CN210890421U - UHPC water pipe structure - Google Patents

Abstract

The utility model discloses a UHPC water pipe structure, UHPC water pipe structure include UHPC concrete pipe core, and the outer wall of one end of UHPC concrete pipe core is provided with water pipe socket, and the other end internal face of UHPC concrete pipe core is provided with the water pipe bellmouth, and water pipe socket is used for pegging graft with the water pipe bellmouth of another section UHPC water pipe structure. The UHPC water pipe structure of the utility model cancels the steel bell and spigot, has no reinforcing bar, adopts the one-time vibration-free forming method, simplifies the manufacturing process, greatly reduces the manufacturing cost and improves the production efficiency; compare ordinary concrete water pipe, the utility model discloses the water pipe wall thickness reduces more than 50%, and weight reduction reduces more than 50%, and the reinforcing bar consumption reduces more than 50%, adopts UHPC to pour, has effectively solved pipeline corrosion and seepage problem, has strengthened the durability of water pipe, and the practicality is strong.

Description

UHPC water pipe structure

Technical Field

The utility model relates to a building material field especially relates to a UHPC water pipe structure.

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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a UHPC water pipe structure that intensity is high, toughness is good, and impermeability, durability, corrosion resistance are excellent.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a UHPC water pipe structure, including UHPC concrete pipe core, the outer wall of one end of UHPC concrete pipe core is provided with the water pipe socket, the other end internal face of UHPC concrete pipe core is provided with the water pipe bellmouth, the water pipe socket be used for with another section UHPC water pipe structure the water pipe bellmouth is pegged graft.

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.

The utility model discloses for prior art gain following technological effect:

the utility model provides a UHPC water pipe structure has cancelled the steel bell and spigot, there is not the arrangement of reinforcement, adopt once exempt from the shaping method that shakes, the preparation technology is simplified, have higher price/performance ratio, make full use of UHPC intensity high, toughness is good and impermeability, durability, characteristics that corrosion resistance is excellent, compare ordinary concrete water pipe, water pipe wall thickness reduces more than 50%, weight reduction is more than 50%, the reinforcing bar consumption reduces more than 50%, adopt UHPC to pour, pipeline corrosion and seepage problem have effectively been solved, the durability of water pipe has been strengthened, therefore, the clothes hanger is strong in practicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

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 the manufacturing process of the UHPC water pipe structure of 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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a UHPC water pipe structure that intensity is high, and toughness is good, and impermeability, durability, corrosion resistance are excellent, and the shaping mode is simplified.

Based on this, the utility model provides a UHPC water pipe structure, including UHPC concrete pipe core, the outer wall of one end of UHPC concrete pipe core is provided with water pipe socket, and the other end internal face of UHPC concrete pipe core is provided with the water pipe bellmouth, and water pipe socket is used for pegging graft with the water pipe bellmouth of another section UHPC water pipe structure.

The utility model provides a UHPC water pipe structure has cancelled the steel bell and spigot, there is not the arrangement of reinforcement, adopt once exempt from the shaping method that shakes, the preparation technology is simplified, have higher price/performance ratio, make full use of UHPC intensity high, toughness is good and impermeability, durability, characteristics that corrosion resistance is excellent, compare ordinary concrete water pipe, water pipe wall thickness reduces more than 50%, weight reduction is more than 50%, the reinforcing bar consumption reduces more than 50%, adopt UHPC to pour, pipeline corrosion and seepage problem have effectively been solved, the durability of water pipe has been strengthened, therefore, the clothes hanger is strong in practicability.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

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 utility model provides a UHPC water pipe structure has higher price/performance ratio, make full use of UHPC intensity height, toughness good and impermeability, durability, corrosion resistance excellent characteristics, compare ordinary concrete water pipe, the water pipe wall thickness reduces more than 50%, weight reduction more than 50%, the reinforcing bar consumption reduces more than 50%, adopts UHPC to pour, has effectively solved pipeline corrosion and seepage problem, has strengthened the durability of water pipe, and the practicality is strong.

Simultaneously the utility model provides a manufacturing process of UHPC water pipe structure has cancelled the steel bell and spigot, does not have the arrangement of reinforcement, adopts the forming method of exempting from to shake once, and manufacturing process simplifies, and cost of manufacture greatly reduced, production efficiency improves.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics 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 utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims (4)

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 segment of UHPC water pipe structure; the water pipe faucet, the water pipe bell mouth and the UHPC concrete pipe core are integrally formed, a steel faucet is omitted, and no reinforcing bars are arranged.

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.

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