CN102815877A - High-grade general portland cement admixing limestone and zeolite - Google Patents
High-grade general portland cement admixing limestone and zeolite Download PDFInfo
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- CN102815877A CN102815877A CN2012102709738A CN201210270973A CN102815877A CN 102815877 A CN102815877 A CN 102815877A CN 2012102709738 A CN2012102709738 A CN 2012102709738A CN 201210270973 A CN201210270973 A CN 201210270973A CN 102815877 A CN102815877 A CN 102815877A
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Abstract
The invention relates to high-grade general portland cement admixing limestone and zeolite, mainly solving the problem that existing portland cement has raw material sources in short supply and high cost by lack of alternative mineral mixtures. The high-grade general portland cement admixing limestone and zeolite contains the following components by mass percent: 70-85% of cement clinkers, 4-14% of lime rocks, 2-10% of zeolite rocks, 2-5% of coal ashes and 5% of natural gypsum. The high-grade general portland cement prepared by the invention can be suitable for all kinds of building engineering, significantly increase early strength and long-term strength of cement, reduce dosage of cement clinkers, keep water demand of cement invariable, and have wide source of raw materials and low cost.
Description
Technical field
The present invention relates to a kind of silicate cement in the oil recovery field, oil field, especially a kind of high grade general purpose portland cement of mixing Wingdale and zeolite again.
Background technology
Because resource in the Portland clinker production process and problems such as energy-output ratio is big, environmental pollution is serious, mix a large amount of activity or nonactive mineral blended material and replace cement clinker to prepare ordinary Portland cement or composite Portland cement is a major technique approach of realization cement industry Sustainable development.On the other hand, the Large scale construction of all kinds of emphasis Infrastructure of China increases the demand of HS label cement day by day.At present, the mineral blended material kind that is used for manufacture of cement is a lot, and what wherein activity better, consumption is maximum, use is the widest is industrial wastes such as flyash, slag.In recent years, along with the quick growth of cement in China output, the phenomenon that supply falls short of demand has appearred in these high-quality industrial residue resources that can be used for cement of high index production, badly influences the ordinary production and the development in part cement mill.Therefore, seek new alternative ore mixing material and seem very important for the development in many cement mill.
Summary of the invention
The invention reside in and overcome the problem that exists in the background technology, and provide
OnePlant the high grade general purpose portland cement of mixing Wingdale and zeolite again.This mixes the high grade general purpose portland cement of Wingdale and zeolite again, can obviously improve the early stage and later strength of cement, reduces cement clinker consumption, keeps the cement water requirement not increase, the starting material wide material sources, and cost is low.
The present invention solves its problem and can reach through following technical scheme: a kind of high grade general purpose portland cement of mixing Wingdale and zeolite again, and its component and proportioning are following by mass percentage: cement clinker 70～85%; Wingdale rock 4～14%; Zeolite rock 2～10%; Flyash 2～5%; The plaster of paris 5%.
Described Wingdale rock is the natural Mineral resources that a kind of reserves are abundant, distribute and obtain and process extensively, easily, is a kind of novel low cost cement mineral blended material.Mix an amount of Wingdale in the silicate cement and help improving early strength, improve concrete workability.But because Wingdale is a kind of inert flour filler, no aquation is active, mixes the later strength growth that the back influences cement in a large number.Zeolite is the general name of zeolite family mineral, is the manosil AS mineral of a kind of aqueous basic metal or earth alkali metal.Natural zeolite rock is the tuff that zeolitization has taken place in long-term pressure, temperature and water effect next section.Contain active SiO in the natural zeolite
2And Al
2O
3, have potential preferably pozzolanic activity, can directly mix the zeolite powder mineral admixture that uses in the concrete.Mixing a large amount of zeolites can obviously increase the water requirement of cement.Therefore, use Wingdale and zeolite can help the lifting of cement over-all properties in proportion.
General purpose portland cement of the present invention mainly is made up of cement clinker, the plaster of paris, Wingdale, zeolite, 5 kinds of starting material of flyash.Wherein cement clinker is the main intensity source of cement, but its thermal discharge is big, price is the highest, should under the condition that cement performance meets the demands, reduce its consumption as far as possible; The main effect of the plaster of paris is to regulate time of coagulation, makes the initial set of cement and the scope that final setting time is up to state standards and requires, and conventional volume is 5% of a cement total mass; Wingdale can improve flowability, the minimizing water consumption of cement slurry in cement; Can cement early strength increased fast with the tricalcium aluminate generation chemical reaction in the cement clinker at hydrated cementitious early part limestone particle, but its volume can influence the development of cement later strength when higher; Zeolite has tangible vesicular structure characteristic; Its inside is contained and is had certain active chemical substance in a large number and can pozzolanic reaction take place in the hydrated cementitious middle and later periods; Make the strength of cement sustainable growth, but its volume can increase the cement water requirement more for a long time, be unfavorable in actual engineering, using.Contain a certain amount of active substance in the flyash equally, improve the strength development of cement middle and later periods, but wherein contain certain unburnt carbon granule, can the frost resistance of cement concrete be had a negative impact.Therefore, each component is prepared cement by a certain percentage among the present invention, and the early stage and later strength of cement all is significantly improved, and the cement water requirement does not increase, and over-all properties does not reduce.
The present invention and above-mentioned background compared with techniques can have following beneficial effect: this mixes the high grade general purpose portland cement of Wingdale and zeolite again; Be by the mass percent metering according to the rules of above different materials, and through ball mill levigate and mix to specific surface area greater than 350m
2The Powdered thing of/kg.Adopt that this method produces 42.5,52.5MPa strength grade cement can obviously improve the early stage and later strength of cement, reduces cement clinker consumption, keeps the cement water requirement not increase.28 days ultimate compression strength of this cement is higher than national Specification value 4～8MPa, reduces cement clinker consumption 10～25% simultaneously.Have the starting material wide material sources, production technique is simple, and cost is low, advantages such as remarkable in economical benefits.
Embodiment:
To combine specific embodiment that the present invention is described further below:
To be the tricalcium silicate mineral content be not less than the Portland clinker of 58MPa greater than 55%, 28 day intensity to the used cement clinker of embodiment, the calcite content in the Wingdale rock low 50%; The zeolite rock is natural product clinoptilolite or mordenite rock, and wherein zeolite content is not less than 40%; Flyash is the original state ash of power plant emission, and loss on ignition is no more than 8%; Dihydrate gypsum content in the plaster of paris is not less than 90%.
Embodiment 1
Take by weighing cement clinker 7000 g, Wingdale rock 1400 g, zeolite rock 600 g, flyash 500 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 2
Take by weighing cement clinker 7000 g, Wingdale rock 1300 g, zeolite rock 700 g, flyash 500 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 3
Take by weighing cement clinker 7000 g, Wingdale rock 1200 g, zeolite rock 800 g, flyash 500 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 4
Take by weighing cement clinker 7000 g, Wingdale rock 1100 g, zeolite rock 900 g, flyash 500 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 5
Take by weighing cement clinker 7000 g, Wingdale rock 1000 g, zeolite rock 1000 g, flyash 500 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 6
Take by weighing cement clinker 7800 g, Wingdale rock 800 g, zeolite rock 500 g, flyash 400 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the composite Portland cement of 42.5MPa strength grade.
Embodiment 7
Take by weighing cement clinker 8500 g, Wingdale rock 600 g, zeolite rock 200 g, flyash 200 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the ordinary Portland cement of 52.5MPa strength grade.
Embodiment 8
Take by weighing cement clinker 8500 g, Wingdale rock 400 g, zeolite rock 400 g, flyash 200 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the ordinary Portland cement of 52.5MPa strength grade.
Embodiment 9
Take by weighing cement clinker 8500 g, Wingdale rock 500 g, zeolite rock 300 g, flyash 200 g, the plaster of paris 500 g mix, and levigate to specific surface area greater than 350m
2The Powdered thing of/kg is the ordinary Portland cement of 52.5MPa strength grade.
According to the national standard requirement, the fundamental property index of above cement sample is tested, and with national standard " general purpose portland cement " (GB175-2007) in set quota compare, the result sees table 1 and table 2; Each cement sample main performance index that table 1 is produced for embodiment 1-6; Each cement sample main performance index that table 2 embodiment 7-9 produces.It is thus clear that each cement performance index that present method is produced complies with the national standard requirements fully.
Each cement sample main performance index that table 1 embodiment 1-6 produces
Each cement sample main performance index that table 2 embodiment 7-9 produces.
Claims (6)
1. high grade general purpose portland cement of mixing Wingdale and zeolite again, its component and proportioning are following by mass percentage: cement clinker 70～85%, Wingdale rock 4～14%, zeolite rock 2～10%, flyash 2～5%, the plaster of paris 5%.
2. a kind of high grade general purpose portland cement of mixing Wingdale and zeolite again according to claim 1; It is characterized in that: its component and proportioning are following by mass percentage: cement clinker 70%, Wingdale rock 10～14%, zeolite rock 6～10%; Flyash 5%, the plaster of paris 5%.
3. a kind of high grade general purpose portland cement of mixing Wingdale and zeolite again according to claim 1; It is characterized in that: its component and proportioning are following by mass percentage: cement clinker 85%, Wingdale rock 4～6%, zeolite rock 2～4%; Flyash 2%, the plaster of paris 5%.
4. according to claim 1 or 2 or 3 described a kind of high grade general purpose portland cements of mixing Wingdale and zeolite again, it is characterized in that: to be the tricalcium silicate mineral content be not less than the Portland clinker of 58MPa greater than 55%, 28 day intensity to described cement clinker.
5. according to claim 1 or 2 or 3 described a kind of high grade general purpose portland cements of mixing Wingdale and zeolite again, it is characterized in that: the calcite content in the described Wingdale rock does not hang down 50%; The zeolite rock is natural product clinoptilolite or mordenite rock, and wherein zeolite content is not less than 40%.
6. according to claim 1 or 2 or 3 described a kind of high grade general purpose portland cements of mixing Wingdale and zeolite again, it is characterized in that: described flyash is the original state ash of power plant emission, and loss on ignition is no more than 8%; Dihydrate gypsum content in the plaster of paris is not less than 90%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102709738A CN102815877A (en) | 2012-07-31 | 2012-07-31 | High-grade general portland cement admixing limestone and zeolite |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102709738A CN102815877A (en) | 2012-07-31 | 2012-07-31 | High-grade general portland cement admixing limestone and zeolite |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772974A (en) * | 2021-09-30 | 2021-12-10 | 辽宁银盛水泥集团有限公司 | High-strength and high-water-resistance cement prepared from waste materials and preparation method thereof |
| CN114477801A (en) * | 2022-02-14 | 2022-05-13 | 中建材中研益科技有限公司 | Low-carbon cement and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057822A (en) * | 1990-06-28 | 1992-01-15 | 清华大学 | Concrete strengthening agent and manufacture method |
| CN1657465A (en) * | 2005-02-04 | 2005-08-24 | 李君先 | Composite cement with less clinker and its production method |
-
2012
- 2012-07-31 CN CN2012102709738A patent/CN102815877A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057822A (en) * | 1990-06-28 | 1992-01-15 | 清华大学 | Concrete strengthening agent and manufacture method |
| CN1657465A (en) * | 2005-02-04 | 2005-08-24 | 李君先 | Composite cement with less clinker and its production method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772974A (en) * | 2021-09-30 | 2021-12-10 | 辽宁银盛水泥集团有限公司 | High-strength and high-water-resistance cement prepared from waste materials and preparation method thereof |
| CN113772974B (en) * | 2021-09-30 | 2022-06-17 | 辽宁银盛水泥集团有限公司 | High-strength and high-water-resistance cement prepared from waste materials and preparation method thereof |
| CN114477801A (en) * | 2022-02-14 | 2022-05-13 | 中建材中研益科技有限公司 | Low-carbon cement and preparation method thereof |
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