CN103803838B - A kind of accelerating chemicals - Google Patents
A kind of accelerating chemicals Download PDFInfo
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- CN103803838B CN103803838B CN201410067957.8A CN201410067957A CN103803838B CN 103803838 B CN103803838 B CN 103803838B CN 201410067957 A CN201410067957 A CN 201410067957A CN 103803838 B CN103803838 B CN 103803838B
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- Prior art keywords
- accelerating chemicals
- stir
- polymine
- formula
- water
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- 239000000126 substance Substances 0.000 title claims abstract description 42
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 12
- 229920005552 sodium lignosulfonate Polymers 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000004567 concrete Substances 0.000 abstract description 12
- 239000000654 additive Substances 0.000 abstract description 4
- 230000000996 additive effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 4
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011378 shotcrete Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- HOOWDPSAHIOHCC-UHFFFAOYSA-N dialuminum tricalcium oxygen(2-) Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[Al+3].[Al+3].[Ca++].[Ca++].[Ca++] HOOWDPSAHIOHCC-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention relates to a kind of accelerating chemicals, the weight percent of its formula is: polyaluminium sulfate 50 ~ 55%, polymine 4 ~ 6%, sodium lignosulfonate 2 ~ 5%, water 36 ~ 40%; Each component sum is 100%; The method adopting above-mentioned formula to obtain accelerating chemicals for: (1) weighs for subsequent use by above-mentioned formula by institute's expense; (2) polyaluminium sulfate got ready is ground into fine powder, crosses 180 mesh sieves, obtain polyaluminum sulfate aluminium powder for subsequent use; (3) stir soluble in water for gained polyaluminum sulfate aluminium powder, then add to pour in high speed agitator after the polymine got ready and sodium lignosulfonate stir and stir 15 ~ 20 minutes, obtain accelerating chemicals.Accelerating chemicals of the present invention is a kind of alkali-free utilizing the characteristic of each formula materials to prepare, non-stimulated smell, cohesiveness is good, rebound degree is low, later strength storage rate is high concrete additive, is specially adapted to the construction usage such as culvert, bridge, down-hole engineering.
Description
Technical field
The invention belongs to chemical field, particularly a kind of building concrete accelerating chemicals.
Background technology
Hardenfast refers to the admixture that can make the rapid setting and harden of concrete, and accelerating chemicals mainly contains inorganic salts and organism class two kinds.The accelerating chemicals that China commonly uses is after inorganic salts accelerating chemicals mixes concrete, can make concrete initial set in 3 ~ 6min, final set in 5 ~ 9min, 1h just can produce intensity, 1d intensity improves 2 ~ 3 times, but later strength can decline, and 28d intensity is about 70% ~ 80% when not mixing.The rapid hardening early strength function mechanism of accelerating chemicals makes the gypsum in cement become Na
2sO
4, lose delayed coagulation, thus impel C
3a (tricalcium aluminate) is aquation rapidly, and separates out its hydrated product crystal in the solution, causes grout quick solidification.Accelerating chemicals is mainly used in mine working, railway tunnel, diversion culvert, underground works.But existing accelerating chemicals is many in alkalescence, there is certain smell and of long duration have certain damage to human body.
Summary of the invention
The object of this invention is to provide a kind of effect that can reach traditional accelerating chemicals and can reduce again novel accelerating chemicals to human injury.
A kind of accelerating chemicals, the weight percent of its formula is: polyaluminium sulfate 50 ~ 55%, polymine 4 ~ 6%, sodium lignosulfonate 2 ~ 5%, water 36 ~ 40%; Each component sum is 100%;
The method adopting above-mentioned formula to obtain accelerating chemicals is:
(1) weigh for subsequent use by above-mentioned formula by institute's expense;
(2) polyaluminium sulfate got ready is ground into fine powder, crosses 180 mesh sieves, obtain polyaluminum sulfate aluminium powder for subsequent use;
(3) stir soluble in water for gained polyaluminum sulfate aluminium powder, then add to pour in high speed agitator after the polymine got ready and sodium lignosulfonate stir and stir 15 ~ 20 minutes, obtain accelerating chemicals.
By facts have proved that the preferred weight percent of above-mentioned accelerating chemicals formula is: polyaluminium sulfate 53%, polymine 5%, sodium lignosulfonate 4%, water 38%.
Accelerating chemicals of the present invention is a kind of alkali-free utilizing the characteristic of each formula materials to prepare, non-stimulated smell, cohesiveness is good, rebound degree is low, later strength storage rate is high concrete additive, is specially adapted to the construction usage such as culvert, bridge, down-hole engineering.
Embodiment
Accelerating chemicals is a kind of additive, and its doping level only accounts for 1% ~ 3% of cement consumption in concrete, but can make concrete initial set in 1 ~ 3min, final set in 2 ~ 5min.To reach the object of concrete rapid coagulation in repairing or roadway.It is indispensable additive in construction of shotcrete method.Its effect is the hydration and hardening accelerating cement, forms enough intensity in a short period of time, to ensure the requirement of special construction.What adopt due to the traditional accelerating chemicals of China is inorganic salts accelerating chemicals, and cost is lower, but because alkalescence is comparatively strong, has certain infringement to human body.
The present invention, according to practical experience for many years, have developed a kind of novel accelerating chemicals, and the effect of this accelerating chemicals is suitable with inorganic salts accelerating chemicals, but to human body without any injury.The weight percent of its formula is: polyaluminium sulfate 50 ~ 55%, polymine 4 ~ 6%, sodium lignosulfonate 2 ~ 5%, water 36 ~ 40%; Each component sum is 100%.
The method adopting above-mentioned formula to obtain accelerating chemicals is:
(4) weigh for subsequent use by above-mentioned formula by institute's expense;
(5) polyaluminium sulfate got ready is ground into fine powder, crosses 180 mesh sieves, obtain polyaluminum sulfate aluminium powder for subsequent use;
(6) stir soluble in water for gained polyaluminum sulfate aluminium powder, then add to pour in high speed agitator after the polymine got ready and sodium lignosulfonate stir and stir 15 ~ 20 minutes, obtain accelerating chemicals.
The mixing ratio of concrete novel accelerating chemicals of the present invention and prepare sprayed concrete time of coagulation and 28 days compressive strength rate be compared as follows table:
Can be found out by above-mentioned experiment contrast, preferred weight percent of the present invention is: when polyaluminium sulfate 53%, polymine 5%, sodium lignosulfonate 4%, water 38%, and all technical of accelerating chemicals is optimum.
The present invention and other accelerating chemicals concrete test result under same volume is as following table:
The advantage of accelerating chemicals of the present invention is:
1., with the sprayed concrete of concrete novel accelerating chemicals preparation of the present invention, the time of coagulation of cement can meet spraying operation requirement, and rebound degree is low, and later strength is high, and 28 days compressive strength rates all can reach more than 80%.
2. the present invention is with polyaluminium sulfate and polymine for Main Components, the advantage of its other accelerating chemicals existing, and alkalinity is extremely low, and later stage ultimate compression strength reduces little advantage, overcomes again short shortcoming other accelerating chemicals storage period.
Claims (2)
1. an accelerating chemicals, is characterized in that: the weight percent of described accelerating chemicals formula is: polyaluminium sulfate 50 ~ 55%, polymine 4 ~ 6%, sodium lignosulfonate 2 ~ 5%, water 36 ~ 40%; Each component sum is 100%;
The method adopting above-mentioned formula to obtain accelerating chemicals is:
Weigh for subsequent use by above-mentioned formula by institute's expense;
The polyaluminium sulfate got ready is ground into fine powder, crosses 180 mesh sieves, obtain polyaluminum sulfate aluminium powder for subsequent use;
Stir soluble in water for gained polyaluminum sulfate aluminium powder, then add to pour in high speed agitator after the polymine got ready and sodium lignosulfonate stir and stir 15 ~ 20 minutes, obtain accelerating chemicals.
2. accelerating chemicals as claimed in claim 1, is characterized in that: the preferred weight percent of described accelerating chemicals formula is: polyaluminium sulfate 53%, polymine 5%, sodium lignosulfonate 4%, water 38%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067957.8A CN103803838B (en) | 2014-02-27 | 2014-02-27 | A kind of accelerating chemicals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067957.8A CN103803838B (en) | 2014-02-27 | 2014-02-27 | A kind of accelerating chemicals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103803838A CN103803838A (en) | 2014-05-21 |
| CN103803838B true CN103803838B (en) | 2015-08-12 |
Family
ID=50701285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410067957.8A Active CN103803838B (en) | 2014-02-27 | 2014-02-27 | A kind of accelerating chemicals |
Country Status (1)
| Country | Link |
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| CN (1) | CN103803838B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481280B (en) * | 2015-11-06 | 2018-01-02 | 湖北工业大学 | A kind of alkali-free chlorine-free accelerator based on PASiC and/or PASSi |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407954A (en) * | 1999-12-08 | 2003-04-02 | Mbt控股有限公司 | Preparation of concrete accelerator |
| CN102219426A (en) * | 2011-04-15 | 2011-10-19 | 中铁隧道集团有限公司 | Low-alkaline liquid accelerating agent and preparation method thereof |
| CN103241972A (en) * | 2012-02-05 | 2013-08-14 | 张云侠 | Preparation method for sodium aluminate concrete accelerator |
| CN103553406A (en) * | 2013-09-27 | 2014-02-05 | 中国建筑材料科学研究总院 | Alkali and chlorine-free liquid setting accelerator based on industrial polyaluminium sulfate and its preparation method |
-
2014
- 2014-02-27 CN CN201410067957.8A patent/CN103803838B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1407954A (en) * | 1999-12-08 | 2003-04-02 | Mbt控股有限公司 | Preparation of concrete accelerator |
| CN102219426A (en) * | 2011-04-15 | 2011-10-19 | 中铁隧道集团有限公司 | Low-alkaline liquid accelerating agent and preparation method thereof |
| CN103241972A (en) * | 2012-02-05 | 2013-08-14 | 张云侠 | Preparation method for sodium aluminate concrete accelerator |
| CN103553406A (en) * | 2013-09-27 | 2014-02-05 | 中国建筑材料科学研究总院 | Alkali and chlorine-free liquid setting accelerator based on industrial polyaluminium sulfate and its preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 用硫酸铝配制混凝土速凝剂的研究现状;兰明章等;《混凝土》;20120930(第9期);第39-42页 * |
| 硫酸铝型混凝土速凝剂的研究现状;宋敬亮等;《公路交通科技》;20131130(第11期);第241-243页 * |
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| Publication number | Publication date |
|---|---|
| CN103803838A (en) | 2014-05-21 |
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Address after: No. 138, Qingyuan community democracy group, Sancha Town, Bozhou District, Zunyi City, Guizhou Province Patentee after: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Address before: 563101 Guizhou city of Zunyi province Sancha town Zunyi County Bai village Patentee before: ZUNYI HENGXIN CHEMICAL Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Accelerator Effective date of registration: 20211207 Granted publication date: 20150812 Pledgee: Guizhou Zunyi Rural Commercial Bank Co.,Ltd. Pledgor: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Registration number: Y2021980014389 |
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Date of cancellation: 20230330 Granted publication date: 20150812 Pledgee: Guizhou Zunyi Rural Commercial Bank Co.,Ltd. Pledgor: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Registration number: Y2021980014389 |
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Denomination of invention: A type of accelerator Effective date of registration: 20230407 Granted publication date: 20150812 Pledgee: Guizhou Zunyi Rural Commercial Bank Co.,Ltd. Pledgor: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Registration number: Y2023980037618 |
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Date of cancellation: 20230428 Granted publication date: 20150812 Pledgee: Guizhou Zunyi Rural Commercial Bank Co.,Ltd. Pledgor: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Registration number: Y2023980037618 |
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Denomination of invention: A rapid setting agent Effective date of registration: 20231227 Granted publication date: 20150812 Pledgee: Guizhou Bank Co.,Ltd. Zunyi Honghuagang Branch Pledgor: Guizhou zunhui Environmental Protection Technology Co.,Ltd. Registration number: Y2023520000075 |