CN102808479A - Steel pipe garbage ash concrete component - Google Patents
Steel pipe garbage ash concrete component Download PDFInfo
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- CN102808479A CN102808479A CN2012102747532A CN201210274753A CN102808479A CN 102808479 A CN102808479 A CN 102808479A CN 2012102747532 A CN2012102747532 A CN 2012102747532A CN 201210274753 A CN201210274753 A CN 201210274753A CN 102808479 A CN102808479 A CN 102808479A
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- steel pipe
- concrete
- cinder
- garbage ash
- concrete component
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Abstract
The invention relates to a composite pipe, in particular to a steel pipe garbage ash concrete component in the composite pipe. The steel pipe garbage ash concrete component comprises a steel pipe, wherein the garbage ash concrete is filled in the steel pipe. The steel pipe garbage ash concrete component has the following beneficial effects: the garbage ash is applied to the steel pipe concrete, so on one hand, the steel pipe provides a confining force for the core concrete so that the garbage ash, cement and aggregate can be tightly coupled; on the other hand, in the solid steel pipe concrete, because of the confinement action of the steel pipe on the core concrete, the steel pipe cannot be crazed even if rusted; the volume of the corrosion product become larger, so the steel pipe and the concrete are tightly coupled, and the cooperative work effect is better; and in the steel pipe concrete, because the core concrete is arranged in a sealed environment, the corrosion of the steel pipe caused by chloride ions in the sealed environment is suppressed under the condition of lacking water and oxygen.
Description
Technical field
The present invention relates to clad pipe, relate in particular to a kind of steel pipe cinder concrete component in the clad pipe.
Background technology
For a long time; The pattern of China's economic development belongs to resource-hungry; China is in the economic period of greatly developing in addition; Commercial production will produce increasing solid waste-cullet, scrap rubber, burning city domestic garbage lime-ash, therefore, recycle these solid waste and will have important practical significance for china natural resources saving, environmental protection.
In recent years, along with improving constantly of domestic living standard, domestic waste is also perplexing we everyone gradually; State Statistics Bureau's statistics shows; By the end of 2010, China handled 1.57 hundred million tons of household garbages in annual city, and wherein burning amount is 2.02 thousand ten thousand tons.At present, have increasing garbage burning factory to handle these household garbages both at home and abroad, yet annual there is a large amount of cinders to be not used, and at present mainly handles these cinders through landfill.Therefore, recycle these cinders and have very important practical sense for the recycling of resource.
At present, cinder is mixed in the concrete, help alleviating the pressure of waste incineration power plant, help the environmental protection and the resources conservation of China simultaneously again.Yet the topmost problem that cinder is applied in the cement concrete is exactly the chlorion that contains higher concentration in the cinder; And chlorion has the catalyzed corrosion effect to the corrosion of reinforcing bar; And then make the concrete heavy damage, thereby limited the application of cinder in concrete.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of steel pipe cinder concrete component.
The invention provides a kind of steel pipe cinder concrete component, comprise steel pipe, be filled with the cinder concrete in the said steel pipe.
As further improvement of the present invention, said cinder concrete comprises bottom ash and flying dust.
As further improvement of the present invention, said bottom ash and flying dust mass ratio are 2:1.
As further improvement of the present invention, said steel pipe closed at both ends.
The invention has the beneficial effects as follows: through such scheme, cinder is applied in the concrete filled steel tube, steel pipe is that core concrete provides clamping force on the one hand, makes to combine closely between cinder and cement and the aggregate; On the other hand; In the single solid steel pipe concrete, because steel pipe can not ftracture even steel pipe receives corrosion to the cuff effect of core concrete yet; And because the change of corrosion product volume can make steel pipe and concrete combine closely the collaborative work better effects if more greatly on the contrary; Moreover in concrete filled steel tube, core concrete is in the airtight environment, owing to lack moisture and oxygen, makes under sealed environment chlorion be suppressed the corrosion of steel pipe.
Description of drawings
Fig. 1 is the cross sectional representation of a kind of steel pipe cinder of the present invention concrete component.
The specific embodiment
Below in conjunction with the description of drawings and the specific embodiment the present invention is further specified.
Drawing reference numeral among Fig. 1 is: steel pipe 1; Cinder concrete 2.
As shown in Figure 1, a kind of steel pipe cinder concrete component comprises steel pipe 1, is filled with cinder concrete 2 in the said steel pipe 1.
As shown in Figure 1, said cinder concrete 2 comprises bottom ash and flying dust.
As shown in Figure 1, said bottom ash and flying dust mass ratio are 2:1.
As shown in Figure 1, said steel pipe 1 closed at both ends.
A kind of steel pipe cinder concrete component provided by the invention; Application is extensive, mainly is used as compressed member, as send power transformation member, single or multiple lift industrial premises pillar, high level or superelevation layer civilian construction post etc.; Also can be used as flexural member, like arch rib in highway or the Urban Bridge etc.
Burning city domestic garbage lime-ash (hereinafter to be referred as cinder) in a kind of steel pipe cinder concrete component provided by the invention; It is the effluent of collecting from fire grate and smoke duster, the waste heat boiler etc. of incinerator; Form by bottom ash and flying dust; Bottom ash and flying dust mass ratio are about 2:1, and burning accounts for 30% ~ 35% of rubbish gross mass later, and chloride ion content is about 7.9% in the flying dust.Cinder is simply handled, removed some impurity of the inside, then cinder directly is incorporated in the concrete coarse-fine aggregate in the some or all of replacement common steel tube concrete.Be mixed into mixed ash with bottom ash and flying dust with mass ratio 4:1, keep the sandstone constant rate, adopt 0%, 15%, 30%, 45%, 60% quality such as replacement rate replacement sandstone.Concrete design strength is C30, and water/binder ratio W/C is 0.43, and sand coarse aggregate ratio β s is 33%, and establishing every cubic meter of concrete mixture quality is 2400kg, and then the benchmark match ratio is: cement: water: sand: stone=453:195:578:1174=1:0.43:1.28:2.59.The steel pipe sample dimensions is D * L * t=133mm * 400mm * 4mm; Wherein the bottom is with the cover plate welding that is of a size of 160mm * 160mm * 6mm; After the concrete filled steel tube cast is good; The contraction of 2 ~ 3mm can appear, adopt high-strength mortar to polish to treat it to solidify after, with the cover plate welding that is of a size of 160mm * 160mm.Behind the inner concrete curing 28d, can reach design strength basically.Under the effect of axial compression; 1 pair of inner concrete of outside steel pipe provides the hoop effect of contraction; Make core concrete be in the state of three dimension stress, can improve its compressive strength greatly, simultaneously steel pipe 1 inner fill concrete; Avoid steel pipe generation unstability, thereby improved the whole mechanical property of member.
A kind of steel pipe cinder concrete component provided by the invention is employed in the common steel tube concrete, the composite steel tube concrete component of processing with the coarse-fine aggregate in the some or all of replacement common steel tube of the cinder concrete.
The advantage of a kind of steel pipe cinder concrete component provided by the invention is:
1. overcome in the cinder concrete the bad problem of caking property between cinder and aggregate, simultaneously, because the effect of steel pipe walls, core concrete is in the sealed environment, makes chlorion in the cinder be restricted the corrosion of steel pipe;
When cinder mixes in the concrete filled steel tube; Because steel pipe walls is strengthened the cuff of core concrete; Core concrete is in the three dimension stress state; Make the concrete filled steel tube entire compression bearing capacity and the ability of opposing compressive strain obtain certain enhancing, thereby material property is fully played.Chloride ion content is about 7.9% in the flying dust; Chlorion has catalytic action to the corrosion of reinforcing bar; And then making the concrete heavy damage, general corrosion product volume expansion causes concrete cracking, makes in the exposed externally environment of reinforcing bar; Thereby quickened the corrosion of reinforcing bar more, caused reinforced concrete structure to be destroyed.Different with ordinary reinforced concrete is, the residing environment of concrete filled steel tube inner concrete is different, and short slab need be welded in the steel pipe two ends usually; Inside is in the environment of a sealing, although there are a large amount of chlorions in the cinder, along with the carrying out of internal corrosion reaction; Oxygen and moisture can not get replenishing; Thereby the speed of steel duct corrosion obtains restriction, and simultaneously, inner steel pipe corrosion is expanded for combining between steel pipe and the core concrete having advantageous effect.Through calculating, under air-proof condition, steel pipe was through the corrosion in 10 years; Rate of corrosion is very little, almost can ignore, therefore; In the cinder concrete filled steel tube, under the steel duct sealed environment, the chlorion in the cinder can be ignored to the corrosion of steel pipe basically;
2. the extensive application of cinder can be recycled cinder effectively in concrete filled steel tube, helps energy conservation, preserves the ecological environment, and meets the strategic objective of sustainable development;
3. should invention easy construction, simple to operate, service behaviour is good, can be in actual engineering large-scale application.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. a steel pipe cinder concrete component is characterized in that: comprise steel pipe, be filled with the cinder concrete in the said steel pipe.
2. steel pipe cinder concrete component according to claim 1 is characterized in that: said cinder concrete comprises bottom ash and flying dust.
3. steel pipe cinder concrete component according to claim 2 is characterized in that: said bottom ash and flying dust mass ratio are 2:1.
4. steel pipe cinder concrete component according to claim 1 is characterized in that: said steel pipe closed at both ends.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102747532A CN102808479A (en) | 2012-08-03 | 2012-08-03 | Steel pipe garbage ash concrete component |
| CN2013101071226A CN103161260A (en) | 2012-08-03 | 2013-03-29 | Steel tube waste ash concrete component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102747532A CN102808479A (en) | 2012-08-03 | 2012-08-03 | Steel pipe garbage ash concrete component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102808479A true CN102808479A (en) | 2012-12-05 |
Family
ID=47232334
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102747532A Withdrawn CN102808479A (en) | 2012-08-03 | 2012-08-03 | Steel pipe garbage ash concrete component |
| CN2013101071226A Pending CN103161260A (en) | 2012-08-03 | 2013-03-29 | Steel tube waste ash concrete component |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101071226A Pending CN103161260A (en) | 2012-08-03 | 2013-03-29 | Steel tube waste ash concrete component |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102808479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309292A (en) * | 2021-06-07 | 2021-08-27 | 哈尔滨工业大学 | Variable-section multi-steel-pipe high-strength waste concrete combined column and construction method thereof |
| CN113956012A (en) * | 2021-12-23 | 2022-01-21 | 中铁建设集团有限公司 | Preparation method of all-solid waste steel tube concrete containing waste incineration fly ash |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11280062A (en) * | 1998-03-30 | 1999-10-12 | Taiheiyo Cement Corp | Concrete pile with outer shell steel pile |
| CN201635257U (en) * | 2009-12-23 | 2010-11-17 | 崔正龙 | Member utilizing regeneration aggregate concrete |
| CN101748862B (en) * | 2010-01-06 | 2011-06-15 | 哈尔滨工业大学深圳研究生院 | Hollow steel pipe and concrete column filled with sea sand concrete and making method thereof |
| CN101793055B (en) * | 2010-03-12 | 2011-06-15 | 哈尔滨工业大学深圳研究生院 | Sea-sand concrete member and manufacturing method thereof |
-
2012
- 2012-08-03 CN CN2012102747532A patent/CN102808479A/en not_active Withdrawn
-
2013
- 2013-03-29 CN CN2013101071226A patent/CN103161260A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309292A (en) * | 2021-06-07 | 2021-08-27 | 哈尔滨工业大学 | Variable-section multi-steel-pipe high-strength waste concrete combined column and construction method thereof |
| CN113956012A (en) * | 2021-12-23 | 2022-01-21 | 中铁建设集团有限公司 | Preparation method of all-solid waste steel tube concrete containing waste incineration fly ash |
| CN113956012B (en) * | 2021-12-23 | 2022-05-06 | 中铁建设集团有限公司 | Preparation method of all-solid waste steel tube concrete containing waste incineration fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103161260A (en) | 2013-06-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20121205 |