CN101349045B - Application of coal ash synthetic channel jointing material on damping interface or in water construction - Google Patents
Application of coal ash synthetic channel jointing material on damping interface or in water construction Download PDFInfo
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- CN101349045B CN101349045B CN2008101508190A CN200810150819A CN101349045B CN 101349045 B CN101349045 B CN 101349045B CN 2008101508190 A CN2008101508190 A CN 2008101508190A CN 200810150819 A CN200810150819 A CN 200810150819A CN 101349045 B CN101349045 B CN 101349045B
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Abstract
The invention discloses an application of a known impervious canal joint material synthesized by fly ash in the construction at a moist interface or in water. The proposer carries out an experiment to the material at the moisture interface or in the water; experiments show that the bonding strength of the construction of the canal joint material synthesized by the fly ash at the moisture interface or in the water achieves more than 80 percent of that at a dry interface, so the impervious canal joint material synthesized by the fly ash can fully solve problems of moist and water-contained bonding which are encountered during the actual engineering, and satisfy the operating requirement of the engineering.
Description
Technical field
The present invention relates to a kind of fly ash synthesized channel joint material at damping interface or in the application of subaqueous work, for flyash channel joint material provides new purposes.
Background technology
In hydraulic engineering, a large amount of canal engineerings or aqueduct project all exist owing to joint filler and the insecure engineering leakage problem that takes place of concrete edge wall bonding, have seriously reduced water application efficiency and engineering life-span.The applicant has obtained national inventing patent " fly ash synthesized channel joint impervious material and preparation method thereof the " (patent No.: ZL 200310118992.X), fly ash synthesized channel joint impervious material wherein is that raw materials such as flyash and Polyether-Polyol Polyurethane Prepolymer, curing compound, catalyzer, antioxidant, ultra-violet absorber is synthetic, its performance is in particular in than the joint filler superior performance of using in the present canal engineering:
1. have very strong adhesion strength with concrete interface, barrier performance is splendid;
2. stable performance between-40 ℃～100 ℃ has elasticity, adapts to canal body frost-heaving deformation;
3. anti-erosion, ageing-resistant, anti-uv-ray is strong, good weatherability, and the antiseepage frost heaving resistant can reach 30 years;
4. not sagging, need not heat under the atmospheric temperature, easily construction;
5. its price is 25% of an external like product;
6. this channel joint impervious material is owing to adopt pulverized fuel ash as raw materials, twice laid is turned waste into wealth, and has both solved flyash and has taken the environment pollution that soil, a large amount of farmland causes, meet country again and advocate the policy of using flyash energetically, saved a large amount of mineral resources.This fly ash synthesized channel joint material is than original channel joint impervious material, improved the adhesive strength with adherend greatly, durability and elasticity, thus in hydraulic engineering, applied.
Similar polyurethanes encapsulant all can not be at damping interface and subaqueous work, if run into water, this class material can not solidify or can't be bonded to an integral body with adhesive surface.Searching can will bring great convenience to the construction of canal engineering or aqueduct project at the material of damping interface and subaqueous work.
Summary of the invention
The applicant is unexpected under study for action to be found, related fly ash synthesized channel joint material in " fly ash synthesized channel joint impervious material and preparation method thereof " of applicant (patent No. ZL 200310118992.X), can be successfully at damping interface or in the application of subaqueous work, can solve the humid zone water adhesion problem that is run in the actual engineering fully, satisfy the engineering instructions for use.
This fly ash synthesized channel joint impervious material comprises the second material of the first material of gradation composition and formula components preparation, and use is formulated by second material and first material mass ratio 5: 1, and the first material is a Polyether-Polyol Polyurethane Prepolymer, and the prescription quality ratio of second material is:
Flyash: 60%～70%;
100# petroleum bitumen: 20%～30%;
Thin oil: 5%～7%;
Toluene: 1%～1.8%;
4,4-diaminourea-3,3 dichloro-benzenes methane: 1%～2%;
Castor oil: 0.6%～0.7%;
Dibutyl phthalate (DBP): 0.2%～0.3%;
Antioxidant 1010: 0.07%;
Ultra-violet absorber UV-327:0.07%;
Organotin: 0.06%;
The summation of above-mentioned raw materials is 100%.
The preparation method of second material is, 100# petroleum bitumen, thin oil, the castor oil of prescription are heated to 125 ℃ of dehydrations 2 hours, add half flyash, stir, in 125 ℃, kept 2 hours, reduce to 105 ℃ and add 4,4-diaminourea-3,3 dichloro-benzenes methane, dibutyl phthalate (DBP), pour in the reactor evenly, behind the reaction 30min, add organotin with mechanical agitation, be cooled to 80 ℃ of adding toluene, antioxidant 1010 and ultra-violet absorber UV-327 and stir, add remaining flyash at last and be stirred to paste.
Description of drawings
Fig. 1 is an adhesion strength test schematic diagram.
The present invention is described in further detail for application process that provides below in conjunction with the inventor and experiment.
The specific embodiment
Further study according to the applicant, as long as above-mentioned fly ash synthesized channel joint impervious material is according to certain method, can be used at damping interface or at subaqueous work, the applicant tests in damping interface or water this material, experimental results show that, this fly ash synthesized channel joint material reaches more than 80% of adhesion strength at dry interface in the adhesion strength of damping interface or subaqueous work, can solve the humid zone water adhesion problem that is run in the actual engineering fully, satisfy the engineering instructions for use.
Fly ash synthesized channel joint material of the present invention can be used according to the following method that the inventor provides at damping interface or in the application of subaqueous work:
1, the fly ash synthesized channel joint material is in the damping interface construction application
The fly ash synthesized channel joint material carries out according to the following step in the damping interface construction application:
1) granule foreign on the damping interface or earth etc. are cleaned out;
2) pour into or embed fly ash synthesized channel joint material (patent No. ZL 200310118992.X) in the seam;
3) joint surface is covered with kraft or newspaper or sealed polyethylene plastic, and its edge is fixed with adhesive tape;
4) use weight compactings such as fragment of brick, stone above;
5) 2 hours summers, in 4 hours winters, with fragment of brick, weights such as stone take down spring and autumn after 3 hours.
6) adhesive tape is thrown off, kraft, newspaper can take down, and when waiting channel to cross water, just come off naturally.Polyethylene sheeting and flyash channel joint material are non-caked, easily it are taken off.
2, the fly ash synthesized channel joint material is in the application of subaqueous work
The fly ash synthesized channel joint material carries out according to the following step in the application of subaqueous work:
1) will treat in the water that granule foreign on the bonding interface or earth etc. cleans out.
2) position that will be to be glued forms a relatively chamber of sealing with plastic foam plate etc.;
3) fly ash synthesized channel joint material (patent No. ZL 200310118992.X) is poured in grease gun or applicator gun or the solid polybag;
4) will irritate the grease gun of fly ash synthesized channel joint material or applicator gun or polybag and put into water, the muzzle of grease gun or applicator gun is aimed in the bonding chamber, if use polybag, polybag one angular alignment bonding is looked bonding chamber size cut off a size and the corresponding openning in bonding chamber.
5) if this bonding chamber is a level, joint filler is pressed into the bonding chamber in water, moisture in the chamber is extruded, with the joint filler tamping, joint filler is closely contacted with limit, the chamber wall that bonds with waddy or metal tamper.With the ganoid baffle plate that is surrounded by polyethylene sheeting (can be plank, metal sheet, slabstone etc.) will the bond outside compacting in chamber and the weight (stone, fragment of brick or metal derby etc.) of exerting pressure on top.
6) if this bonding chamber is vertical or inclination in water, with the ganoid baffle plate that is surrounded by polyethylene sheeting (can be plank, metal sheet, slabstone etc.) will the bond outside compacting in chamber and fixing, an osculum is left on top, and joint filler is pressed in the chamber gradually from the top osculum, simultaneously water is extruded in the chamber, after joint filler filled up, the baffle plate that this osculum is surrounded by polyethylene sheeting with another fritter was sealed and is fixing.
7) 4 hours summers, in 8 hours winters, with fragment of brick, weight such as stone and baffle plate take down and get final product spring and autumn after 6 hours.
3, concrete adhesion strength experimental technique is as follows:
Bonding substrates adopts above reinforced cement-mortar board of the 28 day dry length of time, it is of a size of 75mm * 25mm * 12mm, each sample comprises two blocks of reinforced cement-mortar boards, two blocks of reinforced cement-mortar boards are kept flat, the 12mm distance is stayed in the centre, and two uses the waxdip wooden unit of 12mm * 12mm * 12.5mm as isolating cushion block respectively.On separate paper, two bonding substrates and two isolation cushion blocks are assembled into cavity.With water on the surface brush of bonding substrates, the joint filler pointing that stirs is gone in the cavity.Note avoiding forming bubble, test portion is squeezed on the bonding plane of base material, it is closely knit to bond, and finishing test portion surface makes it the upper surface flush with base material and cushion block.The sample for preparing is placed a test in the length of time in week under standard conditions.
Or with 28 days dry reinforced cement-mortar boards more than the length of time of bonding substrates employing, it is of a size of 75mm * 25mm * 12mm, each sample comprises two blocks of reinforced cement-mortar boards, two blocks of reinforced cement-mortar boards are kept flat, the 12mm distance is stayed in the centre, and two uses the waxdip wooden unit of 12mm * 12mm * 12.5mm as isolating cushion block respectively.On separate paper, two bonding substrates and two isolation cushion blocks are assembled into cavity.Above device is put into water, the joint filler that stirs is poured in the applicator gun, in applying glue muzzle aligned with cavities, joint filler is pressed in the cavity, moisture in the chamber is discharged, finishing test portion surface makes it the upper surface flush with base material and cushion block.The sample for preparing is tested in placing a length of time in week in water.
As shown in Figure 1, in adhesion strength when test,, the sample 3 that will have a bonding substrates 2 is put into 1 li of the anchor clamps of the universal testing machine of 10KN, stretches with the speed of 5mm/min, till being pulled to sample 3 and destroying, writes down powerful value and elongation.Is exactly the adhesion strength value with the brute force value divided by bond area 600mm.
Example 1 is executed in experiment, and recording adhesion strength on the dried noodle is 1.02MPa, and recording adhesion strength on the damping interface is 0.91MPa, adhesion strength 0.83MPa in the water.
Example 2 is executed in experiment, and recording adhesion strength on the dried noodle is 1.10MPa, and recording adhesion strength on the damping interface is 0.93MPa, adhesion strength 0.84MPa in the water.
Example 3 is executed in experiment, and recording adhesion strength on the dried noodle is 0.92MPa, and recording adhesion strength on the damping interface is 0.81MPa, adhesion strength 0.73MPa in the water.
Above adhesion strength value all greater than the 0.2MPa adhesion strength value of GB JC/T482 and JC/T483 regulation, can satisfy the engineering requirement of actual application far away.
Claims (1)
1. a fly ash synthesized channel joint impervious material is in the damping interface construction application, described fly ash synthesized channel joint impervious material, comprise the first material of gradation composition and the second material of formula components preparation, use is formulated by second material and first material mass ratio 5: 1, the first material is a Polyether-Polyol Polyurethane Prepolymer, and the prescription quality ratio of second material is:
Flyash: 60%～70%;
100# petroleum bitumen: 20%～30%;
Thin oil: 5%～7%;
Toluene: 1%～1.8%;
4,4-diaminourea-3,3 dichloro-benzenes methane: 1%～2%;
Castor oil: 0.6%～0.7%;
Dibutyl phthalate (DBP): 0.2%～0.3%;
Antioxidant 1010: 0.07%;
Ultra-violet absorber UV-327:0.07%;
Organotin: 0.06%;
The summation of above-mentioned raw materials is 100%;
The preparation method of second material is, 100# petroleum bitumen, thin oil, the castor oil of prescription are heated to 125 ℃ of dehydrations 2 hours, add half flyash, stir, in 125 ℃, kept 2 hours, reduce to 105 ℃ and add 4,4-diaminourea-3,3 dichloro-benzenes methane, dibutyl phthalate (DBP), pour in the reactor evenly, behind the reaction 30min, add organotin with mechanical agitation, be cooled to 80 ℃ of adding toluene, antioxidant 1010 and ultra-violet absorber UV-327 and stir, add remaining flyash at last and be stirred to paste;
Described fly ash synthesized channel joint material carries out according to the following step in the damping interface construction application:
1) granule foreign on the damping interface or earth are cleaned out;
2) pour into or embed the fly ash synthesized channel joint material in the seam;
3) joint surface is covered with kraft or newspaper or sealed polyethylene plastic, and its edge is fixed with adhesive tape;
4) top with fragment of brick or stone compacting;
5) 2 hours summers, in 4 hours winters, after spring, 3 hours autumns fragment of brick or stone are taken down;
6) adhesive tape is thrown off, kraft or newspaper need not take down, and come off naturally when waiting channel to cross water, and polyethylene sheeting and flyash channel joint material are non-caked, easily it are taken off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101508190A CN101349045B (en) | 2008-09-05 | 2008-09-05 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101508190A CN101349045B (en) | 2008-09-05 | 2008-09-05 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101755525A Division CN101684643B (en) | 2008-09-05 | 2008-09-05 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101349045A CN101349045A (en) | 2009-01-21 |
| CN101349045B true CN101349045B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101508190A Expired - Fee Related CN101349045B (en) | 2008-09-05 | 2008-09-05 | Application of coal ash synthetic channel jointing material on damping interface or in water construction |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351173A (en) * | 2013-07-08 | 2013-10-16 | 陕西煤业化工建设（集团）有限公司 | Sealant used during impermeable concrete test |
| CN104110011B (en) * | 2014-07-29 | 2016-05-04 | 中国葛洲坝集团第五工程有限公司 | For device and the method for filling of rock surface watertight seal steel cage perfusion powder coal ash |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1150291A1 (en) * | 1983-10-05 | 1985-04-15 | Vnii Gidrotekh | Counter-seepage roof for storages |
| CN1228409C (en) * | 2003-12-15 | 2005-11-23 | 西北农林科技大学 | Coal ash synthesized channel joint impermeable material and its preparation method |
| CN1242126C (en) * | 2003-12-15 | 2006-02-15 | 西北农林科技大学 | Channel joint leakage prevention construction method |
| CN1317458C (en) * | 2005-07-14 | 2007-05-23 | 西北农林科技大学 | Construction method of channel seam seepage control |
-
2008
- 2008-09-05 CN CN2008101508190A patent/CN101349045B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1150291A1 (en) * | 1983-10-05 | 1985-04-15 | Vnii Gidrotekh | Counter-seepage roof for storages |
| CN1228409C (en) * | 2003-12-15 | 2005-11-23 | 西北农林科技大学 | Coal ash synthesized channel joint impermeable material and its preparation method |
| CN1242126C (en) * | 2003-12-15 | 2006-02-15 | 西北农林科技大学 | Channel joint leakage prevention construction method |
| CN1317458C (en) * | 2005-07-14 | 2007-05-23 | 西北农林科技大学 | Construction method of channel seam seepage control |
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| CN101349045A (en) | 2009-01-21 |
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Granted publication date: 20100602 Termination date: 20100905 |