CN1211451C - Underwater epoxy resin grouting material - Google Patents
Underwater epoxy resin grouting material Download PDFInfo
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- CN1211451C CN1211451C CN 03118712 CN03118712A CN1211451C CN 1211451 C CN1211451 C CN 1211451C CN 03118712 CN03118712 CN 03118712 CN 03118712 A CN03118712 A CN 03118712A CN 1211451 C CN1211451 C CN 1211451C
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Abstract
The present invention relates to an underwater epoxy resin grouting material which is formed by using 100 portions of liquid epoxy resin with the epoxy value of 0.51 to 0.54 as a main agent and the present portions to 50 portions of propanone and 10 portions to 60 portions of furfural as a viscosity reductant in the process of grouting construction and a reactant in the process of solidification, and adding 10 portions to 60 portions of phenol formaldehyde hexanediamine condensation compound or phenol formaldehyde lentine condensation compound and 0.5 portions to 5 portions of surface moistening, penetration and sticking reinforcing agent of a silane class. The present invention is suitable for dry and moist environments, which is the same as the ordinary epoxy resin, and is also suitable for watered conditions; the slurry has the viscosity meeting grouting requirements, excellent moistening and infiltration performance, low solidification shrinkage rate, good mechanical performance meeting engineering requirements after solidification, good water and aging resistant performance, low toxicity in the slurry and simple preparation and construction technology. The present invention can be applied to places such as industrial and civil buildings, road bridges, ports, etc., and particularly has obvious treatment effects in seepage prevention and reinforcement of cracks in concrete huge buildings and rock foundations such as high buildings, large dams for hydroelectricity, etc.
Description
Technical field
The present invention relates to fixed, the anti-injection material that blends the distress in concrete reinforcement in civil construction project basis, refer to a kind ofly to be mainly used in that heavy construction rock foundation is fixed particularly, the underwater epoxy resin injection material of antiseepage, reinforcement cement grouting material deficiency and concrete structure crack treatment.
Background technology
Grouting is exactly the slurries that certain material is formulated, with force feed equipment it is poured in formation pore or the concrete structure member crevices, makes its diffusion, filling, gelling or curing, to reach the purpose of reinforcing or impervious leakage-stopping, guarantees engineering safety.Because advantages such as cementation process have that consolidating strength height, material source are wide, cheap, storing is convenient and grouting process is fairly simple, up to now, cement is still most widely used basic injection material in the grouting works.But, can't pour into less than the process object of its grain diameter below 3～5 times fracture aperture because of cement metal particles material.Simultaneously, mass concrete structure member crevices for important building, not only its aperture is tiny, area is big, but also require to have very high mechanical strength and good adhesiveproperties, cement grouting material is owing to separate out as the water section of its carrier, can not reach bonding closely knit, intensity is high, recover the purpose of whole building.The use of the Resins, epoxy true solution chemical grouting material that therefore, non-particulate and bonding strength is high just becomes inevitable.
Resins, epoxy has firm bonding force, can solidify at normal temperatures, and the reaction shrinking percentage is little, and higher mechanical strength and good ageing-resistant performance are arranged.Thereby it has obtained widespread use in civil construction project, particularly all it is applied in the distress in concrete strengthening grouting in each developed country, but is applied in the based process then relatively more rare.At present, the Resins, epoxy trade mark of producing is a lot of both at home and abroad, and also be not quite similar as its trade mark of Resins, epoxy of chemical grouting material, but generally all be to adopt more common bisphenol A type epoxy resin and amine curing agent such as quadrol, the diethylenetriamine etc. that can carry out self-vulcanizing to carry out assembly, in above two components, suitably add promotor, properties-correcting agent, toughner, thinner etc. again, to adapt to the requirement of different perfusion objects.
But existing external epoxy resin grout material only is applicable to the process object of drying or dampness, and not being suitable for has water state, indicates all especially and only is applicable to drying, dampness as the LPL of the U.S., German products such as sika.The initial viscosity of U.S. LPL product is 350mPas, the initial viscosity of Germany sika product is 150～180mPas, because its viscosity is bigger, reaction times is shorter, so can only pour into 〉=the above shallow-layer crack of 0.5mm, is used for handling plate, beam, the rod structure of buildings in general more, treatment effect to the heavy construction structure is unsatisfactory, and its material unit price is higher, reaches about 130 yuan/kilogram in China's price, and cost performance is not high.
And there are the problems referred to above equally in existing domestic epoxy resin grout material.According to the pertinent data introduction, domestic this type of epoxy resin grout material is in that dabbling bonding strength is arranged under the regimen condition is low by about 50% when using under dry environment, and in some cases in addition yellowing, peeling, slurry material do not solidify.
Conclusion is got up, and also there is following problems in present existing epoxide resin grouting material: (1) slurry material can not be applied to water condition.Some slurry material uses in order to adapt to have under the water condition, the hydrophilic improvement of slurry material that only covets, and because of general bisphenol A type epoxy resin is water-fast, but amine curing agent is water-soluble and diluted, then will influence normally carrying out of curing reaction; (2) slurry surface tension force and contact angle are higher, and it is moistening and wetting capacity is lower, the processing of the rock foundation fault belt that the incompatibility perviousness is low, argillization interlayer and concrete micro-cracks, the reinforcement of dam foundation seepage proof curtain; (3) slurry viscosity is higher, and viscosity increases too fast, and the presetting period is long, and early stage thermal value is excessive, and gain in strength is slow excessively, and operation is comparatively complicated; (4) slurry contains raw materials such as toxic, pungency, corrosive quadrol, diethylenetriamine in the material; (5) cost performance is lower.
Summary of the invention
Purpose of the present invention will provide a kind of underwater epoxy resin injection material exactly, this slurry material good penetrability, cured article intensity height, to rock and concrete bonding firmly, to solidify the back anti-permeability performance good and construction technology is simple, and can dry, moist, water arranged, particularly ambient cure under the condition of the moving water of pressure flow can be widely used in buildings basement rock fault belt, argillization interlayer, distress in concrete particularly microscopic checks processing and the reinforcement of dam foundation seepage proof curtain.
For realizing this purpose, the underwater epoxy resin injection material that the present invention developed is that 0.51～0.54 liquid-state epoxy resin, 5～50 parts of acetone, 10～60 parts of furfurals, 10～60 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 0.5～5 part of silane coupling agent are formed by 100 parts of oxirane values by weight.Wherein liquid-state epoxy resin is a host; Acetone, furfural are reactive diluent; Phenol formaldehyde (PF) hexanediamine condenses or phenol formaldehyde (PF) mphenylenediamine condenses are that hydrophobic nature is solidified toughner; Silane coupling agent is surface wettability, infiltration, bonding reinforcing agent.
The optimal components ratio of above-mentioned underwater epoxy resin injection material, can be by weight be that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40～50 parts of acetone, 40～60 parts of furfurals, 10～60 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 2～3 parts of silane coupling agents are formed by 100 parts of oxirane values.
The better proportioning of above-mentioned underwater epoxy resin injection material, can be by weight be that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40～50 parts of acetone, 40～60 parts of furfurals, 20～40 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 2～3 parts of silane coupling agents are formed by 100 parts of oxirane values.
The invention has the advantages that: abandon aliphatic amide commonly used such as quadrol, the diethylenetriamine etc. that are dissolved in water in the slurry material of being developed, the phenol formaldehyde (PF) hexanediamine condenses of selection hydrophobic nature or phenol formaldehyde (PF) mphenylenediamine condenses are as solidifying agent, after the liquid-state epoxy resin of itself and hydrophobic nature mixes, the stable interface of formation and water, the curing reaction of then starching material inside is not subjected to the influence of outside water.The slurries that this hydrophobic nature is strong, under the promotion of grouting pressure, with the slurry expelling water, the free water and the capillary water that replace process range with slurries, there are furfural, the acetone composition that can dissolve each other well with water electrode in the slurries again, destroy both sides, crack and microparticle surfaces attached water and the formed thin water film of combination water by molecular diffusion, and this part hydrophilic monomer can autohemagglutination, partial cross-linked or form the interpenetrating(polymer)networks cured article with hydrophobic, after required process range is solidified, have the ideal mechanical property, and can and be irritated the body mortise.And, the long-chain of phenol formaldehyde (PF) hexanediamine condenses or phenol formaldehyde (PF) mphenylenediamine condenses had both had toughening effect, the promotion group that has abundant reinforced epoxy solidification again also has characteristics such as the volatility hypotoxicity is little, cure shrinkage is low, cementability is good, solidification intensity height.
Simultaneously, except that dissolving each other by furfural, acetone and water with the pellicular water film destroy, also select silane coupling agent as surface treatment agent, the effect that it will rely on molecular diffusion migrates at the interface, make the surface tension step-down of slurry material, contact angle diminishes, except that slurries are had the special excellent moistening and wetting property, also form chemical bond respectively, improve the Joint strength at interface effectively and the stability of hydrolysis through hydrolysis and inorganics surface and Resins, epoxy.
Thereby, slurry material viscosity appropriateness of the present invention, adjustable, surface tension, contact angle is low, moistening, wetting property is excellent, good penetrability, operable time is long, wide adaptability all can use at dry, moist, underwater environment, and slurry material cured article density in process object is good, the mechanical strength height is with bonding firmly by the filling body.
Embodiment
Below in conjunction with specific embodiment and experimental data underwater epoxy resin injection material of the present invention is described in further detail:
Embodiment 1 (formula number CW1):
Oxirane value is 0.52 bisphenol A-type liquid-state epoxy resin 100 weight parts
Acetone 40 weight parts
Furfural 40 weight parts
Phenol formaldehyde (PF) hexanediamine condenses 20 weight parts
Silane coupling agent 2 weight parts
Embodiment 2 (formula number CW2):
Oxirane value is 0.53 bisphenol A-type liquid-state epoxy resin 100 weight parts
Acetone 40 weight parts
Furfural 40 weight parts
Phenol formaldehyde (PF) mphenylenediamine condenses 40 weight parts
Silane coupling agent 3 weight parts
Above-mentioned prescription mixed promptly get underwater epoxy resin injection material of the present invention.
Table 1～4 show the experimental result of underwater epoxy resin injection material of the present invention, the analysis by these experimental results as can be known:
This slurry material is compared with the plasmoid material with domestic, based on hydrophobic nature, has wetting ability concurrently, with the slurry draining, has abandoned acetone guide grouting, and saving of labor, material-saving are environmental, guarantee construction quality.Three Gorges Projects F
215The domestic like product of testing down with this slurry material the same terms in the test of fault belt chemistry of cement compound grouting is not obtained core at the tomography position, its simulation test intensity is also low than this slurry material simultaneously, and the presetting period is oversize.It is introduced that it is used at Li Jiaxia, fracture filling rate 74.6%, foreign data think that also the packing fraction of grouting reaches 70～80% and belongs to ideal.And it is complete to get core filling ratio convergence after the grouting of this slurry material, the closely knit important guaranteed conditions of being irritated the body life-time service of slurries cured article filling.
This slurry material with abroad compare with the plasmoid material: 1) applied widely, do, all be suitable under moist, the state that is full of flowing water, and all can not be used to have water condition with plasmoid material such as LPL, sika product abroad; 2) initial viscosity is low, and under 20 ℃ of conditions about 14mPas, and sika product viscosity 150～180mPas can only pour into 〉=the above crack of 0.5mm, LPL product viscosity 350mPas; 3) perfusion mechanical property dry and moist object also doubles above than external corresponding product; 4) price is lower, and external like product price exceeds this slurry material more than one times.
This slurry material starting material are all homemade, and the source of goods is wide, and blending process is simple, and single perfusion is easy to promote.
Table 1 underwater epoxy resin injection material salient features
| Formula number | CW1 | CW2 | |
| Slurry viscosity (20 ℃, mPas) | 14 | 14 | |
| Slurry specific gravity | 1.06 | 1.06 | |
| The pH value of slurries | Before adding solidifying agent | 6 | 6 |
| After adding solidifying agent | 9 | 9 | |
| Density polymer | 1.12 | 1.10 | |
| Gelation time (h) | 26 | 65 | |
| Slurry interface tension force (around-France) (20 ℃, mN/m) ** | Joining slurry finishes | 34.38 | |
| 1h | 36.11 | ||
| The slurries contact angle (20 ℃, °) (contactant is grouan) ** | Joining slurry finishes | 7.1 | |
| Joining slurry finishes | (0.0 contact surface is wet) | ||
| 1h | 10.6 | ||
| The bonding tensile strength of mortar " 8 " type matrix (MPa) (two months length of time) | Dry curing | ＞3.5 | ＞3.5 |
| Wet curing | ＞3.5 | ＞3.5 | |
| GORGES GRANITE test block split tensile strength (MPa) (one month length of time) | Dry curing | 3.5 | 4.7 |
| The ultimate compression strength of simple polymerisation body (MPa) | The length of time: one month | 47.8 | 33.0 |
| The length of time: three months | 70.0 | 49.0 | |
| The length of time: six months | 72 2 | 60.5 | |
| Standard sand induration ultimate compression strength (MPa) (one month length of time) | Dry curing | 59.2 | 36.2 |
| Wet curing | 44.0 | 32.2 | |
| The modulus of deformation of simple polymerisation body (GPa) (three months length of time) | Dry curing | 0.93；0.83；0.67 | |
| Maintenance under water | 0.81；0.87；0.88 | ||
| Silica powder induration ultimate compression strength (MPa) (one month length of time) | Dry curing | 124 | |
| Maintenance under water | 116 | ||
| Silica powder induration modulus of deformation (GPa) (one month length of time) | Dry curing | 10.64；9.47；9.07 | |
| Maintenance under water | 8.79；8.24；8.07 | ||
| F 215The pure slurry simulation of fault belt grouting | Become mould Ed (GPa) | 2.63 | |
| Play mould Ee (GPa) | 4.23 | ||
| *The simulation perfusion fissured split tensile strength of 0.3mm (MPa) (three months length of time) | Dry | 2.6 | 2.7 |
| Water is arranged | 2.5 | 2.6 | |
| *The simulation perfusion fissured split tensile strength of 0.15mm (MPa) (three of length of times | Dry | 2.8 | 3.0 |
| Water is arranged | 2.5 | 2.6 | |
*: expression perfusion 15 * 15 * 15m
3Split tensile strength behind the cube concrete test specimen;
*: the surface tension 72.53mN/m of water under the same terms, 39.4 ° of contact angles.
Table 2 LPL product and underwater epoxy resin injection material achievement synopsis
Germany sika concrete castability is poor, does not give employing.
Table 3 Three Gorges Projects F
215Fault belt underwater epoxy resin injection material lab simulation grouting outcome table
| Slurry material title | The test specimen numbering | Ultimate compression strength (MPa) | Tensile strength (MPa) | Modulus | Poisson's ratio μ | Slip resistance | Density (g/cm before block is irritated 3) | Block is irritated back density (g/cm 3) | ||
| Become mould E d | Play mould E e | c(MPa) | f | |||||||
| CW1 | 3-1 | 6.18 | 0.66 | 1.52 | 2.09 | |||||
| 3-2 | 2.24 | |||||||||
| 3-3 | 22.2 | 2.00 | ||||||||
| 4-1 | 1.61 | 1.9 | ||||||||
| 4-2 | 24.8 | 2.63 | 4.23 | 0.39 | 2.23 | |||||
| 4-3 | 2.12 | |||||||||
| Middleization-798 | 1-1 | 4.94 | 1.22 | 1.55 | 1.86 | |||||
| 1-2 | 13.2 | 1.66 | 1.82 | 4.03 | 0.4 | 1.68 | ||||
| 1-3 | 1.47 | 2.15 | ||||||||
| 2-1 | 13.1 | 1.04 | 2.75 | 0.43 | 1.62 | 2.15 | ||||
| 2-2 | 9.93 | 1.91 | ||||||||
| 2-3 | 16.1 | 1.82 | 4.03 | 0.43 | 2.16 | |||||
Annotate: with F
215The tomography exposure former state of partly taking out is filled in the simulation grouting steel cylinder of long 50cm, diameter 5cm the sample saturation water.The CW slurries pour into from the bottom, the top draining.Equipment is HGB-2 type high-pressure pump, and grouting pressure is 0～8.0MPa, and the beginning drains out pure slurry with water after the 8h perfusion, and grouting and screen slurry be 12h altogether.The CW group is directly with the draining of slurry material; Middleization-798 group done guide's grouting, draining with acetone.Above-mentioned achievement half a year in the length of time.
The performance index that table 4 underwater epoxy resin injection material is reached when using at the scene
| The place | The grouting purpose | Ultimate compression strength (MPa) | Slip resistance (MPa) | Split tensile strength (MPa) | Modulus of deformation (GPa) | Permeability rate (Lu) | Remarks | |||||
| Before the filling | After the filling | Before the filling | After the filling | Before the filling | After the filling | Before the filling | After the filling | Before the filling | After the filling | |||
| Three Gorges F 215Tomography | Strengthening of foundation | Be loose-half loose shape | 25.9 | - | C＝0.6 f＝1.2 | - | 1.39 | - | 12.5 | ＞5 account for 35% | ＜0.18 | The chemistry of cement compound grouting, the J5 inspection window |
| Three Gorges f 1096Tomography | Be loose-half loose shape | - | - | C＝1.49 f＝1.91 | - | 2.11 | - | Greater than 8.91 | The chemistry of cement compound grouting, the J2 inspection window | |||
| River a strip of land between hills 7,8 monolith dam foundation corrosion bands | The basis antiseepage | 1.7～5.1 | ＜0.616 | |||||||||
| Three Gorges water ship lock layer of a specified duration and stitching | Concrete construction antiseepage reinforcement | - | - | - | - | Greater than 1.07 | - | - | ＜0.1 | |||
| Tail-bay crack treatment on the new city ship lock of course line, Jiang-Han Area | - | - | - | - | 1.7～3.1 | - | - | 0 | ||||
Claims (4)
1. underwater epoxy resin injection material is that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40～50 parts of acetone, 40～60 parts of furfurals, 10～60 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 2～3 parts of silane coupling agents are formed by 100 parts of oxirane values by weight.
2. underwater epoxy resin injection material according to claim 1 is characterized in that: this material is that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40～50 parts of acetone, 40～60 parts of furfurals, 20～40 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 2～3 parts of silane coupling agents are formed by 100 parts of oxirane values by weight.
3. underwater epoxy resin injection material according to claim 1 is characterized in that: this material is that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40 parts of acetone, 40 parts of furfurals, 20 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 2 parts of silane coupling agents are formed by 100 parts of oxirane values by weight.
4. underwater epoxy resin injection material according to claim 1 is characterized in that: this material is that 0.51～0.54 bisphenol A-type liquid-state epoxy resin, 40 parts of acetone, 40 parts of furfurals, 40 parts of phenol formaldehyde (PF) hexanediamine condensess or phenol formaldehyde (PF) mphenylenediamine condenses, 3 parts of silane coupling agents are formed by 100 parts of oxirane values by weight.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 03118712 CN1211451C (en) | 2003-02-28 | 2003-02-28 | Underwater epoxy resin grouting material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03118712 CN1211451C (en) | 2003-02-28 | 2003-02-28 | Underwater epoxy resin grouting material |
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| CN1211451C true CN1211451C (en) | 2005-07-20 |
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| CN 03118712 Expired - Fee Related CN1211451C (en) | 2003-02-28 | 2003-02-28 | Underwater epoxy resin grouting material |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100457824C (en) * | 2006-07-25 | 2009-02-04 | 长江水利委员会长江勘测规划设计研究院 | Green high-strength epoxy grouting material and its prepn |
| CN1935895B (en) * | 2006-09-06 | 2010-05-12 | 中国科学院广州化学研究所 | Modified furfurylidene acetone system epoxy resin grouting material and its preparing method |
| CN101880134B (en) * | 2010-06-13 | 2012-11-21 | 成都威邦科技有限公司 | Grouting material for water conservancy and hydropower project and grouting method thereof |
| CN102432788B (en) * | 2011-08-18 | 2013-08-07 | 中科院广州化学有限公司 | High-efficiency furfural-acetone activator for grouting material, preparation method and application thereof |
| CN102585441B (en) * | 2012-02-28 | 2014-06-11 | 华南理工大学 | Performance-controllable epoxy-polyketone grouting material as well as preparation method and application thereof |
| CN103452330B (en) * | 2013-08-20 | 2015-07-22 | 中国建筑第六工程局有限公司 | Method for strengthening circular structure bottom |
| CN112811845B (en) * | 2020-12-31 | 2022-07-05 | 北京工业大学 | Preparation method of cement-based self-repairing material based on oil-soluble amine microcapsules |
| CN116161898A (en) * | 2023-02-20 | 2023-05-26 | 贵州雷氏兄弟建材有限公司 | Grouting material for hydraulic and hydroelectric engineering and grouting method thereof |
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