CN104108893A - Fly ash activator - Google Patents
Fly ash activator Download PDFInfo
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- CN104108893A CN104108893A CN201310131887.3A CN201310131887A CN104108893A CN 104108893 A CN104108893 A CN 104108893A CN 201310131887 A CN201310131887 A CN 201310131887A CN 104108893 A CN104108893 A CN 104108893A
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- fly ash
- flyash
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Abstract
The invention discloses a fly ash activator, relates to the technical field of materials for improving fly ash activity, and specifically relates to a fly ash activator. The fly ash activator is prepared by homogenizing and stirring the following raw materials in parts by weight: 10 to 30 parts of alum stone, 10 to 20 parts of anhydrous sodium sulphate, 10 to 20 parts of calcium chloride, 10 to 20 parts of sodium hydroxide, and the balance being fly ash or stone flour. The fly ash activator can effectively activate the potential activity of fly ash, increases the addition amount of fly ash, and reduces the amount of cement in concrete. The cost of the activator is maximally reduced at the same time. The fly ash activator can increase the economic profits and social profits of the industry of concrete and products thereof on the basis that the technical effect is not affected, and can realize the energy saving and emission reduction at the same time.
Description
Technical field
The present invention relates to improve flyash activity material technology field, be specifically related to flyash excitant.
Background technology
Have at present both at home and abroad a variety ofly about the measure that improves flyash activity, be summed up mechanical activation, chemical activation, physically activated etc.The trend of domestic comprehensive utilization flyash is that the flyash of focusing on discharging is directly applied, and makes every effort to high volume, has reduced so concrete cost, has higher economic benefit and social benefit.So the research of flyash excitant is the important topic of total utilization of PCA always.Exciting agent has alkali to excite (calcium oxide, sodium hydroxide), sulphate activation (gypsum, Sodium sulfate anhydrous.min(99)), villaumite to excite (sodium-chlor, calcium chloride) etc.The problem that current exciting agent exists is that materials are single, and the inorganicss such as above alkali, salt mix when more can cause some adverse consequencess, destroys concrete durability etc. as whiting, steel bar corrosion and because of alkali-aggregate reaction.In addition, the cost of exciting agent is higher, and the economic benefit that has caused use exciting agent to bring has not significantly affected the popularization of exciting agent.
Summary of the invention
The invention provides flyash excitant, the present invention excites the lateral reactivity of flyash effectively, increases fly-ash-containedly, reduces the consumption of cement in concrete, and reduces the cost of this exciting agent as far as possible.The present invention improves economic benefit and the social benefit of concrete and goods industry thereof under the prerequisite that ensures technique effect, and realizes energy-saving and emission-reduction.
For addressing the above problem, the present invention adopts following technical scheme: flyash excitant, is made through homogenizing, stirring by the raw material of following weight percent: alunite 10～30, Sodium sulfate anhydrous.min(99) 10～20, calcium chloride 10～20, sodium hydroxide 10～20, flyash or stone flour surplus.
Advantage of the present invention: this flyash excitant can excite the lateral reactivity of flyash effectively, the consumption of flyash in increase concrete.Not only can improve concrete workability (workability), and in the situation that not affecting concrete strength, significantly save cement.Taking common C30 concrete as example, generally the total amount of gelling material is 400kg left and right, and wherein flyash accounts for 25% left and right.If we rise to 50% by the ratio of flyash, add flyash excitant simultaneously, can significantly reduce Cost of Concrete.
Cost-saving=(cement unit price-flyash unit price) × 0.4 × 25%-exciting agent folk prescription price.
Wherein, cement is different and different because of region from flyash price, and its two price difference domain of walker is between 180～400.Exciting agent is as the volume calculating according to 1300 yuan/ton 2.5%, and C30 concrete folk prescription consumption is 10kg, and price is 13 yuan.
So, the cost that folk prescription concrete is saved is just between 5～27 yuan.
For the mixed station of the business who produces 1000000 sides per year, the annual cost of saving is just between 5,000,000～2,700 ten thousand, and economic benefit is very considerable.
Embodiment
With best embodiment, the present invention is described in detail below
.
embodiment mono-
Flyash excitant, is made through homogenizing, stirring by the raw material of following weight percent: alunite 10～30, Sodium sulfate anhydrous.min(99) 10～20, calcium chloride 10～20, sodium hydroxide 10～20, flyash or stone flour surplus.
embodiment bis-
Flyash excitant, is made through homogenizing, stirring by the raw material of following weight percent: alunite 10～20, Sodium sulfate anhydrous.min(99) 10～15, calcium chloride 10～15, sodium hydroxide 10～15, flyash or stone flour surplus.
embodiment tri-
Flyash excitant, is made through homogenizing, stirring by the raw material of following weight percent: alunite 20～30, Sodium sulfate anhydrous.min(99) 15～20, calcium chloride 15～20, sodium hydroxide 15～20, flyash or stone flour surplus.
The preparation technology of this exciting agent is: accurately weigh above-mentioned each component raw material, utilize the stirrer with mix and blend function to make through homogenizing, stirring.
The performance index of this exciting agent are pressed table 1.
This exciting agent is for flyash concrete, and the measured result of its mechanical property (compressive strength rate) is in table 2 and table 3.
Brave ancient cooking vessel board P.O42.5 cement, II level flyash, the medium sand of fineness modulus 2.5, ballast grain sizes 5～31.5mm are chosen in test.Exciting agent volume is 2.5%, adds appropriate water reducer simultaneously.
Table 2 material fiting ratio: (kg/m
3)
| Sequence number | Cement | Flyash | Sand | Rubble | Water | Exciting agent (adding other raw materials quality proportion by subtraction) | Water reducer (adding other raw materials quality proportion by subtraction) |
| 1 | 370 | - | 735 | 1090 | 175 | - | 2.5% |
| 2 | 280 | 90 | 735 | 1090 | 175 | - | 2.5% |
| 3 | 200 | 170 | 735 | 1090 | 175 | - | 2.5% |
| 4 | 200 | 170 | 735 | 1090 | 175 | 2.5% | 2.5% |
| 5 | 190 | 180 | 735 | 1090 | 175 | 2.5% | 2.5% |
| 6 | 170 | 200 | 735 | 1090 | 175 | 2.5% | 2.5% |
The total amount of gelling material is decided to be 370kg/m
3, flyash consumption is increased to 200kg/m from zero
3, flyash consumption is at 170kg/m
3time add exciting agent, contrast ultimate compression strength.
Table 3:
| Sequence number | 3d（MPa） | 7d（MPa） | 28d（MPa） | 56d(MPa) |
| 1 | 15.2 | 21.4 | 39.7 | 42.6 |
| 2 | 10.9 | 15.5 | 27.6 | 35.8 |
| 3 | 9.7 | 14.1 | 24.5 | 34.9 |
| 4 | 13.0 | 17.7 | 28.0 | 39.3 |
| 5 | 10.3 | 14.9 | 24.3 | 37.8 |
| 6 | 10.1 | 13.6 | 22.6 | 38.8 |
From test-results, we can find out and not use the concrete early strength of exciting agent to reduce the 4th group of concrete (170kg/m along with the increase of flyash consumption
3flyash) not only 28d intensity surpass in reverse the 2nd group of (90kg/m
3flyash), and the 4th group of early strength exceeded the concrete of second group of normal proportioning.So in the concrete of use flyash excitant, the consumption of flyash can reach 170kg completely, and its intensity is completely unaffected.
Finally it should be noted that: obviously, above-described embodiment is only for example of the present invention is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being amplified out thus or variation are still among protection scope of the present invention.
Claims (3)
1. flyash excitant, is characterized in that, is made: alunite 10～30, Sodium sulfate anhydrous.min(99) 10～20, calcium chloride 10～20, sodium hydroxide 10～20, flyash or stone flour surplus by the raw material of following weight percent through homogenizing, stirring.
2. flyash excitant as claimed in claim 1, is characterized in that, by the raw material of following weight percent through homogenizing, stir and make: alunite 10～20, Sodium sulfate anhydrous.min(99) 10～15, calcium chloride 10～15, sodium hydroxide 10～15, flyash or stone flour surplus.
3. flyash excitant as claimed in claim 1, is characterized in that, by the raw material of following weight percent through homogenizing, stir and make: alunite 20～30, Sodium sulfate anhydrous.min(99) 15～20, calcium chloride 15～20, sodium hydroxide 15～20, flyash or stone flour surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131887.3A CN104108893A (en) | 2013-04-17 | 2013-04-17 | Fly ash activator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131887.3A CN104108893A (en) | 2013-04-17 | 2013-04-17 | Fly ash activator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104108893A true CN104108893A (en) | 2014-10-22 |
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ID=51705906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310131887.3A Pending CN104108893A (en) | 2013-04-17 | 2013-04-17 | Fly ash activator |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330189A (en) * | 2015-12-03 | 2016-02-17 | 甘肃土木工程科学研究院 | Coal ash activating agent and low-cost cement prepared through same |
| CN106220020A (en) * | 2016-08-22 | 2016-12-14 | 安徽省高迪环保股份有限公司 | A kind of pulverized fuel ash cement exciting agent |
| CN106277868A (en) * | 2016-08-22 | 2017-01-04 | 安徽省高迪环保股份有限公司 | A kind of high strenght flyash cement |
| CN106316176A (en) * | 2016-08-22 | 2017-01-11 | 安徽省高迪环保股份有限公司 | Fly ash cement |
| CN106365485A (en) * | 2016-08-22 | 2017-02-01 | 安徽省高迪环保股份有限公司 | Processing method of fly ash cement exciting agent |
| CN106673478A (en) * | 2016-12-11 | 2017-05-17 | 孙祎 | Preparation method of stable environment-friendly type coal ash exciting agent |
| CN106746812A (en) * | 2016-12-27 | 2017-05-31 | 常州市阿曼特化工有限公司 | A kind of method that flyash excitant is prepared based on palma |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473785A (en) * | 2003-08-08 | 2004-02-11 | 鞠秉秀 | Flyash excitant |
| CN1557765A (en) * | 2004-02-06 | 2004-12-29 | 杰 王 | Cement material fly-ash activity excitant |
| CN1673161A (en) * | 2005-03-24 | 2005-09-28 | 张坦然 | Composite cement admixture |
| CN101081726A (en) * | 2006-05-29 | 2007-12-05 | 李跃宏 | Granulating blast-furnace slag powder modifier |
| CN101164951A (en) * | 2007-09-28 | 2008-04-23 | 孔令骥 | High-strength composite cement additive |
| CN102173633A (en) * | 2011-03-04 | 2011-09-07 | 攀枝花九鼎建材有限责任公司 | Activator for improving reactivity of fly ash in cement |
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2013
- 2013-04-17 CN CN201310131887.3A patent/CN104108893A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473785A (en) * | 2003-08-08 | 2004-02-11 | 鞠秉秀 | Flyash excitant |
| CN1557765A (en) * | 2004-02-06 | 2004-12-29 | 杰 王 | Cement material fly-ash activity excitant |
| CN1673161A (en) * | 2005-03-24 | 2005-09-28 | 张坦然 | Composite cement admixture |
| CN101081726A (en) * | 2006-05-29 | 2007-12-05 | 李跃宏 | Granulating blast-furnace slag powder modifier |
| CN101164951A (en) * | 2007-09-28 | 2008-04-23 | 孔令骥 | High-strength composite cement additive |
| CN102173633A (en) * | 2011-03-04 | 2011-09-07 | 攀枝花九鼎建材有限责任公司 | Activator for improving reactivity of fly ash in cement |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105330189A (en) * | 2015-12-03 | 2016-02-17 | 甘肃土木工程科学研究院 | Coal ash activating agent and low-cost cement prepared through same |
| CN106220020A (en) * | 2016-08-22 | 2016-12-14 | 安徽省高迪环保股份有限公司 | A kind of pulverized fuel ash cement exciting agent |
| CN106277868A (en) * | 2016-08-22 | 2017-01-04 | 安徽省高迪环保股份有限公司 | A kind of high strenght flyash cement |
| CN106316176A (en) * | 2016-08-22 | 2017-01-11 | 安徽省高迪环保股份有限公司 | Fly ash cement |
| CN106365485A (en) * | 2016-08-22 | 2017-02-01 | 安徽省高迪环保股份有限公司 | Processing method of fly ash cement exciting agent |
| CN106673478A (en) * | 2016-12-11 | 2017-05-17 | 孙祎 | Preparation method of stable environment-friendly type coal ash exciting agent |
| CN106746812A (en) * | 2016-12-27 | 2017-05-31 | 常州市阿曼特化工有限公司 | A kind of method that flyash excitant is prepared based on palma |
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Address after: Huashan Road, Nangang District of Heilongjiang city in Harbin province 150090 3-5 Sydney Galaxy Residence Internazionale room 2802 Applicant after: HARBIN QIANGSHI CONCRETE TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 150006 Room 411, Harbin Science and Technology Park, No. 434, postal street, Nangang District, Heilongjiang, Harbin Applicant before: Harbin Gongye Daxue Qiangshi Concrete Technology Development Co., Ltd. |
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Address after: 150006 19 km, Harbin double highway, Harbin, Heilongjiang Applicant after: HARBIN QIANGSHI CONCRETE TECHNOLOGY DEVELOPMENT CO., LTD. Address before: 150006 Room 411, Harbin Science and Technology Park, No. 434, postal street, Nangang District, Heilongjiang, Harbin Applicant before: Harbin Gongye Daxue Qiangshi Concrete Technology Development Co., Ltd. |
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Application publication date: 20141022 |