parts,
Ether of cellulose 0.2 weight part.
Described cement is low alkali,, intensity rank more than 42.5 silicate cement good to high efficiency water reducing agent consistency;
Described flyash is the above flyash of II level;
Described water reducer is dry powder high efficiency water reducing agent
;it is the one among dry powder high-efficiency water-reducing agent of poly-carboxylic acid or dry powder naphthalene series high-efficiency water-reducing agent;
Described light calcium carbonate is the light calcium carbonate powder of order number >=325;
Described radiography material is the ground barium sulfate of barium sulfate content >=85%;
Described composite expanding agent is that wherein one or more are composited for concrete impervious anti-cracking type swelling agent AEA, UEA or HEA;
Described ether of cellulose is low-viscosity cellulose ether.
Can check the prestressed pore passage grouting material of plumpness, be to add 28 weight parts waters stirrings by 100 weight part premixing dry powder at the scene by the premixing dry powder mud jacking material that can detect plumpness to form.
The making of the above-mentioned prestressed pore passage grouting material of checking plumpness and for the method for prestressed pore passage grouting, it comprises the following steps:
A, can detect the premixing dry powder mud jacking material of plumpness at produce in factory:
A1: get the raw materials ready: prepare on request the each component raw material through " can detect the premixing dry powder mud jacking material of plumpness " after the assay was approved,
A2: above-mentioned materials is made to " the premixing dry powder mud jacking material that can detect plumpness " in following ratio mix and blend:
Cement 100 weight parts, I level flyash 15 weight parts,
Polycarboxylate water-reducer 0.5 weight part, light calcium carbonate 20 weight parts,
Ground barium sulfate 10 weight parts, composite expanding agent 6 weight parts,
Ether of cellulose 0.2 weight part;
B, field fabrication prestressed pore passage grouting material: at the construction field (site) in the premixing dry powder mud jacking material that can detect plumpness: ratio=100 weight part of water: 26～30 weight part mix and blends are made " the prestressed pore passage grouting material that can check plumpness ";
C, measure the technical feature parameter of newly mixing " the prestressed pore passage grouting material that can check plumpness " with instrument testing, enter step D after qualified;
D, hole path pressure grouting: carry out according to a conventional method hole path pressure grouting, but mud jacking process will detect mud jacking plumpness quality with portable X-ray detection apparatus according to actual needs again;
E, sealing off and covering anchorage construction finish: after mud jacking plumpness quality detection passed examination, carry out sealing off and covering anchorage, construction finishes.
Embodiment bis-～embodiment six
Embodiment bis-～embodiment six is one conversion of the embodiment of the present invention one, its composition can detect the consumption of each component in the premixing dry powder mud jacking material of plumpness compared with embodiment mono-, can also increase or reduce, for example, can increase latex powder, the span of general each component is:
Above cement 100 weight parts of 42.5#, above flyash 20～30 weight parts of II level,
Water reducer 1.5～2.0 weight parts, light calcium carbonate 15～30 weight parts,
Radiography material 20～40 weight parts, composite expanding agent 8～10 weight parts,
Latex powder 0.15～0.3 weight part, ether of cellulose 0.2～1 weight part;
Described latex powder is Redispersible emulsion powder; Be one among multipolymer or vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer or the acrylic acid multipolymer of ethylene/vinyl acetate using polyvinyl alcohol as protective colloid, the spray-dried modified emulsion powder obtaining.
In the each embodiment of embodiment bis-～embodiment six, each component ratio is as follows:
In embodiment bis-, the consumption that composition can detect each component in the premixing dry powder mud jacking material of plumpness is:
52.5# cement 100 weight parts, II level flyash 22 weight parts, polycarboxylate water-reducer 1.5 weight parts,
Light calcium carbonate 15 weight parts, ground barium sulfate 20 weight parts, composite expanding agent 8 weight parts,
Latex powder 0.2 weight part, ether of cellulose 0.3 weight part;
Can check the prestressed pore passage grouting material of plumpness, be to add 27 weight parts waters stirrings by 100 weight part premixing dry powder at the scene by the premixing dry powder mud jacking material that can detect plumpness to form.
In embodiment tri-, the ratio that composition can detect each component in the premixing dry powder mud jacking material of plumpness is:
42.5# cement 100 weight parts, II level flyash 30 weight parts, polycarboxylate water-reducer 1 weight part,
Light calcium carbonate 20 weight parts, ground barium sulfate 30 weight parts, composite expanding agent 8 weight parts,
Latex powder 0.3 weight part, ether of cellulose 0.5 weight part;
Can check the prestressed pore passage grouting material of plumpness, be to add 28 weight parts waters stirrings by 100 weight part premixing dry powder at the scene by the premixing dry powder mud jacking material that can detect plumpness to form.
In embodiment tetra-, the ratio that composition can detect each component in the premixing dry powder mud jacking material of plumpness is:
52.5# cement 100 weight parts, I level flyash 20 weight parts, polycarboxylate water-reducer 1.8 weight parts,
Light calcium carbonate 30 weight parts, ground barium sulfate 20 weight parts, composite expanding agent 10 weight parts,
Latex powder 0.25 weight part, ether of cellulose 0.2 weight part;
Can check the prestressed pore passage grouting material of plumpness, be to add 27 weight parts waters stirrings by 100 weight part premixing dry powder at the scene by the premixing dry powder mud jacking material that can detect plumpness to form.
In embodiment five, the ratio that composition can detect each component in the premixing dry powder mud jacking material of plumpness is:
100 parts of 52.5# cement, 20 parts, II level flyash, 2.0 parts of polycarboxylate water-reducers,
20 parts of light calcium carbonates, 40 parts of ground barium sulfates, 8 parts of composite expanding agents,
0.15 part of latex powder, 1 part of ether of cellulose;
Can check the prestressed pore passage grouting material of plumpness, be to add 28 weight parts waters stirrings by 100 weight part premixing dry powder at the scene by the premixing dry powder mud jacking material that can detect plumpness to form.
The making method of the prestressed pore passage grouting material that can check plumpness of embodiment bis-～embodiment five and for the method for prestressed pore passage grouting with embodiment mono-, only due to each component ratio difference in each embodiment (referring to subordinate list one: the consumption table look-up that can detect each component in the premixing dry powder mud jacking material of plumpness in embodiment mono-～embodiment five), the technical feature parameter difference of " can check the prestressed pore passage grouting material of plumpness " of producing is (referring to subordinate list two, subordinate list three: the present invention can check prestressed pore passage grouting material properties test result and the JTG/T F50-2011 prestressed pore passage grouting material technical indicator contrast table one of plumpness, two).
The present invention " can detect the premixing dry powder mud jacking material of plumpness " in each amounts of components be also not limited only to the data that subordinate list one is listed, as long as all can in the scope of recording at specification sheets of the present invention or claims.
。
。
Claims (10)
1. can check the prestressed pore passage grouting material of plumpness for one kind, it is characterized in that: this prestressed pore passage grouting material that can check plumpness is to be added water at the scene to stir by the premixing dry powder mud jacking material that can detect plumpness to form, the mixture that the premixing dry powder mud jacking material of described detected plumpness is made up of following component raw material, in mixture, each component concentration is calculated as with parts by weight:
Cement 100 weight parts, flyash 15～30 weight parts,
Water reducer 0.5～2 weight part, light calcium carbonate 15～30 weight parts,
Radiography material 10～40 weight parts, composite expanding agent 6～10 weight parts,
Latex powder 0～0.3 weight part, ether of cellulose 0.2～1 weight part.
2. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: the cement that composition can detect the premixing dry powder mud jacking material of plumpness is low alkali,, intensity rank more than 42.5 silicate cement good to high efficiency water reducing agent consistency.
3. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described flyash is the above flyash of II level.
4. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described water reducer is dry powder high efficiency water reducing agent, is the one among dry powder high-efficiency water-reducing agent of poly-carboxylic acid or dry powder naphthalene series high-efficiency water-reducing agent.
5. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described light calcium carbonate is the light calcium carbonate powder of order number >=325.
6. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described radiography material is the ground barium sulfate of barium sulfate content >=85%.
7. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described composite expanding agent be concrete impervious anti-cracking type swelling agent AEA, UEA or HEA one or more be composited.
8. the prestressed pore passage grouting material of checking plumpness according to claim 1; it is characterized in that: described latex powder is Redispersible emulsion powder; be any one among multipolymer or vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer or the acrylic acid multipolymer of ethylene/vinyl acetate using polyvinyl alcohol as protective colloid, the spray-dried modified emulsion powder obtaining.
9. the prestressed pore passage grouting material of checking plumpness according to claim 1, is characterized in that: described ether of cellulose is low-viscosity cellulose ether.
10. can check plumpness prestressed pore passage grouting material making and for the method for prestressed pore passage grouting, it comprises the following steps:
A, can detect the premixing dry powder mud jacking material of plumpness at produce in factory:
A1: get the raw materials ready: each component raw material of preparing " can detect the premixing dry powder mud jacking material of plumpness " by following requirement:
Cement: be low alkali,, intensity rank more than 42.5 silicate cement good to high efficiency water reducing agent consistency;
Flyash: be the above flyash of II level;
Water reducer: being dry powder high efficiency water reducing agent, is the one among dry powder high-efficiency water-reducing agent of poly-carboxylic acid or dry powder naphthalene series high-efficiency water-reducing agent;
Light calcium carbonate: the light calcium carbonate powder that is order number >=325;
Radiography material: the ground barium sulfate that is barium sulfate content >=85%;
Composite expanding agent: be concrete impervious anti-cracking type swelling agent AEA, UEA or HEA one or more be composited;
Latex powder: be Redispersible emulsion powder; Be any one among multipolymer or vinyl acetate between to for plastic/tertiary monocarboxylic acid ethylene copolymer or the acrylic acid multipolymer of ethylene/vinyl acetate using polyvinyl alcohol as protective colloid, the spray-dried modified emulsion powder obtaining;
Ether of cellulose is low-viscosity cellulose ether;
A2: above-mentioned materials is made to " the premixing dry powder mud jacking material that can detect plumpness " in following ratio mix and blend;
Cement 100 weight parts, flyash 15～30 weight parts,
Water reducer 0.5～2 weight part, light calcium carbonate 15～30 weight parts,
Radiography material 10～40 weight parts, composite expanding agent 6～10 weight parts,
Latex powder 0～0.3 weight part, ether of cellulose 0.2～1 weight part;
B, field fabrication prestressed pore passage grouting material: at the construction field (site) in the premixing dry powder mud jacking material that can detect plumpness: ratio=100 weight part of water: 26～30 weight part mix and blends are made " the prestressed pore passage grouting material that can check plumpness ";
C, measure the technical feature parameter of newly mixing " the prestressed pore passage grouting material that can check plumpness " with instrument testing, enter step D after qualified;
D, hole path pressure grouting: mud jacking process detects mud jacking plumpness quality with portable X-ray detection apparatus according to actual needs again;
E, sealing off and covering anchorage construction finish: after mud jacking plumpness quality detection passed examination, carry out sealing off and covering anchorage, construction finishes.
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| CN201410366825.5A CN104163606A (en) | 2014-07-29 | 2014-07-29 | Checkable-plumpness prestressed duct grouting material and manufacture thereof, and method for prestressed duct grouting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410366825.5A CN104163606A (en) | 2014-07-29 | 2014-07-29 | Checkable-plumpness prestressed duct grouting material and manufacture thereof, and method for prestressed duct grouting |
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Citations (3)
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|---|---|---|---|---|
| RU2161695C2 (en) * | 1998-12-15 | 2001-01-10 | Предприятие "Кубаньгазпром" | Grouting mortar |
| CN102092997A (en) * | 2010-12-02 | 2011-06-15 | 上海城建（集团）公司 | Prestressed concrete pipe grouting agent |
| CN103058616A (en) * | 2012-12-25 | 2013-04-24 | 中国京冶工程技术有限公司 | Modified cement blending material and concrete used for grouting wall and prepared by the same |
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2014
- 2014-07-29 CN CN201410366825.5A patent/CN104163606A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2161695C2 (en) * | 1998-12-15 | 2001-01-10 | Предприятие "Кубаньгазпром" | Grouting mortar |
| CN102092997A (en) * | 2010-12-02 | 2011-06-15 | 上海城建（集团）公司 | Prestressed concrete pipe grouting agent |
| CN103058616A (en) * | 2012-12-25 | 2013-04-24 | 中国京冶工程技术有限公司 | Modified cement blending material and concrete used for grouting wall and prepared by the same |
Non-Patent Citations (2)
| Title |
|---|
| 安琳等: "后张预应力混凝土结构灌浆空洞X射线无损检测的试验研究", 《公路交通科技》, vol. 25, no. 1, 31 January 2008 (2008-01-31), pages 92 - 97 * |
| 李敏波等: "组成材料对压浆料物理性能的影响研究", 《新型建筑材料》, no. 6, 30 June 2013 (2013-06-30) * |
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Application publication date: 20141126 |