CN102392485B - Manufacturing method of plastic concrete inspection well - Google Patents
Manufacturing method of plastic concrete inspection well Download PDFInfo
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- CN102392485B CN102392485B CN 201110358785 CN201110358785A CN102392485B CN 102392485 B CN102392485 B CN 102392485B CN 201110358785 CN201110358785 CN 201110358785 CN 201110358785 A CN201110358785 A CN 201110358785A CN 102392485 B CN102392485 B CN 102392485B
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Abstract
The invention discloses a manufacturing method of a plastic concrete inspection well, which comprises the following steps of: heating a plastic, extruding the plastic into a belt or a strip through a plastic extruding machine, using the obtained belt or the strip and a small amount of steel bars for weaving to form a cage-shaped framework of a formed part, placing into a cavity formed by an inner mold and an outer mold, casting concrete and adding trace plastic fibers into the concrete. By adopting the manufacturing method, the inspection wells in different specifications can be produced, centralized forming can be performed in a factory, the inspection well can be divided into sections for modular manufacturing, and then field assembly is performed, thereby overcoming inconvenience and cumbersome property caused by field construction; and simultaneously, the product is corrosion-resistant and reliable in quality.
Description
Technical field
The present invention relates generally to a kind of composite product, particularly a kind ofly make the manhole that composite material that skeleton and concrete form is made by plastics.
Technical background
Draining, blowdown manhole that existing urban construction is used are generally used brick manhole, concrete inspection well and plastic inspection well.Brick manhole can be constructed flexibly, and adapting to different places is conventional practice.Because its intensity is low, voltage endurance capability is poor, and fragile, antiseepage ability, service time are short, are substituted by other.And to the draining in the municipal engineering, blow-off pipe, generally more greatly, darker, brick well difficulty meet the needs of.And the advantage of plastic inspection well advantage such as to be corrosion-resistant, acid and alkali-resistance, in light weight, long service life, easy construction, discharging fast, but various manholes change with the landform landforms, the shape of manhole, change in size is big, producing exploitation is difficult to adapt to, the above large-scale well of one meter in diameter particularly, because the cost problem, may injection mo(u)lding.And the plastic inspection well relative intensity is low, and the pressure of pit shaft and well seat resisting longitudinal aspect is relatively poor, is difficult to take the weight carry, thereby generally only is used for the residential quarter, and size is also little, and general diameter is below 700-800mm.And in municipal engineering, manhole diameter (or size) is bigger, all is to continue to use concrete inspection well.Concrete inspection well intensity height, service time is long, voltage endurance capability is strong.But long construction period, acid and alkali-resistance ability, shock resistance are not as good as moulding well, because it has higher-strength, it is also simpler to construct, and still uses comparatively general.
But the steel concrete manhole, circular well no matter, rectangular well, flat well, drop well, to larger-size general selection cast-in-site, productivity ratio is low, is difficult to adapt to the needs of rapid construction.And reinforcing bar is not corrosion-resistant, and cost is uneconomical, at this special environment of sewer, uses also improper.
Summary of the invention
The object of the present invention is to provide a kind ofly can overcome the known technology shortcoming, realize fast, centralized production, production plantization, modularization, the preparation method of economic, stay-in-grade a kind of plastic concrete manhole.
For achieving the above object, the solution of the present invention is: plastics heating is extruded into band, bar by extruding machine, is woven into the cage type framework of preformed member with band, bar and a small amount of reinforcing bar of gained, put into the cavity that is formed by outer mold, add the micro plastics fiber in the casting concrete, concrete.
Adopt such scheme, the manhole of various different sizes can be concentrated moulding in factory, the manhole segmentation module is made, on-the-spot assembling, thus overcome inconvenience that site operation brings and loaded down with trivial details, these goods are corrosion-resistant simultaneously, and reliable in quality has realized purpose of the present invention.
Be described in more detail below by the scheme of embodiment.
The specific embodiment
Utilize plastics such as polyethylene or polypropylene etc., be easy to moulding and have the characteristics of certain intensity, polyethylene or acrylic resin are added glass fiber, coupling agent, heating is extruded the different shape that needs earlier and is comprised the cross section squarely, rhombus, circular, the billot of oval and special-shaped different size, thickness does not wait, the various band material that width is different, as forming wide 20mm, the band of thick 2-5mm, billot are the 5-10mm diameter, then according to the requirement of concrete inspection well, with the strip after the moulding, the crisscross cage shape that is woven into of banded plastic products, it is circular forming the cross section, square, fan-shaped pit shaft, size such as circular well 6-8 rice are dark, about 1 meter of diameter, the mode of braiding is exactly vertical, traversed by is miscoded and is made into type, and each flowing water arm also can be reserved or be compiled out according to size.When the woven plastics cylinder mould, according to stress, vertically choose the billot that adapts, horizontal, oblique use band material during the braiding of cage type framework, leave the hole of certain size size, is not less than 50mm as forming the circular port diameter, is beneficial to concrete entering.During the braiding of cage type framework, pit shaft well seat is connected as a single entity, and also can be divided into module and weave into, and has nothing in common with each other according to the borehole size size, can weave the intranet and extranet cage and form multilayer.Pit shaft, well seat all-in-one-piece before the concrete cast with its combination, and add a small amount of reinforcing bar again, from the pocket of bottom, as supporting, reinforcing bar is not for strengthening concrete strength, only providing transportation, the rigidity when installing to enroll in the cage only as the support of plastic skeleton herein.After all preparations are finished, namely enter concrete cast program.What note is in concrete mixing, the plastic optical fibre of adding trace that should be suitable, as polypropylene fibre 0.4-0.9%, silica flour 7-8%, additive 10%, other cement, river sand, stone are constant, after above-mentioned raw materials is done in proportion and is mixed, add an amount of water again, stir, cast, tamping demoulding maintenance.Owing to added the intensity that micro-plastic optical fibre has increased manhole, improved it and impacted cracking behavior, impervious, corrosion resistance and frost resistance and measuring body ability, and had durability and toughness preferably.Use polyethylene fibre, then add and contain the surface conditioning agent alkyls so that concrete is strengthened.
In this mode, concrete mix does not change concrete traditional material composition, does not increase extra production equipment yet, and the program that just adds fiber in mix is noted getting final product, and operation is simple, must not train especially.
With this kind mode, various manhole, can in concrete plant area, concentrate moulding, the making of manhole segmentation module is simplified on-the-spot assembling, convenient construction.
Claims (5)
1. the preparation method of a plastic concrete manhole, it is characterized in that: the plastics heating is extruded into band, bar by extruding machine, be woven into the cage type framework of preformed member with band, bar and a small amount of reinforcing bar of gained, put into the cavity that is formed by outer mold, add the micro plastics fiber in the casting concrete, concrete.
2. the preparation method of a kind of plastic concrete manhole according to claim 1, it is characterized in that: polyethylene or acrylic resin add glass fiber, coupling agent, add the different shape of hot-extrudable needs, the billot of different size, and width, the different various band material of thickness, the cross sectional shape of billot can be square, rhombus, circle, ellipse and special-shaped.
3. the preparation method of a kind of plastic concrete manhole according to claim 1 is characterized in that: with the strip after the moulding, the crisscross cage type framework that is woven into of banded plastic products, forming the cross section is circular, square or fan-shaped pit shaft.
4. according to the preparation method of claim 1 or 3 described a kind of plastic concrete manholes, it is characterized in that: cage type framework when braiding, be connected as a single entity or be divided into module with pit shaft well seat and weave into, according to the borehole size size, braiding intranet and extranet cage forms multilayer.
5. the preparation method of a kind of plastic concrete manhole according to claim 1, it is characterized in that: add polypropylene fibre 0.4-0.9% in the concrete mixing, silica flour 7-8%, additive 10%, other cement, river sand, stone are constant, and above-mentioned raw materials adds an amount of water after doing in proportion and mixing again, stir cast, tamping demoulding maintenance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110358785 CN102392485B (en) | 2011-11-14 | 2011-11-14 | Manufacturing method of plastic concrete inspection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110358785 CN102392485B (en) | 2011-11-14 | 2011-11-14 | Manufacturing method of plastic concrete inspection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392485A CN102392485A (en) | 2012-03-28 |
| CN102392485B true CN102392485B (en) | 2013-09-25 |
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| CN 201110358785 Active CN102392485B (en) | 2011-11-14 | 2011-11-14 | Manufacturing method of plastic concrete inspection well |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948458A (en) * | 2017-05-19 | 2017-07-14 | 中国水利水电第四工程局有限公司 | A kind of drainage management construction method |
| CN110387936A (en) * | 2018-04-20 | 2019-10-29 | 黄种玉 | The preparation method of stiffener and reinforced tube |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111144C (en) * | 1999-08-18 | 2003-06-11 | 刘国祥 | Drain pipe of mixed-fiber reinforced concrete |
| CN2509250Y (en) * | 2001-09-20 | 2002-09-04 | 厦门千秋业水泥制品有限公司 | Integral one-time forming reinforced concrete manhole with climbing ladder |
| JP2008088715A (en) * | 2006-10-03 | 2008-04-17 | Ebata Kk | Concrete structure reconstructing method, concrete structure producing method, and corrosion resistant member for use in the methods |
| CN101430029B (en) * | 2008-12-19 | 2010-10-06 | 天津泰邦管材有限公司 | Composite steel pipe with plastic tape winded externally and plastic coated internally, and its processing method |
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| CN102392485A (en) | 2012-03-28 |
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Inventor after: Li Xinghu Inventor after: Huang Shengli Inventor after: Wang Yong Inventor before: Li Xinghu Inventor before: Huang Shengli |
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Free format text: CORRECT: INVENTOR; FROM: LI XINGHU HUANG SHENGLI TO: LI XINGHU HUANG SHENGLI WANG YONG |
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