CN103850444A - Steel strand polymer mortar reinforcement technology - Google Patents
Steel strand polymer mortar reinforcement technology Download PDFInfo
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- CN103850444A CN103850444A CN201210517595.9A CN201210517595A CN103850444A CN 103850444 A CN103850444 A CN 103850444A CN 201210517595 A CN201210517595 A CN 201210517595A CN 103850444 A CN103850444 A CN 103850444A
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Abstract
The invention relates to a reinforced concrete building reinforcement technology, in particular to a steel strand polymer mortar reinforcement technology which is a technology for reinforcing a concrete structural member. The steel strand polymer mortar reinforcement technology comprises the following steps of 1, weaving a steel strand mesh; 2, treating a base layer; 3, mounting and fixing the steel strand mesh; 4, brushing an interface agent; 5, smearing permeability polymer mortar; 6, maintaining the permeability polymer mortar layer. According to the technology disclosed by the invention, the appearance of a building is kept constant; under a condition of keeping the original appearance of the structural member, the retained non-dismounted structural member is reinforced or repaired and reformed.
Description
Technical field
The present invention relates to building structure reinforcement technology, be specifically related to concrete steel building reinforcement process.
Background technology
For extending the application life of building or for heritage buildings is preserved, often needing building to reinforce.How constant in architectural appearance, keep under the condition of former member appearance, reservation is not torn open to member and reinforce or repair transformation?
Summary of the invention
The object of the invention is to, provide steel strand polymer mortar reinforcement process, to solve the problems of the technologies described above.
Technical problem solved by the invention can realize by the following technical solutions:
Steel strand polymer mortar reinforcement process, is a reinforcement process of reinforcing for concrete structure member, it is characterized in that, comprises the steps:
Step 1, establishment steel wire mesh sheet, utilizes steel strand establishment steel wire mesh sheet according to on-the-spot size;
Step 2, base treatment, roots out concrete structure member and need reinforce original floated coat at position, expose concrete structure layer completely, and clean out, reject loose or defective part concrete to solid surface, defective position is filled up to smooth by cement mortar;
Step 3, installs fixing steel wire mesh sheet, steel wire mesh sheet is fixed and is tensioned in basic unit after treatment with fixture;
Step 4, brushing interfacial agents, even brushing interfacial agents on fixture and steel wire mesh sheet;
Step 5, smears osmotic polymer mortar, in brushing interfacial agents within an hour, is applied in by mortar laminated osmotic polymer that to reinforce position thick to 25mm, forms osmotic polymer screed, is coated with magma receives light on osmotic polymer screed surface;
Step 6, maintenance osmotic polymer screed, by the mode maintenance osmotic polymer screed of water spray, keeps its moisture state 3 days.
Technique of the present invention can, keeping architectural appearance constant, keep under the condition of former member appearance, reservation is not torn open to member and reinforce or repair transformation.
In step 2, the preferred cement MU10 of cement mortar mortar.If indivedual reinforcing steel bars exposeds and corrosion, should carry out sealing with cement MU10 mortar after processing of rust removing again.When base treatment, can adopt hand electric emery wheel to clear up.With cement MU10 mortar, defective position is filled up smooth after, have after complete intensity until cement MU10 mortar, more fixing steel wire mesh sheet be installed, in order to avoid steel wire mesh sheet end is fixing not firm.
In step 3, fixture comprises anchor bolt, stator.In the end of concrete structure member, one side is squeezed into anchor bolt, by draw ring, steel wire mesh sheet one end is fixed, and draw ring carefully checks after being installed on steel wire mesh sheet end, if any loosening or necessary replacing that come off; After checking well, steel wire mesh sheet is carried out to on-the-spot stretch-draw until tensioned state; Then the other end of steel wire mesh sheet is installed to draw ring, and be fixed on the opposite side of the end of concrete structure member by anchor bolt.Along the width spacing 400mm of concrete structure member, length direction spacing 1000mm squeezes into anchor bolt, and steel wire mesh sheet inside is fixed in basic unit with stator.
Concrete structure member can be reinforced concrete beam, and along deck-siding direction spacing 400mm, beam length direction spacing 1000mm squeezes into anchor bolt, and with the fixing steel wire mesh sheet of stator, in beam side, Shear Strengthening steel wire mesh sheet is installed.
Concrete structure member can also be armored concrete slab, and along plate amaranth direction spacing 400mm, plate direction spacing 1000mm squeezes into anchor bolt, and with the fixing steel wire mesh sheet of stator.
The steel strand at anchor bolt place must not have joint; Must strain by the steel strand of force direction there is no bending, loose, dislocation.The maximum fabric width of steel wire mesh sheet is no more than 1m.
Before step 4, the most handy clear water is sprayed to abundant moistening fixture and steel wire mesh sheet.Before step 5, the concrete structure member surface being reinforced should squirt processing.
Step 5, while smearing osmotic polymer mortar, preferred pressure gunite.When engineering quantity hour, also can adopt artificial semar technique, but need firmly catch up with densification real.Spraying process should divide 3 roads, road ~ 4 to carry out, and rear spraying together should be carried out after front one initial stage sclerosis.
Described osmotic polymer screed is preferably greater than 2MPa by adhesion strength, and compressive strength is greater than 45MPa, and the osmotic polymer mortar that tensile strength is greater than 9MPa forms.
Described osmotic polymer mortar adopts the high strength cement mortar that is mixed with modified epoxy emulsion or acrylic acid ester emulsion.
The preferred tensile strength standard value of described steel strand is not less than the high strength stainless steel twisted wire of 1.470MPa.
In order to improve the performance of concrete structure member, below osmotic polymer screed top layer, lay the piezoelectric ceramics chip arrays being formed by piezoelectric ceramic piece, described piezoelectric ceramics chip arrays connects a microprocessor system, described microprocessor system connects a battery, also connects a power supply port.In the time that concrete structure member is out of shape, piezoelectric ceramics chip arrays can generate electricity by pressurized like this, and microprocessor system in battery, is inserted electrical power storage to need after electric equipment at power supply port, microprocessor system control power flow power supply port.
Described microprocessor system also connects a communication module, and described communication module is a wireless communication module.In the time that concrete structure member is deformed to a certain degree, described microprocessor system can send alarm signal to the external world by wireless communication module.
Described piezoelectric ceramic piece can be embedded between described steel wire mesh and described osmotic polymer screed.
Described microprocessor system also connects a sensing system, a display module, and described microprocessor system is obtained physical quantity to be detected by sensing system, and the physical quantity detecting is externally shown by display module.
Brief description of the drawings
Fig. 1 is process sequence diagram of the present invention;
Fig. 2 is circuit block diagram of the present invention.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, further set forth the present invention below in conjunction with concrete diagram.
With reference to Fig. 1, steel strand polymer mortar reinforcement process, is a reinforcement process of reinforcing for concrete structure member, comprises the steps: step 1, and establishment steel wire mesh sheet utilizes steel strand establishment steel wire mesh sheet according to on-the-spot size; Step 2, base treatment, roots out concrete structure member and need reinforce original floated coat at position, expose concrete structure layer completely, and clean out, reject loose or defective part concrete to solid surface, defective position is filled up to smooth by cement mortar; Step 3, installs fixing steel wire mesh sheet, steel wire mesh sheet is fixed and is tensioned in basic unit after treatment with fixture; Step 4, brushing interfacial agents, even brushing interfacial agents on fixture and steel wire mesh sheet; Step 5, smears osmotic polymer mortar, in brushing interfacial agents within an hour, is applied in by mortar laminated osmotic polymer that to reinforce position thick to 25mm, forms osmotic polymer screed, is coated with magma receives light on osmotic polymer screed surface; Step 6, maintenance osmotic polymer screed, by the mode maintenance osmotic polymer screed of water spray, keeps its moisture state 3 days.Technique of the present invention can, keeping architectural appearance constant, keep under the condition of former member appearance, reservation is not torn open to member and reinforce or repair transformation.
Construction equipment is as follows:
The some handles of electric hand drill (non-impact type), drill bit is some, end draw ring, special anchor bolt, the clamp of arranging net, steel wire mesh tension clamp, steel wire mesh tensioner and transfer, traveling stage etc.
Construction material is as follows:
(1) high strength stainless steel twisted wire ф 3.05, tensile strength standard value is not less than 1.470MPa.(2) interfacial agents.(3) osmotic polymer mortar (adhesion strength is greater than 2MPa, and compressive strength is greater than 45MPa, and tensile strength is greater than 9MPa).(4) cement mortar of jointing or repairing use, grade of mortar MU10.Osmotic polymer screed is preferably greater than 2MPa by adhesion strength, and compressive strength is greater than 45MPa, and the osmotic polymer mortar that tensile strength is greater than 9MPa forms.Osmotic polymer mortar adopts the high strength cement mortar that is mixed with modified epoxy emulsion or acrylic acid ester emulsion.The preferred tensile strength standard value of steel strand is not less than the high strength stainless steel twisted wire of 1.470MPa.
Adopt the process of above-mentioned technique to reinforced concrete beam construction:
(1) work out guiding principle twisted wire net sheet according to the size of on-the-spot beam.(2) substrate surface processing.A. root out and reinforce the original floated coat in position, expose concrete structure layer completely, and clean out, indivedual positions can adopt hand electric emery wheel to clear up.B. reject loose or defective part concrete to solid surface.C. with cement MU10 mortar, the position of defect is filled up to smooth, reveal individually muscle corrosion, also should carry out sealing again after processing of rust removing.(3) end one side at the bottom of beam is squeezed into anchor bolt, by draw ring, selvage a slice is fixed, and draw ring carefully checks after being installed on steel strand end, if any loosening or necessary replacing that come off.(4) steel wire mesh sheet being carried out to scene is stretched to the anchor bolt that strenthening member opposite side is installed after pretension (steel strand are tightened) state and fixes.(5), by designing requirement, along deck-siding direction spacing 400mm, beam length direction spacing 1000mm squeezes into anchor bolt, and with stator fixed network sheet.(6) class is equidirectional installs Shear Strengthening net sheet in beam side (position of designing requirement), notes the steel tree lace spacing difference of different parts net sheet.(7) strenthening member surface is sprayed to fully moistening with clear water.(8) by match ratio requirement preparation interfacial agents, and be reinforced even brushing interfacial agents on test piece and net sheet.(9) by match ratio requirement preparation osmotic polymer mortar, it is thick to 25mm that layering is applied in reinforcing position, and the construction of osmotic polymer mortar should be carried out within interfacial agents brushing 1h.(10) mortar surface needs magma to receive light, so that next step directly carries out coatings decoration construction.(11) wet curing screed, keeps its moisture state 3d.
Adopt the process of above-mentioned technique to armored concrete slab construction:
(1) work out net sheet according to scene, general amplitude is 1000mm.(2) substrate surface processing.A. root out the original leveling layer of plate face (or plate degree, be as the criterion with designing requirement) to former concrete structure layer with, and clean up; B. reject loose or defective part concrete to solid surface.C. with cement MU10 mortar, the position of defect is filled up to smooth, reveal individually muscle corrosion, also should carry out sealing again after processing of rust removing.(3) play anchor bolt in a side of Ban Ding (or at the bottom of plate, being as the criterion with designing requirement), by draw ring, net sheet is fixing on one side, stretch-draw ring should carefully check after being installed on steel strand end, if any having loosening or coming off and must change.(4) steel wire mesh sheet is carried out to scene and be stretched to after pretension (steel strand are tightened) state, the anchor bolt of strenthening member opposite side is installed and is fixed.(5) if designing requirement is two-way, repeating step (3) ~ (4).(6), by designing requirement, along plate amaranth direction spacing 400mm, plate direction spacing 1000mm squeezes into anchor bolt, and with stator fixed network sheet.(7) strenthening member surface is sprayed to fully moistening with clear water.(8) by match ratio requirement preparation interfacial agents, and be reinforced even brushing interfacial agents on test specimen and net sheet.(9) by match ratio requirement preparation osmotic polymer mortar, it is thick to 25mm that layering is applied in reinforcing position, and the construction of osmotic polymer mortar should be carried out within 1h after interfacial agents brushing.(10) mortar answers magma surface to receive light, so that next step directly carries out decoration construction.(11) wet curing screed, keeps moisture state 3d.
The environmental requirement of construction is as follows:
(1) under general environment, the long-term environment temperature using is not higher than 60 DEG C, concrete structure under particular surroundings, it is reinforced except adopting the polymer formulation mortar of resistance to environmental factor effect, still should observe existing national standard, the regulation of GB50046 Code for design of corrosion prevention of industrial buildings, and take corresponding safeguard procedures.
(2) in the time that there is fire protection requirement on the surface of reinforced structure, member, should be by the fire resistance rating of present GB 50016 building fire protection regulation and stipulations and fire endurance requirement, to steel strand---polymer mortar skin is protected.
Construction precautions
1 aspect of ensuring the quality of products
(1) before construction, should write special constructure scheme, and examine and pass through by supervisor; Operating personnel should take appointment with certificate.(2) netting size is strictly undertaken by designing requirement, and wide cut should be worked out according to on-the-spot scantling, and maximum fabric width is no more than 1m.(3) stretch-draw ring should carefully check after being installed on steel strand end, if any loosening or necessary replacing that come off.(4) in net sheet installation process, should ensure the interval of 4mm ~ 5mm between net sheet and member, visual actual conditions are installed mortar pad.(5) after steel wire mesh sheet is installed and fixedly completed, test after batch acceptance(check), the next procedure of being allowed for access construction.Before the construction of osmotic polymer mortar, be reinforced component surface and should squirt processing.(6) if there is the local position that adopts cement mortar to fill up, mortar has after complete intensity, then fixed network sheet is installed, in order to avoid net sheet end is fixing not firm.(7) while spraying osmotic polymer mortar, should preferentially select pressure injection method, when engineering quantity hour, also can adopt artificial semar technique, but should firmly catch up with densification real.Spraying should divide 3 roads, road ~ 4 to carry out, and rear spraying together should be carried out after front one initial stage sclerosis.
2 ensure secure context
(1) if in the time that construction beam is spent, construct again after should first setting up scaffold, guarantee safety.(2) bolt preformed hole can not adopt the impact drilling, and bore diameter, the degree of depth are in strict accordance with designing requirement.(3) in drilling construction, if find, indivedual member damage comparisons are serious, row construction again after reporting designer to propose processing scheme.(4) while construction, should note protecting original style and features member, avoid damaging original style and features member, what need interim dismounting should carry out mark, in statu quo recover.(5) while construction, should note protecting original design, pipeline, avoid loss.(6) well-ventilated should be managed in the preparation of polymer mortar and field of employment.(7) indivedual high-rise workings, must fasten seat belts, not eminence parabolic.
With reference to Fig. 2, in order to improve the performance of concrete structure member, below osmotic polymer screed top layer, can also lay the piezoelectric ceramics chip arrays being formed by piezoelectric ceramic piece, described piezoelectric ceramics chip arrays connects a microprocessor system, described microprocessor system connects a battery, also connects a power supply port.In the time that concrete structure member is out of shape, piezoelectric ceramics chip arrays can generate electricity by pressurized like this, and microprocessor system in battery, is inserted electrical power storage to need after electric equipment at power supply port, microprocessor system control power flow power supply port.
Described microprocessor system also connects a communication module, and described communication module is a wireless communication module.In the time that concrete structure member is deformed to a certain degree, described microprocessor system can send alarm signal to the external world by wireless communication module.
Described microprocessor system also connects a sensing system, a display module, and described microprocessor system is obtained physical quantity to be detected by sensing system, and the physical quantity detecting is externally shown by display module.
Described piezoelectric ceramic piece can be embedded in osmotic polymer screed, after the osmotic polymer screed initial stage sclerosis of the 1st road spraying, just can lay in the above piezoelectric ceramics chip arrays.Described piezoelectric ceramic piece can also be embedded between described steel wire mesh and described osmotic polymer screed.
Can in every square, establish a piezoelectric ceramic piece, form array by a plurality of piezoelectric ceramic pieces.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. steel strand polymer mortar reinforcement process, is a reinforcement process of reinforcing for concrete structure member, it is characterized in that, comprises the steps:
Step 1, establishment steel wire mesh sheet, utilizes steel strand establishment steel wire mesh sheet according to on-the-spot size;
Step 2, base treatment, roots out concrete structure member and need reinforce original floated coat at position, expose concrete structure layer completely, and clean out, reject loose or defective part concrete to solid surface, defective position is filled up to smooth by cement mortar;
Step 3, installs fixing steel wire mesh sheet, steel wire mesh sheet is fixed and is tensioned in basic unit after treatment with fixture;
Step 4, brushing interfacial agents, even brushing interfacial agents on fixture and steel wire mesh sheet;
Step 5, smears osmotic polymer mortar, in brushing interfacial agents within an hour, is applied in by mortar laminated osmotic polymer that to reinforce position thick to 25mm, forms osmotic polymer screed, is coated with magma receives light on osmotic polymer screed surface;
Step 6, maintenance osmotic polymer screed, by the mode maintenance osmotic polymer screed of water spray, keeps its moisture state 3 days.
2. steel strand polymer mortar reinforcement process according to claim 1, it is characterized in that: in step 2, cement mortar is cement MU10 mortar, if indivedual reinforcing steel bars exposeds and corrosion, should carry out sealing with cement MU10 mortar again after processing of rust removing, with cement MU10 mortar, defective position is filled up smooth after, have after complete intensity until cement MU10 mortar, more fixing steel wire mesh sheet be installed.
3. steel strand polymer mortar reinforcement process according to claim 1, is characterized in that: in step 3, fixture comprises anchor bolt, stator;
In the end of concrete structure member, one side is squeezed into anchor bolt, by draw ring, steel wire mesh sheet one end is fixed, and draw ring carefully checks after being installed on steel wire mesh sheet end, if any loosening or necessary replacing that come off; After checking well, steel wire mesh sheet is carried out to on-the-spot stretch-draw until tensioned state;
Then the other end of steel wire mesh sheet is installed to draw ring, and be fixed on the opposite side of the end of concrete structure member by anchor bolt.
4. steel strand polymer mortar reinforcement process according to claim 3, it is characterized in that: in step 3, along the width spacing 400mm of concrete structure member, length direction spacing 1000mm squeezes into anchor bolt, and steel wire mesh sheet inside is fixed in basic unit with stator.
5. steel strand polymer mortar reinforcement process according to claim 3, is characterized in that: in step 3, concrete structure member is reinforced concrete beam or armored concrete slab.
6. steel strand polymer mortar reinforcement process according to claim 3, is characterized in that: in step 3, the maximum fabric width of steel wire mesh sheet is no more than 1m.
7. steel strand polymer mortar reinforcement process according to claim 1, is characterized in that: in step 5, spraying process should divide 3 roads, road ~ 4 to carry out, and rear spraying together should be carried out after front one initial stage sclerosis.
8. according to the steel strand polymer mortar reinforcement process described in any one in claim 1 to 7, it is characterized in that: below osmotic polymer screed top layer, lay the piezoelectric ceramics chip arrays being formed by piezoelectric ceramic piece, described piezoelectric ceramics chip arrays connects a microprocessor system, described microprocessor system connects a battery, also connects a power supply port.
9. steel strand polymer mortar reinforcement process according to claim 8, is characterized in that: described microprocessor system also connects a communication module, described communication module is a wireless communication module.
10. steel strand polymer mortar reinforcement process according to claim 8, it is characterized in that: described microprocessor system also connects a sensing system, a display module, described microprocessor system is obtained physical quantity to be detected by sensing system, and the physical quantity detecting is externally shown by display module.
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| CN201210517595.9A CN103850444A (en) | 2012-12-05 | 2012-12-05 | Steel strand polymer mortar reinforcement technology |
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| CN201210517595.9A CN103850444A (en) | 2012-12-05 | 2012-12-05 | Steel strand polymer mortar reinforcement technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049867A (en) * | 2016-06-23 | 2016-10-26 | 郑州三迪建筑科技有限公司 | Building method for special-shaped building model |
| CN106437155A (en) * | 2016-10-09 | 2017-02-22 | 郑州三迪建筑科技有限公司 | Irregular building style construction method |
| CN108798058A (en) * | 2018-06-21 | 2018-11-13 | 黑龙江民安减隔震科技有限公司 | A kind of reinforcement of building technique |
| CN109826456A (en) * | 2019-01-11 | 2019-05-31 | 青岛海靓新型建材有限公司 | Mortar curing process |
| CN110616646A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Method and structure for reinforcing concrete original bridge |
| CN110616645A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Reinforcing method and reinforcing structure of old concrete bridge |
-
2012
- 2012-12-05 CN CN201210517595.9A patent/CN103850444A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049867A (en) * | 2016-06-23 | 2016-10-26 | 郑州三迪建筑科技有限公司 | Building method for special-shaped building model |
| CN106437155A (en) * | 2016-10-09 | 2017-02-22 | 郑州三迪建筑科技有限公司 | Irregular building style construction method |
| CN108798058A (en) * | 2018-06-21 | 2018-11-13 | 黑龙江民安减隔震科技有限公司 | A kind of reinforcement of building technique |
| CN109826456A (en) * | 2019-01-11 | 2019-05-31 | 青岛海靓新型建材有限公司 | Mortar curing process |
| CN110616646A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Method and structure for reinforcing concrete original bridge |
| CN110616645A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Reinforcing method and reinforcing structure of old concrete bridge |
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Application publication date: 20140611 |