CN108249851A - A kind of environment-friendly type clear-water concrete and preparation method thereof - Google Patents
A kind of environment-friendly type clear-water concrete and preparation method thereof Download PDFInfo
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- CN108249851A CN108249851A CN201810060761.4A CN201810060761A CN108249851A CN 108249851 A CN108249851 A CN 108249851A CN 201810060761 A CN201810060761 A CN 201810060761A CN 108249851 A CN108249851 A CN 108249851A
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- type clear
- water concrete
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000004567 concrete Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000002893 slag Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 18
- 235000013312 flour Nutrition 0.000 claims abstract description 16
- 239000004576 sand Substances 0.000 claims abstract description 16
- 239000000654 additive Substances 0.000 claims abstract description 13
- 230000000996 additive effect Effects 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 14
- 239000004568 cement Substances 0.000 claims description 13
- 229920005646 polycarboxylate Polymers 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 239000011398 Portland cement Substances 0.000 claims description 4
- 235000013339 cereals Nutrition 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000004075 alteration Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002699 waste material 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
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
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)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of environment-friendly type clear-water concrete, 645 790kg/m of Machine-made Sand3；385 495kg/m of cementitious material3；Additive is the 8%~16% of the cementitious material weight；Water for the cementitious material weight 30% 38%；990 1150kg/m of rubble3.A kind of preparation method for preparing the environment-friendly type clear-water concrete, includes the following steps：Determine the match ratio of a variety of materials in the composition environment-friendly type clear-water concrete；Additive, cementitious material, 60% 70% water and Machine-made Sand are added in blender and stir 10 20s, is stirred evenly；Then rubble is added in blender and continues 15 20s of mix；Remaining water is added in blender and continues to stir, it is 150s to keep total mixing time；Environment-friendly type clear-water concrete is obtained after mix.Present invention process is simple, and not only Tunnel slag is fully recycled, has saved resource, protects environment, and also improve the appearance of clear-water concrete by the addition of silica flour and fine microballon, makes clear-water concrete appearance more clean beautiful.
Description
Technical field
The invention belongs to technical field of concrete, and in particular to a kind of environment-friendly type clear-water concrete and preparation method thereof.
Background technology
On the one hand, as China railways, highway further extend to west area, not only tunnel quantity can not with total length
It is disconnected to be promoted, and the vcehicular tunnel more than 10km, the railway tunnel more than 20km will be more and more, and super long tunnel will become
" new normality ".Therefore Tunnel slag will also increase year by year caused by these super long tunnels, how handle these Tunnel slags pair well
Resource-conserving and environment-friendly society is established in China to be of great significance.At present, for the processing of Tunnel slag, China
Usually abandoned as waste residue, not only land occupation but also influenced environment, and on engineer application China's then generally use method
It is as road-making material, is mainly used in backfill, bed course and roadbed filling, and seldom uses it for production sandstone
Material, and then applied to cement concrete.
On the other hand, it in recent years, clear-water concrete starts to be vigorously promoted the use in China, quickly grows, such as at present
It is clear-water concrete project in port Zhuhai and Macao bridge, the Qingdao region R3 lines etc. built.Clear-water concrete is naturally after molding with it
Appearance is as facing, great artistry, simultaneously because requirement of the clear-water concrete to construction quality is very high, therefore it can extend
Correlation engineering service life, as port Zhuhai and Macao Design of Bridge service life is up to 120 years.Exactly because however, clear-water concrete this
Kind causes the difficulty of construction of clear-water concrete at home very big, while again due to state almost harsh quality requirement of constructing
Interior technology is still immature, therefore the faced concrete surface of construction molding is also easily there are the defects of a large amount of bubble, aberration, these
All greatly constrain being widely applied for clear-water concrete.
Tunnel slag is such as applied to the preparation of clear-water concrete, and a large amount of gas existing for faced concrete surface can be solved
The defects of bubble, aberration problem, it will greatly push the application of Tunnel slag and the development of clear-water concrete, while also save
Resource protects environment, therefore all has extremely great meaning to China Tunnel Slag treatment and clear-water concrete development.So
And due to technical difficult point, it is applied to clear-water concrete without a kind of related Tunnel slag so far and quality, appearance is good
Patent be disclosed.
Invention content
For the above-mentioned prior art the shortcomings that or deficiency, the technical problem to be solved in the present invention is to provide a kind of environment-friendly type is clear
Water coagulation soil and preparation method thereof, present invention process is simple, and Tunnel slag is not only applied to the preparation of clear-water concrete, without
Cause the decline of quality, moreover it is possible to the defects of solving the problems, such as a large amount of bubble, aberration existing for faced concrete surface.
In order to solve the above technical problems, the present invention has following form：
A kind of environment-friendly type clear-water concrete, including Machine-made Sand, cementitious material, additive, water and rubble, respectively according to
Following weight proportion weighs raw material：Machine-made Sand 645-790kg/m3；Cementitious material 385-495kg/m3；Additive is the gelling
The 8%~16% of material weight；Water is the 30%-38% of the cementitious material weight；Rubble 990-1150kg/m3。
The Machine-made Sand is partly or entirely made of broken Tunnel slag, wherein, the full water of the Tunnel slag resists
Compressive Strength >=60MPa, the fineness modulus that Machine-made Sand is used for after crushing are 2.3-3.0, and clay content is less than 2%, and clod content
Less than 1%；The broken Tunnel slag is without potential basic active.
The cementitious material includes cement, miberal powder, silica flour and fine microballon, wherein, cement is not less than for strength grade
The portland cement or Portland cement of 42.5MPa, miberal powder are S95 miberal powders, and silica flour is density size 2.0-2.3g/cm3,
The common silica flour of 1000-4000 purposes, fine microballon are spherical, main component SiO2, grain size 1-3um.
The cement, miberal powder, silica flour and fine microballon weight ratio be cement：Miberal powder：Silica flour：Fine microballon=45-
75%：20-40%：1-5%：1-8%.
The rubble is that continuous grading rubble, grain size 5-25mm, and the stone contents of gill shape are less than 10%, containing mud
Amount is less than 1%, and clod content is less than 0.5%.
The rubble is crushed by Tunnel slag or ordinary gravel and is made.
The additive is polycarboxylate water-reducer or composite water-reducing agent, wherein, the weight ratio of the composite water-reducing agent is 85-
100% polycarboxylate water-reducer：0.5-1.5% antifoaming agent：2-5% air entraining agents：3-7% tackifier.
The water is tap water or pure water.
A kind of preparation method for preparing the environment-friendly type clear-water concrete, includes the following steps：It determines to form the environmental protection
The match ratio of a variety of materials in type clear-water concrete；Additive, cementitious material, the water of 60%-70% and Machine-made Sand are added in
10-20s is stirred in blender, is stirred evenly；Then rubble is added in blender and continues mix 15-20s；It will be remaining
Water, which is added in blender, to be continued to stir, and it is 150s to keep total mixing time；Environment-friendly type clear-water concrete is obtained after mix.
Compared with prior art, the present invention has the following technical effect that：
Tunnel slag is used as the raw material of production mechanism sand and building stones by the present invention, and not only Tunnel slag is fully carried out
It recycles, also as save resource, protect environment；The addition of silica flour and fine microballon can improve clear water coagulation in the present invention
The appearance of soil, makes that clear-water concrete appearance more bright color is uniform, bubble is less；The addition of particularly fine microballon can change
Kind concrete viscosity reduces fair-faced concrete molding rear surface bubble and reduces aberration, makes clear-water concrete appearance more dry
It is net beautiful, so as to reach clear water effect.
Specific embodiment
The technique effect of the design of the present invention, concrete structure and generation will be described further below, with fully
Solve the purpose of the present invention, feature and effect.
Embodiment 1
A kind of environment-friendly type clear-water concrete, including Machine-made Sand, cementitious material, additive, water and rubble.According to the following group
Weight proportion is divided to weigh raw material：Machine-made Sand 731kg/m3, cement 249kg/m3, miberal powder 184kg/m3, silica flour 18.6kg/m3With essence
Subtle pearl 28.4kg/m3, rubble 1032kg/m3, polycarboxylate water-reducer 5.6kg/m3, water 149kg/m3。
The preparation method of environment-friendly type clear-water concrete is as follows：
1) according to clear-water concrete related request and Concrete Design related specifications, environment-friendly type described in the present embodiment is determined
Clear-water concrete match ratio, wherein：
Machine-made Sand 731kg/m3, cement 249kg/m3, miberal powder 184kg/m3, silica flour 18.6kg/m3With fine microballon
28.4kg/m3, rubble 1032kg/m3, polycarboxylate water-reducer 5.6kg/m3, water 149kg/m3；
2) additive, cementitious material, 60% water, Machine-made Sand are added in blender and stir 10s, stirred evenly；
3) rubble is added in blender and continues mix 15s；
4) remaining water is added in blender, it is 150s to keep total mixing time；
5) environment-friendly type clear-water concrete is obtained after mix.
Embodiment 2
A kind of environment-friendly type clear-water concrete, including Tunnel slag, cementitious material, additive, water and rubble.According to the following group
Weight proportion is divided to weigh raw material：Tunnel slag 724kg/m3, cement 335kg/m3, miberal powder 98kg/m3, silica flour 13.8kg/m3With essence
Subtle pearl 33.2kg/m3；Rubble 1059kg/m3；Composite water-reducing agent 5.9kg/m3, wherein polycarboxylate water-reducer 5.37kg/m3, disappear
Infusion 0.06kg/m3, air entraining agent 0.18kg/m3, tackifier 0.29kg/m3；Water 146kg/m3。
The preparation method of the present embodiment environment-friendly type clear-water concrete is as follows：
1) according to clear-water concrete related request and Concrete Design related specifications, environment-friendly type described in the present embodiment is determined
Clear-water concrete match ratio, wherein, Tunnel slag 724kg/m3, cement 335kg/m3, miberal powder 98kg/m3, silica flour 13.8kg/m3
With fine microballon 33.2kg/m3；Rubble 1059kg/m3；Composite water-reducing agent 5.9kg/m3, wherein polycarboxylate water-reducer 5.37kg/
m3, antifoaming agent 0.06kg/m3, air entraining agent 0.18kg/m3, tackifier 0.29kg/m3；Water 146kg/m3；
2) additive, cementitious material, 70% water, Tunnel slag are added in blender and stir 15s, stirred evenly；
3) rubble is added in blender and continues mix 15s；
4) remaining water is added in blender, total mixing time is 150s；
5) environment-friendly type clear-water concrete is obtained after mix.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is non-limiting, with reference to preferred embodiment to the present invention into
Detailed description is gone.It will be understood by those of ordinary skill in the art that can technical scheme of the present invention be modified or waited
With replacing, without departing from the spirit and scope of technical solution of the present invention, should all cover in scope of the presently claimed invention.
Claims (9)
1. a kind of environment-friendly type clear-water concrete, which is characterized in that
Including Machine-made Sand, cementitious material, additive, water and rubble,
It weighs raw material according to following weight proportion respectively：
2. environment-friendly type clear-water concrete according to claim 1, which is characterized in that
The Machine-made Sand is partly or entirely made of broken Tunnel slag,
Wherein, full water compression strength >=60MPa of the Tunnel slag, the fineness modulus that Machine-made Sand is used for after crushing are 2.3-
3.0, clay content is less than 2%, and clod content is less than 1%；
The broken Tunnel slag is without potential basic active.
3. environment-friendly type clear-water concrete according to claim 1, which is characterized in that
The cementitious material includes cement, miberal powder, silica flour and fine microballon,
Wherein, cement is not less than the portland cement or Portland cement of 42.5MPa for strength grade, and miberal powder is S95 ore deposits
Powder,
Silica flour is density size 2.0-2.3g/cm3, the common silica flour of 1000-4000 purposes,
Fine microballon is spherical, main component SiO2, grain size 1-3um.
4. environment-friendly type clear-water concrete according to claim 3, which is characterized in that
The cement, miberal powder, silica flour and fine microballon weight ratio be,
Cement：Miberal powder：Silica flour：Fine microballon=45-75%：20-40%：1-5%：1-8%.
5. environment-friendly type clear-water concrete according to claim 1, which is characterized in that the rubble is continuous grading rubble,
Its grain size is 5-25mm, and the stone contents of gill shape are less than 10%, and clay content is less than 1%, and clod content is less than 0.5%.
6. environment-friendly type clear-water concrete according to claim 1 or 5, which is characterized in that the rubble by Tunnel slag or
Ordinary gravel, which crushes, to be made.
7. environment-friendly type clear-water concrete according to claim 1, which is characterized in that the additive is polycarboxylate water-reducer
Or composite water-reducing agent, wherein, the weight ratio of the composite water-reducing agent is 85-100% polycarboxylate water-reducers：0.5-1.5% is defoamed
Agent：2-5% air entraining agents：3-7% tackifier.
8. environment-friendly type clear-water concrete according to claim 1, which is characterized in that the water is tap water or pure water.
A kind of 9. method for preparing environment-friendly type clear-water concrete as described in claim 1, which is characterized in that include the following steps：
Determine the match ratio of a variety of materials in the composition environment-friendly type clear-water concrete；
Additive, cementitious material, the water of 60%-70% and Machine-made Sand are added in blender and stir 10-20s, stirring is equal
It is even；
Then rubble is added in blender and continues mix 15-20s；
Remaining water is added in blender and continues to stir, it is 150s to keep total mixing time；
Environment-friendly type clear-water concrete is obtained after mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810060761.4A CN108249851A (en) | 2018-01-22 | 2018-01-22 | A kind of environment-friendly type clear-water concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810060761.4A CN108249851A (en) | 2018-01-22 | 2018-01-22 | A kind of environment-friendly type clear-water concrete and preparation method thereof |
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| CN108249851A true CN108249851A (en) | 2018-07-06 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206096A (en) * | 2018-11-19 | 2019-01-15 | 上海城建物资有限公司 | Clear-water concrete |
| CN109400021A (en) * | 2018-11-13 | 2019-03-01 | 江苏省安捷岩土工程有限公司 | A kind of lower shrinkage low viscosity super high strength concrete |
| CN109400073A (en) * | 2018-12-20 | 2019-03-01 | 石家庄市筑鑫混凝土有限公司 | A kind of environment-friendly type clear-water concrete and preparation method thereof |
| CN109503066A (en) * | 2018-11-19 | 2019-03-22 | 青岛崇置混凝土工程有限公司 | A kind of clear-water concrete and preparation method thereof |
| CN110627446A (en) * | 2019-10-18 | 2019-12-31 | 保利长大工程有限公司 | Economical and environment-friendly tunnel shotcrete and construction process |
| CN111285648A (en) * | 2020-02-20 | 2020-06-16 | 中交上海三航科学研究院有限公司 | High-durability low-viscosity high-strength machine-made sand concrete, preparation method and application |
| CN112456907A (en) * | 2020-12-03 | 2021-03-09 | 中交上海三航科学研究院有限公司 | White high-durability clear concrete and preparation method thereof |
| CN112521089A (en) * | 2020-12-07 | 2021-03-19 | 东南大学 | Full-hole slag high-performance concrete and preparation method thereof |
| CN113387635A (en) * | 2021-05-11 | 2021-09-14 | 贵州省公路工程集团有限公司 | Preparation method of tunnel tailing concrete with high stone powder content |
| CN114560664A (en) * | 2022-03-30 | 2022-05-31 | 湖北正茂新材料科技股份有限公司 | High-strength fluid-state fair-faced concrete and fair-faced concrete curbstone prepared from same |
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| CN107304117A (en) * | 2016-04-19 | 2017-10-31 | 中建西部建设新疆有限公司 | A kind of Wind turbines tower ultrahigh-strength self-compacting clear-water concrete |
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| CN107304117A (en) * | 2016-04-19 | 2017-10-31 | 中建西部建设新疆有限公司 | A kind of Wind turbines tower ultrahigh-strength self-compacting clear-water concrete |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400021A (en) * | 2018-11-13 | 2019-03-01 | 江苏省安捷岩土工程有限公司 | A kind of lower shrinkage low viscosity super high strength concrete |
| CN109503066B (en) * | 2018-11-19 | 2021-02-02 | 青岛崇置混凝土工程有限公司 | Fair-faced concrete and preparation method thereof |
| CN109503066A (en) * | 2018-11-19 | 2019-03-22 | 青岛崇置混凝土工程有限公司 | A kind of clear-water concrete and preparation method thereof |
| CN109206096A (en) * | 2018-11-19 | 2019-01-15 | 上海城建物资有限公司 | Clear-water concrete |
| CN109400073A (en) * | 2018-12-20 | 2019-03-01 | 石家庄市筑鑫混凝土有限公司 | A kind of environment-friendly type clear-water concrete and preparation method thereof |
| CN109400073B (en) * | 2018-12-20 | 2021-06-08 | 石家庄市筑鑫混凝土有限公司 | Environment-friendly fair-faced concrete and preparation method thereof |
| CN110627446A (en) * | 2019-10-18 | 2019-12-31 | 保利长大工程有限公司 | Economical and environment-friendly tunnel shotcrete and construction process |
| CN111285648A (en) * | 2020-02-20 | 2020-06-16 | 中交上海三航科学研究院有限公司 | High-durability low-viscosity high-strength machine-made sand concrete, preparation method and application |
| CN112456907A (en) * | 2020-12-03 | 2021-03-09 | 中交上海三航科学研究院有限公司 | White high-durability clear concrete and preparation method thereof |
| CN112521089A (en) * | 2020-12-07 | 2021-03-19 | 东南大学 | Full-hole slag high-performance concrete and preparation method thereof |
| CN113387635A (en) * | 2021-05-11 | 2021-09-14 | 贵州省公路工程集团有限公司 | Preparation method of tunnel tailing concrete with high stone powder content |
| CN113387635B (en) * | 2021-05-11 | 2022-10-11 | 贵州省公路工程集团有限公司 | Preparation method of tunnel tailing concrete with high stone powder content |
| CN114560664A (en) * | 2022-03-30 | 2022-05-31 | 湖北正茂新材料科技股份有限公司 | High-strength fluid-state fair-faced concrete and fair-faced concrete curbstone prepared from same |
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Application publication date: 20180706 |