CN108129103A - A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof - Google Patents
A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof Download PDFInfo
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- CN108129103A CN108129103A CN201810024599.0A CN201810024599A CN108129103A CN 108129103 A CN108129103 A CN 108129103A CN 201810024599 A CN201810024599 A CN 201810024599A CN 108129103 A CN108129103 A CN 108129103A
- Authority
- CN
- China
- Prior art keywords
- aggregate
- filling material
- paste filling
- agronomic crop
- crop fibre
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- 239000000835 fiber Substances 0.000 title claims abstract description 42
- 239000000463 material Substances 0.000 title claims abstract description 41
- 230000009418 agronomic effect Effects 0.000 title claims abstract description 35
- 238000005728 strengthening Methods 0.000 title claims abstract description 9
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 230000003750 conditioning effect Effects 0.000 claims abstract description 19
- 239000004568 cement Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000010881 fly ash Substances 0.000 claims abstract description 8
- 239000010902 straw Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- -1 fatty alcohol sulfonate class Chemical class 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical group NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000008030 superplasticizer Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M nitrite group Chemical group N(=O)[O-] IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000011056 performance test Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000012209 synthetic fiber Substances 0.000 description 3
- 229920002994 synthetic fiber Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 150000002826 nitrites Chemical class 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 229940125717 barbiturate Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 244000037666 field crops Species 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009275 open burning Methods 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof, belong to filler for mine field of material technology, it can solve the problem of existing fiber reinforcement paste filling material raw material sources narrow range of high cost, include the component of following mass fraction：50 60% aggregate, 8 10% cement, 15 25% flyash, 0.5 3% conditioning agent, 0.5 2% agronomic crop fibre and 10 20% water.The paste filling material stability of the present invention is good, and fiber source is wide, at low cost.
Description
Technical field
The invention belongs to filler for mine field of material technology, and in particular to a kind of to strengthen stability using agronomic crop fibre
Paste filling material and preparation method thereof.
Background technology
As coal in China exploits growing, such as goaf depression, rural area migration, discarded gangue and fine coal dust heap
A series of the problem of of being damaged to environment such as put.So far, to solve the above problems, China's coal-mine is mostly using green filling mining
Technology, and filler is the core of filling mining technology.The raw material of traditional paste filling material is mainly gangue, fine coal
Ash, mine tailings, cement and discarded concrete etc..Its paste filling material prepared meets general mine demand, if met
Poor to mining environment, in the case that surrouding rock stress is big, traditional paste filling material is easy to crack, and toughness is low, tension, compression strength
It is low.It studies through many experiments, if adding in fiber in paste filling material, such as steel fibre and synthetic fibers, can effectively change
The shortcoming of kind paste filling material.But since steel fibre and synthetic fibers manufacturing cost are high, raw material sources range is small, right
It is unreasonable in economic aspect in the great filler for mine material of demand.Since China is a large agricultural country, annual
Crop yield is a huge number, and being fabricated to fiber with it replaces steel fibre and synthetic fibers, equally with good
Performance.
According to ASSOCIATE STATISTICS, the main field crops stalk resource total amount in China is 8.97 hundred million tons, and consumption flow direction, which has, to be used as
Feed accounts for about 24%, and returning to the field and collection loss account for about 15%, and industry and other purposes account for about 2.3%, and 16% for generating electricity, 42.7%
By open incineration, environment is polluted.According to related data statistics, because of food crops Open Burning Crop Residue, percent of greenhouse gases, hydrogen-oxygen
Compound, particulate matter account for 0.01%, 0.05%, 1.24%, the 0.01% of national corresponding total emission volumn to SO2 emissions respectively.Number
It is higher that national proportion is accounted for according to the particulate matter crops burning shown as gray haze formation major reason.
In conclusion making fiber with agricultural crop straw, filler is prepared using it, can not only largely digest ground
Agricultural crop straw is accumulated, Economization on land effectively mitigates stratum variation and depression, reduces noxious gas emission, safeguard ecological environment,
Improve resource recovery, moreover it is possible to improve fill paste crack resistance, toughness, tension, compression strength, extend mine service-life.Cause
This, prepares filler using agricultural crop straw and promotes Safety of Coal Mine Production, realize that environmentally protective exploitation plays an important roll.
Invention content
The present invention is of high cost for the problem that existing fiber reinforcement paste filling material, and raw material sources narrow range provides one
Kind strengthens paste filling material of stability and preparation method thereof using agronomic crop fibre.
The present invention adopts the following technical scheme that：
A kind of paste filling material for strengthening stability using agronomic crop fibre includes the component of following mass fraction：50-60%
Aggregate, the cement of 8-10%, the flyash of 15-25%, the conditioning agent of 0.5-3%, 0.5-2% agronomic crop fibre and 10-20%
Water.
The aggregate derive from gangue, including grain size be 0-5mm fine aggregate, grain size be 5-10mm intermediate aggregate with
And the coarse aggregate that grain size is 10-15mm, wherein：The mass fraction that fine aggregate accounts for aggregate is 25-35%, and intermediate aggregate accounts for aggregate
Mass fraction is 25-35%, and the mass fraction that coarse aggregate accounts for aggregate is 35-45%.
The cement is normal silicate 42.5# cement.
The conditioning agent includes the water-reducing agent for accounting for the mass fraction 15.1-30% of conditioning agent, the mass fraction for accounting for conditioning agent
The air entraining agent of 14.7-25% and account for conditioning agent mass fraction 45-64.9% early strength agent.
The water-reducing agent is aminosulfonate-based superplasticizer, and air entraining agent is fatty alcohol sulfonate class air entraining agent, and early strength agent is nitrous
Hydrochlorate.
The length of the agronomic crop fibre is 10-20mm, width 0.1-3mm.
A kind of preparation method for the paste filling material for being strengthened stability using agronomic crop fibre, is included the following steps：
The first step collects waste crop straws, root is removed after classification；
The agricultural crop straw for removing root is placed in 8-12h in sodium hydroxide solution by second step, sodium hydroxide solution it is a concentration of
5-8%, temperature are 45 DEG C；
Third walks, and takes out the agricultural crop straw after impregnating, and clear water is rinsed to stalk and is in neutrality, uniformly spreads out, naturally dry；
Agricultural crop straw after drying is broken for length 10-20mm, the agronomic crop fibre of width 0.1-3mm by the 4th step；
Gangue is broken for fine aggregate, intermediate aggregate and coarse aggregate by the 5th step；
6th step, respectively by cement, flyash, agronomic crop fibre, aggregate mix, stirring 1.5-2min to be uniformly mixed, then add
Enter water and conditioning agent, stirring 1-3min is to uniformly mixed to get the paste filling material for strengthening stability to agronomic crop fibre.
Beneficial effects of the present invention are as follows：
1. agricultural crop straw is collected, expense is low, and source is wide, and achievees the effect that the saving duration in real work；
2. space moisture can voluntarily be adjusted by adding in the paste filling material of agronomic crop fibre, improve micro；
3. the present invention can reduce the burning of agricultural crop straw, secondary pollution, waste utilization, existing social benefit are avoided, and have
Economic benefit and environmental benefit；
4. agronomic crop fibre has the function of that enhancing, toughening, resistance are split, strengthen tension, compression strength, effective lotion of strengthening fills
The stability of filling chock material.
Specific embodiment
Embodiment 1
The first step collects waste crop straws, after classification, removes root；
Second step is 45 DEG C in temperature, impregnates 8-12h in the sodium hydroxide solution of a concentration of 5-8%；
Third walks, and takes out the agricultural crop straw after impregnating, and clear water is rinsed to stalk and is in neutrality, uniformly spreads out, naturally dry；
Agricultural crop straw after drying using impact crusher, is broken for length 10-20mm, width 0.1-3mm by the 4th step
Agronomic crop fibre；
Impact crusher, feeding granularity 400-1027mm, discharging-material size 10-20mm, production capacity 500-1500
（kg/h）, power consumption 15-75（kw）, weight 1000-3000Kg；
Gangue is broken for the fine aggregate of 0-5mm, intermediate aggregate, the 10-15mm of 5-10mm by the 5th step using jaw crusher
Coarse aggregate；
Jaw crusher, model PE 150*125, feed grain size degree≤100mm, discharging-material size 6-38mm, production capacity 500-
3000（m³/h）；
6th step takes 2.3kg normal silicate 42.5# cement, 7.19kg flyash, 0.144kg agronomic crop fibres, 3.595kg
Fine aggregate, the intermediate aggregate of 4.314kg and the coarse aggregate of 6.471kg, be stirring evenly and then adding into the water and 430g of 4.31kg
Conditioning agent, the wherein aminosulfonate-based superplasticizer of conditioning agent including 65g, 86g fatty alcohol sulfonate class air entraining agent and 279g
Nitrites early strength agent, be uniformly mixed to get to mass concentration be 85% paste filling material.
The performance test of the paste filling material is as follows：
Under identical proportioning, agronomic crop fibre is added without, carries out contrast test, performance test is as follows：
Embodiment 2
The first step collects waste crop straws, after classification, removes root；
Second step is 45 DEG C in temperature, impregnates 8-12h in the sodium hydroxide solution of a concentration of 5-8%；
Third walks, and takes out the agricultural crop straw after impregnating, and clear water is rinsed to stalk and is in neutrality, uniformly spreads out, naturally dry；
Agricultural crop straw after drying using impact crusher, is broken for length 10-20mm, width 0.1-3mm by the 4th step
Agronomic crop fibre；
Impact crusher, feeding granularity 400-1027mm, discharging-material size 10-20mm, production capacity 500-1500
（kg/h）, power consumption 15-75（kw）, weight 1000-3000Kg；
Gangue is broken for the fine aggregate of 0-5mm, intermediate aggregate, the 10-15mm of 5-10mm by the 5th step using jaw crusher
Coarse aggregate；
Jaw crusher, model PE 150*125, feed grain size degree≤100mm, discharging-material size 6-38mm, production capacity 500-
3000（m³/h）；
6th step takes 2.6kg normal silicate 42.5# cement, 4.3kg flyash, 0.57kg agronomic crop fibres, 5.366kg
Fine aggregate, the intermediate aggregate of 3.833kg and the coarse aggregate of 6.132kg are stirring evenly and then adding into the water and 143g of 5.73kg
Conditioning agent, wherein conditioning agent include aminosulfonate-based superplasticizer, the fatty alcohol sulfonate class air entraining agent of 21g and the 86g nitrous of 36g
Barbiturates early strength agent, be uniformly mixed to get to mass concentration be 80% paste filling material.
The performance test of the paste filling material is as follows：
Under identical proportioning, agronomic crop fibre is added without, carries out contrast test, performance test is as follows：
Embodiment 3
The first step collects waste crop straws, after classification, removes root；
Second step is 45 DEG C in temperature, impregnates 8-12h in the sodium hydroxide solution of a concentration of 5-8%；
Third walks, and takes out the agricultural crop straw after impregnating, and clear water is rinsed to stalk and is in neutrality, uniformly spreads out, naturally dry；
Agricultural crop straw after drying using impact crusher, is broken for length 10-20mm, width 0.1-3mm by the 4th step
Agronomic crop fibre；
Impact crusher, feeding granularity 400-1027mm, discharging-material size 10-20mm, production capacity 500-1500
（kg/h）, power consumption 15-75（kw）, weight 1000-3000Kg；
Gangue is broken for the fine aggregate of 0-5mm, intermediate aggregate, the 10-15mm of 5-10mm by the 5th step using jaw crusher
Coarse aggregate；
Jaw crusher, model PE 150*125, feed grain size degree≤100mm, discharging-material size 6-38mm, production capacity 500-
3000（m³/h）；
6th step, take 2.875kg normal silicate 42.5# cement, 4.456kg flyash, 0.431kg agronomic crop fibres,
Fine aggregate, the intermediate aggregate of 6.038kg and the coarse aggregate of 6.038kg of 5.175kg, is stirring evenly and then adding into 2.875kg's
The conditioning agent of water and 863g, wherein conditioning agent include the aminosulfonate-based superplasticizer of 259g, the fatty alcohol sulfonate class of 251.8g is drawn
Gas agent and 388.2g nitrites early strength agent, be uniformly mixed to get to mass concentration be 90% paste filling material.
The performance test of the paste filling material is as follows：
Under identical proportioning, agronomic crop fibre is added without, carries out contrast test, performance test is as follows：
Claims (7)
1. a kind of paste filling material for strengthening stability using agronomic crop fibre, it is characterised in that：Including following mass fraction
Component：The aggregate of 50-60%, the cement of 8-10%, the flyash of 15-25%, the conditioning agent of 0.5-3%, 0.5-2% crops
The water of fiber and 10-20%.
2. a kind of paste filling material for being strengthened stability using agronomic crop fibre according to claim 1, feature are existed
In：The aggregate derive from gangue, including grain size be 0-5mm fine aggregate, grain size be 5-10mm intermediate aggregate and grain
Diameter is the coarse aggregate of 10-15mm, wherein：The mass fraction that fine aggregate accounts for aggregate is 25-35%, and intermediate aggregate accounts for the quality of aggregate
Number is 25-35%, and the mass fraction that coarse aggregate accounts for aggregate is 35-45%.
3. a kind of paste filling material for being strengthened stability using agronomic crop fibre according to claim 1, feature are existed
In：The cement is normal silicate 42.5# cement.
4. a kind of paste filling material for being strengthened stability using agronomic crop fibre according to claim 1, feature are existed
In：The conditioning agent includes the water-reducing agent for accounting for the mass fraction 15.1-30% of conditioning agent, the mass fraction 14.7- for accounting for conditioning agent
25% air entraining agent and account for conditioning agent mass fraction 45-64.9% early strength agent.
5. a kind of paste filling material for being strengthened stability using agronomic crop fibre according to claim 4, feature are existed
In：The water-reducing agent is aminosulfonate-based superplasticizer, and air entraining agent is fatty alcohol sulfonate class air entraining agent, and early strength agent is nitrite.
6. a kind of paste filling material for being strengthened stability using agronomic crop fibre according to claim 1, feature are existed
In：The length of the agronomic crop fibre is 10-20mm, width 0.1-3mm.
7. a kind of preparation method of the paste filling material as described in claim 1 for strengthening stability using agronomic crop fibre,
It is characterized in that：Include the following steps：
The first step collects waste crop straws, root is removed after classification；
The agricultural crop straw for removing root is placed in 8-12h in sodium hydroxide solution by second step, sodium hydroxide solution it is a concentration of
5-8%, temperature are 45 DEG C；
Third walks, and takes out the agricultural crop straw after impregnating, and clear water is rinsed to stalk and is in neutrality, uniformly spreads out, naturally dry；
Agricultural crop straw after drying is broken for length 10-20mm, the agronomic crop fibre of width 0.1-3mm by the 4th step；
Gangue is broken for fine aggregate, intermediate aggregate and coarse aggregate by the 5th step；
6th step, respectively by cement, flyash, agronomic crop fibre, aggregate mix, stirring 1.5-2min to be uniformly mixed, then add
Enter water and conditioning agent, stirring 1-3min is to uniformly mixed to get the paste filling material for strengthening stability to agronomic crop fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024599.0A CN108129103A (en) | 2018-01-11 | 2018-01-11 | A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024599.0A CN108129103A (en) | 2018-01-11 | 2018-01-11 | A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108129103A true CN108129103A (en) | 2018-06-08 |
Family
ID=62400518
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810024599.0A Pending CN108129103A (en) | 2018-01-11 | 2018-01-11 | A kind of paste filling material for strengthening stability using agronomic crop fibre and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207970A (en) * | 2019-10-21 | 2020-05-29 | 江西理工大学 | Method for improving tensile strength of full-tailing cemented filling body by using rice straws |
| CN111454029A (en) * | 2020-04-11 | 2020-07-28 | 浙江奔腾市政园林建设工程有限公司 | Cement stabilizing material and preparation method thereof |
| CN113248216A (en) * | 2021-06-21 | 2021-08-13 | 北京科技大学 | Preparation and application method of rice hull ash-doped cemented filling material |
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|---|---|---|---|---|
| CN111207970A (en) * | 2019-10-21 | 2020-05-29 | 江西理工大学 | Method for improving tensile strength of full-tailing cemented filling body by using rice straws |
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| CN111454029A (en) * | 2020-04-11 | 2020-07-28 | 浙江奔腾市政园林建设工程有限公司 | Cement stabilizing material and preparation method thereof |
| CN113248216A (en) * | 2021-06-21 | 2021-08-13 | 北京科技大学 | Preparation and application method of rice hull ash-doped cemented filling material |
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Application publication date: 20180608 |