CN204647580U - A kind of ultra-high performance concrete pipeline of novel form of reinforcement - Google Patents

A kind of ultra-high performance concrete pipeline of novel form of reinforcement Download PDF

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Publication number
CN204647580U
CN204647580U CN201520272920.9U CN201520272920U CN204647580U CN 204647580 U CN204647580 U CN 204647580U CN 201520272920 U CN201520272920 U CN 201520272920U CN 204647580 U CN204647580 U CN 204647580U
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China
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pipeline
ultra
reinforcement
high performance
performance concrete
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CN201520272920.9U
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Chinese (zh)
Inventor
杨医博
刘金涛
郑福斌
郭文瑛
谭志健
谭颖垚
廖芮
郭振海
王恒昌
蔡铉烨
黄鸿浩
潘文智
冼剑华
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The utility model discloses a kind of ultra-high performance concrete pipeline of novel form of reinforcement, comprise pipe main body and be arranged on the Framework Of Steel Reinforcement in described pipe main body, described Framework Of Steel Reinforcement comprises the ring muscle evenly arranged along pipe main body length direction and the vertical muscle connecting each ring muscle, and the shape of described ring muscle is oval.Pipe ring muscle prepared by the utility model is oval reinforcing bar, makes the intensity of reinforcing bar obtain effective utilization, improves the collapse load of pipeline, light unit weight, easy construction, inner wall smooth, intensity are high, reasonable stress and reinforcing bar utilization ratio high.

Description

A kind of ultra-high performance concrete pipeline of novel form of reinforcement
Technical field
The utility model belongs to building material field, is specifically related to a kind of ultra-high performance concrete pipeline of novel form of reinforcement.
Background technique
On water supply and drainage pipeline market now, general has two kinds of pipelines, and one is plastic pipe, and another kind is reinforced concrete pipiline.Also have in addition cast-iron pipe and concrete duct etc. due to defect obvious, performance is not widely used not as plastic tube and concrete reinforced pipe.It is little that plastic pipe has inwall friction factor, constructs convenient, the advantages such as anti-corrosion capacity is strong.But plastic pipe also has distortion large, and anti-pressure ability is not enough, the high obvious limitation of unit price.It is high that reinforced concrete pipiline has intensity, the feature that unit price is low, but relative to plastic pipe, have inner wall coarse again, from great, and the inferior positions such as constructional difficulties and corrosion resistance are not strong.Moreover, conventional steel bar concrete pipeline form of reinforcement is reasonable not, and cause pipeline local easily cracking, cracking resistance is not strong, extremely unfavorable to the impermeability of bearing pipe.In sum, a kind of novel high-quality pipeline of model utility addresses these problems very urgent.
In pipeline material, what conventional pipelines was applied is all conventional concrete.Ultra-high performance concrete has obtained considerable research and development at present, its performance has high strength, high tenacity, high cracking resistance and well workability, at electric power cover plate, the application such as railway cover plate defines ripe technology, and according to the lid surface unusual light of practice by mold forming in plastics, be applicable to the shaping of inner-walls of duct, solve the problem that conventional concrete inner-walls of duct is coarse.As known from the above, ultra-high performance concrete and pipeline field can slitless connections.In arrangement of reinforcement, the Framework Of Steel Reinforcement of conventional pipelines overlaps form by indulging muscle and circular ring muscle, can concentrate at four local stress that produce up and down of pipeline when destroying, insides of pipes upper-lower position tension, left and right, outside tension, circular ring muscle arrangement of reinforcement is even, and can not adapt to the uneven stress condition of pipeline, therefore a kind of novel form of reinforcement can address this problem.
Model utility content
The purpose of this utility model is to provide a kind of ultra-high performance concrete pipeline of novel form of reinforcement.This pipeline adopts pumping-up method shaping, and pipeline material adopts Steel Skeleton and the ultra-high performance concrete of novel form of reinforcement.Phase
Than the pipeline existed in market, have high strength, high-durability, high cracking resistance, high reinforcing bar utilization ratio, arrangement of reinforcement is reasonable, the advantages such as inner wall smooth, conducts oneself with dignity moderate, easy construction.
The purpose of this utility model is achieved in that
A kind of ultra-high performance concrete pipeline of novel form of reinforcement, comprise pipe main body and be arranged on the Framework Of Steel Reinforcement in described pipe main body, described Framework Of Steel Reinforcement comprises the ring muscle evenly arranged along pipe main body length direction and the vertical muscle connecting each ring muscle, and the shape of described ring muscle is oval.
Further, described Framework Of Steel Reinforcement protective layer thickness is not less than 10mm, and pipe thickness is not less than 60mm.
The utility model additionally provides a kind of ultra-high performance concrete pipeline preparation method of novel form of reinforcement, and the pipeline shaping die of employing comprises steel external mold and internal mold, comprises step:
1) welded reinforcement skeleton, the vertical muscle of skeleton is constant, and ring muscle is processed into ellipse.
2) assembly jig fix Framework Of Steel Reinforcement, is connected pumping machine with mould, and checks its sealability;
3) ultra-high performance concrete mixture is prepared;
4) ultra-high performance concrete mixture is added in pumping machine, adopt pumping jacking technique to prepare pipeline;
5), after pumping, that seals mould in time closes grouting port;
6) pipeline band mold integral maintenance, treats that ultra-high performance concrete possesses strength of mould stripping and can carry out form removal;
7) mould is removed;
8) carry out hydrothermal curing or natural curing after pipeline form removal, meet the demands to intensity.
Further, in described ultra-high performance concrete, the mass ratio of sand and gelatinization material is 0.8 ~ 1.5:1, the mass ratio of water and gelatinization material is 0.14 ~ 0.20:1, water reducing agent consumption is 1.6 ~ 3.0% of gelatinization material quality, fiber quality is 3% ~ 17% of gelatinization material quality, in described gelatinization material, cement quality percentage is 80% ~ 40%, and surplus is mineral admixture.
Further, described fiber is micro steel fiber.
Further, described fiber is micro steel fiber and organic fiber mixture, and wherein the addition content of organic fiber is 0.1% ~ 0.5% of gelatinization material quality, and surplus is micro steel fiber.
Further, described organic fiber is PVA fiber or superhigh molecular weight polyethylene fibers.
Further, the time of described hydrothermal curing is 24h-72h, and curing temperature is 75-90 degree Celsius, and humidity is greater than 90%.
Further, described Framework Of Steel Reinforcement protective layer thickness is not less than 10mm, and pipe thickness is not less than 60mm.
Further, described internal mold is rigid plastics internal mold or steel-rubber combined inner mold, and described steel-rubber combined inner mold is a kind of inner membrance be spliced by steel assembly and the rubber section between steel assembly.
Further, the material of described rigid plastics internal mold is acrylic acid copolymer PVC=polyvinyl chloride, polyethylene, PVC=polyvinyl chloride, rigid polyvinyl chloride, and rigid plastics internal mold thickness is more than or equal to 5mm.
Further, when internal mold is steel-rubber combined inner mold, when removing mould in described step 7, remove steel external mold and steel-rubber combined inner mold, when internal mold is rigid plastics internal mold, when removing mould in described step 7, remove steel external mold and rigid plastics internal mold, or only remove steel external mold, retain the part of rigid plastics internal mold as pipeline.
Beneficial effect of the present invention:
1, compared with the ultra-high performance concrete pipe of joining circular ring muscle, reinforcing bar is in tension side forever, makes the intensity of reinforcing bar obtain effective utilization, and collapse load improves more than 10%.
2, compared with plastic tube, intensity height of the present invention not easily produces distortion, and quality greatly not easily occurs floating;
3, compared with traditional reinforced concrete pipiline, inventive pipeline inner wall smooth, the roughness coefficient is little, be conducive to current to pass through, and the outer ultra-high performance concrete that adopts significantly can reduce pipeline wall thickness under the constant prerequisite of bearing capacity, reduces conduit volume, constructability, the reduction of erection time.
4, adopt pumping jacking technique, effectively solve the shaping difficult problem of ultra-high performance concrete pipeline.
Accompanying drawing explanation
Fig. 1 is the ultra-high performance concrete pipeline transverse cross-sectional view of a kind of novel form of reinforcement described in the utility model.
Fig. 2 is the ultra-high performance concrete pipeline B-B sectional drawing of a kind of novel form of reinforcement described in the utility model.
Fig. 3 is the ultra-high performance concrete pipeline C-C sectional drawing of a kind of novel form of reinforcement described in the utility model.
Shown in figure be: 1-ring muscle; 2-pipe main body.
Embodiment
Be described in further detail the purpose of this utility model below in conjunction with the drawings and specific embodiments, embodiment can not repeat one by one at this, but therefore mode of execution of the present utility model is not defined in following examples.
embodiment 1
As shown in Figure 1 to Figure 3; a kind of ultra-high performance concrete pipeline of novel form of reinforcement; comprise pipe main body 2 and be arranged on the Framework Of Steel Reinforcement in described pipe main body 2; described Framework Of Steel Reinforcement comprises the ring muscle 1 evenly arranged along pipe main body 2 length direction and the vertical muscle connecting each ring muscle 1; the shape of described ring muscle 1 is oval; described Framework Of Steel Reinforcement protective layer thickness is not less than 10mm, and pipe thickness is not less than 60mm.
embodiment 2
A kind of ultra-high performance concrete pipeline preparation method of novel form of reinforcement, the pipeline shaping die adopted comprises steel external mold and rigid plastics internal mold, in rigid plastics, mold materials is acrylic acid copolymer PVC=polyvinyl chloride, thickness is 8mm, internal diameter of the pipeline 1000mm, wall thickness 60mm (see Fig. 1 to Fig. 3), comprises step:
1) welded reinforcement skeleton, the vertical muscle of skeleton is constant, and ring muscle 1 is processed into ellipse, joins 16 vertical muscle, vesica piscis muscle spacing 240mm;
2) assembly jig fix Framework Of Steel Reinforcement, is connected pumping machine with mould, and checks its sealability;
3) ultra-high performance concrete mixture is prepared;
4) ultra-high performance concrete mixture is added in pumping machine, adopt pumping jacking technique formed pipe;
5), after pumping, that seals mould in time closes grouting port;
6) pipeline band mold integral maintenance, treats that ultra-high performance concrete possesses strength of mould stripping and can carry out form removal;
7) remove mould, remove steel external mold and rigid plastics internal mold;
8) carry out hydrothermal curing after pipeline form removal, meet the demands to intensity.
Specifically, in ultra-high performance concrete described in the present embodiment, the mass ratio of sand and gelatinization material is 0.8:1, the mass ratio of water and gelatinization material is 0.14:1, water reducing agent consumption is 3.0% of gelatinization material quality, fiber blends amount of substance is 17% of gelatinization material quality, in described gelatinization material, cement quality percentage is 80%, and surplus is mineral admixture.
Specifically, the described fiber of the present embodiment is micro steel fiber, and water reducing agent is the polycarboxylate water-reducer of 40% solid content.
Specifically, the time of the described hydrothermal curing of the present embodiment is 24h, and curing temperature is 90 degrees Celsius, and humidity is greater than 90%.
Specifically, the described Framework Of Steel Reinforcement of the present embodiment is positioned at pipe main body 2, and protective layer thickness is not less than 10mm.
Pipeline external load test method prepared by the present embodiment is according to GBT 16752-2006 " Test methods of concrete and reinforced concrete drainage and sewer pipes ".Test to obtain cracking load 100.36kN/m, collapse load 155.32 kN/m.This pipeline external pressure load has reached III grade of concrete reinforced pipe cracking load 89 KN/m of internal diameter 1000, wall thickness 100mm, the standard of collapse load 134KN/m, and wall thickness reduces 40%, during installation, as shown in Figure 1, A in figure need be faced up.
embodiment 3
A ultra-high performance concrete pipeline preparation method for novel form of reinforcement, the pipeline shaping die of employing comprises steel external mold and steel-rubber combined inner mold, internal diameter of the pipeline 1200mm, and wall thickness 90mm, comprises step:
1) welded reinforcement skeleton, the vertical muscle of skeleton is constant, and ring muscle 1 is processed into ellipse, joins 20 vertical muscle, hoop muscle spacing 150mm;
2) assembly jig fix Framework Of Steel Reinforcement, is connected pumping machine with mould, and checks its sealability;
3) ultra-high performance concrete mixture is prepared;
4) ultra-high performance concrete mixture is added in pumping machine, adopt pumping jacking technique formed pipe;
5), after pumping, that seals mould in time closes grouting port;
6) pipeline band mold integral maintenance, treats that ultra-high performance concrete possesses strength of mould stripping and can carry out form removal;
7) remove mould, remove steel external mold and steel-rubber combined inner mold;
8) carry out natural curing after pipeline form removal, meet the demands to intensity.
Specifically, in the described ultra-high performance concrete of the present embodiment, the mass ratio of sand and gelatinization material is 1.0:1, the mass ratio of water and gelatinization material is 0.16:1, and water reducing agent consumption is 2.5% of gelatinization material quality, and fiber quality is 10% of gelatinization material quality.In described gelatinization material, cement quality percentage is 70%, and surplus is mineral admixture.
Specifically, the described fiber of the present embodiment is micro steel fiber and organic fiber mixture, and wherein organic fiber addition content is 0.5% of gelatinization material quality, and surplus is micro steel fiber, and water reducing agent is the polycarboxylate water-reducer of 40% solid content.
Specifically, the described organic fiber of the present embodiment is PVA fiber.
Specifically, the described Framework Of Steel Reinforcement of the present embodiment is positioned at pipe main body 2, and protective layer thickness is not less than 10mm.
Duct test prepared by the present embodiment obtains cracking load 120.25kN/m, collapse load 230.37 kN/m.External load test method is with embodiment 1.
This pipeline external pressure load has reached III grade of concrete reinforced pipe cracking load 107 KN/m of internal diameter 1200, wall thickness 120mm, the standard of collapse load 161KN/m, and wall thickness reduces 25%, and mounting type is identical with embodiment 1.
embodiment 4
A ultra-high performance concrete pipeline preparation method for novel form of reinforcement, the pipeline shaping die of employing comprises steel external mold and rigid plastics internal mold, and in rigid plastics, mold materials is PVC=polyvinyl chloride, thickness is 5mm, internal diameter of the pipeline 1000mm, wall thickness 80mm, comprises step:
1) welded reinforcement skeleton, the vertical muscle of skeleton is constant, and ring muscle 1 is processed into ellipse, joins 16 vertical muscle, vesica piscis muscle spacing 240mm;
2) assembly jig fix Framework Of Steel Reinforcement, is connected pumping machine with mould, and checks its sealability;
3) ultra-high performance concrete mixture is prepared;
4) ultra-high performance concrete mixture is added in pumping machine, adopt pumping jacking technique formed pipe;
5), after pumping, that seals mould in time closes grouting port;
6) pipeline band mold integral maintenance, treats that ultra-high performance concrete possesses strength of mould stripping and can carry out form removal;
7) remove mould, only remove steel external mold, do not remove rigid plastics internal mold;
8) carry out hydrothermal curing after pipeline form removal, meet the demands to intensity.
Specifically, in ultra-high performance concrete described in the present embodiment, the mass ratio of sand and gelatinization material is 1.2:1, the mass ratio of water and gelatinization material is 0.18:1, water reducing agent consumption is 2.1% of gelatinization material quality, fiber blends amount of substance is 3% of gelatinization material quality, in described gelatinization material, cement quality percentage is 40%, and surplus is mineral admixture.
Specifically, the described fiber of the present embodiment is micro steel fiber, and water reducing agent is the polycarboxylate water-reducer of 40% solid content.
Specifically, the time of the described hydrothermal curing of the present embodiment is 72h, and curing temperature is 75 degrees Celsius, and humidity is greater than 90%.
Specifically, the described Framework Of Steel Reinforcement of the present embodiment is positioned at pipe main body 2, and protective layer thickness is not less than 10mm.
Duct test prepared by the present embodiment obtains cracking load 95.45kN/m, collapse load 145.36 kN/m.External load test method is with embodiment 1.This pipeline external pressure load has reached III grade of concrete reinforced pipe cracking load 89 KN/m of internal diameter 1000, wall thickness 100mm, the standard of collapse load 134KN/m.Mounting type is identical with embodiment 1.
embodiment 5
A ultra-high performance concrete pipeline preparation method for novel form of reinforcement, the pipeline shaping die of employing comprises steel external mold and rigid plastics internal mold, and in rigid plastics, mold materials is rigid polyvinyl chloride, thickness is 10mm, internal diameter of the pipeline 1200mm, wall thickness 80mm, comprises step:
1) welded reinforcement skeleton, the vertical muscle of skeleton is constant, and ring muscle 1 is processed into ellipse, joins 20 vertical muscle, hoop muscle spacing 90mm;
2) assembly jig fix Framework Of Steel Reinforcement, is connected pumping machine with mould, and checks its sealability;
3) ultra-high performance concrete mixture is prepared;
4) ultra-high performance concrete mixture is added in pumping machine, adopt pumping jacking technique formed pipe;
5), after pumping, that seals mould in time closes grouting port;
6) pipeline band mold integral maintenance, treats that ultra-high performance concrete possesses strength of mould stripping and can carry out form removal;
7) remove mould, remove steel external mold and steel-made internal mould;
8) carry out hydrothermal curing after pipeline form removal, meet the demands to intensity.
Specifically, in the described ultra-high performance concrete of the present embodiment, the mass ratio of sand and gelatinization material is 1.5:1, the mass ratio of water and gelatinization material is 0.2:1, and water reducing agent consumption is 1.6% of gelatinization material quality, and fiber quality is 13% of gelatinization material quality.In described gelatinization material, cement quality percentage is 70%, and surplus is mineral admixture.
Specifically, the described fiber of the present embodiment is micro steel fiber and organic fiber mixture, and wherein organic fiber addition content is 0.1% of gelatinization material quality, and surplus is micro steel fiber, and water reducing agent is the polycarboxylate water-reducer of 40% solid content.
Specifically, the described organic fiber of the present embodiment is superhigh molecular weight polyethylene fibers.
Specifically, the time of the described hydrothermal curing of the present embodiment is 48h, and curing temperature is 85 degrees Celsius, and humidity is greater than 90%.
Specifically, the described Framework Of Steel Reinforcement of the present embodiment is positioned at pipe main body 2, and protective layer thickness is not less than 10mm.
Duct test prepared by the present embodiment obtains cracking load 120.34kN/m, collapse load 210.58kN/m.External load test method is with embodiment 1.
This pipeline external pressure load has reached III grade of concrete reinforced pipe cracking load 107 KN/m of internal diameter 1200, wall thickness 120mm, the standard of collapse load 161KN/m, and wall thickness reduces 33%, and mounting type is identical with embodiment 1.
The above, be only patent preferred embodiment of the present invention, but the protection domain of patent of the present invention is not limited thereto.Anyly be familiar with those skilled in the art in the scope disclosed in patent of the present invention, be equal to according to the technological scheme of patent of the present invention and inventive concept thereof and replace or change, all belong to the protection domain of patent of the present invention.The above, be only the utility model patent preferred embodiment, but the protection domain of the utility model patent is not limited thereto.Anyly be familiar with those skilled in the art in the scope disclosed in the utility model patent, be equal to according to the technological scheme of the utility model patent and model utility design thereof and replace or change, all belong to the protection domain of the utility model patent.

Claims (2)

1. the ultra-high performance concrete pipeline of a novel form of reinforcement, comprise concrete duct main body (2) and be arranged on the Framework Of Steel Reinforcement in described concrete duct main body (2), it is characterized in that: described Framework Of Steel Reinforcement comprises the ring muscle (1) evenly arranged along concrete duct main body (2) length direction and the vertical muscle connecting each ring muscle (1), the shape of described ring muscle (1) is oval.
2. the ultra-high performance concrete pipeline of novel form of reinforcement according to claim 1, is characterized in that: described Framework Of Steel Reinforcement protective layer thickness is not less than 10mm, and pipe thickness is not less than 60mm.
CN201520272920.9U 2015-04-30 2015-04-30 A kind of ultra-high performance concrete pipeline of novel form of reinforcement Expired - Fee Related CN204647580U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832720A (en) * 2015-04-30 2015-08-12 华南理工大学 Novel reinforced bar type ultra-high-performance concrete pipeline and preparing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104832720A (en) * 2015-04-30 2015-08-12 华南理工大学 Novel reinforced bar type ultra-high-performance concrete pipeline and preparing method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150916

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