CN102358687A - Method for preparing recycled concrete by using sucrose water reducer and recycled concrete - Google Patents
Method for preparing recycled concrete by using sucrose water reducer and recycled concrete Download PDFInfo
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- CN102358687A CN102358687A CN2011102236509A CN201110223650A CN102358687A CN 102358687 A CN102358687 A CN 102358687A CN 2011102236509 A CN2011102236509 A CN 2011102236509A CN 201110223650 A CN201110223650 A CN 201110223650A CN 102358687 A CN102358687 A CN 102358687A
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Abstract
The invention relates to a method for preparing recycled concrete by using a sucrose water reducer and recycled concrete. By adding the sucrose water reducer, the mechanical properties of the recycled concrete are greatly improved; meanwhile, calcium saccharate serves as waste residue in the sugar industry, and the environmental pollution is lightened. By improving the properties of the recycled concrete, the recycled concrete is more widely applied.
Description
Technical field
The present invention relates to a kind of method and regeneration concrete for preparing regeneration concrete, relate in particular to a kind of method and regeneration concrete that utilizes the sucrose water reducer to prepare regeneration concrete.
Background technology
The quantity of the waste and old concrete of discarded concrete that the annual in the world waste and old concrete of removing, new building produce and concrete factory, factory for prefabrication is surprising, and traditional treatment process mainly is to transport countryside air storage or landfill to.Huge processing costs that this method produces and the environmental problem that causes thus are very outstanding.Contain a large amount of sandstone aggregates in the discarded concrete,, produce microfracture because regeneration aggregate inside in shattering process can damage.In its outside owing to wrapped up old grout; Make its water-intake rate higher than general aggregate; Interfacial transition zone is more complicated than normal concrete, and then water requirement is big in the process that causes preparing, and intensity is low, contraction is big; Therefore, the mechanical property of prior art regeneration concrete that this is improved is poor more than normal concrete.
Summary of the invention
The technical problem that the present invention solves is: a kind of method and regeneration concrete that utilizes the sucrose water reducer to prepare regeneration concrete is provided, overcomes the technical problem of the poor mechanical property of prior art regeneration concrete.
Technical scheme of the present invention is: a kind of method of utilizing the sucrose water reducer to prepare regeneration concrete is provided, comprises the steps:
Mixed sand and cement:, an amount of cement and husky the stirring are mixed according to the requirement of different concrete class proportionings;
The mixture of preparation water and sucrose water reducer: the suitable amount of sucrose water reducer added to stir in the entry mix;
Form cement mortar: stir the mixed cement mortar that forms with husky mixture with adding cement in sucrose water reducer and water and the mixing solutions;
Cement mortar and regeneration aggregate is mixed: that cement mortar and regeneration aggregate are mixed the formation regeneration concrete.
Further technical scheme of the present invention is: in the step of mixed sand and cement, an amount of cement was stirred mixed 20 seconds to 40 seconds with husky.
Further technical scheme of the present invention is: in forming the cement mortar step, stirred mixed 50 seconds to 70 seconds with husky mixture adding cement in sucrose water reducer and water and the mixing solutions.
Further technical scheme of the present invention is: in cement mortar and the mixed step of regeneration aggregate, cement mortar and regeneration aggregate were mixed 150 seconds to 200 seconds.
Further technical scheme of the present invention is: in cement mortar and the mixed step of regeneration aggregate, earlier cement mortar is wrapped regeneration aggregate, and again that cement mortar and regeneration aggregate is mixed.
Further technical scheme of the present invention is: the particle size range of said regeneration aggregate is 0.5 millimeter to 40 millimeters.
Further technical scheme of the present invention is: said sucrose water reducer is for generating unslaked lime and sucrose reaction.
Technical scheme of the present invention is: make up a kind of regeneration concrete; Comprise an amount of regeneration aggregate, cement, sand, water, sucrose water reducer; According to the requirement of different concrete class proportionings, with an amount of cement with husky stir mixed, with the suitable amount of sucrose water reducer add stir in the entry mixed; Stir the mixed cement mortar that forms with adding cement in sucrose water reducer and water and the mixing solutions with husky mixture then, again cement mortar and regeneration aggregate are mixed the formation regeneration concrete.
Technique effect of the present invention is: the present invention utilizes the sucrose water reducer to prepare the method and the regeneration concrete of regeneration concrete; Through adding the sucrose water reducer; Improve the mechanical property of regeneration concrete greatly, calcium saccharate reduces that as the waste residue of sugar-refining industry environment is polluted destruction simultaneously.Through improvement, make the utilization of regeneration concrete more extensive to the regeneration concrete performance.
Description of drawings
Fig. 1 is a schema of the present invention.
Fig. 2 is the concrete flucculation structure synoptic diagram of the present invention.
Fig. 3 is the effect synoptic diagram of sucrose water reducer of the present invention.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further specified.
As shown in Figure 1, embodiment of the present invention is: a kind of method of utilizing the sucrose water reducer to prepare regeneration concrete is provided, comprises the steps:
Step 100: mixed sand and cement that is: according to the requirement of different concrete class proportionings, mix an amount of cement and husky the stirring.In the practical implementation process, an amount of cement was stirred mixed 20 seconds to 40 seconds with husky, generally, an amount of cement was stirred mixed 30 seconds with husky.
Step 200: the mixture of preparation water and sucrose water reducer that is: adds the suitable amount of sucrose water reducer to stir in the entry and mixes.
Step 300: form cement mortar, that is: stir the mixed cement mortar that forms with adding cement in sucrose water reducer and water and the mixing solutions with husky mixture.In the practical implementation process, stirred mixed 50 seconds to 70 seconds with husky mixture, stirred mixed 60 seconds with husky mixture adding cement in sucrose water reducer and water and the mixing solutions with adding cement in sucrose water reducer and water and the mixing solutions.
Step 400: cement mortar and regeneration aggregate is mixed, that is: cement mortar and regeneration aggregate are mixed the formation regeneration concrete, the particle size range of said regeneration aggregate is 0.5 millimeter to 40 millimeters.Said regeneration aggregate is meant the broken processing of waste concrete, cleans classification then, according to certain gradation composition.In the specific embodiment, earlier cement mortar is wrapped regeneration aggregate, again that cement mortar and regeneration aggregate is mixed, cement mortar and regeneration aggregate were stirred mixed 150 seconds to 200 seconds, cement mortar and regeneration aggregate were stirred mixed 180 seconds.After stirring finishes, measure the concrete slump.If meet the requirements; The die trial of then packing into; Before cast, spread upon the die trial inwall to releasing agent equably, note in the casting process vibrating in case the die trial bottom produces bubble, insert for several times along die wall with putty knife with rod iron with brush; Be placed on vibration and floating on the shaking table, put into the standard curing room maintenance at last.
Practical implementation process of the present invention is following: as shown in Figure 2, cement granules is in hydration process, and the adsorption between hydrated product and cement can form flucculation structure.The major ingredient of sucrose water reducer is a calcium saccharate; Calcium saccharate generates by add the molasses reaction with unslaked lime; Especially generate with last remaining waste residue molasses reaction in the unslaked lime adding sugar industry production process; Utilize last remaining waste residue molasses in the sugar industry production process, promptly practice thrift cost, reduce again and pollute.Its mechanism of action is: the molasses dissolved has the carboxylate radical of hydroxyl and the multiple hydroxycarboxylic acid calcium salt of calcium ion bonded that unslaked lime dissolving back generates.Behind the cement slurry that the calcium saccharate adding is newly mixed; The carboxylate anion that has hydroxyl comes out with regard to ionization, and the hydrophobic group oriented adsorption of its end is at cement particle surface, and it still is a kind of tensio-active agent simultaneously; Reduce the surface energy of cement granules, reduced the viscosifying power of cement granules.Cement granules makes the disintegration of flocs unit because having identical charge generation electrostatic repulsion, and prevents the formation of cement granules flocs unit, just can the water that wrap up in the flucculation structure be discharged, and is as shown in Figure 3.Therefore guaranteeing to reduce the consumption of water under the mobile constant condition of concrete mix, also just correspondingly reduced capillary water and planar water, cement stone volumetric shrinkage is little, and interfacial transition zone improves, and strength at break has also just improved.
Embodiment of the present invention is: make up a kind of regeneration concrete; Comprise an amount of regeneration aggregate, cement, sand, water, sucrose water reducer; Requirement according to different concrete class proportionings; An amount of cement and husky the stirring are mixed; The suitable amount of sucrose water reducer added in the entry stir mixedly, stir with husky mixture and mix the formation cement mortar adding cement in sucrose water reducer and water and the mixing solutions then, again cement mortar and regeneration aggregate are mixed the formation regeneration concrete.
Technique effect of the present invention is: the present invention utilizes the sucrose water reducer to prepare the method and the regeneration concrete of regeneration concrete; Through adding the sucrose water reducer; Improve the mechanical property of regeneration concrete greatly, calcium saccharate reduces that as the waste residue of sugar-refining industry environment is polluted destruction simultaneously.Through improvement, make the utilization of regeneration concrete more extensive to the regeneration concrete performance.
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 (8)
1. a method of utilizing the sucrose water reducer to prepare regeneration concrete comprises the steps:
Mixed sand and cement:, an amount of cement and husky the stirring are mixed according to the requirement of different concrete class proportionings;
The mixture of preparation water and sucrose water reducer: the suitable amount of sucrose water reducer added to stir in the entry mix;
Form cement mortar: stir the mixed cement mortar that forms with husky mixture with adding cement in sucrose water reducer and water and the mixing solutions;
Cement mortar and regeneration aggregate is mixed: that cement mortar and regeneration aggregate are mixed the formation regeneration concrete.
2. according to the said method of utilizing the sucrose water reducer to prepare regeneration concrete of claim 1, it is characterized in that, in the step of mixed sand and cement, an amount of cement was stirred mixed 20 seconds to 40 seconds with husky.
3. according to the said method of utilizing the sucrose water reducer to prepare regeneration concrete of claim 1, it is characterized in that, in forming the cement mortar step, stirred mixed 50 seconds to 70 seconds with husky mixture adding cement in sucrose water reducer and water and the mixing solutions.
4. according to the said method of utilizing the sucrose water reducer to prepare regeneration concrete of claim 1, it is characterized in that, in cement mortar and the mixed step of regeneration aggregate, cement mortar and regeneration aggregate were mixed 150 seconds to 200 seconds.
5. according to claim 1 or the 4 said methods of utilizing the sucrose water reducer to prepare regeneration concrete, it is characterized in that, in cement mortar and the mixed step of regeneration aggregate, earlier cement mortar is wrapped regeneration aggregate, again that cement mortar and regeneration aggregate is mixed.
6. according to the said method of utilizing the sucrose water reducer to prepare regeneration concrete of claim 1, it is characterized in that the particle size range of said regeneration aggregate is 0.5 millimeter to 40 millimeters.
7. according to the said method of utilizing the sucrose water reducer to prepare regeneration concrete of claim 1, it is characterized in that said sucrose water reducer is that unslaked lime and sucrose reaction are generated.
8. regeneration concrete; Comprise an amount of regeneration aggregate, cement, sand, water, sucrose water reducer; According to the requirement of different concrete class proportionings, with an amount of cement with husky stir mixed, with the suitable amount of sucrose water reducer add stir in the entry mixed; Stir the mixed cement mortar that forms with adding cement in sucrose water reducer and water and the mixing solutions with husky mixture then, again cement mortar and regeneration aggregate are mixed the formation regeneration concrete.
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| CN2011102236509A CN102358687A (en) | 2011-08-05 | 2011-08-05 | Method for preparing recycled concrete by using sucrose water reducer and recycled concrete |
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| CN2011102236509A CN102358687A (en) | 2011-08-05 | 2011-08-05 | Method for preparing recycled concrete by using sucrose water reducer and recycled concrete |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242332A (en) * | 2016-07-21 | 2016-12-21 | 山东宏艺科技股份有限公司 | A kind of masonry cement |
| CN110714382A (en) * | 2019-10-16 | 2020-01-21 | 北京城建华晟交通建设有限公司 | Cement stabilized macadam mixture and road base construction method in high-temperature season |
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| CN1389422A (en) * | 2002-06-26 | 2003-01-08 | 喻忠元 | High-efficiency concrete admixture |
| CN101139193A (en) * | 2007-08-21 | 2008-03-12 | 云南华威废弃物资源化有限公司 | Regenerative concrete composite material and method for making same |
| CN101570426A (en) * | 2009-04-21 | 2009-11-04 | 同济大学 | Geo-polymer recycled concrete and preparation method thereof |
| CN101708980A (en) * | 2009-12-14 | 2010-05-19 | 浙江理工大学 | Recycled concrete and use thereof |
| CN101767960A (en) * | 2008-12-29 | 2010-07-07 | 沈阳建筑大学 | Recycled concrete coarse aggregate modified processing method |
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2011
- 2011-08-05 CN CN2011102236509A patent/CN102358687A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389422A (en) * | 2002-06-26 | 2003-01-08 | 喻忠元 | High-efficiency concrete admixture |
| CN101139193A (en) * | 2007-08-21 | 2008-03-12 | 云南华威废弃物资源化有限公司 | Regenerative concrete composite material and method for making same |
| CN101767960A (en) * | 2008-12-29 | 2010-07-07 | 沈阳建筑大学 | Recycled concrete coarse aggregate modified processing method |
| CN101570426A (en) * | 2009-04-21 | 2009-11-04 | 同济大学 | Geo-polymer recycled concrete and preparation method thereof |
| CN101708980A (en) * | 2009-12-14 | 2010-05-19 | 浙江理工大学 | Recycled concrete and use thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242332A (en) * | 2016-07-21 | 2016-12-21 | 山东宏艺科技股份有限公司 | A kind of masonry cement |
| CN110714382A (en) * | 2019-10-16 | 2020-01-21 | 北京城建华晟交通建设有限公司 | Cement stabilized macadam mixture and road base construction method in high-temperature season |
| CN110714382B (en) * | 2019-10-16 | 2021-11-23 | 北京城建华晟交通建设有限公司 | Road base construction method for cement stabilized macadam mixture in high-temperature season |
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Application publication date: 20120222 |