CN105217981A - A kind of environment protecting cement blended material, cement and application - Google Patents
A kind of environment protecting cement blended material, cement and application Download PDFInfo
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- CN105217981A CN105217981A CN201510543776.2A CN201510543776A CN105217981A CN 105217981 A CN105217981 A CN 105217981A CN 201510543776 A CN201510543776 A CN 201510543776A CN 105217981 A CN105217981 A CN 105217981A
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- cement
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- slag
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- 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
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- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to building material technical field, particularly the application of a kind of environment protecting cement blended material, the cement made with this blended material and cement.This environment protecting cement blended material comprises following component by weight: slag micro powder 5-15 part, desulphurize fly ash 2-15 part, slag 4-15 part, flyash 3-15 part.Containing more CaO, SiO in slag, desulphurize fly ash, slag and flyash
2, Al
2o
3, Fe
2o
3, similar to cement composition, can be used as the preparation that environment protecting cement blended material is applied to cement.The present invention adopts slag, desulphurize fly ash, slag and flyash as a kind of environment protecting cement blended material, add the Processes For Effective Conversion of solid waste slag, desulphurize fly ash, slag and flyash, reduce the cost of manufacture of cement, the cement good combination property of production simultaneously.
Description
Technical field
The present invention relates to building material technical field, particularly the application of a kind of environment protecting cement blended material, the cement made with this blended material and cement.
Background technology
2014, the ultimate production of Chinese cement reached 24.76 hundred million tons, accounts for more than 50% of world wide production.The starting material of cement are Wingdale and clay, are Nonrenewable resources.Meanwhile, along with going deep into of process of industrialization, annual trade waste generation is huge, and land occupation, causes environmental pollution.If trade waste is carried out replacing partial cement as cement mixture, not only can reduce the consumption of manufacture of cement to Nonrenewable resources, reduce cement cost, and the added value of trade waste can be improved, accomplish to turn waste into wealth, meet national sustainable development necessary requirement.
Slag, desulphurize fly ash, slag, flyash etc. are main large industrial solid castoff, for a long time, the discarded stacking of these industrial solid castoffs not only occupies large stretch of industry and agricultural land, serious pollution is caused to environment, waste a large amount of resources, and have impact on the Sustainable development of related industries solid waste industry.Slag is the slag of discharging in steelmaking process, is the primary solids by product of smelting industry, and its chemical composition and mineral composition, close to cement clinker, containing a small amount of Dicalcium Phosphate (Feed Grade) and tricalcium silicate, have the material of potential gelation activity; Desulphurize fly ash is the desulfurizing byproduct produced in flue gas desulfurization course, and the materials such as the calcium sulfate wherein contained are close with cement major ingredient; Slag is the industrial residue produced in heat power plant boiler, and annual output crosses hundred million tons, but makes a low multiple use, a large amount of active SiO wherein contained
2, Al
2o
3it is the primary chemical moiety of silicate cement; Flyash is the solid waste produced in coal burning process, the silicon oxide wherein contained and aluminum oxide can with the calcium hydroxide generation secondary reaction of hydrations in hydrolysis product of cement, and CSH, CAH class silicate minerals of generation can improve later strength and the weather resistance of cement-based material.Owing to all maybe can there is the potential gelation activity material of hydration reaction in slag, desulphurize fly ash, slag and flyash containing the composition close with cement constituent, therefore all can be used as the mixing material of cement, improve cement output, reduce manufacture of cement cost, regulate strength of cement grade, improve cement performance and quality, comprehensive utilization trade waste, reduce environmental pollution, realize the ecology of Cement industry.
Summary of the invention
The object of the present invention is to provide a kind of environment protecting cement blended material, industrial solid castoff Utilizing question can be solved.
A kind of environment protecting cement blended material, described blended material comprises following component by weight:
Slag micro powder 5-15 part, desulphurize fly ash 2-15 part, slag 4-15 part, flyash 3-15 part.
Further, described blended material comprises following component by weight:
Slag micro powder 8-12 part, desulphurize fly ash 4-12 part, slag 8-13 part, flyash 5-13 part.
Described slag micro powder is that the slag of quenching explained hereafter obtains through magnetic separation, fine grinding process.
Described slag micro powder, its free calcium oxide content≤3%, apparent density>=2.5t/m
3, water content≤1%, moiety by weight part that granularity is less than 0.075mm accounts for 75-100%, and hydrophilic coefficient is less than 1.
Described desulphurize fly ash is semi-dry desulphurization ash, and its composition comprises following component by weight:
CaO45-60 part, SO
33-15 part, MgO, SiO
2, Al
2o
3, FeO and K
2the content of O is all less than 2 parts.
Described slag comprises following component by weight:
SiO
237-61 part, Al
2o
315-36 part, Fe
2o
35-24 part, CaO2-10 part.
Described flyash comprises following component by weight:
SiO
231-60 part, CaO11-24 part, Al
2o
312-36 part, Fe
2o
32-8 part, SO
30-6 part.
The cement that described environment protecting cement blended material is made, described cement comprises the material of following parts by weight: cement clinker 45-60 part, Wingdale 10-20 part, plaster of paris 2-7 part, environment protecting cement blended material 14-60 part.
Further, the cement that described environment protecting cement blended material is made, described cement comprises the material of following parts by weight: cement clinker 48-55 part, Wingdale 12-16 part, plaster of paris 3-6 part, environment protecting cement blended material 25-50 part.
The application of described cement in construction work and road pavement.
A kind of environment protecting cement blended material provided by the invention, cement and application, beneficial effect is as follows:
1, more CaO, SiO is contained in slag, desulphurize fly ash, slag and flyash
2, Al
2o
3, Fe
2o
3similar to cement composition, can be used as the preparation that mixing material is applied to cement, add the Processes For Effective Conversion of solid waste slag, desulphurize fly ash, slag and flyash, not only there is considerable economic benefit, and decrease the pollution of solid waste to environment, achieve environmental benefit, economic benefit and social benefit win-win.
2, reduce the cost of manufacture of cement, produce the cement performance obtained good, quality is high, and cement setting time prepared by the present invention, stability and bending and compressive strength all meet the requirement in " general purpose portland cement " (GB175-2007).
Embodiment
Further illustrate the present invention below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1
Get 55 parts, certain cement mill grog, the plaster of paris 4 parts, certain steel mill's semi-dry desulphurization ash 2 parts, slag micro powder 15 parts, 15 parts, Wingdale, certain plant slag 6 parts, 3 parts, flyash, is mixed with PC32.5 cement, tests its time of coagulation, stability and 3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m
3, water content 0.8%, size range is less than 0.075mm part and accounts for 80%, and outward appearance is lumpd without granule, hydrophilic coefficient 0.9.
In desulphurize fly ash component: CaO content is 45 parts, SO
3content is 13 parts, and content of MgO is 1 part, SiO
2content is 1 part, Al
2o
3content is 1.5 parts, FeO content is 1 part, K
2o content is 1.2 parts.
In slag components: SiO
2content is 50 parts, Al
2o
3content is 30 parts, Fe
2o
3content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO
2content is 40 parts, and CaO content is 20 parts, Al
2o
3content is 20 parts, Fe
2o
3content is 4 parts, SO
3content is 3 parts.
Embodiment 2
Get 55 parts, certain cement mill grog, the plaster of paris 4 parts, certain steel mill's semi-dry desulphurization ash 4 parts, slag micro powder 15 parts, 13 parts, Wingdale, certain plant slag 6 parts, 3 parts, flyash, is mixed with PC32.5 cement, tests its time of coagulation, stability and 3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1.5%, apparent density 2.9t/m
3, water content 0.7%, size range is less than 0.075mm part and accounts for 90%, and outward appearance is lumpd without granule, hydrophilic coefficient 0.9.
In desulphurize fly ash component: CaO content is 50 parts, SO
3content is 12 parts, and content of MgO is 1.5 parts, SiO
2content is 1 part, Al
2o
3content is 1.5 parts, FeO content is 1 part, K
2o content is 1.2 parts.
In slag components: SiO
2content is 50 parts, Al
2o
3content is 30 parts, Fe
2o
3content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO
2content is 40 parts, and CaO content is 20 parts, Al
2o
3content is 20 parts, Fe
2o
3content is 4 parts, SO
3content is 3 parts.
Embodiment 3
Get 55 parts, certain cement mill grog, the plaster of paris 5 parts, certain steel mill's semi-dry desulphurization ash 4 parts, slag micro powder 9 parts, 15 parts, Wingdale, certain plant slag 6 parts, 6 parts, flyash, is mixed with PC32.5 cement, tests its time of coagulation, stability and 3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m
3, water content 0.8%, size range is less than 0.075mm part and accounts for 88%, and outward appearance is lumpd without granule, hydrophilic coefficient 0.9.
In desulphurize fly ash component: CaO content is 45 parts, SO
3content is 8 parts, and content of MgO is 1 part, SiO
2content is 1 part, Al
2o
3content is 1.5 parts, FeO content is 1 part, K
2o content is 1.2 parts.
In slag components: SiO
2content is 50 parts, Al
2o
3content is 25 parts, Fe
2o
3content is 23 parts, and CaO content is 6 parts.
In fine coal ash content: SiO
2content is 40 parts, and CaO content is 20 parts, Al
2o
3content is 25 parts, Fe
2o
3content is 7 parts, SO
3content is 5 parts.
Embodiment 4
Get 55 parts, certain cement mill grog, the plaster of paris 3 parts, certain steel mill's semi-dry desulphurization ash 8 parts, slag micro powder 12 parts, 15 parts, Wingdale, certain plant slag 4 parts, 3 parts, flyash, is mixed with PC32.5 cement, tests its time of coagulation, stability and 3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m
3, water content 0.8%, size range is less than 0.075mm part and accounts for 80%, and outward appearance is lumpd without granule, hydrophilic coefficient 0.9.
In desulphurize fly ash component: CaO content is 45 parts, SO
3content is 10 parts, and content of MgO is 1 part, SiO
2content is 1 part, Al
2o
3content is 1.4 parts, FeO content is 1 part, K
2o content is 1.2 parts.
In slag components: SiO
2content is 50 parts, Al
2o
3content is 30 parts, Fe
2o
3content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO
2content is 40 parts, and CaO content is 22 parts, Al
2o
3content is 20 parts, Fe
2o
3content is 4 parts, SO
3content is 3 parts.
Embodiment 5
Get 55 parts, certain cement mill grog, the plaster of paris 6 parts, certain steel mill's semi-dry desulphurization ash 8 parts, slag micro powder 10 parts, 12 parts, Wingdale, certain plant slag 6 parts, 3 parts, flyash, is mixed with PC32.5 cement, tests its time of coagulation, stability and 3d and 28d intensity.
Wherein slag micro powder free calcium oxide level 1%, apparent density 2.8t/m
3, water content 0.8%, size range is less than 0.075mm part and accounts for 86%, and outward appearance is lumpd without granule, hydrophilic coefficient 0.8.
In desulphurize fly ash component: CaO content is 45 parts, SO
3content is 6 parts, and content of MgO is 1 part, SiO
2content is 1 part, Al
2o
3content is 1.5 parts, FeO content is 1 part, K
2o content is 1.2 parts.
In slag components: SiO
2content is 58 parts, Al
2o
3content is 30 parts, Fe
2o
3content is 22 parts, and CaO content is 8 parts.
In fine coal ash content: SiO
2content is 40 parts, and CaO content is 20 parts, Al
2o
3content is 20 parts, Fe
2o
3content is 4 parts, SO
3content is 3 parts.
The performance test of the cement in the various embodiments described above the results are shown in Table 1.Requirement in all satisfied " general purpose portland cement " (GB175-2007) of the cement setting time, stability and the bending and compressive strength that adopt patent system of the present invention standby as shown in Table 1.
The performance of cement in each embodiment of table 1
The above embodiments are only the preferred technical solution of the present invention, and should not be considered as restriction of the present invention, and the embodiment in the application and the feature in embodiment, can arbitrary combination mutually when not conflicting.The technical scheme that protection scope of the present invention should be recorded with claim, the equivalents comprising technical characteristic in the technical scheme of claim record is protection domain.Namely the equivalent replacement within the scope of this improves, also within protection scope of the present invention.
Claims (10)
1. an environment protecting cement blended material, is characterized in that, described blended material comprises following component by weight:
Slag micro powder 5-15 part, desulphurize fly ash 2-15 part, slag 4-15 part, flyash 3-15 part.
2. a kind of environment protecting cement blended material according to claim 1, is characterized in that, described blended material comprises following component by weight:
Slag micro powder 8-12 part, desulphurize fly ash 4-12 part, slag 8-13 part, flyash 5-13 part.
3. a kind of environment protecting cement blended material according to claim 1 and 2, is characterized in that, described slag micro powder is that the slag of quenching explained hereafter obtains through magnetic separation, fine grinding process.
4. a kind of environment protecting cement blended material according to claim 1 and 2, is characterized in that, described slag micro powder, its free calcium oxide content≤3%, apparent density>=2.5t/m
3, water content≤1%, moiety by weight part that granularity is less than 0.075mm accounts for 75-100%, and hydrophilic coefficient is less than 1.
5. a kind of environment protecting cement blended material according to claim 1 and 2, is characterized in that, described desulphurize fly ash is semi-dry desulphurization ash, and its composition comprises following component by weight:
CaO45-60 part, SO
33-15 part, MgO, SiO
2, Al
2o
3, FeO and K
2the content of O is all less than 2 parts.
6. a kind of environment protecting cement blended material according to claim 1 and 2, is characterized in that, described slag comprises following component by weight:
SiO
237-61 part, Al
2o
315-36 part, Fe
2o
35-24 part, CaO2-10 part.
7. a kind of environment protecting cement blended material according to claim 1 and 2, is characterized in that, described flyash comprises following component by weight:
SiO
231-60 part, CaO11-24 part, Al
2o
312-36 part, Fe
2o
32-8 part, SO
30-6 part.
8. utilize the cement that the environment protecting cement blended material described in claim 1-7 any one is made, it is characterized in that, described cement comprises the material of following parts by weight: cement clinker 45-60 part, Wingdale 10-20 part, plaster of paris 2-7 part, environment protecting cement blended material 14-60 part.
9. according to the cement that right wants the environment protecting cement blended material described in 8 to make, it is characterized in that, described cement comprises the material of following parts by weight: cement clinker 48-55 part, Wingdale 12-16 part, plaster of paris 3-6 part, environment protecting cement blended material 25-50 part.
10. the application of the cement described in claim 8 or 9 in construction work and road pavement.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113896465A (en) * | 2021-10-22 | 2022-01-07 | 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113896465A (en) * | 2021-10-22 | 2022-01-07 | 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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| CN105217981B (en) | 2018-12-07 |
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