CN107382277A - A kind of superfine composite modified agstone of concrete microdilatancy - Google Patents
A kind of superfine composite modified agstone of concrete microdilatancy Download PDFInfo
- Publication number
- CN107382277A CN107382277A CN201710700778.7A CN201710700778A CN107382277A CN 107382277 A CN107382277 A CN 107382277A CN 201710700778 A CN201710700778 A CN 201710700778A CN 107382277 A CN107382277 A CN 107382277A
- Authority
- CN
- China
- Prior art keywords
- agstone
- modified
- concrete
- composite modified
- superfine composite
- 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.)
- Pending
Links
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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
-
- 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
-
- 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
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
-
- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/103—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam the foaming being obtained by the introduction of a gas other than untreated air, e.g. nitrogen
-
- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6021—Extrusion moulding
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
A kind of superfine composite modified agstone of concrete microdilatancy, include the raw material of following parts by weight, lime stone chip is 75 90, and silicon ash is 36, and it is 10 20 to wait outer flyash, and lithium slag is 10 20；The material modified mode mixed in addition is excited to mix, the percentage by weight that each modified excitation material accounts for above-mentioned superfine composite modified agstone total amount is, desulfurated plaster is 2% 4%, and triethanolamine is 0.03% 0.05%, maltodextrin is 0.05% 0.15%, and sulphate aluminium cement is 2% 6%.The present invention lime stone chip, silicon ash, etc. that functional form modification excitation material is added in outer flyash, lithium slag is dual modified through superfine grinding and chemi-excitation, not only contribute to the raising of early stage and later stage activity, microdilatancy function is made it have simultaneously, enhances the anti-crack ability of concrete；The powder fluidity of superfine composite modified agstone is improved, makes it easier to gas conveying, and is not easy empty arch caking.
Description
Technical field
The present invention relates to concrete field, is exactly a kind of superfine composite modified lime stone of concrete microdilatancy
Powder.
Background technology
China is currently under infrastructure construction peak period, and construction scale is huge, and building structure is with armored concrete knot
Configuration formula is main body.The trend of Chinese commodity concrete in recent years is to keep annual production to be accounted at 2,400,000,000 tons or so substantially according to statistics
More than half of the world, although cement concrete industry is completely in the superfluous state of supply structure, mineral admixture is simultaneously
There is no production capacity surplus.Due to the domestic steel and iron industry also industrial waste residue resource such as serious production capacity surplus, flyash, slag distribution not
Uniformly, yield is reduced year by year, and the high activated admixture such as slag, flyash quantum of output is actually being reduced year by year, and the country is permitted
The conventional concrete mineral admixture in more areas has been extremely short raw material.Agstone is to produce lime stone rubble and machine
Fine sand caused by sandstone processed and aggregate chips are raw material, the fine powder obtained by further grinding process, because having in concrete
Good diminishing and filing effect and be concerned and apply.Research in recent years, it was demonstrated that agstone can be used as concrete mineral
The part of admixture is applied in concrete, can supplement the deficiency of flyash supply, but in current practical engineering application
In, also have limestone micropowder gas conveying effect is poor, easily empty arch caking and activity are stored in concrete mixing plant canister
Exponential quantity is low, the problem of bleeding, shrinkage cracking easily occurs in concrete in incorporation concrete.
The content of the invention
It is an object of the invention to provide a kind of superfine composite modified agstone of concrete microdilatancy, the agstone gas
Body conveying effect is good, and it is not in that empty arch lumps and as concrete mineral admixture to be stored in concrete mixing plant canister
Activity index value height be present, be avoided that the problem of bleeding, shrinkage cracking occurs in concrete.
The superfine composite modified agstone of concrete microdilatancy of the present invention, include the raw material of following parts by weight, lime
Stone chip is 75-90, silicon ash 3-6, and it is 10-20 to wait outer flyash, and lithium slag is 10-20；Excite the material modified side mixed in addition
Formula mixes, and the percentage by weight that each modified excitation material accounts for above-mentioned superfine composite modified agstone total amount is that desulfurated plaster is
2%-4%, triethanolamine 0.03%-0.05%, maltodextrin 0.05%-0.15%, sulphate aluminium cement 2%-6%.
Described lime stone chip maximum particle diameter is less than 2%, MB values no more than 2.36mm, clay content and is less than 0.50, calcium carbonate
Content is more than 90%；The silicon ash encryption stage, activity are not less than 105%；The outer flyash of the grade, loss on ignition are not more than 8%；It is described
Lithium slag, 28d activity indexs value are not more than 8% not less than 95%, sulfur trioxide content.
The preparation method of the superfine composite modified agstone of concrete microdilatancy of the present invention：By lime stone chip, lithium
Slag, etc. outer flyash, silicon ash and excite material modified by proportioning, use tumbling ball mill（Maximum pan feeding particle diameter is less than 5mm）
Under conditions of rotating speed is 48r/min, intergrinding 20-40min, the superfine composite modified agstone of microdilatancy is then obtained.
The concrete of the present invention is removed with the superfine composite modified agstone Specifications of microdilatancy meets GB/
Outside T30190-2013, its Blain specific surface is controlled in 600-700m2/ kg, angle of repose are less than or equal to 30 degree；Mix modified lime
The limited expansion rate that the cement mortar 28d activity indexs value of stone flour is more than or equal to 85%, 28d cement mortars is not less than 0.003%.
The present invention the superfine composite modified agstone of concrete microdilatancy, lime stone chip, silicon ash, etc. outer fine coal
It is dual modified by mechanical force superfine grinding and chemi-excitation that functional form modification excitation material is added in ash, lithium slag, not only favorably
In the raising of early stage and later stage activity, while microdilatancy function is made it have, enhance the anti-crack ability of concrete；It is obviously improved
The powder fluidity of superfine composite modified agstone, gas conveying is made it easier to, and be not easy empty arch caking；Mixed in concrete
The workability of concrete can be significantly improved by entering superfine composite modified agstone, make concrete be not easy to isolate bleeding.In the product
Substantial amounts of industrial residue is make use of, reduces pollution of the industrial residue to environment, while second class powered coal ash or replacement can be substituted completely
Part miberal powder, research on maximum utilized quantity is up to the 40% of binder materials, and product price is low compared with market second class powered coal ash, has significant society
Meeting, environment and economic benefit.
Embodiment
Embodiment 1：
A kind of superfine composite modified agstone of concrete microdilatancy, in parts by weight, by 77 parts of lime stone chips, 3 parts of silicon
Ash, the outer flyash such as 10 parts, 10 parts of lithium slags and modified exciting agent insert intergrinding 30min in tumbling ball mill, produce
To the superfine composite modified agstone of microdilatancy type.Wherein modified exciting agent is by weight percentage（Account for compound lime stone flour quality
Percentage）Meter, by 2% desulfurated plaster, 0.04% triethanolamine, 0.05% maltodextrin and 4% aluminium sulfate water
Mud forms.
Embodiment 2：
A kind of superfine composite modified agstone of concrete microdilatancy, in parts by weight, by 85 parts of lime stone chips, 6 parts of silicon
Ash, the outer flyash such as 5 parts, 4 parts of lithium slags and modified exciting agent insert intergrinding 35min in tumbling ball mill, that is, obtain
The superfine composite modified agstone of microdilatancy type.Wherein modified exciting agent is by weight percentage（Account for compound lime stone flour quality
Percentage）Meter, by 4% desulfurated plaster, 0.08% maltodextrin, 0.06% triethanolamine and 6% sulphate aluminium cement
Composition.
Above-described embodiment 1 and 2 is respectively applied in cement mortar and C30 concrete, with reference to GB/T30190《Lime stone
Powder concrete》、GB23439《Cement expansive material》And JGJ55-2011《Design of common concrete proportioning code》Etc. standard,
The related performance indicators for mixing the composite modified agstone cement mortar of above two and concrete are have detected respectively, are as a result seen respectively
Tables 1 and 2：
Table 1 mixes the correlated performance of the superfine composite modified agstone cement mortar of microdilatancy
| Embodiment | Fluidity ratio | 28d activity indexs | 28d limited expansion rates |
| 1 | 104 | 85% | 0.03% |
| 2 | 102 | 87% | 0.05% |
Table 2 mixes the correlated performance of the superfine composite modified agstone C30 concrete of microdilatancy
| Concrete Species | Water Mud/ kg | Coal Ash/ kg | Ore deposit Powder/ kg | Common stone Powder/kg | It is composite modified Stone flour/kg | It is glutinous It is poly- Property | Protect Water Property | 7d is strong Degree/ MPa | 28d is strong Degree/MPa | 28d limitations are swollen Swollen rate/% |
| Benchmark group | 220 | 70 | 60 | 0 | 0 | It is good | It is good | 21.5 | 34.3 | - |
| Contrast groups | 220 | 0 | 60 | 70 | 0 | Difference | Difference | 20.1 | 32.2 | - |
| Embodiment 1 | 220 | 0 | 60 | 0 | 70 | It is excellent | It is excellent | 23.6 | 36.8 | -0.001 |
| Embodiment 2 | 220 | 0 | 60 | 0 | 70 | It is excellent | It is excellent | 25.4 | 38.2 | 0.002 |
Claims (2)
1. a kind of superfine composite modified agstone of concrete microdilatancy, include the raw material of following parts by weight, lime stone chip
For 75-90, silicon ash 3-6, it is 10-20 to wait outer flyash, and lithium slag is 10-20；The material modified mode mixed in addition is excited to mix,
The percentage by weight that each modified excitation material accounts for above-mentioned superfine composite modified agstone total amount is, desulfurated plaster 2%-4%, three
Monoethanolamine is 0.03%-0.05%, maltodextrin 0.05%-0.15%, sulphate aluminium cement 2%-6%.
2. lime stone chip maximum particle diameter described in is less than 2%, MB values and contained less than 0.50, calcium carbonate no more than 2.36mm, clay content
Amount is more than 90%；The silicon ash encryption stage, activity are not less than 105%；The outer flyash of the grade, loss on ignition are not more than 8%；The lithium
Slag, 28d activity indexs value are not more than 8% not less than 95%, sulfur trioxide content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700778.7A CN107382277A (en) | 2017-08-16 | 2017-08-16 | A kind of superfine composite modified agstone of concrete microdilatancy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700778.7A CN107382277A (en) | 2017-08-16 | 2017-08-16 | A kind of superfine composite modified agstone of concrete microdilatancy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107382277A true CN107382277A (en) | 2017-11-24 |
Family
ID=60352531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700778.7A Pending CN107382277A (en) | 2017-08-16 | 2017-08-16 | A kind of superfine composite modified agstone of concrete microdilatancy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107382277A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128043A (en) * | 2019-05-27 | 2019-08-16 | 中建材中岩科技有限公司 | A kind of sub-micron active mixed material and preparation method thereof |
| CN110563369A (en) * | 2019-09-23 | 2019-12-13 | 中铁四局集团有限公司 | Modified limestone powder, preparation method thereof and concrete |
| CN111196697A (en) * | 2020-01-14 | 2020-05-26 | 重庆砼磊混凝土有限公司 | Preparation method of superfine composite modified limestone chip concrete |
| CN112079589A (en) * | 2020-09-15 | 2020-12-15 | 中建西部建设西南有限公司 | Modified lithium slag complex mineral admixture and preparation and application thereof |
| CN113417662A (en) * | 2021-08-06 | 2021-09-21 | 广东水电二局股份有限公司 | Tunnel excavation supporting method |
| CN115583812A (en) * | 2022-10-08 | 2023-01-10 | 江西申洪新型材料有限公司 | Composite modified bentonite and application thereof in concrete preparation |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671133A (en) * | 2009-09-30 | 2010-03-17 | 永州市中大特种水泥有限责任公司 | Modified low-alkalinity sulphoaluminate cement |
| CN102180612A (en) * | 2011-01-20 | 2011-09-14 | 葫芦岛市辽西混凝土外加剂有限公司 | Composite admixture for cement or high-performance concrete and preparation method thereof |
| CN102659336A (en) * | 2012-04-18 | 2012-09-12 | 中南大学 | Modified limestone powder-based mineral admixture and preparation method thereof |
| CN102701625A (en) * | 2012-05-16 | 2012-10-03 | 阳泉昌达混凝土搅拌站 | Preparation method of concrete-used composite admixture |
| CN103613303A (en) * | 2013-11-21 | 2014-03-05 | 中建商品混凝土有限公司 | Modified limestone powder high-performance mineral admixture and preparation method thereof |
| CN103833242A (en) * | 2014-01-17 | 2014-06-04 | 重庆欣材混凝土集团股份有限公司 | Retarding composite limestone powder admixture |
| CN104072007A (en) * | 2014-06-11 | 2014-10-01 | 广东省长大公路工程有限公司 | Superfine mineral micro powder grouting agent for duct grouting |
| CN104909638A (en) * | 2015-06-11 | 2015-09-16 | 宁夏盛远新型建材有限责任公司 | Composite mineral admixture for concrete |
| CN106698991A (en) * | 2016-11-30 | 2017-05-24 | 汤利发 | Concrete admixture and preparation method thereof |
-
2017
- 2017-08-16 CN CN201710700778.7A patent/CN107382277A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671133A (en) * | 2009-09-30 | 2010-03-17 | 永州市中大特种水泥有限责任公司 | Modified low-alkalinity sulphoaluminate cement |
| CN102180612A (en) * | 2011-01-20 | 2011-09-14 | 葫芦岛市辽西混凝土外加剂有限公司 | Composite admixture for cement or high-performance concrete and preparation method thereof |
| CN102180612B (en) * | 2011-01-20 | 2013-03-06 | 葫芦岛市辽西混凝土外加剂有限公司 | Composite admixture for cement or high-performance concrete and preparation method thereof |
| CN102659336A (en) * | 2012-04-18 | 2012-09-12 | 中南大学 | Modified limestone powder-based mineral admixture and preparation method thereof |
| CN102701625A (en) * | 2012-05-16 | 2012-10-03 | 阳泉昌达混凝土搅拌站 | Preparation method of concrete-used composite admixture |
| CN103613303A (en) * | 2013-11-21 | 2014-03-05 | 中建商品混凝土有限公司 | Modified limestone powder high-performance mineral admixture and preparation method thereof |
| CN103833242A (en) * | 2014-01-17 | 2014-06-04 | 重庆欣材混凝土集团股份有限公司 | Retarding composite limestone powder admixture |
| CN104072007A (en) * | 2014-06-11 | 2014-10-01 | 广东省长大公路工程有限公司 | Superfine mineral micro powder grouting agent for duct grouting |
| CN104909638A (en) * | 2015-06-11 | 2015-09-16 | 宁夏盛远新型建材有限责任公司 | Composite mineral admixture for concrete |
| CN106698991A (en) * | 2016-11-30 | 2017-05-24 | 汤利发 | Concrete admixture and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐国强: "《石灰石粉复掺低品质粉煤灰制备绿色混凝土技术》", 31 July 2015, 武汉大学出版社 * |
| 薛国龙 等: "《预拌干混砂浆成套设备的选用》", 31 October 2012, 光明日报出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110128043A (en) * | 2019-05-27 | 2019-08-16 | 中建材中岩科技有限公司 | A kind of sub-micron active mixed material and preparation method thereof |
| CN110563369A (en) * | 2019-09-23 | 2019-12-13 | 中铁四局集团有限公司 | Modified limestone powder, preparation method thereof and concrete |
| CN110563369B (en) * | 2019-09-23 | 2021-07-30 | 中铁四局集团有限公司 | Modified limestone powder, preparation method thereof and concrete |
| CN111196697A (en) * | 2020-01-14 | 2020-05-26 | 重庆砼磊混凝土有限公司 | Preparation method of superfine composite modified limestone chip concrete |
| CN112079589A (en) * | 2020-09-15 | 2020-12-15 | 中建西部建设西南有限公司 | Modified lithium slag complex mineral admixture and preparation and application thereof |
| CN113417662A (en) * | 2021-08-06 | 2021-09-21 | 广东水电二局股份有限公司 | Tunnel excavation supporting method |
| CN115583812A (en) * | 2022-10-08 | 2023-01-10 | 江西申洪新型材料有限公司 | Composite modified bentonite and application thereof in concrete preparation |
| CN115583812B (en) * | 2022-10-08 | 2024-01-23 | 江西申洪新型材料有限公司 | Composite modified bentonite and application thereof in preparing concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020101143A4 (en) | A Method For Preparing The Fast-Hardening Early-Strength High-Performance All-Solid Waste Concrete | |
| CN106365578B (en) | The method for preparing construction material using ardealite | |
| CN107382277A (en) | A kind of superfine composite modified agstone of concrete microdilatancy | |
| CN102765889B (en) | Preparation method for tailing barren rock-made high-strength concrete containing coal ash | |
| CN101767972B (en) | Mine tailing sand brick and preparation method thereof | |
| CN100506738C (en) | Concrete composition containing ultra-fine carbonate rock powder and preparation method thereof | |
| CN102234191A (en) | Early strength mine filling cementitious material | |
| CN113135727B (en) | Red mud-based material for roadbed water stabilization layer and preparation method thereof | |
| CN101172788A (en) | Method for producing steel-scoria and mine-scoria cement by using steel-scoria ball milled waste mud | |
| CN102718423B (en) | Preparation method of low-grade activated coal ash composite material | |
| CN102924005A (en) | Cementing materials with micro-expansion effect for mine filling | |
| CN101792274A (en) | Calcium-silicon-aluminum property regulating material for carrying out on-line high-temperature reconstruction on medium-alkalinity steel slag and application thereof | |
| CN102887677B (en) | Method for producing gravity cementing filler from secondary quenched slag after nickel residue iron extraction | |
| CN107986648A (en) | Portland slag cement and preparation method thereof | |
| CN110240434A (en) | A kind of titanium slag-phosphorus slag powder composite blend and its preparation method and application method | |
| CN101348335A (en) | Method for preparing special concrete for high-performance concrete from magnet aposand stone iron tailings | |
| CN105669072A (en) | High performance concrete composite admixture produced by high silicon iron tailings | |
| CN107473613B (en) | A kind of cement and preparation method thereof using industrial solid-state castoff production | |
| WO2008138170A1 (en) | Dry powder mortar made from steel slag and a method for producing it | |
| CN114873961B (en) | Molybdenum tailing dry-mixed mortar and application method thereof | |
| CN114591055A (en) | Steel slag aggregate low-carbon road concrete doped with coal-to-oil residue and preparation method thereof | |
| CN110282898B (en) | High-performance mineral admixture and application thereof in concrete | |
| CN112209640A (en) | Method for controlling setting time of cement produced by desulfurized gypsum | |
| CN108298929A (en) | The method that quotient's concrete waste water wet-milling prepares low-clinker cement slurry | |
| CN104016601A (en) | Method for producing cement cementing material through industrial waste residue sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
|
| RJ01 | Rejection of invention patent application after publication |