CN104446213A - Grouting material employing red mud as raw material - Google Patents
Grouting material employing red mud as raw material Download PDFInfo
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- CN104446213A CN104446213A CN201410749332.XA CN201410749332A CN104446213A CN 104446213 A CN104446213 A CN 104446213A CN 201410749332 A CN201410749332 A CN 201410749332A CN 104446213 A CN104446213 A CN 104446213A
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Abstract
The invention discloses a grouting material employing red mud as a raw material. The grouting material used in grouting engineering is a cement-based material, and the cement-based material is poor in stability, low in stone effect and low in binding power. The red mud is an industrial solid waste discharged from aluminum-making industry, so that the utilization rate is low, and the environment is polluted. The grouting material employing the red mud as the raw material comprises the following main components in parts by weight: 50-65 parts of red mud, 4-8 parts of an excitant, 20-40 parts of an active initiator, 1-5 parts of silica fume, 0.5-1 part of a retarder, 0.5-1 part of a surfactant and 0.5-1 part of a water-retaining agent. The grouting material has the advantages of good liquidity, high consolidation strength and wide grouting range, and the slurry is high in binding force with cement concrete and soil in the solidification process. The strength, stone rate and liquidity of the grouting material are improved; the liquidity of the prepared slurry is greater than 15s; the liquidity is still greater than 15s after the slurry is placed for 30 minutes; the stone rate is 99%; the 3d compressive strength is 3.2MPa; and the 28d compressive strength is greater than 12MPa.
Description
Technical field
The injecting paste material of to be a kind of with red mud the be raw material that the present invention relates to, belongs to building material technical field.
Background technology
Red mud is the industrial solid wastes of discharging after Aluminium industry refines aluminum oxide from bauxite, and general large containing oxidation iron, outward appearance is similar to redness of the skin or complexion earth, thus gains the name.And different according to the quality of bauxite, be divided into sintering process, Bayer process and mixed combining method red mud.Average often produces 1 ton of aluminum oxide, incidentally produces 1.0 ~ 2.0 tons of red muds.According to incompletely statistics, the red mud that China discharges every year is up to ten million ton, now add up to deposit exceedance ten million ton, the utilization ratio of red mud is low, utilization ratio is no more than 7%, and a large amount of red muds can not fully effectively utilize, and large-area stockyard can only be relied on to stack, not only occupy a large amount of soil, also serious pollution is caused to environment.The generation of a large amount of red muds causes directly many-sided on the production of the mankind, life and indirectly affects, so reduce output and the harm of red mud to greatest extent, realizes by all kinds of means, the resource utilization of large quantity is extremely urgent.
At present, in the Grouting engineering such as buildings, concrete, a large amount of grout material used is generally cement-based material, other fillers additional, filler mainly contains flyash, slag, slag, coal gangue etc., the pulp stability of this kind of injecting paste material is bad, calculus effect is low, there is the weak point that cohesive force is bad in addition.Patent CN1699245A discloses fly ash base grouting material, and main raw material is adding calcium fly ash, cement, water reducer, admixture etc., but its mobility is poor, and easily causes cement solidification incomplete after using water reducer, does not reach due intensity.Therefore, explore and utilize red mud as main raw material to prepare injecting paste material, effectively can process a large amount of discarded red mud, can improve again the performance of injecting paste material, be highly significant.
Summary of the invention
It take red mud as the injecting paste material of raw material that technical problem to be solved by this invention is just to provide a kind of, the good fluidity of this injecting paste material, and consolidation strength is large, and range of grouting is wide, and slurry is strong in the bonding force of consolidation process and cement concrete and soil.
Above-mentioned technical problem mainly solves by the following technical solutions, take red mud as an injecting paste material for raw material, its main component is counted with parts by weight: red mud 50-65 part, exciting agent 4-8 part, active initiator 20-40 part, SILICA FUME 1-5 part, retardant 0.5-1 part, tensio-active agent 0.5-1 part, water-holding agent 0.5-1 part;
Described red mud is that Bayer process gained red mud is broken through drying, and its final water ratio is calculated in mass percent and is less than 5%;
Described exciting agent is commercially available technical grade dry powder sodium silicate, and its modulus is 1.5-2.0;
Described active initiator is the one or any scalemic thereof of fineness in 300-600 object blast furnace granulated slag, calcining coal gangue, calcined kaolin, natural volcanic ash, slag, flyash;
Described SILICA FUME is commercially available prod, and its fineness is greater than 1000 orders, and silicon-dioxide quality content is greater than 95%;
Described tensio-active agent is one in calcium stearate, fatty acid distribution of coconut oil diglycollic amide or arbitrary proportion mixture;
Described retardant is PHOSPHORIC ACID TECH.GRADE dihydro salt;
Described water-holding agent is commercially available hydroxylated cellulose;
Take the technical scheme of above-mentioned measure, its production technique is as follows:
1, by red mud drying, fragmentation, the dry red mud powder that moisture mass percent is less than 5% is obtained;
2, various raw material is proportionally joined in agravic mixing and blending machine, stir 10min;
3, the material be stirred is encased in moisture-proof packing bag, stand-by.
Geology polymer material is a kind of is exciting agent with alkaline matter, with the mineral material containing aluminosilicate for exciting object, at a certain temperature through depolymerization---the chemical reaction of polycondensation, the inorganic polymer material of a kind of excellent property of formation.For the feature that red mud sodium ions content is high, use ground polymer material synthetic technology, sodium ion in red mud is changed into a part for the exciting agent in ground polymers synthesis, by adding the active material that causes as after calcined kaolin mine tailing, calcining coal gangue, blast furnace slag, slag etc., through ground, polymers synthetic materials reacts, and obtains the injecting paste material that performance is good.
Take the present invention of above-mentioned measure, adopt alkali-activated carbonatite ground polymers technology, using the main raw material of red mud as injecting paste material, by adding active initiator, the alkaline matter in red mud is made to change the material with excitating performance into, by the complex excitation of both exciting agent and red mud, finally improve the intensity of red mud injecting paste material, improve injecting paste material calculus rate, and add SILICA FUME and water-holding agent, greatly increase the mobility of grout material.
Compared with existing cement based grouting material, major advantage has: 1, adopt Industrial Solid Waste in a large number, reduces cost; 2, inorganic polymer polymerization technique is adopted---ground polymer material synthetic technology, improves intensity and the calculus rate of injecting paste material greatly; 3, improve mobility; 4, Industrial Solid Waste consumption is large, protection of the environment, production environmental protection.A new field is opened up in the process not being only red mud, and protection of the environment, also reduces the cost of injecting paste material.The mobility of obtained slurry is greater than 15s, and place after 30 minutes, mobility is still greater than 15s, and calculus rate 99%, 3d ultimate compression strength 3.2MPa, 28d ultimate compression strength is greater than 12MPa.
Embodiment
Embodiment 1
The present invention fills a prescription one:
| Component | Formula (kg) |
| Red mud | 50 |
| Exciting agent modulus=1.5 | 8 |
| Active initiator (400 order blast furnace granulated slag) | 35 |
| Retardant | 1 |
| SILICA FUME | 3 |
| Water-holding agent | 1 |
| Tensio-active agent (calcium stearate, fatty acid distribution of coconut oil diglycollic amide arbitrary proportion) | 0.8 |
Embodiment 2
The present invention fills a prescription two:
| Component | Formula (kg) |
| Red mud | 65 |
| Exciting agent modulus=2.0 | 6 |
| Active initiator (300 order blast furnace granulated slags, flyash, slag, calcined kaolin, calcining coal gangue arbitrary proportion mix) | 30 |
| Retardant | 0.8 |
| SILICA FUME | 5 |
| Water-holding agent | 0.8 |
| Tensio-active agent (calcium stearate) | 0.5 |
Embodiment 3
The present invention fills a prescription three:
| Component | Formula (kg) |
| Red mud | 55 |
| Exciting agent modulus=1.5 | 8 |
| Active initiator (600 order blast furnace granulated slags, flyash, slag, calcined kaolin, natural volcanic ash arbitrary proportion mix) | 40 |
| Retardant | 1 |
| SILICA FUME | 4 |
| Water-holding agent | 0.6 |
| Tensio-active agent (fatty acid distribution of coconut oil diglycollic amide) | 1 |
Embodiment 4
The present invention fills a prescription four:
| Component | Formula (kg) |
| Red mud | 60 |
| Exciting agent modulus=1.5 | 4 |
| Active initiator (500 order flyash, slag, calcined kaolin, calcining coal gangue, the mixing of natural volcanic ash arbitrary proportion mixing arbitrary proportion) | 20 |
| Retardant | 0.5 |
| SILICA FUME | 1 |
| Water-holding agent | 0.8 |
| Tensio-active agent (fatty acid distribution of coconut oil diglycollic amide) | 0.7 |
The preparation method more than filled a prescription is as follows:
1, by red mud drying, fragmentation, the dry red mud powder that water content is less than 5% is obtained;
2, various raw material is proportionally joined in agravic mixing and blending machine, stir 10min;
3, the material be stirred is encased in moisture-proof packing bag, stand-by.
Claims (1)
1. be an injecting paste material for raw material with red mud, it is characterized in that the main component of described injecting paste material is counted with parts by weight: red mud 50-65 part, exciting agent 4-8 part, active initiator 20-40 part, SILICA FUME 1-5 part, retardant 0.5-1 part, tensio-active agent 0.5-1 part, water-holding agent 0.5-1 part;
Described red mud is that Bayer process gained red mud is broken through drying, and its final water ratio is calculated in mass percent and is less than 5%;
Described active initiator is the one or any scalemic thereof of fineness in 300-600 object blast furnace granulated slag, calcining coal gangue, calcined kaolin, natural volcanic ash, slag, flyash;
Described exciting agent is commercially available technical grade dry powder sodium silicate, and its modulus is 1.5-2.0;
Described SILICA FUME is commercially available prod, and its fineness is greater than 1000 orders, and silicon-dioxide quality content is greater than 95%;
Described tensio-active agent is one in calcium stearate, fatty acid distribution of coconut oil diglycollic amide or arbitrary proportion mixture;
Described retardant is PHOSPHORIC ACID TECH.GRADE dihydro salt;
Described water-holding agent is commercially available hydroxylated cellulose;
Take the technical scheme of above-mentioned measure, its production technique is as follows:
One, by red mud drying, fragmentation, the dry red mud powder that moisture mass percent is less than 5% is obtained;
Two, various raw material is proportionally joined in agravic mixing and blending machine, stir 10min;
Three, the material be stirred is encased in moisture-proof packing bag, stand-by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749332.XA CN104446213A (en) | 2014-12-10 | 2014-12-10 | Grouting material employing red mud as raw material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749332.XA CN104446213A (en) | 2014-12-10 | 2014-12-10 | Grouting material employing red mud as raw material |
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| Publication Number | Publication Date |
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| CN104446213A true CN104446213A (en) | 2015-03-25 |
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| CN201410749332.XA Pending CN104446213A (en) | 2014-12-10 | 2014-12-10 | Grouting material employing red mud as raw material |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481538A (en) * | 2015-12-08 | 2016-04-13 | 泉州师范学院 | Environmentally friendly treatment process of red mud |
| CN105481272A (en) * | 2015-12-23 | 2016-04-13 | 山东大学 | Manufacturing methods of geopolymer and precursor thereof, product and application |
| CN105585261A (en) * | 2015-12-23 | 2016-05-18 | 山东大学 | Geopolymer permeable concrete material, preparation method and application |
| CN107265943A (en) * | 2017-06-23 | 2017-10-20 | 华娜 | A kind of injecting paste material and preparation method thereof |
| CN107827398A (en) * | 2017-11-01 | 2018-03-23 | 武汉钢铁有限公司 | A kind of red mud for mine filling ground polymers gravity flowing levelling mortar |
| CN108329004A (en) * | 2018-02-07 | 2018-07-27 | 武汉理工大学 | A kind of red mud base slip casting plugging material |
| CN108383470A (en) * | 2018-03-15 | 2018-08-10 | 山东大学 | A kind of injecting paste material and preparation method thereof that red mud slag coordinate system is standby |
| CN108424047A (en) * | 2018-03-13 | 2018-08-21 | 山东大学 | A kind of red mud base rapid hardening injecting paste material administered suitable for sandy soil stratum grouting and reinforcing |
| CN108455933A (en) * | 2018-03-16 | 2018-08-28 | 山东大学 | A method of directly preparing injecting paste material using aqueous red mud |
| CN108951337A (en) * | 2018-09-30 | 2018-12-07 | 山东省交通科学研究院 | A kind of red mud base light filler expressway extension splicing construction and method |
| CN110028256A (en) * | 2019-04-24 | 2019-07-19 | 山东大学 | A kind of red mud base one-step method geopolymer injecting paste material and preparation method thereof |
| CN110357506A (en) * | 2019-07-30 | 2019-10-22 | 佛山市津明建筑科技有限公司 | A kind of red mud-metakaolin compound ground oligomer gel material and preparation method thereof |
| CN110803890A (en) * | 2019-11-19 | 2020-02-18 | 太原理工大学 | High-red-mud-content geopolymer and preparation method thereof |
| CN110862243A (en) * | 2019-11-19 | 2020-03-06 | 太原理工大学 | Low-cost high-strength red mud-coal series metakaolin geopolymer |
| CN111153672A (en) * | 2020-01-16 | 2020-05-15 | 阳泉煤业（集团）有限责任公司 | Hole sealing material for coal mine gas drainage hole and application thereof |
| CN111205053A (en) * | 2020-01-22 | 2020-05-29 | 王诗友 | Red mud modified cementing powder and preparation process thereof |
| CN111662046A (en) * | 2020-07-06 | 2020-09-15 | 济南大学 | Solid waste based inorganic artificial stone plate and preparation method thereof |
| CN112010578A (en) * | 2020-09-09 | 2020-12-01 | 武汉大学 | Baking-free red mud-based polymer and preparation method thereof |
| CN112870584A (en) * | 2021-01-28 | 2021-06-01 | 山西大学 | Method for extinguishing fire and preventing reburning of coal-based solid waste in coal gangue dump |
| CN114180930A (en) * | 2021-12-31 | 2022-03-15 | 中国海洋大学 | High-water-pressure ultra-large-diameter underwater shield tunnel double-liquid grouting slurry, process and application |
| CN115140972A (en) * | 2022-09-05 | 2022-10-04 | 山东黄河顺成水利水电工程有限公司 | Road paving material utilizing multi-source solid wastes and production process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556545B1 (en) * | 2005-02-03 | 2006-03-06 | 주식회사 오륙개발 | A composition of grout |
| CN101244921A (en) * | 2008-03-20 | 2008-08-20 | 中国葛洲坝集团股份有限公司 | High-strength borehole anchorage agent |
| CN102503324A (en) * | 2011-11-22 | 2012-06-20 | 北京新中岩建材科技有限公司 | Anchoring grouting material as well as preparation method and application thereof |
| CN103482950A (en) * | 2013-09-13 | 2014-01-01 | 刘海锋 | Sandwich layer used for making light partition wall batten |
| CN103626469A (en) * | 2013-12-10 | 2014-03-12 | 广西启利新材料科技股份有限公司 | Aerated building block made of red mud |
| CN103641402A (en) * | 2013-12-09 | 2014-03-19 | 广西启利新材料科技股份有限公司 | Baking-free brick prepared from red mud |
| CN103896503A (en) * | 2014-03-06 | 2014-07-02 | 焦作丁豪科技股份有限公司 | Novel red-mud-based grouting material and preparation method thereof |
| CN104177055A (en) * | 2014-08-21 | 2014-12-03 | 广西启利新材料科技股份有限公司 | Grouting material |
-
2014
- 2014-12-10 CN CN201410749332.XA patent/CN104446213A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100556545B1 (en) * | 2005-02-03 | 2006-03-06 | 주식회사 오륙개발 | A composition of grout |
| CN101244921A (en) * | 2008-03-20 | 2008-08-20 | 中国葛洲坝集团股份有限公司 | High-strength borehole anchorage agent |
| CN102503324A (en) * | 2011-11-22 | 2012-06-20 | 北京新中岩建材科技有限公司 | Anchoring grouting material as well as preparation method and application thereof |
| CN103482950A (en) * | 2013-09-13 | 2014-01-01 | 刘海锋 | Sandwich layer used for making light partition wall batten |
| CN103641402A (en) * | 2013-12-09 | 2014-03-19 | 广西启利新材料科技股份有限公司 | Baking-free brick prepared from red mud |
| CN103626469A (en) * | 2013-12-10 | 2014-03-12 | 广西启利新材料科技股份有限公司 | Aerated building block made of red mud |
| CN103896503A (en) * | 2014-03-06 | 2014-07-02 | 焦作丁豪科技股份有限公司 | Novel red-mud-based grouting material and preparation method thereof |
| CN104177055A (en) * | 2014-08-21 | 2014-12-03 | 广西启利新材料科技股份有限公司 | Grouting material |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481538A (en) * | 2015-12-08 | 2016-04-13 | 泉州师范学院 | Environmentally friendly treatment process of red mud |
| CN105481538B (en) * | 2015-12-08 | 2020-02-18 | 泉州师范学院 | Environment-friendly treatment process for red mud |
| CN105481272A (en) * | 2015-12-23 | 2016-04-13 | 山东大学 | Manufacturing methods of geopolymer and precursor thereof, product and application |
| CN105585261A (en) * | 2015-12-23 | 2016-05-18 | 山东大学 | Geopolymer permeable concrete material, preparation method and application |
| CN107265943A (en) * | 2017-06-23 | 2017-10-20 | 华娜 | A kind of injecting paste material and preparation method thereof |
| CN107827398A (en) * | 2017-11-01 | 2018-03-23 | 武汉钢铁有限公司 | A kind of red mud for mine filling ground polymers gravity flowing levelling mortar |
| CN107827398B (en) * | 2017-11-01 | 2020-12-11 | 武汉钢铁有限公司 | Red mud geopolymer self-leveling mortar for mine backfilling |
| CN108329004A (en) * | 2018-02-07 | 2018-07-27 | 武汉理工大学 | A kind of red mud base slip casting plugging material |
| CN108424047A (en) * | 2018-03-13 | 2018-08-21 | 山东大学 | A kind of red mud base rapid hardening injecting paste material administered suitable for sandy soil stratum grouting and reinforcing |
| CN108383470A (en) * | 2018-03-15 | 2018-08-10 | 山东大学 | A kind of injecting paste material and preparation method thereof that red mud slag coordinate system is standby |
| CN108455933A (en) * | 2018-03-16 | 2018-08-28 | 山东大学 | A method of directly preparing injecting paste material using aqueous red mud |
| CN108951337A (en) * | 2018-09-30 | 2018-12-07 | 山东省交通科学研究院 | A kind of red mud base light filler expressway extension splicing construction and method |
| CN108951337B (en) * | 2018-09-30 | 2023-08-22 | 山东省交通科学研究院 | Red mud-based light filler road extension splicing structure and method |
| CN110028256A (en) * | 2019-04-24 | 2019-07-19 | 山东大学 | A kind of red mud base one-step method geopolymer injecting paste material and preparation method thereof |
| CN110357506A (en) * | 2019-07-30 | 2019-10-22 | 佛山市津明建筑科技有限公司 | A kind of red mud-metakaolin compound ground oligomer gel material and preparation method thereof |
| CN110803890A (en) * | 2019-11-19 | 2020-02-18 | 太原理工大学 | High-red-mud-content geopolymer and preparation method thereof |
| CN110862243B (en) * | 2019-11-19 | 2020-10-02 | 太原理工大学 | Low-cost high-strength red mud-coal series metakaolin geopolymer |
| CN110803890B (en) * | 2019-11-19 | 2020-10-23 | 太原理工大学 | High-red-mud-content geopolymer and preparation method thereof |
| CN110862243A (en) * | 2019-11-19 | 2020-03-06 | 太原理工大学 | Low-cost high-strength red mud-coal series metakaolin geopolymer |
| CN111153672A (en) * | 2020-01-16 | 2020-05-15 | 阳泉煤业（集团）有限责任公司 | Hole sealing material for coal mine gas drainage hole and application thereof |
| CN111205053A (en) * | 2020-01-22 | 2020-05-29 | 王诗友 | Red mud modified cementing powder and preparation process thereof |
| CN111662046A (en) * | 2020-07-06 | 2020-09-15 | 济南大学 | Solid waste based inorganic artificial stone plate and preparation method thereof |
| CN112010578A (en) * | 2020-09-09 | 2020-12-01 | 武汉大学 | Baking-free red mud-based polymer and preparation method thereof |
| CN112870584A (en) * | 2021-01-28 | 2021-06-01 | 山西大学 | Method for extinguishing fire and preventing reburning of coal-based solid waste in coal gangue dump |
| CN114180930A (en) * | 2021-12-31 | 2022-03-15 | 中国海洋大学 | High-water-pressure ultra-large-diameter underwater shield tunnel double-liquid grouting slurry, process and application |
| CN115140972A (en) * | 2022-09-05 | 2022-10-04 | 山东黄河顺成水利水电工程有限公司 | Road paving material utilizing multi-source solid wastes and production process thereof |
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Application publication date: 20150325 |