CN110608317A - UHPC water pipe structure and manufacturing process thereof - Google Patents
UHPC water pipe structure and manufacturing process thereof Download PDFInfo
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- CN110608317A CN110608317A CN201910903754.0A CN201910903754A CN110608317A CN 110608317 A CN110608317 A CN 110608317A CN 201910903754 A CN201910903754 A CN 201910903754A CN 110608317 A CN110608317 A CN 110608317A
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- water pipe
- uhpc
- pipe structure
- socket
- concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 239000004567 concrete Substances 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 9
- 238000001723 curing Methods 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000003651 drinking water Substances 0.000 claims description 5
- 235000020188 drinking water Nutrition 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000012615 aggregate Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000013007 heat curing Methods 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 10
- 238000005260 corrosion Methods 0.000 abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910021487 silica fume Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/04—Methods or machines specially adapted for the production of tubular articles by casting into moulds by simple casting, the material being neither positively compacted nor forcibly fed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/402—Methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/10—Sleeveless joints between two pipes, one being introduced into the other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/08—Rigid pipes of concrete, cement, or asbestos cement, with or without reinforcement
Abstract
The invention discloses a UHPC water pipe structure and a manufacturing process thereof, wherein the UHPC water pipe structure comprises a UHPC concrete pipe core, the outer wall surface of one end of the UHPC concrete pipe core is provided with a water pipe socket, the inner wall surface of the other end of the UHPC concrete pipe core is provided with a water pipe socket, and the water pipe socket is used for being spliced with the water pipe socket of the other section of the UHPC water pipe structure. Compared with a common concrete water pipe, the wall thickness of the UHPC water pipe is reduced by more than 50%, the weight of the UHPC water pipe is reduced by more than 50%, the consumption of reinforcing steel bars is reduced by more than 50%, the UHPC water pipe is poured, the problems of corrosion and leakage of pipelines are effectively solved, the durability of the water pipe is enhanced, and the UHPC water pipe is high in practicability. The manufacturing process of the UHPC water pipe structure cancels a steel bell and spigot without reinforcing bars, adopts a one-step vibration-free forming method, simplifies the manufacturing process, greatly reduces the manufacturing cost and improves the production efficiency.
Description
Technical Field
The invention relates to the field of building materials, in particular to a UHPC water pipe structure and a manufacturing process thereof.
Background
The current water pipe divide into the pressure pipe and do not have and press the pipe two kinds, and the pressure pipe is mostly reinforced concrete pressure pipe, generally adopts prestressed construction, does not have and presses the pipe and generally adopts steelframe concrete structure. The non-pressure pipe is generally used as a sewage pipe, the manufacturing material can be reinforced concrete, cast iron or the combination of several conventional materials, and the reinforced concrete non-pressure pipe has the advantages of large wall thickness, heavy pipe weight, low strength, poor durability and poor impermeability; the cast iron pipe has poor corrosion resistance and high manufacturing cost; the water pipe made of a plurality of materials, such as a PCCP (prestressed concrete cylinder pipe), is not only complex in manufacturing process, but also high in production cost and low in practicability.
Disclosure of Invention
The invention aims to provide a UHPC water pipe structure which has high strength, good toughness, excellent impermeability, durability and corrosion resistance and simplified forming mode and a manufacturing process thereof.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a UHPC water pipe structure which comprises a UHPC concrete pipe core, wherein a water pipe socket is arranged on the outer wall surface of one end of the UHPC concrete pipe core, a water pipe socket is arranged on the inner wall surface of the other end of the UHPC concrete pipe core, and the water pipe socket is used for being spliced with the water pipe socket of the other section of UHPC water pipe structure.
Optionally, a socket rubber gasket is sleeved outside the water pipe socket and is bonded with the outer wall surface of the water pipe socket through rubber glue.
Optionally, a socket rubber gasket is arranged on the water pipe socket, and the socket rubber gasket is bonded with the inner wall surface of the water pipe socket through rubber glue.
Optionally, the cross-sectional shape of the socket rubber gasket is trapezoidal.
Meanwhile, the invention discloses a manufacturing process based on the UHPC water pipe structure, which comprises the following steps:
step 1: cleaning the formed template, and assembling according to the template assembly requirement;
step 2: the preparation of UHPC concrete is carried out, which comprises the following steps:
step 2.1: preparing raw materials meeting the quality requirement, wherein the raw materials comprise cement, mineral admixture, water reducing agent, fine aggregate, drinking water and steel fiber;
step 2.2: calculating the mixing ratio according to a volume method, wherein the water-gel ratio is less than 0.20;
step 2.3: respectively metering various materials according to the calculated matching ratio, and ensuring that the weight error of each material meets the corresponding requirement;
and step 3: putting the raw materials into stirring equipment for stirring;
and 4, step 4: vertically, continuously and uniformly distributing materials in layers in a forming template, and carrying out vibration-free forming on the UHPC water pipe structure;
and 5: and (6) removing the mold.
Optionally, after the forming template is assembled in the step 1, a release agent is coated on the inner surface of the forming template.
Optionally, a maintenance step is further included between the step 4 and the step 5, steam curing or dry heat curing is adopted for maintenance, the belt mold is statically stopped for more than 12 hours before maintenance, the temperature of the static stop environment is not lower than 10 ℃, a plastic film is covered on the exposed surface of the UHPC water pipe structure, the temperature rise and fall rate of maintenance is not more than 20 ℃/h, the constant temperature time is more than 48 hours, and the constant temperature is not more than 90 ℃; and the temperature difference between the surface of the UHPC water pipe structure and the environment is not more than 25 ℃ when the mold is removed.
Optionally, the stirring device in step 3 is a forced stirrer, a blanking device for preventing fiber from agglomerating is arranged in the forced stirrer, and the primary stirring amount of the forced stirrer is not more than 60% of the rated stirring amount.
Optionally, in the step 5, the structure of the UHPC water pipe is not damaged by mould removal, and a vibration mode is not used for mould removal.
Optionally, after the step 5, a step of factory inspection is further included, before factory shipment, the structural performance, the UHPC strength, the member appearance, the member size and the like of the UHPC water pipe structure are inspected according to relevant standards, and only when the UHPC water pipe structure is qualified, the UHPC water pipe structure can be factory shipment.
Compared with the prior art, the invention has the following technical effects:
the UHPC water pipe structure provided by the invention has higher cost performance, fully utilizes the characteristics of high strength, good toughness and excellent impermeability, durability and corrosion resistance of the UHPC, reduces the wall thickness of the water pipe by more than 50 percent, reduces the weight by more than 50 percent and reduces the consumption of reinforcing steel bars by more than 50 percent compared with a common concrete water pipe, adopts UHPC for pouring, effectively solves the problems of corrosion and leakage of a pipeline, enhances the durability of the water pipe, and has strong practicability.
Meanwhile, the invention provides a manufacturing process of the UHPC water pipe structure, which cancels a steel bell and spigot without reinforcing bars, adopts a one-time vibration-free forming method, simplifies the manufacturing process, greatly reduces the manufacturing cost and improves the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of the structure of a UHPC water pipe of the present invention;
FIG. 2 is a flow chart of a process for making a UHPC water pipe structure according to the present invention;
wherein the reference numerals are: 1. a UHPC concrete pipe core; 2. a water pipe socket; 3. a water pipe socket; 4. a socket rubber gasket; 5. bellmouth rubber gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a UHPC water pipe structure which has high strength, good toughness, excellent impermeability, durability and corrosion resistance and simplified forming mode and a manufacturing process thereof.
Based on the structure, the invention provides a UHPC water pipe structure, which comprises a UHPC concrete pipe core, wherein the outer wall surface of one end of the UHPC concrete pipe core is provided with a water pipe socket, the inner wall surface of the other end of the UHPC concrete pipe core is provided with a water pipe socket, and the water pipe socket is used for being spliced with the water pipe socket of the other section of UHPC water pipe structure.
Meanwhile, the invention discloses a manufacturing process based on the UHPC water pipe structure, which comprises the following steps:
step 1: cleaning the formed template, and assembling according to the template assembly requirement;
step 2: the preparation of UHPC concrete is carried out, which comprises the following steps:
step 2.1: preparing raw materials meeting the quality requirement, wherein the raw materials comprise cement, mineral admixture, water reducing agent, fine aggregate, drinking water and steel fiber;
step 2.2: calculating the mixing ratio according to a volume method, wherein the water-gel ratio is less than 0.20;
step 2.3: respectively metering various materials according to the calculated matching ratio, and ensuring that the weight error of each material meets the corresponding requirement;
and step 3: putting the raw materials into stirring equipment for stirring;
and 4, step 4: vertically, continuously and uniformly distributing materials in layers in a forming template, and carrying out vibration-free forming on the UHPC water pipe structure;
and 5: and (6) removing the mold.
The UHPC water pipe structure provided by the invention has higher cost performance, fully utilizes the characteristics of high strength, good toughness and excellent impermeability, durability and corrosion resistance of the UHPC, reduces the wall thickness of the water pipe by more than 50 percent, reduces the weight by more than 50 percent and reduces the consumption of reinforcing steel bars by more than 50 percent compared with a common concrete water pipe, adopts UHPC for pouring, effectively solves the problems of corrosion and leakage of a pipeline, enhances the durability of the water pipe, and has strong practicability.
Meanwhile, the invention provides a manufacturing process of the UHPC water pipe structure, which cancels a steel bell and spigot without reinforcing bars, adopts a one-time vibration-free forming method, simplifies the manufacturing process, greatly reduces the manufacturing cost and improves the production efficiency.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a UHPC water pipe structure, which includes a UHPC concrete pipe core 1, wherein an outer wall surface of one end of the UHPC concrete pipe core 1 is provided with a water pipe socket 2, an inner wall surface of the other end of the UHPC concrete pipe core 1 is provided with a water pipe socket 3, and the water pipe socket 2 is used for being inserted into the water pipe socket 3 of another section of UHPC water pipe structure, so as to implement connection of the multiple sections of UHPC water pipe structures.
Further, as shown in fig. 1, in the present embodiment, a socket rubber gasket 4 is sleeved outside the water pipe socket 2, and the socket rubber gasket 4 is adhered to the outer wall surface of the water pipe socket 2 by rubber glue. And the cross-sectional shape of preferred socket rubber packing ring 4 is trapezoidal in this embodiment, is convenient for insert in water pipe bellmouth 3, more is favorable to improving the stability of accepting in the middle of water pipe socket 2 and water pipe bellmouth 3.
Further, as shown in fig. 1, a socket rubber gasket 5 is provided on the faucet 3 of the water pipe in the present embodiment, and the socket rubber gasket 5 is adhered to the inner wall surface of the faucet 3 of the water pipe by rubber cement.
Meanwhile, as shown in fig. 2, the embodiment discloses a manufacturing process based on the UHPC water pipe structure, which mainly includes the following steps:
step 1: cleaning the molding template, including cleaning the surface of the template and removing surface adhesives to achieve the effects of smoothness, no floating and sinking, no slag soil, no rust and no oil stain; assembling the templates according to template assembly requirements after the templates are cleaned;
specifically, after the templates are cleaned and assembled, a release agent should be uniformly coated on the inner surface of the formed template at a position for contacting with UHPC concrete, so that later-stage template removal is facilitated;
step 2: the preparation of the UHPC concrete specifically comprises the following steps:
step 2.1: preparing raw materials meeting the quality requirement, wherein the raw materials comprise cement, mineral admixture, water reducing agent, fine aggregate, drinking water and steel fiber; wherein:
a) the performance index of the cement meets the standard requirement of the current related products;
b) the mineral admixture is preferably selected from silica fume with the performance meeting GB/T27690, class I F fly ash meeting GB/T1596, ground slag powder above grade S95 meeting GB/T18046 or limestone powder meeting GB/T30190;
c) the water reducing agent is preferably a high-performance water reducing agent with the water reducing rate of not less than 30 percent, and the performance index meets the specification of GB 8076;
d) the fine aggregate can be quartz sand (powder), natural sand, machine-made sand and the like, and the performance of the fine aggregate meets the requirement of GB/T31387;
e) drinking water meeting the JGJ 63 requirement is used for mixing the ultra-high performance concrete;
f) the steel fiber properties should meet the requirements of table 1:
TABLE 1 Property requirements of the Steel fibers
| Item | Performance index |
| Tensile strength/MPa | ≥2000 |
| Length deviation/%) | ≤3 |
| Deviation of diameter/%) | ≤4 |
| Degree of conformity/degree of | ≥96 |
| Hazardous substances | Is not allowed to contain |
Step 2.2: calculating the mixing ratio according to a volume method, wherein the water-gel ratio is less than 0.20;
step 2.3: respectively metering various materials according to the calculated matching ratio, and ensuring that the weight error of each material meets the corresponding requirement;
and step 3: the raw materials are put into a stirring device for stirring, and the stirring time is determined according to the stirring device and the actual stirring effect of the UHPC;
and 4, step 4: the step specifically comprises two parts of transportation and vibration-free molding, wherein during transportation, a stirring transport vehicle (or a flying bucket) is used for transportation to ensure that the UHPC is not separated and isolated; during vibration-free molding, due to the fact that the UHPC water pipe is vertically molded, UHPC concrete is continuously and uniformly distributed in a layered mode along the upper edge of the water pipe, and meanwhile auxiliary vibration can be carried out on the side face of the molding template to eliminate surface bubbles;
and 5: removing the mold: curing the concrete test block with the same conditions, wherein the compressive strength of the concrete test block is 40MPa, and the lifting member can be disassembled; the mold stripping should not damage the UHPC water pipe structure, and vibration mode mold stripping should not be used.
Further, as shown in fig. 2, in this embodiment, a curing step is further included between step 4 and step 5, the curing is performed by steam curing or dry heat curing, the belt mold is left to stand for more than 12 hours before the curing, the temperature of the environment of the still standing is not lower than 10 ℃, the exposed surface of the UHPC water pipe structure is covered with a plastic film, the temperature rising and falling rate of the curing is not more than 20 ℃/h, the constant temperature time is not more than 48h, and the constant temperature is not more than 90 ℃; and the temperature difference between the surface of the UHPC water pipe structure and the environment is not more than 25 ℃ when the mold is removed.
Further, in this embodiment, preferably, the stirring device in step 3 is a forced stirrer, a blanking device for preventing fiber from agglomerating is arranged in the forced stirrer, and the primary stirring amount of the forced stirrer is not more than 60% of the rated stirring amount.
Further, after the step 5, the present embodiment further includes a step of factory inspection, that is, before factory shipment, the structural performance, the UHPC strength, the appearance of the member, the size of the member, and the like of the UHPC water pipe structure are inspected according to relevant standards, and the UHPC water pipe structure can be shipped only after being qualified.
In summary, when the UHPC water pipe structure of this embodiment is manufactured, first, the UHPC concrete is poured into the form, after the maintenance is completed, the form is removed, then the socket rubber gasket 5 and the socket rubber gasket 4 are adhered to the UHPC concrete pipe core 1 with the rubber cement, and finally, the factory inspection is performed.
Therefore, the UHPC water pipe structure provided by the invention has higher cost performance, fully utilizes the characteristics of high strength, good toughness and excellent impermeability, durability and corrosion resistance of the UHPC, reduces the wall thickness of the water pipe by more than 50 percent, reduces the weight by more than 50 percent and reduces the consumption of reinforcing steel bars by more than 50 percent compared with a common concrete water pipe, adopts UHPC for pouring, effectively solves the problems of corrosion and leakage of the pipeline, enhances the durability of the water pipe, and has strong practicability.
Meanwhile, the manufacturing process of the UHPC water pipe structure provided by the invention cancels a steel bell and spigot without reinforcing bars, adopts a one-step vibration-free forming method, simplifies the manufacturing process, greatly reduces the manufacturing cost and improves the production efficiency.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. A UHPC water pipe structure which characterized in that: the pipe joint comprises a UHPC concrete pipe core, wherein a water pipe socket is arranged on the outer wall surface of one end of the UHPC concrete pipe core, a water pipe socket is arranged on the inner wall surface of the other end of the UHPC concrete pipe core, and the water pipe socket is used for being spliced with the water pipe socket of another section of UHPC water pipe structure.
2. A UHPC water tube structure according to claim 1 wherein: the water pipe socket is sleeved with a socket rubber gasket, and the socket rubber gasket is bonded with the outer wall surface of the water pipe socket through rubber glue.
3. A UHPC water tube structure according to claim 1 wherein: and a bellmouth rubber gasket is arranged on the water pipe bellmouth and is bonded with the inner wall surface of the water pipe bellmouth through rubber glue.
4. The UHPC water pipe structure of claim 2, wherein: the cross section of the socket rubber gasket is trapezoidal.
5. A manufacturing process of the UHPC water pipe structure based on any one of claims 1-4 is characterized in that: the method comprises the following steps:
step 1: cleaning the formed template, and assembling according to the template assembly requirement;
step 2: the preparation of UHPC concrete is carried out, which comprises the following steps:
step 2.1: preparing raw materials meeting the quality requirement, wherein the raw materials comprise cement, mineral admixture, water reducing agent, fine aggregate, drinking water and steel fiber;
step 2.2: calculating the mixing ratio according to a volume method, wherein the water-gel ratio is less than 0.20;
step 2.3: respectively metering various materials according to the calculated matching ratio, and ensuring that the weight error of each material meets the corresponding requirement;
and step 3: putting the raw materials into stirring equipment for stirring;
and 4, step 4: vertically, continuously and uniformly distributing materials in layers in a forming template, and carrying out vibration-free forming on the UHPC water pipe structure;
and 5: and (6) removing the mold.
6. The process of claim 5 for making a UHPC water pipe structure, wherein: and (2) after assembling the forming template in the step 1, coating a release agent on the inner surface of the forming template.
7. The process of claim 5 for making a UHPC water pipe structure, wherein: a maintenance step is also included between the step 4 and the step 5, steam curing or dry heat curing is adopted for maintenance, the belt mold is statically stopped for more than 12 hours before maintenance, the temperature of the static stop environment is not lower than 10 ℃, a plastic film is covered on the exposed surface of the UHPC water pipe structure, the temperature rise and fall rate of maintenance is not more than 20 ℃/h, the constant temperature time is more than 48 hours, and the constant temperature is not more than 90 ℃; and the temperature difference between the surface of the UHPC water pipe structure and the environment is not more than 25 ℃ when the mold is removed.
8. The process of claim 5 for making a UHPC water pipe structure, wherein: the stirring equipment in the step 3 is a forced stirrer, a blanking device for preventing the fiber from agglomerating is arranged in the forced stirrer, and the primary stirring amount of the forced stirrer is not more than 60% of the rated stirring amount.
9. The process of claim 5 for making a UHPC water pipe structure, wherein: in the step 5, the structure of the UHPC water pipe cannot be damaged during mold removal, and a vibration mode cannot be used for mold removal.
10. The process of claim 5 for making a UHPC water pipe structure, wherein: and 5, a step of delivery inspection is further included after the step 5, before delivery, the structural performance, the UHPC strength, the component appearance, the component size and the like of the UHPC water pipe structure are inspected according to relevant standards, and delivery can be performed only after the structural performance, the UHPC strength, the component appearance, the component size and the like are qualified.
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| CN201910903754.0A CN110608317A (en) | 2019-09-24 | 2019-09-24 | UHPC water pipe structure and manufacturing process thereof |
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| CN201910903754.0A CN110608317A (en) | 2019-09-24 | 2019-09-24 | UHPC water pipe structure and manufacturing process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114575438A (en) * | 2022-03-29 | 2022-06-03 | 山东龙泉管道工程股份有限公司 | Reinforced concrete pipeline with ultrahigh-performance concrete faucet and preparation method thereof |
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| CN101354100A (en) * | 2007-07-26 | 2009-01-28 | 天津万联管道工程有限公司 | Steel faucet prestress glass fiber reinforced plastic external guard reinforced concrete pipe |
| CN104908157A (en) * | 2015-04-30 | 2015-09-16 | 华南理工大学 | Super-high performance concrete compound pipeline preparation method |
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| CN114575438A (en) * | 2022-03-29 | 2022-06-03 | 山东龙泉管道工程股份有限公司 | Reinforced concrete pipeline with ultrahigh-performance concrete faucet and preparation method thereof |
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