CN101619783A - Fiber cement mortar prestressed concrete tube - Google Patents

Fiber cement mortar prestressed concrete tube Download PDF

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Publication number
CN101619783A
CN101619783A CN200810053743A CN200810053743A CN101619783A CN 101619783 A CN101619783 A CN 101619783A CN 200810053743 A CN200810053743 A CN 200810053743A CN 200810053743 A CN200810053743 A CN 200810053743A CN 101619783 A CN101619783 A CN 101619783A
Authority
CN
China
Prior art keywords
protective layer
cement mortar
fiber cement
prestressed concrete
fiber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200810053743A
Other languages
Chinese (zh)
Inventor
赵斌
张亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Waterline Pipeline Engineering Co Ltd
Original Assignee
Tianjin Waterline Pipeline Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Waterline Pipeline Engineering Co Ltd filed Critical Tianjin Waterline Pipeline Engineering Co Ltd
Priority to CN200810053743A priority Critical patent/CN101619783A/en
Publication of CN101619783A publication Critical patent/CN101619783A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a fiber cement mortar prestressed concrete tube, which consists of a tube core, prestressed steel wires and a protective layer. The protective layer is fixedly arranged on the outer wall of the tube core, and the prestressed steel wires are wound on the outer wall of the tube core inside the protective layer, wherein the protective layer is a fiber cement mortar protective layer which consists of the following components in portion by weight: 510 to 840 portions of cement, 1,410 to 1,730 portions of sand, 150 to 180 portions of water and 0.2 to 2 portions of fiber. The fiber cement mortar prestressed concrete tube has the advantages of simple process, scientific and reasonable matching design, excellent permeability resistance, crack resistance and corrosion resistance, difficult falling off, and good mechanical performance and wear resistance. The invention provides a fiber cement mortar prestressed concrete tube with high tensile strength and shearing strength.

Description

Fiber cement mortar prestressed concrete tube
Technical field
The invention belongs to the concrete pipe field, especially a kind of fiber cement mortar prestressed concrete tube.
Background technique
Slush is a kind of application structural material more widely, and general solid wall adopts slush to paste mostly, comprises the processing of some floor levelings, tiling.Also often use slush in some fields, prestressed concrete pipe road at present, it is mainly as the protective layer of concrete pipe outer core reinforcement wire, this cement mortar protective course can run into the drying shrinkage problem when using, the drying shrinkage speed of slush is a contrary curve that falls, the initial stage drying shrinkage is rapid, time length can be slowed down gradually, this contraction is irreversible, to change the contraction cause be a kind of reversible process of drying and watering cycle to humidity in addition, when shrinking stress during greater than the tensile strength of mortar, mortar certainly leads to the crack, above-mentioned drying shrinkage phenomenon can cause slush, and there are the following problems: 1. cracking resistance is poor: on the concrete pipe pipeline outer wall reinforcement wire protective layer after the intensity, its surface is easy to generate segmentation crack, in lifting, its protective layer comes off easily in transportation or the installation process, cause secondary to repair, reduce the efficient of installing, increased the maintenance maintenance cost; 2. impervious poor: segmentation crack appears in concrete pipe pipeline outer wall reinforcement wire protective layer directly influences its impermeability, causes the corrosion of pipeline outer wall reinforcement wire, has shortened working life; 3. the slush of existing pipeline outer wall is shorter bigger regional working life in corrosivity; 4. the tension of slush integral body, shearing strength are lower.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of preparation process simple, proportion design is scientific and reasonable, have good impermeability, resistance to cracking, corrosion resistance, and difficult drop-off, mechanical property and durability are better, tension, the fiber cement mortar prestressed concrete tube that shearing strength is high.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of fiber cement mortar prestressed concrete tube; constitute by tube core, reinforcement wire and protective layer; the tube core outer wall installs this protective layer; be wound with reinforcement wire on the tube core outer wall in this protective layer; wherein protective layer is the fiber cement mortar protective layer, and it constitutes component and parts by weight are respectively:
Cement 510-840 part;
Sand 1410-1730 part;
Water 150-180 part;
Fiber 0.2-2 part.
And described fiber is Steel Fibre or polypropylene fiber.
And, coaxial setting-in Framework Of Steel Reinforcement or steel cylinder in the described tube core.
And, a coaxial respectively steel socket and the steel bellmouth of installing in described tube core two ends.
Advantage of the present invention and beneficial effect are:
1. after the protective layer of this fiber cement mortar prestressed concrete tube adds fiber, reduce the incidence rate of microscopic crack, prevented that reinforcement wire is corroded, improved the working life of whole pipe, reduced maintenance cost.
2. the fiber in this fiber cement mortar prestressed concrete tube is dispersed into self-existent one by one monofilament in protective layer; these monofilament are evenly distributed among the mortar block; be three-dimensional disorderly to distribution; gather materials in the plastic state support; prevent segregation; the anti-stress that makes mortar bear drying shrinkage and produce; can effectively reduce the plastic shrinkage degree of mortar; can reduce mortar interior detail microcrack rate; thereby also reduced because of micro-cracks causes stress and concentrated the incidence rate of destroying mortar cover; anti-corrosive properties and mechanical property, the especially resistance to tension of protective layer have been improved.
3. the protective layer of this fiber cement mortar prestressed concrete tube is to have added fiber to be made on the basis of existing cement mortar protective course, and preparation process is simple, and is easy to use, and cost is lower.
4. preparation process of the present invention is simple, proportion design is scientific and reasonable, has good impermeability, resistance to cracking, corrosion resistance, and difficult drop-off, mechanical property and durability are better, are a kind of tensions, fiber cement mortar prestressed concrete tube that shearing strength is high.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that Figure 1A-A is to sectional view;
Fig. 3 is that Figure 1B-B is to sectional view.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
The fiber of present embodiment is for buying Steel Fibre or the polypropylene fiber that obtains from market.
A kind of fiber cement mortar prestressed concrete tube; constitute by tube core 2, reinforcement wire 4 and protective layer 5; can coaxial setting-in Framework Of Steel Reinforcement or steel cylinder in the tube core; Framework Of Steel Reinforcement can be for being made up of circumferential reinforcement and longitudinal steel bar; the present embodiment accompanying drawing is the schematic representation of setting-in steel cylinder 3; coaxial respectively steel socket 1 and the steel bellmouth 6 of installing in tube core two ends; the tube core outer wall is fixed with protective layer; be wound with reinforcement wire on the tube core outer wall in protective layer; wherein this protective layer is the fiber cement mortar protective layer, and the component and the parts by weight thereof of its formation are respectively:
Cement 510-840 part;
Sand 1410-1730 part;
Water 150-180 part;
Fiber 0.2-2 part.
Embodiment 1
Aforesaid fiber cement mortar prestressed concrete tube, component and parts by weight thereof that its protective layer constitutes are respectively:
Cement 510kg;
Sand 1410kg;
Water 150kg;
Steel Fibre 0.2kg.
Embodiment 2
Aforesaid fiber cement mortar prestressed concrete tube, component and parts by weight thereof that its protective layer constitutes are respectively:
Cement 840kg;
Sand 1730kg;
Water 180kg;
Polypropylene fiber 2kg.
Embodiment 3
Aforesaid fiber cement mortar prestressed concrete tube, component and parts by weight thereof that its protective layer constitutes are respectively:
Cement 675kg;
Sand 1570kg;
Water 165kg;
Steel Fibre 1.1kg.
Above-mentioned fiber cement mortar only needs in working process various component raw material, puts into even stirring of mixing plant according to a certain ratio and gets final product.

Claims (4)

1. fiber cement mortar prestressed concrete tube; constitute by tube core, reinforcement wire and protective layer; the tube core outer wall installs this protective layer; be wound with reinforcement wire on the tube core outer wall in this protective layer; it is characterized in that: protective layer is the fiber cement mortar protective layer, and it constitutes component and parts by weight are respectively:
Cement 510-840 part;
Sand 1410-1730 part;
Water 150-180 part;
Fiber 0.2-2 part.
2. fiber cement mortar prestressed concrete tube according to claim 1 is characterized in that: described fiber is Steel Fibre or polypropylene fiber.
3. fiber cement mortar prestressed concrete tube according to claim 1 is characterized in that: coaxial setting-in Framework Of Steel Reinforcement or steel cylinder in the described tube core.
4. fiber cement mortar prestressed concrete tube according to claim 1 is characterized in that: a coaxial respectively steel socket and the steel bellmouth of installing in described tube core two ends.
CN200810053743A 2008-07-03 2008-07-03 Fiber cement mortar prestressed concrete tube Pending CN101619783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810053743A CN101619783A (en) 2008-07-03 2008-07-03 Fiber cement mortar prestressed concrete tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810053743A CN101619783A (en) 2008-07-03 2008-07-03 Fiber cement mortar prestressed concrete tube

Publications (1)

Publication Number Publication Date
CN101619783A true CN101619783A (en) 2010-01-06

Family

ID=41513152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810053743A Pending CN101619783A (en) 2008-07-03 2008-07-03 Fiber cement mortar prestressed concrete tube

Country Status (1)

Country Link
CN (1) CN101619783A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871237A (en) * 2010-06-22 2010-10-27 林淑芬 Exterior wall insulated structure and building method thereof
CN103234085A (en) * 2013-03-01 2013-08-07 浙江巨龙管业股份有限公司 Prestressed concrete pipe mixed with polypropylene fibres
CN104594546A (en) * 2015-02-11 2015-05-06 王万福 Pipe-like fiber cement brick, wall and manufacturing method of pipe-like fiber cement brick

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871237A (en) * 2010-06-22 2010-10-27 林淑芬 Exterior wall insulated structure and building method thereof
CN103234085A (en) * 2013-03-01 2013-08-07 浙江巨龙管业股份有限公司 Prestressed concrete pipe mixed with polypropylene fibres
CN104594546A (en) * 2015-02-11 2015-05-06 王万福 Pipe-like fiber cement brick, wall and manufacturing method of pipe-like fiber cement brick

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Open date: 20100106