CN105217981B - A kind of environmentally friendly cement mixing material, cement and application - Google Patents
A kind of environmentally friendly cement mixing material, cement and application Download PDFInfo
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- CN105217981B CN105217981B CN201510543776.2A CN201510543776A CN105217981B CN 105217981 B CN105217981 B CN 105217981B CN 201510543776 A CN201510543776 A CN 201510543776A CN 105217981 B CN105217981 B CN 105217981B
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- 239000004568 cement Substances 0.000 title claims abstract description 84
- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000002156 mixing Methods 0.000 title claims abstract description 29
- 239000002893 slag Substances 0.000 claims abstract description 40
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 24
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 24
- 239000010881 fly ash Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 19
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 239000000292 calcium oxide Substances 0.000 claims description 23
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 23
- 239000000377 silicon dioxide Substances 0.000 claims description 22
- 229910052681 coesite Inorganic materials 0.000 claims description 21
- 229910052906 cristobalite Inorganic materials 0.000 claims description 21
- 229910052682 stishovite Inorganic materials 0.000 claims description 21
- 229910052905 tridymite Inorganic materials 0.000 claims description 21
- 235000019738 Limestone Nutrition 0.000 claims description 9
- 239000010440 gypsum Substances 0.000 claims description 9
- 229910052602 gypsum Inorganic materials 0.000 claims description 9
- 239000006028 limestone Substances 0.000 claims description 9
- 239000002956 ash Substances 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 239000002910 solid waste Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000010883 coal ash Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 229910021534 tricalcium silicate Inorganic materials 0.000 description 1
- 235000019976 tricalcium silicate Nutrition 0.000 description 1
Classifications
-
- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to building material technical field, especially a kind of application of environmentally friendly cement mixing material, the cement made of this mixing material and cement.The environmentally friendly cement mixing material includes following components by weight: 5-15 parts of slag micro powder, 2-15 parts of Desulphurization, 4-15 parts of clinker, 3-15 parts of flyash.Contain more CaO, SiO in steel slag, Desulphurization, clinker and flyash2、Al2O3、Fe2O3, it is similar to cement composition, it can be used as the preparation that environmentally friendly cement mixing material is applied to cement.The present invention is using steel slag, Desulphurization, clinker and flyash as a kind of environmentally friendly cement mixing material, increase the Processes For Effective Conversion of solid waste steel slag, Desulphurization, clinker and flyash, the cost of manufacture of cement, the cement good combination property of production are reduced simultaneously.
Description
Technical field
The present invention relates to building material technical field, especially a kind of environmentally friendly cement mixing material is made of this mixing material
Cement and cement application.
Background technique
2014, the total output of Chinese cement up to 24.76 hundred million tons, accounted for 50% of world wide production or more.The former material of cement
Material is lime stone and clay, is non-renewable resources.Meanwhile going deep into process of industrialization, annual industrial waste produce
Raw amount is huge, and land occupation causes environmental pollution.If carrying out replacing partial cement for trade waste as cement mixture,
It not only can reduce consumption of the manufacture of cement to non-renewable resources, reduce cement cost, and trade waste can be improved
Added value, accomplish to turn waste into wealth, meet national sustainable development necessary requirement.
Steel slag, Desulphurization, clinker, flyash etc. are main large industrial solid castoff, for a long time, these works
The discarded stacking of industry solid waste not only occupies large stretch of industry and agricultural land, causes serious pollution to environment,
A large amount of resource is wasted, and affects the sustainable development of related industries solid waste industry.Steel slag is steelmaking process
The slag of middle discharge, is the primary solids by-product of smelting industry, and chemical component and mineral composition contain close to clinker
There are a small amount of dicalcium silicate and tricalcium silicate, the substance with potential gelation activity；Desulphurization is generated in flue gas desulfurization course
Desulfurizing byproduct, wherein the substances such as calcium sulfate contained are close with cement main ingredient；Clinker is in heat power plant boiler
The industrial residue of generation, annual output crosses hundred million tons, but makes a low multiple use, wherein a large amount of activity SiO contained2、Al2O3It is silicon
The primary chemical constituent of acid salt cement；Flyash is the solid waste of generation during coal burning, wherein contain
With the calcium hydroxide in hydrolysis product of cement secondary reaction of hydration, CSH, CAH eka-silicon of generation can occur for silica and aluminium oxide
The later strength and durability of cement-based material can be improved in hydrochlorate mineral.Due to containing in steel slag, Desulphurization, clinker and flyash
By with the potential gelation activity substance of hydration reaction is formed or can occurred similar in cement constituent, therefore can be used as the mixed of cement
Condensation material improves cement output, reduces manufacture of cement cost, adjusts strength of cement grade, improves cement performance and quality, comprehensive
It using trade waste, reduces environmental pollution, realizes the ecology of cement industry.
Summary of the invention
The purpose of the present invention is to provide a kind of environmentally friendly cement mixing materials, can solve industrial solid castoff utilization and ask
Topic.
A kind of environmentally friendly cement mixing material, the mixing material include following components by weight:
5-15 parts of slag micro powder, 2-15 parts of Desulphurization, 4-15 parts of clinker, 3-15 parts of flyash.
Further, the mixing material includes following components by weight:
8-12 parts of slag micro powder, 4-12 parts of Desulphurization, 8-13 parts of clinker, 5-13 parts of flyash.
The slag micro powder is that the steel slag of quenching technique production is made through magnetic separation, fine grinding process.
The slag micro powder, free calcium oxide content≤3%, apparent density >=2.5t/m3, water content≤1%, grain
The moiety by weight part of degree less than 0.075mm accounts for 75-100%, and hydrophilic coefficient is less than 1.
The Desulphurization is semi-dry desulphurization ash, and ingredient includes following components by weight:
CaO45-60 parts, SO33-15 parts, MgO, SiO2、Al2O3, FeO and K2The content of O is respectively less than 2 parts.
The clinker includes following components by weight:
SiO237-61 parts, Al2O315-36 parts, Fe2O35-24 parts, CaO2-10 parts.
The flyash includes following components by weight:
SiO231-60 parts, CaO11-24 parts, Al2O312-36 parts, Fe2O32-8 parts, SO30-6 parts.
Cement made of the environmentally friendly cement mixing material, the cement include the material of following parts by weight meter: cement is ripe
45-60 parts, 10-20 parts of lime stone, 2-7 parts of the natural gypsum, 14-60 parts of environmentally friendly cement mixing material of material.
Further, cement made of the environmentally friendly cement mixing material, the cement include the object of following parts by weight meter
Material: 48-55 parts of clinker, 12-16 parts of lime stone, 3-6 parts of the natural gypsum, 25-50 parts of environmentally friendly cement mixing material.
Application of the cement in architectural engineering and road pavement.
A kind of environmentally friendly cement mixing material, cement and application provided by the invention, have the beneficial effect that:
1, contain more CaO, SiO in steel slag, Desulphurization, clinker and flyash2、Al2O3、Fe2O3, with cement composition phase
Seemingly, it can be used as the preparation that mixing material is applied to cement, increase solid waste steel slag, Desulphurization, clinker and flyash
Processes For Effective Conversion not only has considerable economic benefit, but also reduces pollution of the solid waste to environment, realizes ring
Border benefit, economic benefit and social benefit win-win.
2, the cost for reducing manufacture of cement, the cement performance produced is good, and quality is high, and cement prepared by the present invention is solidifying
Knot time, stability and bending and compressive strength are all satisfied the requirement in " common portland cement " (GB175-2007).
Specific embodiment
The present invention is further illustrated below with reference to embodiment, but the scope of protection of present invention is not limited to implement
The range of example statement.
Embodiment 1
Take 55 parts of certain cement plant clinker, 4 parts of the natural gypsum, 2 parts of certain steel mill's semi-dry desulphurization ash, 15 parts of slag micro powder, stone
15 parts of lime stone, 6 parts of certain plant slag, is mixed with PC32.5 cement by 3 parts of flyash, test its setting time, stability and
3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m3, water content 0.8%, particle size range is small
80% is accounted in the part 0.075mm, appearance is agglomerated without granule, hydrophilic coefficient 0.9.
In Desulphurization component: CaO content is 45 parts, SO3Content is 13 parts, and content of MgO is 1 part, SiO2Content be 1 part,
Al2O3Content is 1.5 parts, FeO content is 1 part, K2O content is 1.2 parts.
In slag components: SiO2Content is 50 parts, Al2O3Content is 30 parts, Fe2O3Content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO2Content is 40 parts, and CaO content is 20 parts, Al2O3Content is 20 parts, Fe2O3Content is 4 parts,
SO3Content is 3 parts.
Embodiment 2
Take 55 parts of certain cement plant clinker, 4 parts of the natural gypsum, 4 parts of certain steel mill's semi-dry desulphurization ash, 15 parts of slag micro powder, stone
13 parts of lime stone, 6 parts of certain plant slag, is mixed with PC32.5 cement by 3 parts of flyash, test its setting time, stability and
3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1.5%, apparent density 2.9t/m3, water content 0.7%, particle size range
90% is accounted for less than the part 0.075mm, appearance is agglomerated without granule, hydrophilic coefficient 0.9.
In Desulphurization component: CaO content is 50 parts, SO3Content is 12 parts, and content of MgO is 1.5 parts, SiO2Content be 1 part,
Al2O3Content is 1.5 parts, FeO content is 1 part, K2O content is 1.2 parts.
In slag components: SiO2Content is 50 parts, Al2O3Content is 30 parts, Fe2O3Content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO2Content is 40 parts, and CaO content is 20 parts, Al2O3Content is 20 parts, Fe2O3Content is 4 parts,
SO3Content is 3 parts.
Embodiment 3
Take 55 parts of certain cement plant clinker, 5 parts of the natural gypsum, 4 parts of certain steel mill's semi-dry desulphurization ash, 9 parts of slag micro powder, lime
15 parts of stone, 6 parts of certain plant slag 6 parts of flyash, is mixed with PC32.5 cement, tests its setting time, stability and 3d
With 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m3, water content 0.8%, particle size range is small
88% is accounted in the part 0.075mm, appearance is agglomerated without granule, hydrophilic coefficient 0.9.
In Desulphurization component: CaO content is 45 parts, SO3Content is 8 parts, and content of MgO is 1 part, SiO2Content be 1 part,
Al2O3Content is 1.5 parts, FeO content is 1 part, K2O content is 1.2 parts.
In slag components: SiO2Content is 50 parts, Al2O3Content is 25 parts, Fe2O3Content is 23 parts, and CaO content is 6 parts.
In fine coal ash content: SiO2Content is 40 parts, and CaO content is 20 parts, Al2O3Content is 25 parts, Fe2O3Content is 7 parts,
SO3Content is 5 parts.
Embodiment 4
Take 55 parts of certain cement plant clinker, 3 parts of the natural gypsum, 8 parts of certain steel mill's semi-dry desulphurization ash, 12 parts of slag micro powder, stone
15 parts of lime stone, 4 parts of certain plant slag, is mixed with PC32.5 cement by 3 parts of flyash, test its setting time, stability and
3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m3, water content 0.8%, particle size range is small
80% is accounted in the part 0.075mm, appearance is agglomerated without granule, hydrophilic coefficient 0.9.
In Desulphurization component: CaO content is 45 parts, SO3Content is 10 parts, and content of MgO is 1 part, SiO2Content be 1 part,
Al2O3Content is 1.4 parts, FeO content is 1 part, K2O content is 1.2 parts.
In slag components: SiO2Content is 50 parts, Al2O3Content is 30 parts, Fe2O3Content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO2Content is 40 parts, and CaO content is 22 parts, Al2O3Content is 20 parts, Fe2O3Content is 4 parts,
SO3Content is 3 parts.
Embodiment 5
Take 55 parts of certain cement plant clinker, 6 parts of the natural gypsum, 8 parts of certain steel mill's semi-dry desulphurization ash, 10 parts of slag micro powder, stone
12 parts of lime stone, 6 parts of certain plant slag, is mixed with PC32.5 cement by 3 parts of flyash, test its setting time, stability and
3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m3, water content 0.8%, particle size range is small
86% is accounted in the part 0.075mm, appearance is agglomerated without granule, hydrophilic coefficient 0.8.
In Desulphurization component: CaO content is 45 parts, SO3Content is 6 parts, and content of MgO is 1 part, SiO2Content be 1 part,
Al2O3Content is 1.5 parts, FeO content is 1 part, K2O content is 1.2 parts.
In slag components: SiO2Content is 58 parts, Al2O3Content is 30 parts, Fe2O3Content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO2Content is 40 parts, and CaO content is 20 parts, Al2O3Content is 20 parts, Fe2O3Content is 4 parts,
SO3Content is 3 parts.
The performance test of cement in the various embodiments described above the results are shown in Table 1.It is prepared as shown in Table 1 using the invention patent
Cement setting time, stability and bending and compressive strength be all satisfied in " common portland cement " (GB175-2007) and want
It asks.
The performance of cement in each embodiment of table 1
The above embodiments are only the preferred technical solution of the present invention, and are not construed as limitation of the invention, this Shen
Please in embodiment and embodiment in feature in the absence of conflict, can mutual any combination.Protection model of the invention
The technical solution that should be recorded with claim is enclosed, the equivalent replacement side of technical characteristic in the technical solution recorded including claim
Case is protection scope.Equivalent replacement i.e. within this range is improved, also within protection scope of the present invention.
Claims (6)
1. a kind of using cement made of environmentally friendly cement mixing material, which is characterized in that the cement includes following parts by weight meter
Material: 45-60 parts of clinker, 10-20 parts of lime stone, 2-7 parts of the natural gypsum, 14-60 parts of environmentally friendly cement mixing material；It is described mixed
Material is closed to be grouped as by following group by weight:
5-15 parts of slag micro powder, 2-15 parts of Desulphurization, 4-15 parts of clinker, 3-15 parts of flyash；
The slag micro powder is that the steel slag of quenching technique production is made through magnetic separation, fine grinding process；
The slag micro powder, free calcium oxide content≤3%, apparent density >=2.5t/m3, water content≤1%, granularity is less than
Moiety by weight part of 0.075mm accounts for 75-100%, and hydrophilic coefficient is less than 1；
The Desulphurization is semi-dry desulphurization ash, and ingredient includes following components by weight:
CaO45-60 parts, SO33-15 parts, MgO, SiO2、Al2O3, FeO and K2The content of O is respectively less than 2 parts.
2. according to right want 1 described in using cement made of environmentally friendly cement mixing material, which is characterized in that the cement include with
The material of lower parts by weight meter: 48-55 parts of clinker, 12-16 parts of lime stone, 3-6 parts of the natural gypsum, environmentally friendly cement mixing material
25-50 parts.
3. application of the cement of any of claims 1 or 2 in architectural engineering and road pavement.
4. according to claim 1 or 2 using cement made of environmentally friendly cement mixing material, which is characterized in that environmentally friendly cement
Mixing material is made of following following components by weight:
8-12 parts of slag micro powder, 4-12 parts of Desulphurization, 8-13 parts of clinker, 5-13 parts of flyash.
5. according to claim 4 using cement made of environmentally friendly cement mixing material, it is characterised in that: environmentally friendly cement mixing
Clinker includes following components by weight in material:
SiO237-61 parts, Al2O315-36 parts, Fe2O35-24 parts, CaO2-10 parts.
6. according to claim 4 using cement made of environmentally friendly cement mixing material, it is characterised in that: environmentally friendly cement mixing
Flyash in material includes following components by weight:
SiO231-60 parts, CaO11-24 parts, Al2O312-36 parts, Fe2O32-8 parts, SO30-6 parts.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105948608A (en) * | 2016-04-16 | 2016-09-21 | 南通蛇类治疗研究所 | Ecologically healthy environment-friendly cement |
| CN106007649A (en) * | 2016-05-25 | 2016-10-12 | 句容联众科技开发有限公司 | Acid-proof cement admixture |
| CN108002769A (en) * | 2016-10-27 | 2018-05-08 | 鞍钢股份有限公司 | Concrete prepared from desulfurization by-products |
| CN110526604A (en) * | 2019-10-17 | 2019-12-03 | 天津市金晟华水泥股份有限公司 | A kind of energy saving cement and preparation method thereof |
| CN110627387A (en) * | 2019-11-12 | 2019-12-31 | 攀枝花钢城集团有限公司 | Cement prepared by taking refining furnace tailings as cement admixture |
| CN111196689A (en) * | 2020-01-11 | 2020-05-26 | 登封市嵩基水泥有限公司 | Energy-saving cement and preparation method thereof |
| CN113603453A (en) * | 2021-08-02 | 2021-11-05 | 新疆硅质耐火材料有限公司 | Method for preparing imitation Song pottery brick from refractory clay tailings, steel slag and desulfurized ash |
| CN113896465B (en) * | 2021-10-22 | 2022-10-25 | 广东同创科鑫环保有限公司 | Slag-based guniting material and construction method of guniting pile |
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| CN102173612A (en) * | 2011-03-14 | 2011-09-07 | 广州市越堡水泥有限公司 | Slow-setting cement for highway roadbeds |
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