CN103755252A - Novel concrete and preparation method thereof - Google Patents
Novel concrete and preparation method thereof Download PDFInfo
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- CN103755252A CN103755252A CN201310725666.9A CN201310725666A CN103755252A CN 103755252 A CN103755252 A CN 103755252A CN 201310725666 A CN201310725666 A CN 201310725666A CN 103755252 A CN103755252 A CN 103755252A
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- polystyrene
- granules
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- cement
- new concrete
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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
Abstract
The invention provides novel concrete. The novel concrete comprises a water reducing agent, an exciting agent, water, coal ash and a gel material, wherein the gel material comprises cement, mineral powder and the exciting agent. The concrete further comprises polystyrene granules and a modifier. According to the novel concrete, lightweight aggregates added with the polystyrene granules are used for replacing rough aggregates including stones and the like in a traditional concrete building block so that the self weight is reduced and the performance of keeping heat and saving energy is improved; the defect that the hydrophobicity of the added polystyrene granules causes the small binding power between gel material slurry and the interface for adding the polystyrene granules is solved.
Description
Technical field
The present invention relates to a kind of new concrete, relate in particular to a kind of EPS concrete and preparation method.
Background technology
For adapting to extensive building industrialization, modern requirement, construction material, just gradually to lightweight, high-strength, multi-functional future development, has progressively entered the epoch of macromolecular material.Polystyrene foam (EPS) is a kind of nonpolar lightweight hydrophobic material, this super-light aggregate is added in cement concrete with different addition quantity, can produce the EPS concrete segment that density is different, use it for the building enclosure in house, can obtain good heat-insulating property, significant to building energy conservation.But the smooth and hydrophobic of EPS particle surface own, little with the inorganic coagulation material avidity of polarity, interface binding intensity is low, a little less than the bonding force of sand-cement slurry, causes the concrete intensity of EPS lower, and engineering application is restricted.Therefore, improving sand-cement slurry is the key problem in technology of preparation high-performance EPS cement-based material to the adhesive property of EPS particle.
Summary of the invention
One of object of the present invention is to provide a kind of new concrete and preparation method, utilize aglite to add granules of polystyrene and replace in conventional concrete building block the coarse aggregates such as stone, to reduce its deadweight, to improve the performance of heat preservation energy-saving, and solve and add the gelling material slurry defect little with adding granules of polystyrene interfacial adhesion that the hydrophobic nature of granules of polystyrene causes.
For achieving the above object, on the one hand, the invention provides a kind of new concrete, comprise water reducer, exciting agent, water, flyash and gelling material, described gelling material comprises cement, breeze and exciting agent.Described concrete also comprises granules of polystyrene and properties-correcting agent.
Further, described properties-correcting agent is trolamine.
Further, described granules of polystyrene granularity is at 3-5mm, and its tap density is 12.2 kg/m
3.
Further, the 10%-15% that the addition content of granules of polystyrene is described volume of concrete.
Further, the addition content of described trolamine has 6% of granules of polystyrene quality described in being.
On the other hand, the invention provides the foregoing concrete of a kind of manufacture, employing is not made shell method and is comprised: successively described granules of polystyrene, properties-correcting agent, gelling material, Sha Heshui are poured in agitator kettle and stirred, stir.
On the other hand, the invention provides the foregoing concrete of a kind of manufacture, employing make shell not ageing method comprise: spraying modified dose of described granules of polystyrene surface uniform to particle surface wetting evenly after, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch.Then add residue gelling material, sand, water, then stir.
On the other hand, the invention provides the foregoing concrete of a kind of manufacture, employing is made shell ageing method and is comprised: after spraying modified dose of described granules of polystyrene surface uniform soaks evenly to particle surface, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch.Masterbatch was sealed to ageing after 24 hours, add remaining gelling material, sand and water mix and blend.The present invention by adding granules of polystyrene and properties-correcting agent in new concrete, utilize aglite to add granules of polystyrene and replace in conventional concrete building block the coarse aggregates such as stone, to reduce its deadweight, to improve the performance of heat preservation energy-saving, and solve and add the gelling material slurry defect little with adding granules of polystyrene interfacial adhesion that the hydrophobic nature of granules of polystyrene causes.
Embodiment
Embodiment with concrete is further explained to explanation to new concrete of the present invention and preparation method below, but this is explained and is not formed the improper restriction to technical solution of the present invention.
The present invention is directed to new concrete selects trolamine modified polystyrene particle to make concrete segment proportioning in Table 1:
Table 1
The anti-folding of granules of polystyrene concrete segment, compressive strength test the results are shown in Table 2:
Table 2
As shown in table 1, by volume, volume fraction is 10%, 15% to granules of polystyrene volume.For to make the cement amount of masterbatch be cement consumption 1/3rd, be approximately 2.5 times of EPS quality.Properties-correcting agent adopts trolamine, and wherein trolamine consumption is 6% of EPS granular mass.
Granules of polystyrene volume adopts three kinds of method of modifying to obtain cement-based material and 7 days, 28 days folding strength tables of blank sample while being 10%, 15%.Three kinds of method of modifying are respectively:
1) adopt and not make shell method and comprise: successively granules of polystyrene, properties-correcting agent, gelling material, Sha Heshui are poured in agitator kettle and stirred, stir.
2) adopt make shell not ageing method comprise: spraying modified dose of granules of polystyrene surface uniform to particle surface wetting evenly after, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch.Then add residue gelling material, sand, water, then stir.
3) adopt and to make shell ageing method and comprise: spraying modified dose of granules of polystyrene surface uniform to particle surface wetting evenly after, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch.Masterbatch was sealed to ageing after 24 hours, add remaining gelling material, sand and water mix and blend.Hence one can see that:
No matter granules of polystyrene volume is 10% or 15%, after the surface modification through properties-correcting agent trolamine, do not make shell (directly dispersing and mixing), make not ageing of shell, make three kinds of method of modifying of shell ageing and all can effectively improve the folding strength of granules of polystyrene lightweight concrete building block.But method of modifying is different, it is also different that the folding strength of building block improves degree.
No matter granules of polystyrene volume is 10% or 15%, the folding strength of not making shell method of modifying (2#, 6#) and not ageing method of modifying (3#, 7#) is close, and apparently higher than blank sample (1#, 5#) with make the folding strength of two groups of samples of shell ageing method of modifying (4#, 8#).When wherein granules of polystyrene volume is 15%, 28 days folding strengths of not ageing method of modifying (7#) sample are the highest, than blank sample (5#), improve 32.3%.
Hence one can see that:
(1) no matter granules of polystyrene volume is 10% or 15%, after the surface modification through properties-correcting agent trolamine, do not make shell (directly dispersing and mixing), make not ageing of shell, make three kinds of method of modifying of shell ageing and all can effectively improve the ultimate compression strength of granules of polystyrene lightweight concrete building block.But method of modifying is different, it is also different that the ultimate compression strength of building block improves degree.
(2) no matter granules of polystyrene volume is 10% or 15%, after maintenance 7 days, the ultimate compression strength of not making shell method of modifying (2#, 6#) and not ageing method of modifying (3#, 7#) sample is close, but apparently higher than blank sample (1#, 5#) with make two groups of sample ultimate compression strength of shell ageing method of modifying (4#, 8#).
(3) maintenance is after 28 days, and the ultimate compression strength of not ageing method of modifying (3#, 7#) sample is apparently higher than other method of modifying.When wherein granules of polystyrene volume is 10%, not ageing method of modifying (3#) than blank sample (1#), do not make shell method of modifying (2#) and make shell ageing (4#) ultimate compression strength and exceed respectively 57.4%, 9.2%, 27.4%; When granules of polystyrene volume is 15%, not ageing method of modifying (7#) than blank sample (5#), do not make shell method of modifying (6#) and make shell ageing (8#) ultimate compression strength and exceed respectively 58%, 9.7%, 27.4%.
By the present invention, improve the interface bonding degree of gelling material and granules of polystyrene, thereby improve resistance to compression, the folding strength of test block.
It should be noted that; the above-mentioned explanation of disclosed embodiment makes professional and technical personnel in the field for the present embodiment, to carry out multiple types like changing and revising apparently; this similar variation is all distortion that those skilled in the art can directly draw or be easy to just associate from content disclosed by the invention, all should belong to protection scope of the present invention.Therefore the present invention can not be subject to the restriction of this embodiment.
Claims (8)
1. a new concrete, comprises water reducer, exciting agent, water, flyash and gelling material, and described gelling material comprises cement, breeze and exciting agent, it is characterized in that:
Described concrete also comprises granules of polystyrene and properties-correcting agent.
2. new concrete as claimed in claim 1, is characterized in that: described properties-correcting agent is trolamine.
3. new concrete as claimed in claim 1, is characterized in that: described granules of polystyrene granularity is at 3-5mm, and its tap density is 12.2 kg/m
3.
4. new concrete as claimed in claim 1, is characterized in that: the 10%-15% that the addition content of granules of polystyrene is described volume of concrete.
5. new concrete as claimed in claim 1, is characterized in that: the addition content of described trolamine has 6% of granules of polystyrene quality described in being.
6. a method of preparing new concrete as claimed in claim 1, is characterized in that: adopt and do not make shell method, it comprises, successively described granules of polystyrene, properties-correcting agent, gelling material, Sha Heshui is poured in agitator kettle and is stirred, and stirs.
7. a method of preparing new concrete as claimed in claim 1, it is characterized in that: adopt and make not ageing method of shell, it comprises, after described granules of polystyrene surface uniform sprinkling trolamine properties-correcting agent soaks evenly to particle surface, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch
Then add residue gelling material, sand, water, then stir.
8. a method of preparing new concrete as claimed in claim 1, it is characterized in that: adopt and make shell ageing method, it comprises, after described granules of polystyrene surface uniform sprinkling trolamine properties-correcting agent soaks evenly to particle surface, a certain amount of cement is evenly sprinkling upon to particle surface, particle is wrapped up by cement completely, stir and obtain masterbatch
Masterbatch was sealed to ageing after 24 hours, add remaining gelling material, sand and water mix and blend.
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| CN201310725666.9A CN103755252A (en) | 2013-12-25 | 2013-12-25 | Novel concrete and preparation method thereof |
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| CN201310725666.9A CN103755252A (en) | 2013-12-25 | 2013-12-25 | Novel concrete and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794060A (en) * | 2018-07-19 | 2018-11-13 | 常州大学 | A kind of resource utilization method of maize straw |
| CN109293389A (en) * | 2018-12-03 | 2019-02-01 | 安徽工业大学 | A kind of novel wall material and preparation method thereof |
| CN112408921A (en) * | 2020-12-15 | 2021-02-26 | 温州鼎玛建筑技术有限公司 | Energy-saving concrete for building and preparation process thereof |
| CN113149553A (en) * | 2020-08-10 | 2021-07-23 | 河海大学 | Light heat-preservation high-strength concrete and preparation method thereof |
| CN114797615A (en) * | 2022-04-26 | 2022-07-29 | 浙江大学 | Modified cementing material, preparation method thereof and mixing system |
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| CN101492943A (en) * | 2009-01-24 | 2009-07-29 | 南京倍立达实业有限公司 | Self-insulating decorative building block and method for producing the same |
| CN101525226A (en) * | 2009-04-13 | 2009-09-09 | 吕运征 | Insulating dry powder mortar |
| CN103011713A (en) * | 2012-12-30 | 2013-04-03 | 李丰刚 | Waste foam concrete insulation material and preparation method thereof |
| CN103121814A (en) * | 2013-02-22 | 2013-05-29 | 广西工学院 | Lightweight concrete and preparation method and applications thereof |
-
2013
- 2013-12-25 CN CN201310725666.9A patent/CN103755252A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492943A (en) * | 2009-01-24 | 2009-07-29 | 南京倍立达实业有限公司 | Self-insulating decorative building block and method for producing the same |
| CN101525226A (en) * | 2009-04-13 | 2009-09-09 | 吕运征 | Insulating dry powder mortar |
| CN103011713A (en) * | 2012-12-30 | 2013-04-03 | 李丰刚 | Waste foam concrete insulation material and preparation method thereof |
| CN103121814A (en) * | 2013-02-22 | 2013-05-29 | 广西工学院 | Lightweight concrete and preparation method and applications thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108794060A (en) * | 2018-07-19 | 2018-11-13 | 常州大学 | A kind of resource utilization method of maize straw |
| CN109293389A (en) * | 2018-12-03 | 2019-02-01 | 安徽工业大学 | A kind of novel wall material and preparation method thereof |
| CN113149553A (en) * | 2020-08-10 | 2021-07-23 | 河海大学 | Light heat-preservation high-strength concrete and preparation method thereof |
| CN112408921A (en) * | 2020-12-15 | 2021-02-26 | 温州鼎玛建筑技术有限公司 | Energy-saving concrete for building and preparation process thereof |
| CN114797615A (en) * | 2022-04-26 | 2022-07-29 | 浙江大学 | Modified cementing material, preparation method thereof and mixing system |
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Inventor after: Wu Huiqin Inventor after: Dong Jianmiao Inventor after: Chen Xiaoli Inventor after: Wu Chao Inventor before: Wu Huiqin Inventor before: Chen Xiaoli |
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Free format text: CORRECT: INVENTOR; FROM: WU HUIQIN CHEN XIAOLI TO: WU HUIQIN DONG JIANMIAO CHEN XIAOLI WU CHAO |
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Application publication date: 20140430 |