CN101121812A - Epoxy resin base fast repairing material and preparation method thereof - Google Patents
Epoxy resin base fast repairing material and preparation method thereof Download PDFInfo
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- CN101121812A CN101121812A CNA2007100294537A CN200710029453A CN101121812A CN 101121812 A CN101121812 A CN 101121812A CN A2007100294537 A CNA2007100294537 A CN A2007100294537A CN 200710029453 A CN200710029453 A CN 200710029453A CN 101121812 A CN101121812 A CN 101121812A
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Abstract
The present invention provides an epoxy resin-based rapid repairing material and the preparation method. The epoxy resin-based rapid repairing material is made of the sand, talcum powder, epoxy resin, polyamide and diluent. The preparation method includes: the epoxy resin and the diluent are mixed well; the polyamide is added and stirred to form the epoxy serum; the sand and talcum powder are mixed well; the epoxy serum and the mixture of the sand and talcum powder are stirred evenly; the acquired epoxy resin-based rapid repairing material can reach the effect of the moderate cost, the early strength (3d can reach 60 MPa), the moderate strength in the later period, the good adhesive connection, the convenient construction, the short construction period and no closure of the traffic; the epoxy resin-based rapid repairing material can be used to repair the concrete buildings such as the bridge, the tunnel, the road, the house and so on.
Description
Technical field
The present invention relates to civil engineering work, be specifically related to a kind of epoxy resin base fast repairing material.
Background technology
Owing to be subjected to the influence that external conditionss such as heavy traffic load, environment change, make the concrete structure tension face occur the crack easily, repair if these concrete members are untimely, its use properties will descend rapidly, influences functions of use, structural safety and traffic safety.And generally there is the tendency that weighs intensity (security) and gently use (weather resistance) in people to the research of engineering structure performance and design for a long time, cause the endurance issues of buildings very outstanding, the also sharp increase of the maintenance cost of input.In order to recover after the traffic critical facilitys such as functions of use, especially bridge of concrete structures such as labour bridge, road and house are impaired, all to wish to finish apace repairing, so that can recover its use as soon as possible.Existing patching material commonly used mainly contains sand-cement slurry and epoxy resin mortar.
The process that adopts sand-cement slurry to repair mainly comprises: (1) is with concrete surface cutter hair; (2) water cleans up crack or blemish surface place dust, scum silica frost and unconsolidated formation etc.; (3) sand-cement slurry is scraped smear fracture faces.The preparation process of sand-cement slurry is: (1) is dissolved in the water admixture; (2) cement, sand, filler etc. stir in proportion; (3) aqueous solution and cement etc. is stirred.Adopt sand-cement slurry to have following problem as patching material: (1) sand-cement slurry and concrete body bonding are bad; (2) early strength is not high; (3) construction period is long.
The process that adopts epoxy resin mortar to repair mainly comprises: (1) is with concrete surface cutter hair; (2) with inflator etc. crack or blemish surface place dust, scum silica frost and unconsolidated formation etc. are blown clean, expose concrete body, and contact surface is cleaned up with acetone; (3) etc. after the surface drying, epoxy resin mortar scraped smear fracture faces.The preparation process of epoxy mortar is: (1) is heated to 60 ~ 75 ℃ with water-bath with Resins, epoxy; (2) add thinner and solidifying agent then, be stirred into epoxy slurry; (3) filler and sand are mixed; (4) epoxy slurry and sand are stirred.Compare with sand-cement slurry with repairing, it is little that epoxy resin mortar has cure shrinkage, strong with concrete binding power, the intensity height, and anti-impact is ground advantages such as the cavitation erosion performance is good.The part but epoxy resin mortar also comes with some shortcomings: the later strength of (1) mortar is too high.The requirement that only need satisfy engineering as patching material gets final product, and too high intensity is a kind of waste in fact, and too high local strength is harmful to engineering structure on the contrary; (2) the price comparison height of epoxy resin mortar, the cost of one square metre epoxy emulsion sand-cement slurry is about 10,000 yuan; (3) Resins, epoxy viscosity is big, needs when construct winter just can carry out the preparation of slurries to the used for epoxy resin heating in water bath to certain temperature earlier; (4) the part starting material are poisonous, the health of harmful to human and contaminate environment.
Summary of the invention
The objective of the invention is to weak point, the epoxy resin base fast repairing material that a kind of nontoxicity or toxicity are very little, preparation manipulation is easy, with low cost is provided at existing epoxy resin mortar.
Another object of the present invention provides the preparation method of described epoxy resin base fast repairing material.
Epoxy resin base fast repairing material of the present invention be by sand, talcum powder, Resins, epoxy, polymeric amide and thinner by sand: talcum powder: Resins, epoxy: polymeric amide: thinner is 70-75: 10-15: 5-10: 4-10: the 0.5-1.5 weight part is made.
Prescription after the optimization is a sand: talcum powder: Resins, epoxy: polymeric amide: thinner is 72-75: 12-15: 5-8: 4-7: the 0.5-1.5 weight part.
Described thinner adopts organic solvent, preferred acetone or phenylformic acid.
The preparation method of epoxy resin base fast repairing material of the present invention comprises the steps:
(1) Resins, epoxy and mixing diluents is even, add polymeric amide and be stirred into epoxy slurry;
(2) sand and talcum powder are mixed;
(3) sand and the talcum powder mixture that obtain of epoxy slurry that step (1) is obtained and step (2) stirs.
Epoxy resin base fast repairing material of the present invention can be used for the repairing of concrete structures such as bridge, tunnel, road and house, and method for repairing and mending comprises: concrete surface is handled; Then will make Resins, epoxy high-pressure grouting joint seal for band crack member handles.
The present invention has the following advantages and beneficial effect compared with prior art:
(1) the basic nontoxicity of starting material or toxicity is very little, preparation manipulation is easy;
(2) good flowing properties of mortar;
(3) epoxy slurry do not need to carry out heating in water bath, easy construction, duration short, without close traffic;
(4) sample early strength height, later strength are moderate;
(5) cost of material is lower, cohesiveness good.
Embodiment
Embodiment 1: the basic recipe such as the table 1 of the epoxy resin base fast repairing material of employing:
Table 1 epoxy resin base fast repairing material prescription (kilogram)
| Starting material | Resins, epoxy | Polymeric amide | Thinner | Sand | Talcum powder |
| 1 | 8 | 4 | 0.8 | 74 | 14 |
| 2 | 6 | 6 | 1.0 | 75 | 12 |
| 3 | 5 | 7 | 0.5 | 73 | 13 |
| 4 | 7 | 5 | 1.5 | 72 | 15 |
Prepare epoxy resin base fast repairing material by method of the present invention.
Embodiment 2: the basic recipe such as the table 2 of the epoxy resin base fast repairing material of employing:
Table 2 epoxy resin base fast repairing material prescription (kilogram)
| Numbering | Resins, epoxy | Polymeric amide | Thinner | Sand | Talcum powder |
| 5 | 8 | 7 | 1.5 | 71 | 12-13 |
| 6 | 9 | 8 | 1.0 | 75 | 12-13 |
| 7 | 10 | 9 | 0.5 | 70 | 12-13 |
| 8 | 10 | 10 | 1.1 | 72 | 12-13 |
Prepare epoxy resin base fast repairing material by method of the present invention.
Embodiment 3: with reference to the test method of defined among the GB/T 1767-1999 " Test method for strength of hydraulic cement mortar (ISO method) ", according to the prescription in table 1 and the table 2 epoxy resin base fast repairing material is prepared into mortar specimen and carries out compressive strength test, the experimental result of ultimate compression strength sees Table 3.
The ultimate compression strength of table 3 epoxy resin base fast repairing material
| Numbering | Ultimate compression strength (MPa) | |||
| 1 day | 3 days | 7 days | 28 days | |
| 1 2 3 4 5 6 7 8 | 18.4 21.7 38.4 27.5 17.4 18.1 16.8 19.2 | 60.1 65.2 70.0 68.0 59.5 59.2 59.0 59.0- | 66.1 60.7 78.2 67.3 58.3 62.3 69.4 58.8 | 66.3 60.5 80.2 66.8 60.5 61.5 67.4 57.9 |
In the above-mentioned test,, prepare the sample of 3 40 * 40 * 160mm in each prescription each length of time with reference to the regulation of national standard, amount to 96 samples, maintenance is carried out compression tests on pressing machine after the length of time, obtained the experimental data (wherein, 3 invalid datas being arranged) of 192 ultimate compression strength.The discreteness of experimental data is very little, and this homogeneity that this material is described is relatively good.Table 3 column data is the mean value of each sample measured data, these table data show, 3 days intensity of the epoxy resin base fast repairing material that the present invention is prepared can reach 60-70MPa, and their 28 days intensity remain unchanged or increase rate less than 15%, the morning that has reached fast repairing material of the present invention is by force and the moderate requirement of later strength.
Embodiment 4: the price ratio of epoxy resin base fast repairing material
The used part raw material market price of epoxy resin base fast repairing material of the present invention sees Table 4.From the table as can be known the prices of raw and semifnished materials the highest be Resins, epoxy and polymeric amide, secondly be thinner.Therefore, in the epoxy resin mortar cost the highest be the Resins, epoxy slurries.
Table 4 raw material market price (in March, 2007)
| Starting material | Sand | Talcum powder | Resins, epoxy |
| Market price (unit/ton) | 300 | 170 | 26600 |
| Starting material | Polymeric amide | Phenylcarbinol | Acetone |
| Market price (unit/ton) | 26000 | 13500 | 10300 |
The present invention is the cost that reduces patching material by the consumption that reduces Resins, epoxy slurries in the material.Each prescription carries out the calculating of cost according to each raw-material market value in the table 4 and every cubical consumption in the his-and-hers watches 1, and calculation result sees Table 5.
The pricing of table 5 epoxy resin mortar
| Prescription | 1 | 2 | 3 | 4 |
| Total cost/unit | 7908.1 | 8554.8 | 8711.9 | 8165.3 |
Cost of visible each prescription of data from table is that 10,000 yuan epoxy resin mortar is compared its cost 11-26% that descended with cost about 7900-9000 unit.
Embodiment 5: the epoxy resin base fast repairing material that adopts embodiment 1 to viaduct about 4 seams (cracking) of each 2 case beam base plate, two coxostermums and both sides flange plate of striding of the width of cloth repair.Concrete method for repairing and mending is as follows: the concrete surface layer of bridge under casing beam seam being repaired the position cuts, and after the employing air compressor blows clean its surface dust, scum silica frost and unconsolidated formation etc., cleans surface in contact with acetone; After the clean surface drying, the patching material for preparing is placed on the top board, by top board patching material is placed joint surface and fixing; After 1 day, remove top board, patching material is carried out processing attractive in appearance such as deburring.This repairing work does not need close traffic, can finish under the situation that this viaduct is open to traffic.
Embodiment 6: (area is 2m * 8m) repair to the case beam underplate concrete protective layer exfoliation of viaduct to adopt the epoxy resin base fast repairing material of embodiment 2.Concrete method for repairing and mending is as follows: with the concrete chisel removal of bridge under casing beam underplate concrete protective layer exfoliation, after the employing air compressor blows clean its surface dust, scum silica frost and unconsolidated formation etc., clean surface in contact with acetone; After the clean surface drying, the patching material for preparing is placed on the top board, place the surface of repairing the position also fixing patching material by top board; After 1 day, remove top board, patching material is carried out processing attractive in appearance such as deburring.This repairing work does not need close traffic yet, can finish under the situation that this viaduct is open to traffic.
Embodiment 7: adopt the epoxy resin base fast repairing material of embodiment 1 that 1 seam (crack) of case beam base plate, two coxostermums and the both sides flange plate of the right width of cloth of overbridge is repaired.Concrete method for repairing and mending is as follows: the concrete surface layer of bridge under casing beam seam being repaired the position cuts, and after the employing air compressor blows clean its surface dust, scum silica frost and unconsolidated formation etc., cleans surface in contact with acetone; After the clean surface drying, the patching material for preparing is placed on the top board, by top board patching material is placed joint surface and fixing; After 1 day, remove top board, patching material is carried out processing attractive in appearance such as deburring.This repairing work does not need close traffic, can finish under the situation that this overbridge is open to traffic.
Embodiment 8: the epoxy resin base fast repairing material that adopts embodiment 2 to viaduct about 4 seams (crack) of each 2 case beam base plate, two coxostermums and both sides flange plate of striding of the width of cloth repair.Method for repairing and mending is identical with above-mentioned engineering.
Embodiment 9: the epoxy resin base fast repairing material that adopts embodiment 1 to overbridge about the width of cloth 4 seams (crack) of totally 4 case beam base plate, two coxostermums and the both sides flange plates of striding repair.Method for repairing and mending is identical with above-mentioned engineering.
Embodiment 10: the epoxy resin base fast repairing material that adopts embodiment 2 to viaduct about the width of cloth 7 seams (crack) of totally 7 case beam base plate, two coxostermums and the both sides flange plates of striding repair.Method for repairing and mending is identical with above-mentioned engineering.
Claims (4)
1. epoxy resin base fast repairing material, it is characterized in that by sand, talcum powder, Resins, epoxy, polymeric amide and thinner by sand: talcum powder: Resins, epoxy: polymeric amide: thinner is 70-75: 10-15: 5-10: 4-10: the 0.5-1.5 weight part is made.
2. epoxy resin base fast repairing material according to claim 1 is characterized in that by sand: talcum powder: Resins, epoxy: polymeric amide: thinner is 72-75: 12-15: 5-8: 4-7: the 0.5-1.5 weight part is made.
3. epoxy resin base fast repairing material according to claim 1 and 2 is characterized in that described thinner adopts acetone or phenylformic acid.
4. the preparation method of the described epoxy resin base fast repairing material of one of claim 1-4 is characterized in that comprising the steps:
(1) Resins, epoxy and mixing diluents is even, add polymeric amide and be stirred into epoxy slurry;
(2) sand and talcum powder are mixed;
(3) sand and the talcum powder mixture that obtain of epoxy slurry that step (1) is obtained and step (2) stirs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100294537A CN101121812B (en) | 2007-07-27 | 2007-07-27 | Epoxy resin base fast repairing material and preparation method thereof |
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| CN2007100294537A CN101121812B (en) | 2007-07-27 | 2007-07-27 | Epoxy resin base fast repairing material and preparation method thereof |
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| CN101121812A true CN101121812A (en) | 2008-02-13 |
| CN101121812B CN101121812B (en) | 2010-09-01 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102464863A (en) * | 2010-11-04 | 2012-05-23 | 中国石油化工股份有限公司 | Color pavement cementing material and application thereof |
| CN102505641A (en) * | 2011-09-30 | 2012-06-20 | 宁波天意钢桥面铺装技术有限公司 | Repair reinforcing structure of steel bridge deck and repair reinforcing method of repair reinforcing structure |
| CN102995914A (en) * | 2012-12-25 | 2013-03-27 | 深圳职业技术学院 | Method for repairing cracks of building walls |
| CN103038054A (en) * | 2010-08-09 | 2013-04-10 | 伊利诺斯工具制品有限公司 | Material and applicator for pinhole and small defect repair |
| CN103510445A (en) * | 2013-09-13 | 2014-01-15 | 同济大学 | Conductive ultra-thin wearing layer and preparation method thereof |
| CN104129942A (en) * | 2014-07-23 | 2014-11-05 | 中国建筑第八工程局有限公司 | Concrete surface color difference elimination preparation and construction method thereof |
| CN106495565A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of epoxy radicals pavement patching material |
| CN105658602B (en) * | 2013-10-30 | 2019-04-05 | Dic株式会社 | Concrete repairing material |
| CN111331762A (en) * | 2020-02-24 | 2020-06-26 | 沈阳中航迈瑞特工业有限公司 | Preparation process of epoxy resin daub mould |
| CN112696045A (en) * | 2021-01-11 | 2021-04-23 | 陈从举 | Method for treating cracking of hardened concrete aggregate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1093069A (en) * | 1993-03-20 | 1994-10-05 | 高秀峰 | Polymer concrete |
| CN1922268A (en) * | 2003-12-30 | 2007-02-28 | 金相洋 | Epoxy resin mortar composition and a method of coating the same on concrete surface |
| CN1274626C (en) * | 2004-04-13 | 2006-09-13 | 中国水利水电第十一工程局勘测设计院 | Epoxy resin mortar and preparation method |
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2007
- 2007-07-27 CN CN2007100294537A patent/CN101121812B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103038054A (en) * | 2010-08-09 | 2013-04-10 | 伊利诺斯工具制品有限公司 | Material and applicator for pinhole and small defect repair |
| CN102464863B (en) * | 2010-11-04 | 2015-01-21 | 中国石油化工股份有限公司 | Color pavement cementing material and application thereof |
| CN102464863A (en) * | 2010-11-04 | 2012-05-23 | 中国石油化工股份有限公司 | Color pavement cementing material and application thereof |
| CN102505641A (en) * | 2011-09-30 | 2012-06-20 | 宁波天意钢桥面铺装技术有限公司 | Repair reinforcing structure of steel bridge deck and repair reinforcing method of repair reinforcing structure |
| CN102995914A (en) * | 2012-12-25 | 2013-03-27 | 深圳职业技术学院 | Method for repairing cracks of building walls |
| CN103510445A (en) * | 2013-09-13 | 2014-01-15 | 同济大学 | Conductive ultra-thin wearing layer and preparation method thereof |
| CN103510445B (en) * | 2013-09-13 | 2015-07-08 | 同济大学 | Conductive ultra-thin wearing layer and preparation method thereof |
| CN105658602B (en) * | 2013-10-30 | 2019-04-05 | Dic株式会社 | Concrete repairing material |
| CN104129942A (en) * | 2014-07-23 | 2014-11-05 | 中国建筑第八工程局有限公司 | Concrete surface color difference elimination preparation and construction method thereof |
| CN106495565A (en) * | 2016-10-20 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method of epoxy radicals pavement patching material |
| CN111331762A (en) * | 2020-02-24 | 2020-06-26 | 沈阳中航迈瑞特工业有限公司 | Preparation process of epoxy resin daub mould |
| CN111331762B (en) * | 2020-02-24 | 2021-12-28 | 沈阳中航迈瑞特工业有限公司 | Preparation process of epoxy resin daub mould |
| CN112696045A (en) * | 2021-01-11 | 2021-04-23 | 陈从举 | Method for treating cracking of hardened concrete aggregate |
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| CN101121812B (en) | 2010-09-01 |
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