CN104591564A - Burnt rock cement mixture and burnt rock cement - Google Patents
Burnt rock cement mixture and burnt rock cement Download PDFInfo
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- CN104591564A CN104591564A CN201510003596.5A CN201510003596A CN104591564A CN 104591564 A CN104591564 A CN 104591564A CN 201510003596 A CN201510003596 A CN 201510003596A CN 104591564 A CN104591564 A CN 104591564A
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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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Abstract
The invention discloses a burnt rock cement mixture and burnt rock cement, wherein the burnt rock cement mixture is prepared from the following components in parts by weight: 4-6 parts of fly ash, 3-5 parts of limestone, 2-4 parts of furnace slag and 4-6.0 parts of burnt rock; the burnt rock cement is prepared from the following components in parts by weight: 75.5-78.5 parts of a general portland cement clinker, 4.5 parts of gypsum and 13-21 parts of the burnt rock cement mixture. The burnt rock cement mixture and the burnt rock cement have the advantages that according to the burnt rock cement mixture and burnt rock cement disclosed by the invention, with burnt rock solid wastes as a main raw material of the cement mixture, the produced cement can achieve a relative standard, so that the problem of treating the burnt rock solid wastes can be effectively solved, wastes are utilized, productivity is increased, the cost is lowered, diversification of the mixture is realized, resources and energy are saved, the environmental load is alleviated, and the burnt rock cement mixture and the burnt rock cement have important significance of realizing sustainable and healthy development of cement industry.
Description
Technical field:
The present invention relates to field of cement production, refer in particular to a kind of burnt rock cement mixture and burnt rock cement.
Background technology:
Coal seam, in spontaneous combustion process, causes the engineering Geological Characteristics of coal seam country rock to change and forms burnt rock under its high temperature barbecue effect, after rock mass burns and becomes, cementing matter decomposes, organism burns and loses, rock crushing, crack, hole are grown, and water-absorbent and spontaneous combustion water ratio generally reduce, light weight and crisp, rock elasticity mould increases, and Poisson's ratio diminishes, and resistivity obviously increases, its absorptive character are strong, outward appearance in the form of sheets, rib sheet fragment.
It is comparatively large that China's some areas big area is dispersed with its developing fire scope of spontaneous combustion of coal seam district (coal mine fire area), produces a large amount of special mass-burnt rock solid waste in flame range combustion processes.In addition, peeling off rock stratum, flame range top is one of the major technique that coal-field fire is administered, also a large amount of burnt rock solid wastes artificially can be produced in stripping process, its solid waste produced is a considerable number of, utilization ratio is low, will will contribute to its exploitation to China's cement to high-performance and green future development and Appropriate application industrial residue, save energy, decreasing pollution.
In addition, in current manufacture of cement main with high-calcium fly ass as blended material, high-calcium fly ass water demand ratio is higher, and f-Ca0 content is high and unstable, easily causes soundness of cement defective, and starting material trucking costs is high, causes direct material cost higher.
Table 1 is the test data to silicon burnt rock Chemical Composition and activity
Can find out that burnt rock CaO content is high from upper table data, the control of the moderate indicator of product variety to cement of loss on ignition content has no adverse effects and 28 days higher later stage rate of increase to cement of activity index are useful.
Summary of the invention:
First object of the present invention is to provide a kind of burnt rock cement mixture, can either solve the problem that burnt rock solid waste cannot effectively utilize, can produce qualified cement mixture again.
Second object of the present invention is to provide a kind of burnt rock cement obtained by burnt rock blended material.
First object of the present invention is implemented by following technical scheme: a kind of burnt rock cement mixture, and it comprises the component of following weight part: flyash 4-6 part, Wingdale 3-5 part, slag 2-4 part, burnt rock 4-6 part.
Preferably, it comprises the component of following weight part: 4 parts, described flyash, 5 parts, described Wingdale, 4 parts, described slag, described burnt rock 6 parts.
Second object of the present invention is implemented by following technical scheme: the burnt rock cement obtained by above-mentioned burnt rock cement mixture, it comprises the component of following weight part: common Portland grog 75.5-78.5 part, 4.5 parts, gypsum, burnt rock cement mixture 13-21 part.
Preferably, it comprises the component of following weight part: 75.5 parts, common Portland grog, 4.5 parts, gypsum, burnt rock cement mixture 19 parts.
Advantage of the present invention: the invention provides a kind of burnt rock cement mixture and burnt rock cement, make use of the main raw material of burnt rock solid waste as cement mixture, the cement produced can reach relevant criterion, effectively can solve a process difficult problem for burnt rock solid waste, accomplish utilization of waste material again, increase production capacity; Reduce cost, realize blended material diversification, economize on resources the energy, alleviates carrying capacity of environment, and the sustainable and healthy development realizing cement industry has great importance.
Embodiment:
Embodiment 1: a kind of burnt rock cement mixture, it comprises the component of following weight part: 4 parts, flyash, 3 parts, Wingdale, 2 parts, slag, burnt rock 4 parts.
Embodiment 2: the burnt rock cement obtained by burnt rock cement mixture in embodiment 1, it comprises the component of following weight part: 75.5 parts, common Portland grog, 4.5 parts, gypsum, burnt rock cement mixture 13 parts, wherein blended material comprises 4 parts, flyash, 3 parts, Wingdale, 2 parts, slag, burnt rock 4 parts.
According to the cement formula in the present embodiment, the P.O42.5 cement produced according to existing cement production process grinds greatly test and obtains following data:
Table 2:P.O42.5 cement grinds test-results greatly
| Interventions Requested | Measured result |
| Initial set | 120min |
| Final set | 2.8h |
| 3 days folding strengths | 6.1MPa |
| 28 days folding strengths | 10.6MPa |
| 3 days ultimate compression strength | 28.2MPa |
| 28 days ultimate compression strength | 55.2MPa |
| Stability | Qualified |
| Specific area | 365m 2/kg |
| Degree of mobilization | 205mm |
| Standard consistency | 26.8 |
| MgO | 2.07％ |
| Cl - | 0.0023％ |
| SO 3 | 2.45％ |
| Loss on ignition | 2.30％ |
Table 3:P.O42.5 ordinary Portland cement relevant criterion and strength of cement national standard
| Interventions Requested | Standard |
| Initial set | ≥45min |
| Final set | ≤10h |
| 3 days folding strengths | ≥3.5MPa |
| 28 days folding strengths | ≥6.5MPa |
| 3 days ultimate compression strength | ≥17.0MPa |
| 28 days ultimate compression strength | ≥42.5MPa |
| Stability | Qualified |
| Specific area | ≥300m 2/kg |
| Degree of mobilization | \ |
| Standard consistency | \ |
| MgO | ≤5.0％ |
| Cl - | ≤0.06％ |
| SO 3 | ≤3.5％ |
| Loss on ignition | ≤5.0％ |
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement properties meet concerned countries standard.
The P.O42.5 burnt rock cement applications of producing according to the formula in the present embodiment, in concrete, is tested concrete performance.
Concrete concrete composition and weight proportion are: cement: flyash: sand: rubble: water: admixture (poly carboxylic acid)=9.29:3.1:21.75:32.61:5.07:1.0% (1.0% refers to admixture (poly carboxylic acid) mass percentage in concrete).
Table 4: above-mentioned testing concrete performance data
| Interventions Requested | Measured data |
| Initial slump | 200mm |
| Initial extension degree | 570mm |
| The 60min slump | 195mm |
| 60min divergence | 355mm |
| 3 days ultimate compression strength | 27.0MPa |
| 7 days ultimate compression strength | 45.9MPa |
| 28 days ultimate compression strength | 53.1MPa |
Table 5: concrete performance national standard
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement applications fortune concrete in, concrete properties meets concerned countries standard.
Embodiment 3: a kind of burnt rock cement mixture, it comprises the component of following weight part: 4 parts, flyash, 5 parts, Wingdale, 4 parts, slag, burnt rock 6 parts.
Embodiment 4: the burnt rock cement obtained by burnt rock cement mixture in embodiment 3, it comprises the component of following weight part: 75.5 parts, common Portland grog, 4.5 parts, gypsum, burnt rock cement mixture 19 parts, wherein blended material comprises 4 parts, flyash, 5 parts, Wingdale, 4 parts, slag, burnt rock 6 parts.
According to the cement formula in the present embodiment, the P.O42.5 cement produced according to existing cement production process grinds greatly test and obtains following data:
The large mill test-results of table 6:P.O42.5 burnt rock cement
| Interventions Requested | Measured data |
| Initial set | 122min |
| Final set | 3.2h |
| 3 days folding strengths | 6.3MPa |
| 28 days folding strengths | 10.6MPa |
| 3 days ultimate compression strength | 27.5MPa |
| 28 days ultimate compression strength | 54.9MPa |
| Specific area | 364m 2/kg |
| Stability | Qualified |
| Degree of mobilization | 203.5 |
| Standard consistency | 27.2 |
| MgO | 2.33 |
| CI- | 0.0035 |
| SO 3 | 2.50 |
| Loss on ignition | 2.61 |
Table 7:P.O42.5 ordinary Portland cement relevant criterion and strength of cement national standard
| Interventions Requested | Standard |
| Initial set | ≥45min |
| Final set | ≤10h |
| 3 days folding strengths | ≥3.5MPa |
| 28 days folding strengths | ≥6.5MPa |
| 3 days ultimate compression strength | ≥17.0MPa |
| 28 days ultimate compression strength | ≥42.5MPa |
| Stability | Qualified |
| Specific area | ≥300m 2/kg |
| Degree of mobilization | \ |
| Standard consistency | \ |
| MgO | ≤5.0％ |
| Cl - | ≤0.06％ |
| SO 3 | ≤3.5％ |
| Loss on ignition | ≤5.0％ |
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement properties meet concerned countries standard.
The P.O42.5 burnt rock cement applications of producing according to the formula in the present embodiment, in concrete, is tested concrete performance.
Concrete concrete composition and proportioning are: cement: flyash: sand: rubble: water: admixture (poly carboxylic acid)=9.29:3.1:21.75:32.61:5.07:1.0% (1.0% refers to admixture (poly carboxylic acid) mass percentage in concrete).
Table 8: above-mentioned testing concrete performance data
| Interventions Requested | Measured value |
| Initial slump | 205mm |
| Initial extension degree | 575mm |
| The 60min slump | 195mm |
| 60min divergence | 365mm |
| 3 days ultimate compression strength | 27.8MPa |
| 7 days ultimate compression strength | 45.53MPa |
| 28 days ultimate compression strength | 53.2MPa |
Table 9 concrete performance national standard
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement applications fortune concrete in, concrete properties meets concerned countries standard.
Embodiment 5: a kind of burnt rock cement mixture, it comprises the component of following weight part: 6 parts, flyash, 5 parts, Wingdale, 4 parts, slag, burnt rock 6 parts.
Embodiment 6: the burnt rock cement obtained by burnt rock cement mixture in embodiment 4, it comprises the component of following weight part:, it also comprises the component of following weight part: 77.5 parts, common Portland grog, 4.5 parts, gypsum, burnt rock cement mixture 21 parts, wherein blended material comprises 6 parts, flyash, 5 parts, Wingdale, 4 parts, slag, burnt rock 6 parts.
According to the cement formula in the present embodiment, the P.O42.5 cement produced according to existing cement production process grinds greatly test and obtains following data:
The large mill test-results of table 10:P.O42.5 burnt rock cement
| Interventions Requested | Measured data |
| Initial set | 160min |
| Final set | 3.5h |
| 3 days folding strengths | 5.5MPa |
| 28 days folding strengths | 10.1MPa |
| 3 days ultimate compression strength | 27.8MPa |
| 28 days ultimate compression strength | 51.8MPa |
| Specific area | 360m 2/kg |
| Stability | Qualified |
| Degree of mobilization | 200 |
| Standard consistency | 27.8 |
| MgO | 2.93 |
| CI- | 0.0038 |
| SO 3 | 2.55 |
| Loss on ignition | 2.61 |
Table 11:P.O42.5 ordinary Portland cement relevant criterion and strength of cement national standard
| Interventions Requested | Standard |
| Initial set | ≥45min |
| Final set | ≤10h |
| 3 days folding strengths | ≥3.5MPa |
| 28 days folding strengths | ≥6.5MPa |
| 3 days ultimate compression strength | ≥17.0MPa |
| 28 days ultimate compression strength | ≥42.5MPa |
| Stability | Qualified |
| Specific area | ≥300m 2/kg |
| Degree of mobilization | \ |
| Standard consistency | \ |
| MgO | ≤5.0％ |
| Cl - | ≤0.06％ |
| SO 3 | ≤3.5％ |
| Loss on ignition | ≤5.0％ |
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement properties meet concerned countries standard.
The P.O42.5 burnt rock cement applications of producing according to the formula in the present embodiment, in concrete, is tested concrete performance.
Concrete concrete composition and proportioning are: cement: flyash: sand: rubble: water: admixture (poly carboxylic acid)=9.29:3.1:21.75:32.61:5.07:1.0% (1.0% refers to admixture (poly carboxylic acid) mass percentage in concrete).
Table 12: above-mentioned testing concrete performance data
| Interventions Requested | Measured value |
| Initial slump | 200mm |
| Initial extension degree | 570mm |
| The 60min slump | 190mm |
| 60min divergence | 360mm |
| 3 days ultimate compression strength | 27.81MPa |
| 7 days ultimate compression strength | 44.5MPa |
| 28 days ultimate compression strength | 51.9MPa |
Table 13 concrete performance national standard
By above two table in Data Comparison can find: according in the present embodiment formula produce P.O42.5 burnt rock cement applications in concrete, concrete properties meets concerned countries standard.
Claims (4)
1. a burnt rock cement mixture, is characterized in that, it comprises the component of following weight part: flyash 4-6 part, Wingdale 3-5 part, slag 2-4 part, burnt rock 4-6 part.
2. a kind of burnt rock cement mixture according to claim 1, it is characterized in that, it comprises the component of following weight part: 4 parts, described flyash, 5 parts, described Wingdale, 4 parts, described slag, described burnt rock 6 parts.
3., by the burnt rock cement that burnt rock cement mixture described in claim 1 is obtained, it is characterized in that, it comprises the component of following weight part: common Portland grog 75.5-78.5 part, 4.5 parts, gypsum, burnt rock cement mixture 13-21 part.
4., by the burnt rock cement that burnt rock cement mixture described in claim 2 is obtained, it is characterized in that, it comprises the component of following weight part: 75.5 parts, common Portland grog, 4.5 parts, gypsum, burnt rock cement mixture 19 parts.
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| CN201510003596.5A CN104591564A (en) | 2015-01-06 | 2015-01-06 | Burnt rock cement mixture and burnt rock cement |
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| CN201510003596.5A CN104591564A (en) | 2015-01-06 | 2015-01-06 | Burnt rock cement mixture and burnt rock cement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606678A (en) * | 2019-09-24 | 2019-12-24 | 贵州福泉西南水泥有限公司 | Portland cement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120523A (en) * | 1995-07-21 | 1996-04-17 | 广西粉煤灰资源开发公司 | Granular cement active mixed material |
| CN101870576A (en) * | 2010-07-01 | 2010-10-27 | 长治市漳山建材有限公司 | Cement composition and preparation method thereof |
-
2015
- 2015-01-06 CN CN201510003596.5A patent/CN104591564A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1120523A (en) * | 1995-07-21 | 1996-04-17 | 广西粉煤灰资源开发公司 | Granular cement active mixed material |
| CN101870576A (en) * | 2010-07-01 | 2010-10-27 | 长治市漳山建材有限公司 | Cement composition and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王尤宏: ""新疆浅水河烧变岩矿床的地质特征及开发应用"", 《建材地质》, no. 1, 31 December 1993 (1993-12-31), pages 21 - 25 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606678A (en) * | 2019-09-24 | 2019-12-24 | 贵州福泉西南水泥有限公司 | Portland cement |
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Application publication date: 20150506 |