CN101717221B - Foaming agent for soil engineering - Google Patents
Foaming agent for soil engineering Download PDFInfo
- Publication number
- CN101717221B CN101717221B CN 200910223854 CN200910223854A CN101717221B CN 101717221 B CN101717221 B CN 101717221B CN 200910223854 CN200910223854 CN 200910223854 CN 200910223854 A CN200910223854 A CN 200910223854A CN 101717221 B CN101717221 B CN 101717221B
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- Prior art keywords
- foaming agent
- foam
- soil
- foaming
- soil engineering
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- 239000002689 soil Substances 0.000 title claims abstract description 27
- 239000004088 foaming agent Substances 0.000 title claims abstract description 24
- 239000000203 mixture Substances 0.000 claims description 25
- -1 fatty acid monoethanolamine disodium sulfosuccinate Chemical class 0.000 abstract description 11
- 239000006260 foam Substances 0.000 abstract description 10
- 229940051841 polyoxyethylene ether Drugs 0.000 abstract description 10
- 229920000056 polyoxyethylene ether Polymers 0.000 abstract description 10
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011381 foam concrete Substances 0.000 abstract description 6
- 238000005187 foaming Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003381 stabilizer Substances 0.000 abstract description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 4
- 239000011449 brick Substances 0.000 abstract description 4
- 150000002191 fatty alcohols Chemical class 0.000 abstract description 4
- 235000014113 dietary fatty acids Nutrition 0.000 abstract 1
- 239000000194 fatty acid Substances 0.000 abstract 1
- 229930195729 fatty acid Natural products 0.000 abstract 1
- 229950005875 laurilsulfate Drugs 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 8
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 8
- 159000000000 sodium salts Chemical class 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 description 7
- 235000011152 sodium sulphate Nutrition 0.000 description 7
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 6
- 150000001408 amides Chemical class 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 150000004996 alkyl benzenes Chemical class 0.000 description 3
- BTBJBAZGXNKLQC-UHFFFAOYSA-N ammonium lauryl sulfate Chemical compound [NH4+].CCCCCCCCCCCCOS([O-])(=O)=O BTBJBAZGXNKLQC-UHFFFAOYSA-N 0.000 description 3
- 229940063953 ammonium lauryl sulfate Drugs 0.000 description 3
- 235000019864 coconut oil Nutrition 0.000 description 3
- 239000003240 coconut oil Substances 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 3
- 229940043264 dodecyl sulfate Drugs 0.000 description 3
- SYELZBGXAIXKHU-UHFFFAOYSA-N dodecyldimethylamine N-oxide Chemical compound CCCCCCCCCCCC[N+](C)(C)[O-] SYELZBGXAIXKHU-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002453 shampoo Substances 0.000 description 2
- ASFAFOSQXBRFMV-LJQANCHMSA-N 3-n-(2-benzyl-1,3-dihydroxypropan-2-yl)-1-n-[(1r)-1-(4-fluorophenyl)ethyl]-5-[methyl(methylsulfonyl)amino]benzene-1,3-dicarboxamide Chemical compound N([C@H](C)C=1C=CC(F)=CC=1)C(=O)C(C=1)=CC(N(C)S(C)(=O)=O)=CC=1C(=O)NC(CO)(CO)CC1=CC=CC=C1 ASFAFOSQXBRFMV-LJQANCHMSA-N 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- ITCAUAYQCALGGV-XTICBAGASA-M sodium;(1r,4ar,4br,10ar)-1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylate Chemical compound [Na+].C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C([O-])=O ITCAUAYQCALGGV-XTICBAGASA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000001302 tertiary amino group Chemical group 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The invention discloses a foaming agent for soil engineering, which mainly serves as a soil body modifier used in the earth pressure balance shield construction and can be applied to foam concrete, foam light brick and air bubble mixed light soil. The foaming agent is compounded by the following components according to the following ratio: 1-12% of linear-chain laurilsulfate, 0-7% of alkylbenzenesulfonate, 0-7% of fatty acid monoethanolamine disodium sulfosuccinate monoester, 0-8% of fatty alcohol polyoxyethylene ether sulphate, 0.2-8% of foam stabilizer, 0.1-3% of foaming aid and the balance of water. The foaming agent of the invention is mixed with air after being diluted to froth with a foam generator, so that small air bubbles with high expansion ratio, high stability and even distribution can be generated. At normal temperature and normal pressure, foam expansion ratio can reach 15-35 times, and the time for half of air bubble to crash is 16-30 minutes.
Description
Technical field
The present invention relates to a kind of foaming agent for soil engineering.This foaming agent for soil engineering can also be applied as the efficient aerating powder of foamed concrete, light-weight foamed brick and air bubble mix light-textured soil mainly as the soil body modifying agent in the earth pressure balanced shield, EPBS construction.Belong to civil engineering work material technology field.
Background technology
In recent years, along with the develop rapidly of underground engineering constructions such as subway, earth pressure balanced shield, EPBS worker method driving tunnel has the favor that advantages such as safety, efficient, environmental protection more and more are subjected to people because of it.But, because earth pressure balanced shield, EPBS is suitable for the restriction of formation condition, when shield engine stops up, ties cake during by bad ground easily, phenomenon such as gush, very easily cause engineering accidents such as the tunnel collapses, surface subsidence.Generally, can use the engineering characteristic of soil body modifying agent improvement stratum soil, in order to shield engine is waltzed through safely.Soil body modifying agent commonly used has wilkinite and special-purpose foam, and foam is the most advanced and the most effective soil body modifying agent up to now.Yet the applied research of foaming agent is more advanced abroad, and China is just at the early-stage in recent years to application and the research of foaming agent, and the performance of its foaming agent is generally all unstable.
Foamed concrete has become a kind of building material with its lightweight, characteristic such as heat insulation property is good, the sound-proof refractory performance is good, has obtained using widely in civil engineering work.Require to use the bubble of high stability in the foamed concrete production technique, have only the foam of good stability just can be used for producing foamed concrete.At present, the concrete foaming agent function of China is few, yield poorly, and the stability, uniformity of the foam that generates, dispersiveness are all undesirable, and is also bad with the associativity of cement.
The key issue of producing light-weight foamed brick is to make good quality froth.Traditional foaming agent all is to adopt sodium abietate, and, complicated process of preparation limited because of its raw material resources, perishable, unstable properties are restricted.
In high-grade highway, municipal administration and civilian and Industrial buildings engineering, all need a large amount of material of construction such as air bubble mix light-textured soil, its stability to bubble is had higher requirement.
Summary of the invention
The objective of the invention is to overcome existing foaming agent for soil engineering poor stability, technical problem that rate of expansion is low, a kind of new and effective water-soluble foaming agent for soil engineering is provided, it mainly as the soil body modifying agent in the earth pressure balanced shield, EPBS construction, also can be applicable to foamed concrete, light-weight foamed brick and air bubble mix light-textured soil.
The main raw material component of foaming agent for soil engineering of the present invention comprises one or more in straight chain dodecyl sulfate, linear alkylbenzene sulfonate, fatty monoethanol amide sulfosuccinate monoester disodium salt, the fatty alcohol polyoxyethylene ether sulfate, and suds-stabilizing agent, foaming aids and water.
Specifically be that foaming agent for soil engineering of the present invention is made up of following feed composition by weight percentage:
Straight chain dodecyl sulfate 1～12%,
Alkylbenzene sulfonate 0～7%,
Fatty monoethanol amide sulfosuccinate monoester disodium salt 0～7%,
Fatty alcohol polyoxyethylene ether sulfate 0～8%,
Suds-stabilizing agent 0.2～8%,
Foaming aids 0.1～3%,
Water surplus.
Described straight chain dodecyl sulfate refers to this type of sodium salt or the mixture of sodium salt and ammonium salt, that is: the mixture of straight chain sodium lauryl sulphate or straight chain sodium lauryl sulphate and straight chain ammonium lauryl sulfate.Wherein, the straight chain sodium lauryl sulphate is a kind of white powder, and special odor is arranged, and can prepare the good shampoo of bubble; The straight chain ammonium lauryl sulfate is weak yellow liquid, has performances such as decontamination, wetting, foaming, emulsification, readily biodegradable.
Described alkylbenzene sulfonate refers to this type of sodium salt or the mixture of sodium salt and ammonium salt, that is: the mixture of linear alkyl benzene sulphonate or linear alkyl benzene sulphonate and straight chain Witco 1298 Soft Acid ammonium.Wherein, linear alkyl benzene sulphonate, white powder, acid and alkali-resistance, resistance to oxidation has good emulsifying, whipability.
Described fatty monoethanol amide sulfosuccinate monoester disodium salt refers to this type of sodium salt or the mixture of sodium salt and ammonium salt, that is: the mixture of fatty monoethanol amide sulfosuccinate monoesters disodium or fatty monoethanol amide sulfosuccinate monoesters disodium and fatty monoethanol amide sulfosuccinate monoesters two ammoniums, it has very strong whipability.
Described fatty alcohol polyoxyethylene ether sulfate refers to this type of sodium salt or the mixture of sodium salt and ammonium salt, that is: the mixture of polyoxyethylenated alcohol sodium sulfate or polyoxyethylenated alcohol sodium sulfate and AESA.Wherein, polyoxyethylenated alcohol sodium sulfate is paste under its normal temperature, and whipability is good, can prepare the good shampoo of whipability and Cleaning preparations.
Described suds-stabilizing agent refers to amphoterics tertiary amino oxides dimethyl dodecyl amine oxide, nonionogenic tenside coconut oil diethanol amide or alkylol amide one of them or two kinds mixture wherein.Suds-stabilizing agent can improve the stability that forms foam.
Described foaming aids refers to nonionic surfactant water-soluble fatty alcohol-polyoxyethylene ether, lauryl alcohol or polyacrylamide one of them or two kinds mixture wherein.
At normal temperatures, above-mentioned each component is mixed in proportion dissolving, stirring compositely to form foaming agent for soil engineering of the present invention.
The foaming agent solution that the present invention prepares by the foaming of special-purpose frothing machine, can generate countless homogeneous, the pure white micro-bubble with high rate of expansion, high stability after dilution and air mixed.Not only expansion ratio height, and the bubble hole that produces is little, be evenly distributed.After measured, the rate of expansion of foam reaches 15-35 doubly under the normal temperature and pressure, and bubble-break half institute's time spent reaches 16-30 minute.
Embodiment
Below the present invention is carried out further detailed description, provide several specific embodiments that each feed composition of foaming agent for soil engineering of the present invention is formed.
Embodiment 1
The weight percent of each feed composition is:
Sodium lauryl sulphate 5%
Polyoxyethylenated alcohol sodium sulfate 3%
Fatty alcohol-polyoxyethylene ether 1%
Dimethyl dodecyl amine oxide 1%
Lauryl alcohol 0.9%
Water 89.1%
Each component is mixed in proportion dissolving under the normal temperature, stir.
Embodiment 2
The weight percent of each feed composition is:
Sodium lauryl sulphate 5%
Sodium dodecylbenzene sulfonate 4%
Polyoxyethylenated alcohol sodium sulfate 3%
Fatty monoethanol amide sulfosuccinate monoesters disodium 4%
Ammonium lauryl sulfate 2%
Fatty alcohol-polyoxyethylene ether 1%
Coconut oil diethanol amide 0.5%
Water 80.5%
Each component is mixed in proportion dissolving under the normal temperature, stir.
Embodiment 3
The weight percent of each feed composition is:
Sodium lauryl sulphate 6%
Polyoxyethylenated alcohol sodium sulfate 6%
Dimethyl dodecyl amine oxide 1%
Fatty alcohol-polyoxyethylene ether 2%
Alkylol amide 3%
Water 82%
Each component is mixed in proportion dissolving under the normal temperature, stir.
Embodiment 4
The weight percent of each feed composition is:
Sodium lauryl sulphate 10%
Alkylol amide 1%
Lauryl alcohol 0.8%
Fatty alcohol-polyoxyethylene ether 1%
Polyacrylamide 0.2%
Water 87%
Each component is mixed in proportion dissolving under the normal temperature, stir.
Embodiment 5
The weight percent of each feed composition is:
Sodium lauryl sulphate 2%
Polyoxyethylenated alcohol sodium sulfate 6.5%
Fatty alcohol-polyoxyethylene ether 1%
Alkylol amide 4%
Coconut oil diethanol amide 0.5%
Water 86%
Each component is mixed in proportion dissolving under the normal temperature, stir.
Claims (5)
1. foaming agent for soil engineering, it is made up of according to weight percent following feed composition:
2. foaming agent for soil engineering, it is made up of according to weight percent following feed composition:
3. foaming agent for soil engineering, it is made up of according to weight percent following feed composition:
4. foaming agent for soil engineering, it is made up of according to weight percent following feed composition:
5. foaming agent for soil engineering, it is made up of according to weight percent following feed composition:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910223854 CN101717221B (en) | 2009-11-24 | 2009-11-24 | Foaming agent for soil engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910223854 CN101717221B (en) | 2009-11-24 | 2009-11-24 | Foaming agent for soil engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101717221A CN101717221A (en) | 2010-06-02 |
| CN101717221B true CN101717221B (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910223854 Active CN101717221B (en) | 2009-11-24 | 2009-11-24 | Foaming agent for soil engineering |
Country Status (1)
| Country | Link |
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| CN (1) | CN101717221B (en) |
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|---|---|---|---|---|
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
-
2009
- 2009-11-24 CN CN 200910223854 patent/CN101717221B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103605A (en) * | 1993-12-07 | 1995-06-14 | 煤炭科学研究总院抚顺分院 | Foaming agent with high stability |
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| CN101717221A (en) | 2010-06-02 |
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