CN105884275B - A kind of elastic concrete and preparation method thereof - Google Patents
A kind of elastic concrete and preparation method thereof Download PDFInfo
- Publication number
- CN105884275B CN105884275B CN201610219187.3A CN201610219187A CN105884275B CN 105884275 B CN105884275 B CN 105884275B CN 201610219187 A CN201610219187 A CN 201610219187A CN 105884275 B CN105884275 B CN 105884275B
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- Prior art keywords
- mesh
- concrete
- elastic concrete
- elastic
- quartz sand
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- 239000004567 concrete Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 16
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 10
- 239000005056 polyisocyanate Substances 0.000 claims description 6
- 229920001228 polyisocyanate Polymers 0.000 claims description 6
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 5
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000013530 defoamer Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 5
- 238000009527 percussion Methods 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000011398 Portland cement Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Abstract
The present invention discloses a kind of elastic concrete and preparation method thereof, includes the raw material of following weight percent：Two-component performed polymer 10-40%, curing agent 10-40%, quartz sand 5-40%, SILICA FUME 1-3%, talcum powder 0-20%, cement 0-20%, steel fibre 0-15% and antifoaming agent 0.1-1%, the elastic concrete have good elastic deformability, can be dissipated very well percussion suffered by concrete component by the flexible deformation of itself, with high intensity, preferable toughness, larger flexural strength, rapid curing, preferable caking property, wear-resisting, and can be applied to road, bridge, floor, runway etc..
Description
Technical field
The present invention relates to a kind of elastic concretes and preparation method thereof.
Background technology
With going deep into for economic rapid development and modernization construction, highway, city intersection and high-speed railway are a large amount of
It emerges in large numbers, the application of concrete is also more and more, while the requirement to its performance is also higher and higher.Concrete itself expands with heat and contract with cold
The durability for greatly compromising concrete structure, so concrete structure must be provided with expansion joint, previous concrete extension joint
Filling connected with pitch using steel plate or polyurethane, steel plate finite elastic, polyurethane and asphalt elasticity are fine, but ageing-resistant
Ability is too poor, and not ideal enough with the cohesive force of concrete.Therefore, under conditions of meeting use intensity, how to improve mixed
It is the significant problem that scientific researcher faces to coagulate the performances such as impact resistance, durability and the cohesive force of soil.For this purpose, research
Persons find a kind of new concrete that engineering property is excellent, i.e. elastic concrete improves many performances of concrete, even
Assign its new performance.
Invention content
The technical problem to be solved in the present invention is to provide one kind having good elastic deformability, passes through the elasticity of itself
Deformation can dissipate percussion suffered by concrete component very well, have high intensity, preferable toughness, larger flexural strength, quickly
Elastic concrete that is solidification, preferable caking property, wear-resisting, and can be applied to road, bridge, floor, runway etc..
In order to which the technology and method that solve the problem above-mentioned use of the invention are as follows：
A kind of elastic concrete includes the raw material of following weight percent：Two-component performed polymer 10-40%, curing agent 10-
40%, quartz sand 5-40%, SILICA FUME 1-3%, talcum powder 0-20%, cement 0-20%, steel fibre 0-15% and antifoaming agent
0.1-1%.
Further, the performed polymer is polyurethanes, including modified polyisocyanate, terminal hydroxy group performed polymer and enclosed type
One or more in performed polymer.
Further, the curing agent is toluene di-isocyanate(TDI), 4,4 '-methyl diphenylene diisocyanates, six methylenes
One or more in group diisocyanate.
Further, the quartz sand specification is 10-20 mesh, 16-32 mesh, 30-60 mesh, 70-120 mesh or 325 mesh.
Further, the talcum powder specification is 200 mesh, 325 mesh, 1250 mesh or 2500 mesh.
Further, the antifoaming agent is organic silicon defoamer.
Further, the SILICA FUME specific surface area >=25000m2/ kg, silicon content >=98%.
Further, the cement is Portland cement, and specification is P.O.42.5R or P.O.52.5R.
A kind of preparation method of elastic concrete takes quartz sand 5-40%, SILICA FUME 1-3%, talcum powder by total mass ratio
0-20%, cement 0-20%, steel fibre 0-15% and antifoaming agent 0.1-1% are placed in stirring container and are uniformly mixing to obtain aggregate；
Secondly total mass ratio takes curing agent 10-40% to be added to aggregate high speed and stirs evenly；Last total mass ratio takes two-component pre-polymerization
Body 10-40% is added again, and high-speed stirred is to uniformly.
Beneficial effects of the present invention are：The use of performed polymer and curing agent in the elastic concrete can improve concrete
Curing rate, while make concrete have excellent elasticity and wear-resisting property, so as to improve material impact resistance；Quartz
Sand can be used as addition of gathering materials, and improve the intensity of concrete；SILICA FUME can fill the intergranular hole of quartz sand as filler material
Gap keeps concrete more closely knit, thus improves its intensity, in addition, SILICA FUME can efficiently control concrete expansion, increases and receives
Shrinkage；Talcum powder can increase the mobility of concrete mix as filler material.
Specific implementation mode
Embodiment 1：
A kind of elastic concrete, by two-component performed polymer A, curing agent B and special aggregate C are constituted, the following structures of special aggregate C
At：Quartz sand 300g, SILICA FUME 10g, cement 80g, antifoaming agent 10g are added in mixing vessel and stir evenly, and solidification is then added
Agent toluene di-isocyanate(TDI) 300g, high-speed stirred 4min are eventually adding terminal hydroxy group performed polymer 300g to above-mentioned mixture high speed
3min is stirred up to this product.
Embodiment 2：
A kind of elastic concrete, by two-component performed polymer A, curing agent B and special aggregate C are constituted, the following structures of special aggregate C
At：Quartz sand 360g, steel fibre 120g, SILICA FUME 10g, antifoaming agent 10g are added in mixing vessel and stir evenly, and are then added solid
Agent toluene di-isocyanate(TDI) 250g, high-speed stirred 4min are eventually adding in terminal hydroxy group performed polymer 250g to above-mentioned mixture high
3min is up to this product for speed stirring.
Embodiment 3：
A kind of elastic concrete, by two-component performed polymer A, curing agent B and special aggregate C are constituted, the following structures of special aggregate C
At：Quartz sand 360g, steel fibre 115g, SILICA FUME 15g, antifoaming agent 10g are added in mixing vessel and stir evenly, and are then added solid
Agent hexamethylene diisocyanate 250g, high-speed stirred 4min, are eventually adding modified polyisocyanate 250g to above-mentioned mixing
Expect that high speed stirs 3min up to this product.
Embodiment 4：
A kind of elastic concrete, by two-component performed polymer A, curing agent B and special aggregate C are constituted, the following structures of special aggregate C
At：Quartz sand 400g, talcum powder 120g, SILICA FUME 20g, antifoaming agent 10g are added in mixing vessel and stir evenly, and are then added solid
Agent hexamethylene diisocyanate 225g, high-speed stirred 4min, are eventually adding modified polyisocyanate 225g to above-mentioned mixing
Expect that high speed stirs 3min up to this product.
Embodiment 5：
A kind of elastic concrete, by two-component performed polymer A, curing agent B and special aggregate C are constituted.The following structures of special aggregate C
At：Quartz sand 400g, talcum powder 130g, SILICA FUME 20g, antifoaming agent 10g are added in mixing vessel and stir evenly, and are then added solid
Agent hexamethylene diisocyanate 220g, high-speed stirred 4min, are eventually adding modified polyisocyanate 220g to above-mentioned mixing
Expect that high speed stirs 3min up to this product.
In embodiment 1- embodiments 5, different raw material proportionings is examined, effect optimal set is selected, as a result see the table below.
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Hardening time | 14min | 13min | 10min | 10min | 10min |
| Mobility | Preferably | Preferably | Preferably | It is good | It is good |
| Degrees of expansion | Slightly | Slightly | Nothing | Nothing | Nothing |
| Compression strength | 25.4MPa | 25.5MPa | 25.9MPa | 30MPa | 40MPa |
| Resilience (5% deformation) | 97% | 96% | 96% | 99% | 99% |
| With concrete binding power | 1.9MPa | 2.2MPa | 2.2MPa | 2.8MPa | 2.8MPa |
| Impact resistance | Free from flaw | Free from flaw | Free from flaw | Free from flaw | Free from flaw |
It can be seen that the proportioning in embodiment 5 can reach the best use effect of elastic concrete.
The beneficial effects of the invention are as follows：The use of performed polymer and curing agent in the elastic concrete can improve concrete
Curing rate, while make concrete have excellent elasticity and wear-resisting property, so as to improve material impact resistance；Quartz
Sand can be used as addition of gathering materials, and improve the intensity of concrete；SILICA FUME can fill the intergranular hole of quartz sand as filler material
Gap keeps concrete more closely knit, thus improves its intensity, in addition, SILICA FUME can efficiently control concrete expansion, increases and receives
Shrinkage；Talcum powder can increase the mobility of concrete mix as filler material.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention, therefore, of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of elastic concrete, which is characterized in that be prepared by the raw material of following dosage：Modified polyisocyanate 220g,
Curing agent hexamethylene diisocyanate 220g, quartz sand 400g, SILICA FUME 20g, talcum powder 130g, antifoaming agent 10g.
2. elastic concrete according to claim 1, it is characterised in that：The quartz sand specification is 10-20 mesh, 16-32
Mesh, 30-60 mesh, 70-120 mesh or 325 mesh.
3. elastic concrete according to claim 1, it is characterised in that：The talcum powder specification be 200 mesh, 325 mesh,
1250 mesh or 2500 mesh.
4. elastic concrete according to claim 1, it is characterised in that：The antifoaming agent is organic silicon defoamer.
5. elastic concrete according to claim 1, it is characterised in that：SILICA FUME specific surface area >=the 25000m2/kg,
Silicon content >=98%.
6. a kind of preparation method of elastic concrete, it is characterised in that：By quartz sand 400g, talcum powder 130g, SILICA FUME 20g,
Antifoaming agent 10g is added in mixing vessel and stirs evenly, and curing agent hexamethylene diisocyanate 220g, high-speed stirred is then added
4min is eventually adding modified polyisocyanate 220g and stirs 3min to above-mentioned mixture high speed up to elastic concrete product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219187.3A CN105884275B (en) | 2016-04-08 | 2016-04-08 | A kind of elastic concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610219187.3A CN105884275B (en) | 2016-04-08 | 2016-04-08 | A kind of elastic concrete and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105884275A CN105884275A (en) | 2016-08-24 |
| CN105884275B true CN105884275B (en) | 2018-11-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610219187.3A Active CN105884275B (en) | 2016-04-08 | 2016-04-08 | A kind of elastic concrete and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105884275B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110863670A (en) * | 2019-12-12 | 2020-03-06 | 山东奥能电力科技有限公司 | Method for repairing corrosion of tower foot of transmission steel tower |
| CN112441795B (en) * | 2020-12-07 | 2021-06-25 | 斯博锐精细化学品(广东)有限公司 | Cement-based non-vibration ramp material and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735595A (en) * | 2009-12-08 | 2010-06-16 | 中国铁道科学研究院金属及化学研究所 | Polyurethane resin composition, preparation method and application thereof |
| CN101838514A (en) * | 2010-01-27 | 2010-09-22 | 北京高盟新材料股份有限公司 | Method for preparing polyurethane adhesive |
| CN102617070A (en) * | 2012-03-23 | 2012-08-01 | 重庆市智翔铺道技术工程有限公司 | Polyurethane asphalt concrete as well as preparation method and application thereof |
| CN103627330A (en) * | 2012-08-29 | 2014-03-12 | 卢清友 | Composite rubber material |
| CN105036612A (en) * | 2015-07-23 | 2015-11-11 | 南京道润交通科技有限公司 | High-strength super-toughness resin concrete and preparing method thereof |
-
2016
- 2016-04-08 CN CN201610219187.3A patent/CN105884275B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735595A (en) * | 2009-12-08 | 2010-06-16 | 中国铁道科学研究院金属及化学研究所 | Polyurethane resin composition, preparation method and application thereof |
| CN101838514A (en) * | 2010-01-27 | 2010-09-22 | 北京高盟新材料股份有限公司 | Method for preparing polyurethane adhesive |
| CN102617070A (en) * | 2012-03-23 | 2012-08-01 | 重庆市智翔铺道技术工程有限公司 | Polyurethane asphalt concrete as well as preparation method and application thereof |
| CN103627330A (en) * | 2012-08-29 | 2014-03-12 | 卢清友 | Composite rubber material |
| CN105036612A (en) * | 2015-07-23 | 2015-11-11 | 南京道润交通科技有限公司 | High-strength super-toughness resin concrete and preparing method thereof |
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| Publication number | Publication date |
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| CN105884275A (en) | 2016-08-24 |
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| CB03 | Change of inventor or designer information |
Inventor after: Lei Bin Inventor after: Fan Zhifeng Inventor after: Zhang Shunxian Inventor after: Zhang Yucai Inventor after: Liu Cuiping Inventor before: Lei Bin Inventor before: Yang Qiwen Inventor before: Xie Jianfeng Inventor before: Fan Zhifeng Inventor before: Liu Cuiping |
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| CB03 | Change of inventor or designer information |
Inventor after: Lei Bin Inventor after: Fan Zhifeng Inventor after: Zhang Shunxian Inventor after: Zhang Yucai Inventor after: Liu Cuiping Inventor before: Lei Bin Inventor before: Fan Zhifeng Inventor before: Zhang Shunxian Inventor before: Zhang Yucai Inventor before: Liu Cuiping |
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Denomination of invention: Elastic concrete and preparation method thereof Effective date of registration: 20190327 Granted publication date: 20181109 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Panyu branch Pledgor: GUANGZHOU KRYSTIC BUILDING MATERIALS Co.,Ltd. Registration number: 2019440000123 |
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Granted publication date: 20181109 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Panyu branch Pledgor: GUANGZHOU KRYSTIC BUILDING MATERIALS Co.,Ltd. Registration number: 2019440000123 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: An elastic concrete and its preparation method Granted publication date: 20181109 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Panyu branch Pledgor: GUANGZHOU KRYSTIC BUILDING MATERIALS Co.,Ltd. Registration number: Y2024980004861 |