CN105884275A - Elastic concrete and preparation method thereof - Google Patents
Elastic concrete and preparation method thereof Download PDFInfo
- Publication number
- CN105884275A CN105884275A CN201610219187.3A CN201610219187A CN105884275A CN 105884275 A CN105884275 A CN 105884275A CN 201610219187 A CN201610219187 A CN 201610219187A CN 105884275 A CN105884275 A CN 105884275A
- Authority
- CN
- China
- Prior art keywords
- mesh
- concrete
- elastic concrete
- elastic
- performed polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910021487 silica fume Inorganic materials 0.000 claims abstract description 16
- 239000006004 Quartz sand Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000004568 cement Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 229920000642 polymer Polymers 0.000 claims description 19
- 239000013530 defoamer Substances 0.000 claims description 13
- 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 description 10
- 238000003756 stirring Methods 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000005056 polyisocyanate Substances 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 5
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 239000011398 Portland cement Substances 0.000 claims description 2
- 239000012948 isocyanate Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005489 elastic deformation Effects 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000000454 talc Substances 0.000 abstract 1
- 229910052623 talc Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000009775 high-speed stirring Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000002689 soil Substances 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses elastic concrete and a preparation method thereof. The elastic concrete comprises raw materials in percentage by weight as follows: 10%-40% of a two-component prepolymer, 10%-40% of a curing agent, 5%-40% of quartz sand, 1%-3% of silica fume, 0-20% of talc, 0-20% of cement, 0-15% of steel fibers and 0.1%-1% of an antifoaming agent. The elastic concrete has good elastic deformation capacity, an impact effect on a concrete member can be well dissipated through elastic deformation of the concrete, the elastic concrete has the advantages of high strength, better toughness, higher breaking strength, rapid curing property, better caking performance and wear resistance and can be applied to aspects of roads, bridges, floors, runways and the like.
Description
Technical field
The present invention relates to a kind of elastic concrete and preparation method thereof.
Background technology
Along with developing rapidly of economy and going deep into of modernization construction, highway, city intersection and high-speed iron
Road emerges in multitude, and the application of concrete also gets more and more, and the requirement to its performance is more and more higher simultaneously.Mixed
Expanding with heat and contract with cold of solidifying soil itself compromises the durability of xoncrete structure, greatly so xoncrete structure is necessary
Arranging expansion joint, the filling of conventional concrete extension joint uses steel plate or polyurethane and Colophonium to connect, steel plate bullet
Property limited, polyurethane and asphalt elasticity are fine, but ageing-resistant ability is the poorest, and with the bonding of concrete
Power is not ideal enough.Therefore, under conditions of satisfied use intensity, how to improve concrete impact resistance,
The performance such as durability and cohesive force is the significant problem that scientific researcher faces.To this end, researchers seek
The new concrete that a kind of engineering property is excellent, i.e. elastic concrete is looked for improve many performances of concrete,
Even give its new performance.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of has good elastic deformability, by self
Elastic deformation can dissipate very well percussion suffered by concrete component, have high intensity, preferable toughness,
Bigger rupture strength, fast setting, preferable caking property, wear-resisting, and road, bridge, building can be applied to
The elastic concrete of the aspect such as plate, runway.
Technology and method in order to solve the employing of the above-mentioned problem present invention are as follows:
A kind of elastic concrete, including the raw material of following percentage by weight: double-component performed polymer 10-40%, Gu
Agent 10-40%, quartz sand 5-40%, SILICA FUME 1-3%, Pulvis Talci 0-20%, cement 0-20%, steel is fine
Dimension 0-15% and defoamer 0.1-1%.
Further, described performed polymer is polyurethanes, including modified polyisocyanate, terminal hydroxy group performed polymer
With one or more in enclosed type performed polymer.
Further, described firming agent be toluene di-isocyanate(TDI), 4,4 '-methyl diphenylene diisocyanate, six
One or more in methylene diisocyanate.
Further, described quartz sand specification be 10-20 mesh, 16-32 mesh, 30-60 mesh, 70-120 mesh or
325 mesh.
Further, described Pulvis Talci specification is 200 mesh, 325 mesh, 1250 mesh or 2500 mesh.
Further, described defoamer is organic silicon defoamer.
Further, described SILICA FUME specific surface area >=25000m2/ kg, silicon content >=98%.
Further, described cement is Portland cement, and specification is P.O.42.5R or P.O.52.5R.
The preparation method of a kind of elastic concrete, takes quartz sand 5-40%, SILICA FUME 1-3% by total mass ratio,
Pulvis Talci 0-20%, cement 0-20%, steel fibre 0-15% and defoamer 0.1-1% are placed in stirring container and stir
Uniformly obtain aggregate；Secondly total mass ratio takes firming agent 10-40% and joins aggregate high speed and stir；?
Rear total mass ratio takes double-component performed polymer 10-40% and again adds, and high-speed stirred is to uniformly.
The invention have the benefit that the use of the performed polymer in this elastic concrete and firming agent can improve
The curing rate of concrete, makes concrete have elasticity and the anti-wear performance of excellence, it is thus possible to improve material simultaneously
Material impact resistance；Quartz sand as addition of gathering materials, can improve the intensity of concrete；SILICA FUME is as filling out
Charge can make concrete more closely knit by the intergranular hole of filled stone sand, thus improves its intensity, additionally,
SILICA FUME can efficiently control concrete expansion, increases shrinkage factor；Pulvis Talci can increase as inserts
The mobility of concrete mix.
Detailed description of the invention
Embodiment 1:
A kind of elastic concrete, is made up of double-component performed polymer A, firming agent B and special aggregate C, special
Aggregate C is constituted as follows: quartz sand 300g, SILICA FUME 10g, cement 80g, and defoamer 10g adds mixing and holds
Device stirs, is subsequently adding curing agent toluene diisocyanate 300g, high-speed stirred 4min, finally adds
Enter terminal hydroxy group performed polymer 300g and i.e. obtain this product to above-mentioned compound high speed stirring 3min.
Embodiment 2:
A kind of elastic concrete, is made up of double-component performed polymer A, firming agent B and special aggregate C, special
Aggregate C is constituted as follows: quartz sand 360g, steel fibre 120g, SILICA FUME 10g, and defoamer 10g adds mixed
Close in container and stir, be subsequently adding curing agent toluene diisocyanate 250g, high-speed stirred 4min,
Rear addition terminal hydroxy group performed polymer 250g i.e. obtains this product to above-mentioned compound high speed stirring 3min.
Embodiment 3:
A kind of elastic concrete, is made up of double-component performed polymer A, firming agent B and special aggregate C, special
Aggregate C is constituted as follows: quartz sand 360g, steel fibre 115g, SILICA FUME 15g, and defoamer 10g adds mixed
Close in container and stir, be subsequently adding firming agent hexamethylene diisocyanate 250g, high-speed stirred 4min,
It is eventually adding modified polyisocyanate 250g and i.e. obtains this product to above-mentioned compound high speed stirring 3min.
Embodiment 4:
A kind of elastic concrete, is made up of double-component performed polymer A, firming agent B and special aggregate C, special
Aggregate C is constituted as follows: quartz sand 400g, Pulvis Talci 120g, SILICA FUME 20g, and defoamer 10g adds mixed
Close in container and stir, be subsequently adding firming agent hexamethylene diisocyanate 225g, high-speed stirred 4min,
It is eventually adding modified polyisocyanate 225g and i.e. obtains this product to above-mentioned compound high speed stirring 3min.
Embodiment 5:
A kind of elastic concrete, is made up of double-component performed polymer A, firming agent B and special aggregate C.Special
Aggregate C is constituted as follows: quartz sand 400g, Pulvis Talci 130g, SILICA FUME 20g, and defoamer 10g adds mixed
Close in container and stir, be subsequently adding firming agent hexamethylene diisocyanate 220g, high-speed stirred 4min,
It is eventually adding modified polyisocyanate 220g and i.e. obtains this product to above-mentioned compound high speed stirring 3min.
In embodiment 1-embodiment 5, checking different proportioning raw materials, select effect optimal set, result is shown in
Following table.
| Embodiment | 1 | 2 | 3 | 4 | 5 |
| Hardening time | 14min | 13min | 10min | 10min | 10min |
| Mobility | Preferably | Preferably | Preferably | Good | Good |
| Degrees of expansion | Slightly | Slightly | Nothing | Nothing | Nothing |
| Comprcssive 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 |
As can be seen here, the proportioning in embodiment 5 can reach the optimal using effect of elastic concrete.
The invention has the beneficial effects as follows: performed polymer and the use of firming agent in this elastic concrete can improve
The curing rate of concrete, makes concrete have elasticity and the anti-wear performance of excellence, it is thus possible to improve material simultaneously
Material impact resistance；Quartz sand as addition of gathering materials, can improve the intensity of concrete；SILICA FUME is as filling out
Charge can make concrete more closely knit by the intergranular hole of filled stone sand, thus improves its intensity, additionally,
SILICA FUME can efficiently control concrete expansion, increases shrinkage factor；Pulvis Talci can increase as inserts
The mobility of concrete mix.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to
This, any change expected without creative work or replacement, all should contain in protection scope of the present invention
Within, therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (9)
1. an elastic concrete, it is characterised in that: include the raw material of following percentage by weight: double-component performed polymer 10-40%, firming agent 10-40%, quartz sand 5-40%, SILICA FUME 1-3%, Pulvis Talci 0-20%, cement 0-20%, steel fibre 0-15% and defoamer 0.1-1%.
Elastic concrete the most according to claim 1, it is characterised in that: described performed polymer is polyurethanes, including one or more in modified polyisocyanate, terminal hydroxy group performed polymer and enclosed type performed polymer.
Elastic concrete the most according to claim 1, it is characterised in that: described firming agent be toluene di-isocyanate(TDI), 4, one or more in 4 '-methyl diphenylene diisocyanate, hexamethylene diisocyanate.
Elastic concrete the most according to claim 1, it is characterised in that: described quartz sand specification is 10-20 mesh, 16-32 mesh, 30-60 mesh, 70-120 mesh or 325 mesh.
Elastic concrete the most according to claim 1, it is characterised in that: described Pulvis Talci specification is 200 mesh, 325 mesh, 1250 mesh or 2500 mesh.
Elastic concrete the most according to claim 1, it is characterised in that: described defoamer is organic silicon defoamer.
Elastic concrete the most according to claim 1, it is characterised in that: described SILICA FUME specific surface area >=25000m2/ kg, silicon content >=98%.
Elastic concrete the most according to claim 1, it is characterised in that: described cement is Portland cement, and specification is P.O.42.5R or P.O.52.5R.
9. the preparation method of an elastic concrete, it is characterised in that: by total mass ratio take quartz sand 5-40%, SILICA FUME 1-3%, Pulvis Talci 0-20%, cement 0-20%, steel fibre 0-15% and defoamer 0.1-1% be placed on stirring container in be uniformly mixing to obtain aggregate；Secondly total mass ratio takes firming agent 10-40% and joins aggregate high speed and stir；Last total mass ratio takes double-component performed polymer 10-40% and again adds, and high-speed stirred is to uniformly.
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 true CN105884275A (en) | 2016-08-24 |
| CN105884275B CN105884275B (en) | 2018-11-09 |
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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 |
|---|---|
| CN (1) | CN105884275B (en) |
Cited By (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 |
| CN112441795A (en) * | 2020-12-07 | 2021-03-05 | 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 |
Cited By (3)
| 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 |
| CN112441795A (en) * | 2020-12-07 | 2021-03-05 | 斯博锐精细化学品(广东)有限公司 | Cement-based non-vibration ramp material and preparation method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105884275B (en) | 2018-11-09 |
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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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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 |