CN100560532C - Steel slag powder concrete of active powder - Google Patents
Steel slag powder concrete of active powder Download PDFInfo
- Publication number
- CN100560532C CN100560532C CNB2007100990919A CN200710099091A CN100560532C CN 100560532 C CN100560532 C CN 100560532C CN B2007100990919 A CNB2007100990919 A CN B2007100990919A CN 200710099091 A CN200710099091 A CN 200710099091A CN 100560532 C CN100560532 C CN 100560532C
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- rpc
- steel
- water
- powder
- slag powder
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- 239000000843 powder Substances 0.000 title claims abstract description 62
- 239000002893 slag Substances 0.000 title claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 18
- 239000010959 steel Substances 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 60
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 34
- 238000009628 steelmaking Methods 0.000 claims abstract description 32
- 239000004568 cement Substances 0.000 claims abstract description 24
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 14
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010703 silicon Substances 0.000 claims abstract description 10
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims abstract description 7
- 239000002956 ash Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 21
- 238000002360 preparation method Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000007858 starting material Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000011083 cement mortar Substances 0.000 description 22
- 238000003756 stirring Methods 0.000 description 22
- 238000012423 maintenance Methods 0.000 description 14
- 239000002253 acid Substances 0.000 description 12
- 239000004576 sand Substances 0.000 description 12
- 239000010456 wollastonite Substances 0.000 description 12
- 229910052882 wollastonite Inorganic materials 0.000 description 12
- 239000011398 Portland cement Substances 0.000 description 11
- 230000015271 coagulation Effects 0.000 description 11
- 238000005345 coagulation Methods 0.000 description 11
- 230000036571 hydration Effects 0.000 description 11
- 238000006703 hydration reaction Methods 0.000 description 11
- 239000004570 mortar (masonry) Substances 0.000 description 11
- 238000000465 moulding Methods 0.000 description 11
- 238000005303 weighing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000012360 testing method Methods 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
- C04B28/08—Slag cements
- C04B28/082—Steelmaking slags; Converter slags
-
- 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
Steel slag powder concrete of active powder belongs to concrete field.Common RPC uses expensive starting material such as silicon ash and quartz sand, makes cost too high, has hindered the promotion and application of this type material.The present invention is characterised in that, comprises following material: steel-making slag powder, silicon ash, particle diameter are that quartz sand, the particle diameter of 80 μ m～100 μ m is that 5 μ m～25 μ m silica powders, water-reducing rate reach 15%～30% high efficiency water reducing agent, steel fiber and water.The RPC of the present invention preparation intensity of comparing with common RPC is low slightly, but is more or less the same, and can reach the intensity that RPC requires, under the identical water cement ratio condition, and the general flowing property of steel-making slag powder RPC good than common RPC.This RPC is raw material with the trade waste, can reduce the cost of RPC, has also saved resource by utilization of waste material, has realized requirements of green environmental protection.
Description
Technical field
The present invention relates to a kind of type material, use trade waste---slag is worn into fine powder and is prepared RPC (RPC) as gelling material.
Background technology
RPC is early 1990s, the department of the Chinese Academy of Sciences of BOUYGUES section of France imitates " efficient close cement homogeneous system " (DSP) material with the research group headed by the Pierre Richard, coarse aggregate is rejected, according to the dense packing principle, quartz sand with maximum particle diameter 400 μ m is aggregate, prepares the cement-base composite material of intensity and other excellent performance.Owing to increased the fineness and the reactive behavior of component, so it is called as RPC (Reactive Powder Concrete is called for short RPC).RPC has very high intensity (200～800MPa).
The raw material of common RPC is cement, water, quartz sand, silicon ash, silica powder, high efficiency water reducing agent and steel fiber.Owing to use expensive starting material such as silicon ash and quartz sand, make cost too high, hindered the promotion and application of this type material.Therefore, seeking and adopt cheap starting material also is an emphasis of RPC research.Prove that by microcosmos experiment mainly by not aquation completely form mutually by cement clinker particle, reactive powder particle (silicon ash etc.) and aquation jel product etc. for the matrix of RPC.Hence one can see that, because the water cement ratio of RPC is very low, gelling material is can not aquation complete, and not every gelling material has all been brought into play effect.The present invention is from this point, considers that mineral composition on probation is similar to cement clinker, and gelation activity prepares RPC than the low steel-making slag powder of cement as the gelling material replacement cement of RPC, and successfully prepares the higher steel-making slag powder RPC of intensity.This RPC is raw material with the trade waste, can reduce the cost of RPC, has also saved resource by utilization of waste material, has realized requirements of green environmental protection.
Summary of the invention
The present invention utilizes the steel-making slag powder place of cement to prepare RPC.
The steel-making slag powder RPC of the present invention preparation is characterized in that it is composited by following material: steel-making slag powder, silicon ash, quartz sand (80～100 μ m), silica powder (5～25 μ m), (difference of high efficiency water reducing agent and ordinary water-reducing agent is the height of water-reducing rate to high efficiency water reducing agent, the water-reducing rate of high efficiency water reducing agent can reach 15% ~ 30%, common high efficiency water reducing agent has naphthalene series high-efficiency water-reducing agent, polycarboxylic acid series high efficiency water reducing agent), steel fiber and water.
The steel-making slag powder RPC of the present invention's preparation is characterized in that: steel-making slag powder partly or entirely place of cement prepares RPC.
The steel-making slag powder RPC of the present invention's preparation is characterized in that: with the steam-cured mode of High Temperature High Pressure RPC is carried out maintenance again after adopting hot water maintenance and hot water maintenance.
The component that this RPC comprises and each constituent mass proportioning following (except water and steel fiber, other component is the ratio with the quality of steel-making slag powder):
Steel-making slag powder water cement ratio wollastonite English sand silica powder high efficiency water reducing agent steel fiber *
1 1.9～2.4 0.25～0.35 0.8～1.2 0.27～0.37 0.015～0.025 0～0.03
* volume content of steel fibers is meant the solid matter in steel fiber and the raw material, i.e. the ratio of the quality sum of steel-making slag powder, silicon ash, quartz sand and silica powder.
Above component ratio is to adjust on the basis of existing technology and come.
Beneficial effect of the present invention is as follows:
1, under the same terms, the RPC of the steel-making slag powder preparation intensity of comparing with common RPC is low slightly, but is more or less the same, and can reach the intensity of RPC requirement.Under the identical water cement ratio condition, the flowing property of general steel-making slag powder RPC is better than common RPC's, thereby has improved the serviceability of RPC.
2, steel-making slag powder RPC also can be applied to make prefabricated components, be used for motorway or airfield runway, manufacturing pressure pipeline and corrosive medium transport pipe, make low-activity nuke rubbish tank etc.
3, the used raw material of this PRC is a trade waste, can reduce the production cost of RPC, can improve the problem that slag is stacked simultaneously, and its social benefit is obvious.
Below by the testing data of some examples strength property, and compare with RPC that common 42.5 silicate cements are made with the formal specification steel-making slag powder RPC of the present invention of form.
Embodiment
Embodiment 1:
Each solid materials is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.25 1.1 0.37 0.019
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into the maintaining box mark after the moulding and support form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation), put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 2:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent steel fiber
1 1.9 0.25 1.1 0.37 0.015 0.03
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 3:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 2.4 0.25 1.1 0.37 0.019
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 4:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 2.0 0.25 1.1 0.37 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 5:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.3 1.1 0.32 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 6:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.35 1.1 0.27 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 7:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.25 0.8 0.37 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 8:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.25 1.2 0.37 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 9:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent
1 1.9 0.25 1.1 0.37 0.025
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 10:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent steel fiber
1 1.9 0.25 1.1 0.37 0.015 0.015
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then.
Embodiment 11:
Each raw material is pressed following proportioning weighing
Steel-making slag powder water cement ratio wollastonite English sand silica powder polycarboxylic acid series high efficiency water reducing agent steel fiber
1 1.9 0.25 1.1 0.37 0.015 0.03
Stirred 3 minutes material is dried at a slow speed earlier with planetary cement mortar mixer, pour water reducer and water then into, stir at a slow speed after 3 minutes and stirred fast again 5 minutes.Be cast in after the stirring in the cement mortar three joint-trial moulds of 40mm * 40mm * 160mm, on shaking table, shook three minutes.Put into maintaining box form removal after 48 hours (because the slag hydration rate is slower, will prolong time of coagulation) after the moulding, put into 90 ℃ of water-bath maintenances 48 hours then, steam-cured 9 hours of final high temperature.High-temperature steam curing system: 197 ℃ of top temperatures, 80 kilograms of top pressures; Pressurization heats up in two hours, to 197 ℃ and 80 kilograms, keeps 5 hours under this temperature, pressure then, then uses 2 hours decrease temperature and pressure again.Treat that specimen temperature reduces to room temperature and survey its intensity again.
Table 1 compressive strength of specimens that to be the present invention prepare by embodiment 1 proportioning with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 2 compressive strength of specimens that to be the present invention prepare by embodiment 2 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 3 compressive strength of specimens that to be the present invention prepare by embodiment 3 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 4 compressive strength of specimens that to be the present invention prepare by embodiment 4 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 5 compressive strength of specimens that to be the present invention prepare by embodiment 5 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 6 compressive strength of specimens that to be the present invention prepare by embodiment 6 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 7 compressive strength of specimens that to be the present invention prepare by embodiment 7 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 8 compressive strength of specimens that to be the present invention prepare by embodiment 8 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 9 compressive strength of specimens that to be the present invention prepare by embodiment 9 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 10 compressive strength of specimens that to be the present invention prepare by embodiment 10 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 11 compressive strength of specimens that to be the present invention prepare by embodiment 11 proportionings with the RPC that makes with 42.5 ordinary Portland cements and the comparison of mortar fluidity.
Table 1
Table 2
Table 3
Table 4
Table 5
Table 6
Table 7
Table 8
Table 9
Table 10
Table 11
Claims (1)
1, a kind of steel slag powder concrete of active powder, it is characterized in that it consists of: steel-making slag powder, silicon ash, particle diameter are that quartz sand, the particle diameter of 80 μ m～100 μ m is that 5 μ m～25 μ m silica powders, water-reducing rate reach 15%～30% high efficiency water reducing agent, steel fiber and water; This concrete water cement ratio is 1.9～2.4, and volume content of steel fibers is 0～0.03, and volume content of steel fibers is meant the solid matter in steel fiber and the raw material, i.e. the ratio of the quality sum of steel-making slag powder, silicon ash, quartz sand and silica powder; With the quality of steel-making slag powder is 1 to be benchmark, the quality of other component and steel-making slag powder such as down: silicon ash 0.25～0.35, quartz sand 0.8～1.2, silica powder 0.27～0.37, high efficiency water reducing agent 0.015～0.025.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100990919A CN100560532C (en) | 2007-05-11 | 2007-05-11 | Steel slag powder concrete of active powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100990919A CN100560532C (en) | 2007-05-11 | 2007-05-11 | Steel slag powder concrete of active powder |
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| Publication Number | Publication Date |
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| CN101050090A CN101050090A (en) | 2007-10-10 |
| CN100560532C true CN100560532C (en) | 2009-11-18 |
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| CNB2007100990919A Expired - Fee Related CN100560532C (en) | 2007-05-11 | 2007-05-11 | Steel slag powder concrete of active powder |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560082B (en) * | 2008-04-16 | 2012-11-21 | 柳州欧维姆机械股份有限公司 | Ultrahigh-strength active powder concrete and preparation method thereof |
| CN102001846B (en) * | 2010-03-29 | 2013-05-15 | 中国铁道科学研究院铁道建筑研究所 | Mineral polymeric material based active powder concrete and preparation method thereof |
| CN102775099B (en) * | 2012-07-30 | 2014-06-18 | 北京工业大学 | Economic active powder concrete mixed superfine cement |
| CN104058656B (en) * | 2014-05-30 | 2016-02-10 | 蚌埠华东石膏有限公司 | A kind of rust protection concrete and preparation method thereof |
| CN105236847B (en) * | 2015-08-28 | 2017-12-26 | 广州华隧威预制件有限公司 | A kind of activity of steel slag powder concrete and preparation method thereof |
| CN105666687B (en) * | 2015-12-30 | 2018-05-18 | 中交一公局桥隧工程有限公司 | Prestressing force Reactive Powder Concrete box girder construction technique |
| CN107618094A (en) * | 2017-10-11 | 2018-01-23 | 北京惠诚基业工程技术有限责任公司 | A kind of preparation method of RPC material and its cast-in-site |
| CN108481550B (en) * | 2018-03-22 | 2021-10-01 | 长沙理工大学 | UHPC stirring method and UHPC mixture |
| CN109437766B (en) * | 2018-12-25 | 2021-09-21 | 山东华鉴工程检测有限公司 | Reactive powder concrete suitable for road and bridge engineering |
-
2007
- 2007-05-11 CN CNB2007100990919A patent/CN100560532C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| 掺矿渣活性粉末混凝土配制技术的研究. 施韬等.材料科学与工程学报，第23卷第6期. 2005 |
| 掺矿渣活性粉末混凝土配制技术的研究. 施韬等.材料科学与工程学报，第23卷第6期. 2005 * |
| 活性粉末混凝土(R PC) 的性能研究及应用前景. 吴炎海等.福建建筑，第4期. 2002 |
| 活性粉末混凝土(R PC) 的性能研究及应用前景. 吴炎海等.福建建筑，第4期. 2002 * |
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| CN101050090A (en) | 2007-10-10 |
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