CN105565712A - Novel green prestressed concrete bridge plate used for roads and municipal bridges - Google Patents
Novel green prestressed concrete bridge plate used for roads and municipal bridges Download PDFInfo
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- CN105565712A CN105565712A CN201410531874.XA CN201410531874A CN105565712A CN 105565712 A CN105565712 A CN 105565712A CN 201410531874 A CN201410531874 A CN 201410531874A CN 105565712 A CN105565712 A CN 105565712A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
A green prestressed concrete bridge plate used for roads and municipal bridges is produced through the following steps: commonly stirring fly ash and ore powder with cement, sands, stones, water, a water reducer and an additive according to a certain ratio until uniformity, pouring the above obtained mixture to a prepared die, carrying out full vibrating molding, carrying out steam curing for 12-24h or carrying out natural environment curing for 36-72h, demolding, curing the demolded concrete, and applying prestress to the concrete when the strength of the concrete reaches 80% of a designed strength. Two industrial wastes comprising the fly ash and the ore powder are added to the above product, so the cement dosage in the invention is about 30% lower than the cement dosage used in common products, and the durability of the product is improved.
Description
Technical field
The present invention relates to the novel green Prestressed Concrete Bridges beam slab of a kind of highway and municipal bridge, especially mix the green Prestressed Concrete Bridges beam slab of flyash and breeze.
Background technology
At present, in the technique of prefabricated bridge beam, the concrete used is usually by cement, sand, stone, water, additive five kinds of starting material uniform stirring according to a certain percentage, then by concrete placement good for mixing in a template, 1-2 hour form removal after concrete final set, then carries out the watering wet curing (or other health-preserving methods of equivalence) of about 28 days, when intensity reaches requirement, to its Shi Hanzhang, and then make Prestressed Concrete Bridges beam slab.The pre-stressed bridge beam slab cement consumption that this method is produced is larger, take production intensity as the pre-stressed bridge beam slab of C50 be example, one side's concrete approximately needs the cement of 500 kilograms of P.O52.5, along with rising steadily of cement price, to bridge beam slab, prefabricated enterprise brings larger cost pressure.
Summary of the invention
In order to overcome the deficiency that in prior art, cement consumption is larger, the invention provides a kind of green concrete mixing flyash and breeze, this concrete being applied in the production of pre-stressed bridge beam slab, cement consumption can being reduced and reach 30%.
The technical solution adopted for the present invention to solve the technical problems is: the green Prestressed Concrete Bridges beam slab of a kind of highway and municipal bridge, by flyash and breeze and cement, sand, stone, water, water reducer and admixture are stirred to evenly jointly, then be poured in ready mould, through fully vibrate shaping after, again through vapor cure 12-24 hour or physical environment maintenance demoulding after 36-72 hour, health in its natural state after the demoulding, treat concrete when reaching 80% of design strength to concrete Shi Hanzhang, finally become green Prestressed Concrete Bridges beam slab finished product.It is characterized in that: in the concrete of use, with the addition of flyash and breeze.
Compared with prior art, the invention has the beneficial effects as follows: green Prestressed Concrete Bridges beam slab decreases 30% than the cement consumption of common Prestressed Concrete Bridges beam slab, and, the product produced under curing condition qualified equally, green Prestressed Concrete Bridges beam slab is better than the weather resistance of common Prestressed Concrete Bridges beam slab.
Accompanying drawing explanation
Fig. 1 is concrete production technological process of the present invention.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
The green Prestressed Concrete Bridges beam slab of a kind of highway and municipal bridge, flyash and breeze and cement, sand, stone, water, water reducer, admixture are stirred to evenly jointly, then be poured in ready mould, through fully vibrate shaping after, again through vapor cure 12-24 hour or physical environment maintenance demoulding after 36-72 hour, health in its natural state after the demoulding, treat concrete when reaching 80% of design strength to concrete Shi Hanzhang, finally become green Prestressed Concrete Bridges beam slab finished product; Flyash and breeze is with the addition of in the concrete used.
103 kilograms, flyash, breeze 39 kilograms, water reducer 7.38 kilograms is mixed in every cubic meter of concrete, it should be noted that, here water reducer is polycarboxylate water-reducer, and its consumption is generally 2.1% of cement consumption, stirs (unit kilogram) by following proportioning:
Cement: sand: large rubble: small crushed stone: flyash: breeze: water: water reducer: admixture;
350：689：674：450：103：39：150：7.38：6.2；
Further, the powder containing quantity of described large small crushed stone is 5.2%, and the mould degree of counting accurately of rubble is 1.5; Described admixture is by water reducer, phenol, polyvinyl alcohol, acetic ester, and more than one in glycerine and polyacrylate material mix; In order to make concrete reach degree of compactness, churning time is 2.5 ~ 3.0min, guarantees to stir unanimously.And necessary water seasoning more than 14 days after its initial set, to ensure the development of concrete strength, the generation of crack preventing, affects its performance; The ordinary water-reducing agent that described water reducer is is representative with wooden calcium.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
The above; be only preferred embodiment of the present invention; not in order to limit the present invention, every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalently replace and improve, within the protection domain that all should be included in technical solution of the present invention.
Claims (3)
1. the green Prestressed Concrete Bridges beam slab of a highway and municipal bridge, flyash and breeze and cement, sand, stone, water, water reducer, admixture are stirred to evenly jointly, then be poured in ready mould, through fully vibrate shaping after, again through vapor cure 12-24 hour or physical environment maintenance demoulding after 36-72 hour, health in its natural state after the demoulding, treat concrete when reaching 80% of design strength to concrete Shi Hanzhang, finally become green Prestressed Concrete Bridges beam slab finished product; It is characterized in that: in the concrete of use, with the addition of flyash and breeze.
2. the green Prestressed Concrete Bridges beam slab of a kind of highway according to claim 1 and municipal bridge, it is characterized in that: in every cubic meter of concrete, mix 103 kilograms, flyash, breeze 39 kilograms, water reducer 7.38 kilograms, it should be noted that, employing water reducer is polycarboxylate water-reducer, its consumption is generally 2.1% of cement consumption, stir (unit kilogram) by following proportioning: cement: sand: large rubble: small crushed stone: flyash: breeze: water: water reducer: admixture=350:689:674:450:103:39:150:7.38:6.2.
3. the green Prestressed Concrete Bridges beam slab of a kind of highway according to claim 1 and 2 and municipal bridge, is characterized in that: the powder containing quantity of described large small crushed stone is 5.2%, and the mould degree of counting accurately of rubble is 1.5; Described admixture is by water reducer, phenol, polyvinyl alcohol, acetic ester, and more than one in glycerine and polyacrylate material mix; In order to make fibrous concrete reach degree of compactness, churning time is 2.5 ~ 3.0min, guarantees to stir unanimously, and necessary water seasoning more than 14 days after its initial set, to ensure the development of concrete strength, the generation of crack preventing, affects its performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531874.XA CN105565712A (en) | 2014-10-11 | 2014-10-11 | Novel green prestressed concrete bridge plate used for roads and municipal bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410531874.XA CN105565712A (en) | 2014-10-11 | 2014-10-11 | Novel green prestressed concrete bridge plate used for roads and municipal bridges |
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| CN105565712A true CN105565712A (en) | 2016-05-11 |
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| CN201410531874.XA Pending CN105565712A (en) | 2014-10-11 | 2014-10-11 | Novel green prestressed concrete bridge plate used for roads and municipal bridges |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948667A (en) * | 2016-05-16 | 2016-09-21 | 句容联众科技开发有限公司 | Concrete for steel works |
| CN106747087A (en) * | 2016-12-07 | 2017-05-31 | 沧州市牧疆南北农牧机械有限公司 | Plant concrete prefabricated plate prescription and preparation method |
| CN108129078A (en) * | 2017-12-21 | 2018-06-08 | 天津新滨工程技术检测有限公司 | A kind of modification spray liniment, lightweight precast concrete plate and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372362Y (en) * | 1997-08-25 | 2000-04-05 | 陈彦平 | Bridge and culvert whose bridge floor can be lifted and fallen |
| CN102296533A (en) * | 2011-06-03 | 2011-12-28 | 浙江天晟梁板有限公司 | Double-doped prestressed concrete bridge beam slab |
| CN102505624A (en) * | 2011-10-17 | 2012-06-20 | 武汉理工大学 | Anti-cracking steel-concrete combined continuous girder bridge of negative moment region |
| CN103936360A (en) * | 2014-03-17 | 2014-07-23 | 乌海市公路工程有限公司 | High-performance concrete and its preparation method |
-
2014
- 2014-10-11 CN CN201410531874.XA patent/CN105565712A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2372362Y (en) * | 1997-08-25 | 2000-04-05 | 陈彦平 | Bridge and culvert whose bridge floor can be lifted and fallen |
| CN102296533A (en) * | 2011-06-03 | 2011-12-28 | 浙江天晟梁板有限公司 | Double-doped prestressed concrete bridge beam slab |
| CN102505624A (en) * | 2011-10-17 | 2012-06-20 | 武汉理工大学 | Anti-cracking steel-concrete combined continuous girder bridge of negative moment region |
| CN103936360A (en) * | 2014-03-17 | 2014-07-23 | 乌海市公路工程有限公司 | High-performance concrete and its preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948667A (en) * | 2016-05-16 | 2016-09-21 | 句容联众科技开发有限公司 | Concrete for steel works |
| CN106747087A (en) * | 2016-12-07 | 2017-05-31 | 沧州市牧疆南北农牧机械有限公司 | Plant concrete prefabricated plate prescription and preparation method |
| CN108129078A (en) * | 2017-12-21 | 2018-06-08 | 天津新滨工程技术检测有限公司 | A kind of modification spray liniment, lightweight precast concrete plate and preparation method |
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Application publication date: 20160511 |
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