CN1057248A - High-strength shotcrete accelerator - Google Patents
High-strength shotcrete accelerator Download PDFInfo
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- CN1057248A CN1057248A CN 91103818 CN91103818A CN1057248A CN 1057248 A CN1057248 A CN 1057248A CN 91103818 CN91103818 CN 91103818 CN 91103818 A CN91103818 A CN 91103818A CN 1057248 A CN1057248 A CN 1057248A
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- aluminite
- powder
- tai
- ace
- sodium metaaluminate
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Abstract
A kind of high-strength shotcrete accelerator, be formulated by a certain percentage by sodium metaaluminate, Tai-Ace S 150, aluminite, gas mud, silica flour, water reducer etc.Its production technique is: with sodium metaaluminate, Tai-Ace S 150, aluminite, gas mud oven dry, be crushed to certain particle then earlier, by the material rate mixing and stirring of wanting required for the present invention, promptly produce product of the present invention.The present invention has that alkalescence is little, and early strength is good, and the later strength storage rate is more than 90%, and anti-permeability performance is strong, in advantages such as shrinkage, springback capacity are little.
Description
The present invention relates to a kind of material of construction.
At present both at home and abroad the Hardenfast that uses all is to be made by overbased materials, so exist following deficiency: the one, after concrete mixes accelerating chemicals, the early strength attenuating, later strength even descend 20～60% makes construction quality be subjected to great influence; The 2nd, big to workmen's corrodibility; The 3rd, water-absorbent is big, need watering maintenance in time behind construction of shotcrete, otherwise construction quality is more inferior; The 4th, contract with dry rate is big, and anti-permeability performance is poor, and springback capacity is big etc.
The objective of the invention is to avoid above-mentioned weak point of the prior art and provide a kind of alkalescence little, early strength is good, the later strength storage rate is more than 90%, corrodibility is little, anti-permeability performance is strong, water-absorbent is little, the prescription and the production technique thereof of contract with dry rate, high-strength shotcrete accelerator that springback capacity is little.
Purpose of the present invention can realize by following measure: the present invention is by (weight ratio): 15～30% sodium metaaluminates, 8～17% Tai-Ace S 150,45～65% aluminite, 7～15% gas muds, 3～6% silica flours, 0.5～3% water reducer powder etc. are formulated.
The present invention is raw materials used to be contained the composition requirement and is: contain sodium oxide 28～35%, trioxygen-containingization two aluminium 40～50% in the sodium metaaluminate; Sulfur acid aluminium is more than 90% in the Tai-Ace S 150; Trioxygen-containingization two aluminium 10～20% in the aluminite, contain silicon-dioxide 25～35%, trioxygen-containing sulphur 15～25%.Optimum formula of the present invention is (weight ratio): 17～25% sodium metaaluminates, 10～14% Tai-Ace S 150,55～60% aluminite, 8～12% gas muds, 4～5% silica flours, 1～2% water reducer powder.
The production technique of high-strength shotcrete accelerator of the present invention is: sodium metaaluminate, Tai-Ace S 150, aluminite, gas mud are dried and be crushed to 180～220 orders respectively, then according to the above ratio scope with sodium metaaluminate powder, sulfuric acid aluminium powder, aluminite powder, gas mud powder, silica flour, water reducer powder mixing and stirring, once more batch mixing is carried out ball milling, pulverizing, it is further reached mix and desired fineness 180～220 orders, promptly make product of the present invention.
The present invention is 110～1250 ℃ to the bake out temperature of sodium metaaluminate, drying time 2～3 hours; Bake out temperature to Tai-Ace S 150 is 86～190 ℃, and drying time is 6～10 hours; Bake out temperature to aluminite is 110～150 ℃, and drying time is 1～3 hour; More than three kinds of raw materials all contain crystal water, drying time is advisable to remove contained crystal water, is 110～220 ℃ to the bake out temperature of gas mud, drying time is 6～12 hours.
The invention has the advantages that: technology is simple, easy to make, raw materials used alkalescence is little, and good early strength is arranged, and the later strength storage rate is more than 90%, improved construction quality, can reach higher anti-permeability performance, have no side effect, human body skin is not had corrosion substantially, advantages such as contract with dry rate is little, and springback capacity is low.
Further the present invention is illustrated with the following examples, but is not restriction the present invention.
Embodiment 1:
Sodium metaaluminate was toasted 3 hours in temperature is 800 ℃ of stoves, was 150 ℃ to the storing temperature of Tai-Ace S 150, and 7 hours time was 120 ℃ to the storing temperature of aluminite, 2 hours time, the drying time of above three kinds of raw materials had been removed contained crystal water basically; Temperature to the oven dry of gas mud is 160 ℃, and drying time is 10 hours.Then the raw material after the above-mentioned oven dry is pulverized, the fineness of pulverizing is 200 orders.
Getting various raw material required for the present invention is respectively (by weight): sodium metaaluminate powder 20%, sulfuric acid aluminium powder 12%, aluminite powder 53%, gas mud powder 10%, silica flour 4%, water reducer powder 1%, above-mentioned raw materials is carried out mixing and stirring, put into ball mill again and pulverize, make its mixing more even, fineness also further meets the requirements, and promptly makes high-strength shotcrete accelerator.
Embodiment 2:
With sodium metaaluminate baking 2 hours in temperature is 900 ℃ stove, bake out temperature to Tai-Ace S 150 is 180 ℃, drying time is 6 hours, bake out temperature to aluminite is 140 ℃, time is 1.5 hours, is 180 ℃ to the bake out temperature of gas mud, and drying time is 8 hours, then the raw material after the above-mentioned oven dry is pulverized, the fineness of pulverizing is 220 orders.
Get raw material required for the present invention (by weight): sodium metaaluminate powder 18%, sulfuric acid aluminium powder 15%, aluminite powder 50%, gas mud powder 12%, silica flour 3%, water reducer powder 2%, and carry out mixing and stirring, and then put into ball mill and further mix stirring again, pulverize, product of the present invention promptly made.
Embodiment 3:
Sodium metaaluminate under 300 ℃ of temperature, was toasted 3 hours; Bake out temperature to Tai-Ace S 150 is 100 ℃, and the time is 9 hours; Bake out temperature to aluminite is 130 ℃, and the time is 3 hours; Bake out temperature to gas mud is 150 ℃, and drying time is 11 hours, then above-mentioned raw materials is pulverized, and makes the granularity of pulverizing reach 210 orders.
Get raw material required for the present invention (by weight): sodium metaaluminate powder 21%, sulfuric acid aluminium powder 10%, aluminite powder 49%, gas mud powder 13%, silica flour 4.5%, water reducer powder 2.5%, with its mixing and stirring, and then put into ball mill and further pulverize the mixing stirring, promptly make product of the present invention.
Claims (5)
1, a kind of high-strength shotcrete accelerator is characterized in that: it is to be made by (weight ratio) 15～30% sodium metaaluminates, 8～17% Tai-Ace S 150,45～65% aluminite, 7～15% gas muds, 3～6% silica flours, 0.5～3% water reducer powder etc.
2, high-strength shotcrete accelerator according to claim 1 is characterized in that: contain sodium oxide 28～35%, trioxygen-containingization two aluminium 40～50% in the sodium metaaluminate; Sulfur acid aluminium is more than 90% in the Tai-Ace S 150; Trioxygen-containingization two aluminium 10～20% in the aluminite, contain silicon-dioxide 25～35%, trioxygen-containing sulphur 15～25%.
3, high-strength shotcrete accelerator according to claim 1, it is characterized in that its optimum proportion is than being (weight ratio): sodium metaaluminate 17～25%, Tai-Ace S 150 10～14%, aluminite 55～60%, gas mud 8～12%, silica flour 4～5%, water reducer powder 1～2%.
4, a kind of production technique of high-strength shotcrete accelerator, it is characterized in that: with sodium metaaluminate, Tai-Ace S 150, aluminite, gas mud, dry and be crushed to 180～220 orders respectively, then according to the above ratio with sodium metaaluminate powder, sulfuric acid aluminium powder, aluminite powder, gas mud powder, silica flour, water reducer powder mixing and stirring, and then put into ball mill and further pulverize mixing, make it meet the requirements of fineness 180～220 orders, promptly make product of the present invention.
5, the production technique of high-strength shotcrete accelerator according to claim 4 is characterized in that: the bake out temperature to sodium metaaluminate is 110～1250 ℃, and drying time is 2～3 hours; Bake out temperature to Tai-Ace S 150 is 86～190 ℃, and drying time is 6～10 hours; Bake out temperature to aluminite is 110～150 ℃, and drying time is 1～3 hour; Bake out temperature to gas mud is 110～200 ℃, and drying time is 6～12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103818 CN1057248A (en) | 1991-06-03 | 1991-06-03 | High-strength shotcrete accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91103818 CN1057248A (en) | 1991-06-03 | 1991-06-03 | High-strength shotcrete accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1057248A true CN1057248A (en) | 1991-12-25 |
Family
ID=4906282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91103818 Pending CN1057248A (en) | 1991-06-03 | 1991-06-03 | High-strength shotcrete accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057248A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2792629A1 (en) * | 1999-04-26 | 2000-10-27 | Rhodia Chimie Sa | Preparation of a liquid concrete-setting accelerator for an hydraulic binder |
| CN1304529C (en) * | 2004-05-25 | 2007-03-14 | 李郁忠 | Soil solidifying agent and its preparing method |
| CN100363290C (en) * | 1999-12-08 | 2008-01-23 | 建筑研究及技术有限责任公司 | Preparation of concrete accelerator |
| CN102219433A (en) * | 2011-05-04 | 2011-10-19 | 山西潞安环保能源开发股份有限公司 | Low-resilience high-strength sprayed concrete liquid accelerating agent and preparation method thereof |
| CN102464466A (en) * | 2010-11-02 | 2012-05-23 | 淮南矿业(集团)有限责任公司 | Shotcrete additive and spraying technology of shotcrete |
| CN102992685A (en) * | 2012-11-22 | 2013-03-27 | 中铁隧道集团有限公司 | Powdery accelerator for calcium-containing aluminosilicate cementing material |
| CN103755212A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Concrete accelerator |
| CN105130265A (en) * | 2015-09-11 | 2015-12-09 | 王嘉文 | Efficient concrete accelerator |
| CN105236812A (en) * | 2015-09-11 | 2016-01-13 | 王嘉文 | Concrete accelerator |
| CN109293275A (en) * | 2018-10-22 | 2019-02-01 | 昆明瑞通混凝土外加剂有限公司 | A kind of dedicated high-strength compound water-reducing agent of gunite concrete and production technology |
-
1991
- 1991-06-03 CN CN 91103818 patent/CN1057248A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000064833A1 (en) * | 1999-04-26 | 2000-11-02 | Rhodia Chimie | Method for producing a liquid setting accelerator for a hydraulic binder |
| FR2792629A1 (en) * | 1999-04-26 | 2000-10-27 | Rhodia Chimie Sa | Preparation of a liquid concrete-setting accelerator for an hydraulic binder |
| CN100363290C (en) * | 1999-12-08 | 2008-01-23 | 建筑研究及技术有限责任公司 | Preparation of concrete accelerator |
| CN1304529C (en) * | 2004-05-25 | 2007-03-14 | 李郁忠 | Soil solidifying agent and its preparing method |
| CN102464466B (en) * | 2010-11-02 | 2013-08-21 | 淮南矿业(集团)有限责任公司 | Shotcrete additive and spraying technology of shotcrete |
| CN102464466A (en) * | 2010-11-02 | 2012-05-23 | 淮南矿业(集团)有限责任公司 | Shotcrete additive and spraying technology of shotcrete |
| CN102219433B (en) * | 2011-05-04 | 2015-06-10 | 山西潞安环保能源开发股份有限公司 | Low-resilience high-strength sprayed concrete liquid accelerating agent and preparation method thereof |
| CN102219433A (en) * | 2011-05-04 | 2011-10-19 | 山西潞安环保能源开发股份有限公司 | Low-resilience high-strength sprayed concrete liquid accelerating agent and preparation method thereof |
| CN102992685A (en) * | 2012-11-22 | 2013-03-27 | 中铁隧道集团有限公司 | Powdery accelerator for calcium-containing aluminosilicate cementing material |
| CN103755212A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Concrete accelerator |
| CN105130265A (en) * | 2015-09-11 | 2015-12-09 | 王嘉文 | Efficient concrete accelerator |
| CN105236812A (en) * | 2015-09-11 | 2016-01-13 | 王嘉文 | Concrete accelerator |
| CN109293275A (en) * | 2018-10-22 | 2019-02-01 | 昆明瑞通混凝土外加剂有限公司 | A kind of dedicated high-strength compound water-reducing agent of gunite concrete and production technology |
| CN109293275B (en) * | 2018-10-22 | 2021-01-05 | 昆明瑞通混凝土外加剂有限公司 | Special high-strength composite water reducing agent for sprayed concrete and production process thereof |
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