CN1087007C - Composite high-strength building lime ash and production process therefor - Google Patents
Composite high-strength building lime ash and production process therefor Download PDFInfo
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- CN1087007C CN1087007C CN97118195A CN97118195A CN1087007C CN 1087007 C CN1087007 C CN 1087007C CN 97118195 A CN97118195 A CN 97118195A CN 97118195 A CN97118195 A CN 97118195A CN 1087007 C CN1087007 C CN 1087007C
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- 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
- C04B2/00—Lime, magnesia or dolomite
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Abstract
The present invention relates to composite building lime powder with high strength, particularly to building lime (mortar), and a technological method for producing the building lime powder with high strength, which belongs to the field of building materials. The product mainly comprises calcium oxide, magnesium oxide, calcium carbonate, magnesium carbonate, active silicon dioxide and aluminum sesquioxide, wherein the content of the calcium oxide and the magnesium oxide is from 16% to 40%, the content of the calcium carbonate and the magnesium carbonate is from 9% to 20%, the content of the active silicon dioxide is from 25% to 30%, and the content of the active aluminum sesquioxide is from 10% to 13%. Simultaneously, the product is also matched with 5 to 10% of diatomite. When the composite lime powder with high strength is used for preparing the mortar, little cement or no cement is used so that the whole construction cost is lowered.
Description
The present invention relates to a kind of composite high-strength paring stone ashes, mortar promptly for building (mortar) and this high-strength building lime powder processing method of production belong to building material field.
Ash (sand) slurry is the most general material of construction of architectural use, existing mortar is to make after cement, lime putty and sand are mixed by a certain percentage on the spot, lime putty is to add water with unslaked lime to clear up and form, because unslaked lime in production, transportation and digestion process, all is extensive management, 1 ton of fat lime of every production, need to consume Wingdale 1.5-1.7 ton, every production 1 kilogram of raw lime needs heat dissipation 1600-2200kcal/kg, and need to adopt firewood and hay when firing unslaked lime be fuel, causes ecological damage; Unslaked lime is blocky, therefore in transportation, storage and digestion process, all can't accurately measure, unslaked lime is the meeting dust from flying when loading-unloading vehicle, can discharge a large amount of calcium hydroxide colloids when clearing up, water quality and environment around directly polluting, the instream factor less than 80% of unslaked lime.
The objective of the invention is to invent a kind of composite high-strength paring stone ashes that mainly contains calcium oxide, magnesium oxide, lime carbonate, magnesiumcarbonate, active silica and aluminium sesquioxide.
The objective of the invention is to invent a kind of the efficient oxidation calcium+magnesian content is 16%-40%, the content of lime carbonate+magnesiumcarbonate is 9%-20%, but the independent component content of calcium oxide or magnesium oxide can not be zero, the independent component content of lime carbonate or magnesiumcarbonate can not be zero, and its active silica content is the composite high-strength paring stone ashes that its active aluminium sesquioxide content of 25%-30% is 10%-13%.
The objective of the invention is to invent and a kind ofly be mixed with in the high reactivity mixture above-mentioned, also admixture 5-10% diatomite is again formed composite high-strength paring stone ashes; Use the mortar of the compound lime powder of this high strength preparation, have preferably workability and have than the much higher physical strength of carbonate-free lime cream slurry preparation mortar.
The objective of the invention is to produce this composite high-strength paring stone ashes method is to mix closing the efficient oxidation calcium+magnesium oxide, lime carbonate+magnesiumcarbonate, active silica and active aluminium sesquioxide raw material, and or be mixed with diatomaceous various raw material and be mixed in proportion, grinding fineness through machinery is that 0.080 millimeter hole sizer tails over smaller or equal to 10%.
The composite high-strength paring stone ashes product standard intensity that the objective of the invention is to invent is greater than 7.0MPa.
Composite high-strength paring stone ashes of the present invention is to form like this: mainly contain calcium oxide in this product, magnesium oxide, lime carbonate, magnesiumcarbonate, active silica and aluminium sesquioxide, wherein the efficient oxidation calcium+magnesian content is 16%-40% (weight percent), but the independent component content of calcium oxide or magnesium oxide can not be zero, the content of lime carbonate+magnesiumcarbonate is 9%-20% (weight percent), but the independent component content of lime carbonate or magnesiumcarbonate can not be zero, the content of active silica is 25%-30% (weight percent), and the content of active aluminium sesquioxide is 10%-13% (weight percent).Press in the composite high-strength paring stone ashes product of above-mentioned raw materials preparation also the diatomite of admixture 5-10% (weight percent) more simultaneously; But the diatomite that adds, its dioxide-containing silica need more than or equal to 65% (weight percent), and aluminium sesquioxide content needs smaller or equal to 15% (weight percent).
When production composite high-strength paring stone of the present invention ashes product, the efficient oxidation calcium+magnesium oxide of its adding can directly obtain from unslaked lime; Lime carbonate+the magnesiumcarbonate of its adding can directly obtain from Wingdale; The active silica and the active aluminium sesquioxide that add can directly obtain from flyash, volcanic ash, granulated blast-furnace slag silicon ash or cinder.Surplus is an impurity.
The production method of composite high-strength paring stone ashes of the present invention is to mix containing effective calcium oxide+magnesium oxide, lime carbonate+magnesiumcarbonate, effective active silicon-dioxide and active aluminium sesquioxide raw material, and or be mixed with diatomaceous raw material and be mixed in proportion, grinding fineness through machinery is that 0.080 millimeter hole sizer tails over smaller or equal to 10% and gets final product.The used unslaked lime of production composite high-strength paring stone of the present invention ashes preferably uses the unslaked lime of being fired by the hard coal and the Wingdale of centimetre stone size in the tunnel kiln, this helps the surrounding environment protection.
Composite high-strength paring stone ashes product of the present invention adopts 1: 2.5 cement-sand ratio, and sand adopts under the standard sand condition, and its normal intensity value is greater than 7.0MPa.
The unslaked lime that production composite high-strength lime powder of the present invention, its unslaked lime can select for use city's field boundary to buy; The unslaked lime that also can adopt the hard coal of the present invention and the Wingdale of centimetre stone size directly in the tunnel kiln, to fire.But using the great advantage of the unslaked lime of explained hereafter of the present invention is the production efficiency height, fuel economy, and ecotope around the protection, another benefit is in production product process of the present invention, the mixed comminution time of various raw materials is short, can enhance productivity.The measure unit of filling a prescription described in the specification sheets of the present invention all is weight percentage.
In product of the present invention, owing to all be that to select natural mineral for use be that basic raw material mixes, therefore except that above-mentioned major ingredient, also may contain some in the product by raw material limestone, unslaked lime, flyash, volcanic ash, other material that raw materials self such as silicon ash or cinder bring is (as clay, silicon metal or other mineral substance etc.), but as long as in composite high-strength lime powder product of the present invention, the final the efficient oxidation calcium+magnesium oxide that mainly has, lime carbonate+magnesiumcarbonate, the content of effective active silicon-dioxide and aluminium sesquioxide is in the proportional range that requires, and then other minor consistuent does not have direct shadow noon to product performance of the present invention.
Because the fineness of composite high-strength lime powder product of the present invention should be controlled at the 0.080mm square hole sieve and tail over smaller or equal to 10% (requiring identical to cement fineness with national standard).Like this after product of the present invention and sand and cement being mixed in proportion, adding entry again, its mixture to clear up speed fast, can form Ca (HO) 2 and Mg (HO) 2 colloids of a large amount of high densitys at short notice; Contain a large amount of active SiO2 and AL2O3 in the high-quality high reactivity blending material in the raw material, under the alkaline excitation effect of liming product C a (HO) 2 water, can generate moisture Dicalcium Phosphate (Feed Grade) and moisture aluminic acid dicalcium with hydraulicity:
Lime carbonate and magnesiumcarbonate have participated in reaction in the aquation process of lime, can generate calcium aluminate of hydrated carbon with active A L2O3 in alkaline Ca (HO) 2 colloids:
Single carbon calcium aluminate: 3CaO.AL2O3. (Ca.Mg) CO3.11H2O
Three carbon calcium aluminate: 3CaO.AL2O3.3 (Ca.Mg) CO3.30H2O
Thereby make CacCO3+MgCO3 enter aquation body inside, and prove that CacCO3+MgCO3 is better than pure lime carbonate to the lime white Effect on Performance theoretically with in the scientific practice in the lime hydration process.This shows, various raw mineral materialss in the composite high-strength lime powder of the present invention, complicated hydration reaction has taken place in hydration process each other, generated a hydrated product that row have higher mechanical strength, make the mortar of final preparation satisfy construction work fully to building the requirement of white washed wall mortar by laying bricks or stones, and avoided carbonate-free lime mortar later strength retraction phenomenon.
In composite high-strength paring stone ashes of the present invention, owing to being mixed simultaneously, multiple mixing material contains in the magnesia and calcareous unslaked lime, can improve the lime performance and (as reduce contract with dry rate, increase degree of compactness, improve workability), can improve the physical strength of lime mortar again, so all kinds of mixing materials in the composite high-strength paring stone ashes of invention, it never is the simple addition of various materials, but learn from other's strong points to offset one's weaknesses mutually, producing the excellent results that single mixing material can not produce, is a kind of ＂ mineral hybridization ＂ effect.
The unslaked lime that the present invention uses preferably uses hard coal of the present invention directly to fire unslaked lime in the tunnel kiln with the Wingdale of centimetre stone size and makes, and helps the surrounding environment protection and the eubiosis like this.
In the volcanic ash that adds in the product of the present invention, its silicon-dioxide is greater than and equals 65%, and aluminium sesquioxide is less than and equals 20%, satisfies stone content smaller or equal to 1.5%, and activity is pressed the ISO9001 standard test.In the flyash, its silicon-dioxide is greater than and equals 53%, and aluminium sesquioxide is less than and equals 25%, and loss on ignition is smaller or equal to 5.0%.In the granulated blast-furnace slag (grain slag), its silicon-dioxide is more than or equal to 10%, and calcium oxide is more than or equal to 30%.In the silicon ash, its silicon-dioxide is more than or equal to 90%.In the cinder, its silicon-dioxide is more than or equal to 50%, and aluminium sesquioxide is smaller or equal to 25%, and loss on ignition is smaller or equal to 5.0%.
In the product of the present invention, be added into a certain amount of diatomite again after, the workability of its whole prod can be better.Table 1 is common carbonate-free lime mortar and composite high-strength lime powder mortar performance contrast table of the present invention:
| Title | Ultimate compression strength (Kgf/cm2) | |
| 14 days | 28 days | |
| Ground lime mortar | 42 | 39 |
| Composite high-strength lime powder (1) | 59 | 80 |
| Composite high-strength lime powder (2) | 43 | 76 |
| Composite high-strength lime powder (3) | 48 | 73 |
| Composite high-strength lime powder (4) | 45 | 70 |
Annotate: cement-sand ratio is 1: 2.5 in the table 1, and sand adopts standard sand table 2 to send material of construction product quality inspection station, Yunnan Province for composite high-strength lime powder of the present invention
No. the 082nd, check (survey) report 96 committees
| The check numbering | The sample numbering | Kind | Stability | The thick water of the mutatis mutandis % of scale amount | Fineness % | |||||||
| The pat method | The Lei Shi method | |||||||||||
| mm | Conclusion | |||||||||||
| 6-5277 | 1 | The high strength lime powder | Qualified | 0 | Qualified | 31.6 | 7.6 | |||||
| Intensity (MPa) | Mortar fluidity | Loss on ignition (%) | Sulphur trioxide (%) | Magnesium oxide (%) | ||||||||
| Anti-folding | Resistance to compression | (m/m) | Water/ash | |||||||||
| 14 days | 28 days | 14 days | 28 days | |||||||||
| 1.6 | 2.4 | 5.9 | 8.0 | / | 0.50 | / | 0.93 | 2.6 | ||||
| Being equipped with (1) this sample carries out (2) this report according to the national cement standard method of inspection and only sample is responsible for annotating (3) stability test specimen curing time and is extended for 7 days | Conclusion | |||||||||||
Table 3 is Yunnan Province building research station test-results one, material: the composite high-strength lime powder; No. 425 slag cement; Special thin mountain, Kunming sand two test-results:
| Strength grade | Proportioning (mass ratio) | Denseness | Delamination degree | Density kg/m3 | 28 days intensity MPa | ||
| Cement | The high strength lime powder | Sand | |||||
| M7.5 | 1 | 0.5 | 5.74 | 72 | 17 | 1995 | 9.72 |
| M5.0 | 1 | 1.0 | 7.66 | 78 | 15 | 1995 | 7.38 |
| M2.5 | 1 | 2.5 | 13.4 | 79 | 16 | 1990 | 4.2 |
Result evaluation:, can prepare that to meet strength grade be M7.5 1, with the composite high-strength lime ash of producing; M5.0; M2.5 standard masonry mortar; 2, Pei Zhi masonry mortar workability, water-retentivity is good; 3, composite high-strength lime ash has use, convenient transportation, advantages such as accurate measurement.
Find out from above data, adopt the mortar of composite high-strength lime powder preparation of the present invention, its workability and good water-retaining property, intensity is more stable, changes traditional lime putty graduation, unstable situation.Under same proportioning strength condition, adopt more than the mortar strength raising 40-20% of mortar ratio with the preparation of carbonate-free lime cream of composite high-strength lime powder preparation, cost is than reducing 3-7% with the every M3 of carbonate-free lime cream mortar; Cement consumption reduces 26-47% than the cement consumption of lime putty mortar, and product is convenient to transport, construction, and ganging of products is accurate, can directly use, and is difficult for causing waste in construction.
When using composite high-strength lime powder of the present invention preparation mortar or mortar, should be according to the quality of local sand, product of the present invention and sand and cement are formulated as certain label mortar in proportion; Quality as local sand higher (river sand or washed-out sand) can need not to add cement directly with just obtaining M5.0 label mortar after product of the present invention and the sand mixed preparing again.This point, any traditional carbonate-free lime cream all can't be accomplished.
Embodiment 1:(does not mix diatomite) with three grades of unslaked lime 40kg (country mark Huaihe River), with the Wingdale material 10kg that contains high-quality lime carbonate+magnesiumcarbonate, mix with the flyash 50kg raw materials that contain active two change silicon and active aluminium sesquioxide, grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, and pack is dispatched from the factory.Select 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand) during use for use, its 28 days compressive strengths reach 73kg/cm2.
Embodiment 2:(does not mix diatomite) to adopt the present invention be fuel with the hard coal, and Wingdale is pulverized centimetre stone size, put into the tunnel kiln and burn out unslaked lime; With 50kg unslaked lime and the Wingdale material 15kg that contains high-quality lime carbonate+magnesiumcarbonate; with contain active two and change the granulated blast-furnace slag of silicon and active aluminium sesquioxide and flyash by 1: 2.5 mixed 35kg raw material; grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, dispatched from the factory in the bag of packing into.During use, by 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand), its 28 days compressive strengths reached 76kg/cm2.
Embodiment 3:(does not mix diatomite) to adopt the present invention be fuel with the hard coal, and Wingdale is pulverized centimetre stone size, put into the tunnel kiln and burn out unslaked lime; With 60kg unslaked lime with contain high-quality lime carbonate+magnesiumcarbonate Wingdale material 20kg; connect 1: 3 mixed 20kg raw material with the granulated blast-furnace slag and the cinders that contain active two change silicon and active aluminium sesquioxide; grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, dispatched from the factory in the bag of packing into.During use, by 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand), its 28 days compressive strengths reached 80kg/cm2.
Embodiment 4: Wingdale being pulverized centimetre stone size, put into the tunnel kiln, is coal fuel with hard coal, fires unslaked lime; With 20kg unslaked lime with contain high-quality lime carbonate+magnesiumcarbonate Wingdale raw material 10kg, diatomite 5kg, containing active two changes the volcanic ash of silicon and active aluminium sesquioxide and cinder raw material (wherein volcanic ash requirement silicon-dioxide was more than or equal to 65% by 1: 3 mixed 65kg, aluminium sesquioxide is smaller or equal to 20%, satisfy stone content smaller or equal to 1.5%), grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, and pack is dispatched from the factory.During use, by 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand), its 28 days compressive strengths reached 70kg/cm2; Product workability and good water-retaining property.
Embodiment 5: directly adopt the three grades of unslaked lime 25kg (country mark Huaihe River) that buy on city's field boundary, with contain high-quality lime carbonate+magnesiumcarbonate Wingdale material 12.5kg, diatomite 5kg, containing the active two flyash 57.5kg raw materials of changing silicon and active aluminium sesquioxide mixes, grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, and pack is dispatched from the factory.Select 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand) during use for use, its 28 days compressive strengths reach 76kg/cm2, product workability and good water-retaining property.
Embodiment 6: Wingdale being pulverized centimetre stone size, put into the tunnel kiln, is fuel with the hard coal, burns out unslaked lime; With 30kg unslaked lime with contain high-quality lime carbonate+magnesiumcarbonate Wingdale material 15kg, diatomite 5kg, contain active two and change the cinder of silicon and active aluminium sesquioxide and powdered coal ash by 1: 4 mixed 50kg, grind in ball mill, making its fineness is that 0.08 millimeter hole sizer tails over smaller or equal to 10%.This moment, product was dry powder, grey black look, dispatched from the factory in the bag of packing into.During use, connect 1: 2.5 cement-sand ratio preparation mortar (sand selection standard sand), its 28 days compressive strengths reach 78kg/cm2, product workability and good water-retaining property.
The mortar of composite high-strength lime powder preparation of the present invention, its product has the dual performance of the air-setting and the hydraulicity concurrently, and have than using carbonate-free lime cream to make mortar physical strength height, did the pressure degree in its 28 days and reach 70-80kgf/cm2, can satisfy the common buildings engineering fully and starch 25-40 number specification of quality building sand (ash) by laying bricks or stones.Adopt composite high-strength lime powder of the present invention preparation mortar, can be less with or without cement, thereby reduce whole construction costs.
Claims (7)
1. composite high-strength paring stone ashes, it is characterized in that mainly containing calcium oxide, magnesium oxide, lime carbonate, magnesiumcarbonate, active silica and aluminium sesquioxide, wherein the efficient oxidation calcium+magnesian content is 16%-40% (weight percent), the independent component content of calcium oxide or magnesium oxide can not be zero, the content of lime carbonate+magnesiumcarbonate is 9%-20% (weight percent), the independent component content of lime carbonate or magnesiumcarbonate can not be zero, the content of active silica is 25%-30% (weight percent), the content of active aluminium sesquioxide is 10%-13% (weight percent), and surplus is an impurity.
2. composite high-strength paring stone ashes according to claim 1 is characterized in that containing the diatomite of 5-10% (weight percent).
3. composite high-strength paring stone ashes according to claim 1 and 2 is characterized in that the diatomite that contains, and its dioxide-containing silica needs more than or equal to 65% (weight percent), and aluminium sesquioxide content needs smaller or equal to 15% (weight percent).
4. composite high-strength paring stone ashes according to claim 1 and 2 is characterized in that the calcium oxide+magnesium oxide that contains directly obtains from unslaked lime, lime carbonate+magnesiumcarbonate directly obtains from Wingdale.
5. composite high-strength paring stone ashes according to claim 1 and 2 is characterized in that the active silica and the active aluminium sesquioxide that contain directly obtain from flyash, volcanic ash, granulated blast-furnace slag, silicon ash or cinder.
6. according to each the production method of composite high-strength paring stone ashes of claim 1-5, it is characterized in that containing calcium oxide, the efficient oxidation magnesium, lime carbonate, magnesiumcarbonate, active silica and active aluminium sesquioxide raw material mixes, and or be mixed with diatomaceous raw material mixing, grinding fineness through machinery is that 0.080 millimeter hole sizer tails over smaller or equal to 10%.
7. composite high-strength building lime powder producing method according to claim 4 is characterized in that used unslaked lime is fired with the Wingdale of centimetre stone size by hard coal to form in the tunnel kiln.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118195A CN1087007C (en) | 1997-11-14 | 1997-11-14 | Composite high-strength building lime ash and production process therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97118195A CN1087007C (en) | 1997-11-14 | 1997-11-14 | Composite high-strength building lime ash and production process therefor |
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| CN1217301A CN1217301A (en) | 1999-05-26 |
| CN1087007C true CN1087007C (en) | 2002-07-03 |
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| CN97118195A Expired - Fee Related CN1087007C (en) | 1997-11-14 | 1997-11-14 | Composite high-strength building lime ash and production process therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626939A (en) * | 2019-01-15 | 2019-04-16 | 北京化工大学 | It is a kind of modified to enhance water-fast white lime cementitious material and preparation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019023339A1 (en) * | 2017-07-25 | 2019-01-31 | Carmeuse North America | Calcium carbonate compositions for use in concrete |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045385A (en) * | 1989-03-06 | 1990-09-19 | 刘永林 | A kind of method of producing lime powder |
| CN1056672A (en) * | 1991-05-30 | 1991-12-04 | 湖北省冶金工业局科研所 | Making method of active lime powder agent for injection metallurgy |
| CN1110667A (en) * | 1994-04-28 | 1995-10-25 | 王玉才 | Coating grade lime powder |
| CN1137551A (en) * | 1996-01-25 | 1996-12-11 | 翟广玉 | Wall painting powder |
-
1997
- 1997-11-14 CN CN97118195A patent/CN1087007C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045385A (en) * | 1989-03-06 | 1990-09-19 | 刘永林 | A kind of method of producing lime powder |
| CN1056672A (en) * | 1991-05-30 | 1991-12-04 | 湖北省冶金工业局科研所 | Making method of active lime powder agent for injection metallurgy |
| CN1110667A (en) * | 1994-04-28 | 1995-10-25 | 王玉才 | Coating grade lime powder |
| CN1137551A (en) * | 1996-01-25 | 1996-12-11 | 翟广玉 | Wall painting powder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626939A (en) * | 2019-01-15 | 2019-04-16 | 北京化工大学 | It is a kind of modified to enhance water-fast white lime cementitious material and preparation |
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| Publication number | Publication date |
|---|---|
| CN1217301A (en) | 1999-05-26 |
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