CN103572962A - Bonding method of steel plate and cast-in-place concrete or cement mortar - Google Patents
Bonding method of steel plate and cast-in-place concrete or cement mortar Download PDFInfo
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- CN103572962A CN103572962A CN201210278568.0A CN201210278568A CN103572962A CN 103572962 A CN103572962 A CN 103572962A CN 201210278568 A CN201210278568 A CN 201210278568A CN 103572962 A CN103572962 A CN 103572962A
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Abstract
The invention discloses a bonding method of a steel plate and cast-in-place concrete or cement mortar, and relates to a construction method of bonding the steel plate and the cast-in-place concrete or the cement mortar. The invention aims at solving the problem of incapability of bonding the steel plate and the cast-in-place concrete or the cement mortar. The bonding method 1 comprises the following steps of adding a water-soluble adhesive into the cement so as to form cement polymer slurry, wherein the amount of the added cement is measured according to the obtained thick cement after stirring, painting or wiping the cement polymer slurry on the steel plate, taking the cement polymer slurry as a transition layer after drying, painting or wiping the cement polymer slurry on the steel plate, and then pouring, troweling and compacting the cast-in-place concrete or the cement mortar on the steel plate. The bonding method 2 comprises the following steps of wiping structural glue on the steel plate, and then pouring, troweling and compacting the cast-in-place concrete or the cement mortar on the steel plate. The bonding method has the advantages of capability of greatly increasing the bonding strength of the steel plate and the cast-in-place concrete, simple and convenient construction, low construction cost and wide application.
Description
Technical field
The present invention relates to architectural a kind of steel plate and the adhesive method of cast-in-situ concrete or cement mortar.
Background technology
In < < steel reinforced concrete design specifications > >, stipulate, intensive peg opposing is installed on the edge of a wing of section steel beam along the shearing force on the face of the edge of a wing, peg diameter is 19～22mm, and peg length and spacing are had to regulation.This is because the adhesion strength between concrete and shaped steel is very low, can not bear shearing force.
It is ZL201020148864.5 that applicant has the patent No., and denomination of invention is the patent of " a kind of Profiled steel plate composite board ", and also having a number of patent application is 201010279845.0, and denomination of invention is the patent of " a kind of light plate ".These two patents all relate to how by the problem of steel plate and cast-in-situ concrete or cement mortar secure bond.
Applicant has number of patent application 201019185057.2, the patent of denomination of invention " combined wall that a kind of both sides have net to plaster ", while applying this combined wall in steel building, also relate to and how to solve sandwich layer (or being referred to as insulation layer) and shaped steel or the bonding difficult problem of steel plate.
Evidence, even by the cement polymer mortar that contains bonding adhesive or the cement polymer concrete of current adhesive insulating layer preparation, this cement polymer mortar or cement polymer concrete can not reliably bond with steel plate.
Summary of the invention
The adhesive method that the object of this invention is to provide a kind of steel plate and cast-in-situ concrete or cement mortar.
The adhesive method of the first steel plate of the present invention and cast-in-situ concrete or cement mortar: described adhesive method is pollutant, the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is water soluble adhesive, and described cast-in-situ concrete or cement mortar are ordinary concrete or cement mortar, or is the cement mortar of the concrete of modification or modification; Water soluble adhesive is added to cement, after stirring, be thick, form cement polymer slurry, by the brushing of cement polymer slurry or scrape and smear on steel plate, form transition zone after dry; Again by the brushing of cement polymer slurry or scrape on the steel plate of smearing transition zone, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding;
1), add the cement mortar that Admixture, flyash, stone flour, waterproof agent, water-loss reducer, resistance split cast-in-situ concrete or the modification of fiber and other material modification the cast-in-situ concrete of described modification or the cement mortar of modification refer to:.2), also comprise cement polymer mortar or the cement polymer concrete that adds water, water-loss reducer, macromolecule adhesive formation.
The adhesive method of the second steel plate of the present invention and cast-in-situ concrete or cement mortar, described adhesive method is pollutant or the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is epoxy resin structural adhesive or PU structural adhesive; Structure glue is scraped and smeared on steel plate, and concrete or cement mortar are poured onto to screeding and compaction on steel plate thereupon.
Technique effect of the present invention: the adhesive method of a kind of steel plate of the present invention and cast-in-situ concrete or cement mortar can increase the adhesion strength between steel plate and concrete greatly, can be applied in three patents of the applicant described in background technology, in order to by steel plate or bond between steel and concrete, also can be applicable in steel reinforced concrete, increase the adhesion strength between concrete and shaped steel, it is simple and convenient that the present invention has construction, and cost is low, the advantage of wide application.
Embodiment
Embodiment one: a kind of steel plate of present embodiment and the adhesive method of cast-in-situ concrete or cement mortar, described adhesive method is pollutant, the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is water soluble adhesive, and described cast-in-situ concrete or cement mortar are ordinary concrete or cement mortar, or is the cement mortar of the concrete of modification or modification; Water soluble adhesive is added to cement, after stirring, be thick (cement weight is that 0.5～2 times of emulsion weight can be thick), form cement polymer slurry, by the brushing of cement polymer slurry or scrape and smear on steel plate, form transition zone after dry; Again by the brushing of cement polymer slurry or scrape on the steel plate of smearing transition zone, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding;
1), add Admixture, flyash, stone flour, waterproof agent, water-loss reducer, resistance and split the cast-in-situ concrete of material modification or the cement mortar of modification such as fiber (as polypropylene chopped strand, polyester fiber, glass fiber, basalt fibre etc.) cast-in-situ concrete of described modification or the cement mortar of modification refer to:.2), also comprise cement polymer mortar or the cement polymer concrete that adds water, water-loss reducer, macromolecule adhesive formation.
Evidence, by one～tetra-pair of steel plate of embodiments of the present invention, carry out pull-out test, as long as the cement polymer slurry of preparation or the intensity of cement polymer mortar are not less than bonded concrete or strength of cement mortar, pull-out test result is that bonded concrete or cement mortar is pulled off destruction.
Water soluble adhesive can be used polyacrylic acid fat liquor, vinyl acetate-ethylene emulsion or polyaminoester emulsion, or other tests effective water soluble adhesive.Polyacrylate dispersion bonding adhesive is durability best material in all bonding adhesive.
Using the cement polymer slurry brushing of present embodiment or scrape that to smear on steel plate be the transition zone as with steel plate bonding, after cement polymer slurry drying on steel plate, again by the brushing of cement polymer slurry or scrape and smear on steel plate, with cement polymer paste by cast-in-situ concrete or cement mortar and transition zone bonding, thereby bond with steel plate.
Germany's thin floated coat of mask outside the EPS plate thin plastering body of wall of pasting the seventies destroys; progressively keep in repair; when maintenance, analyzed the polymer mortar having used more than 30 years; think that the EPS plate of former stickup need not remove; only the thin topping of plastering of outer mask is removed; paste again the thick EPS plate of 100mm in the above, this explanation is not subject to the bonding adhesive durable years that ultraviolet ray is irradiated to be not less than 60 years.Therefore the adhesive method of a kind of steel plate of the present invention and cast-in-situ concrete or cement mortar can reach durable years and is not less than 60 years
Embodiment two: the difference of present embodiment and embodiment one is that present embodiment also increases silicon ash, the cement silicon ash polymer paste that preparation contains silicon ash; By the polymer paste brushing of cement silicon ash or scrape and smear on steel plate, after dry as transition zone, again by the ash polymer paste brushing of cement polymer slurry or cement silicon or scrape on the steel plate of smearing the cement polymer slurry that bonds, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding, 1%～15% of the about mass of cement of silicon ash.
Silicon ash (being SILICA FUME) is quasi-nano silica, and its particle diameter is 150～250 nanometers.Present embodiment is to utilize the small-size effect of silicon ash, and silicon ash has the effect that increases concrete strength, the cement silicon ash polymer paste that contains silicon ash and the adhesion strength of steel plate are greater than the adhesion strength of cement polymer slurry and steel plate, thereby increase the adhesion strength of steel plate and cast-in-situ concrete or cement mortar.And be brushed to cement silicon on steel plate ash polymer paste dry after, then in the polymer paste of brushing, can have silicon ash, also can not contain silicon ash because not containing the polymer paste of silicon ash is and transition zone bonding, rather than bondd with steel plate.
Evidence adds the adhesion strength that can greatly increase steel plate and cast-in-situ concrete or cement mortar after silicon ash, and the ratio that adds silicon ash is with reference to the ratio-dependent that adds silicon ash and cement in high-strength concrete.Also available other superfine powder substituted for silicon ash, whether, as the levigate stone flour of nano-calcium carbonate or stone material producer, the particle diameter of superfine powder should be nanoscale～quasi-nano, should determine and add certain superfine powder effective by testing, and adds quantity suitable.
Embodiment three: present embodiment and embodiment one or twos' difference is that present embodiment increases sand; Sand is added in cement polymer slurry or cement silicon ash polymer paste, forms cement polymer mortar or cement silicon ash polymer mortar; First by the ash polymer paste brushing of cement polymer slurry or cement silicon or scrape and smear on steel plate, after dry as transition zone, again cement polymer mortar or cement silicon ash polymer mortar is scraped and smeared on steel plate, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding, the weight ratio of sand and cement is generally no more than 3: 1.
Sand does not play cementation, but after adding sand, cement polymer mortar is made in original cement polymer slurry change, its role is to, and increases and scrapes the adhesive layer thickness of smearing, and makes cast-in-situ concrete or cement mortar easily interpenetrate intersection with it, and increase sockets.
Embodiment four: the difference of one of present embodiment and embodiment one～tri-is, present embodiment increases water, add the quantity of water to be advisable to be no more than the quantity of emulsion, and corresponding increase cement consumption, the cement consumption of increase should be determined by the regulation of water/binder ratio.
Although also can, by the bonding of steel plate and concrete or cement mortar, reduce adhesion strength after adding water.When with polyacrylic acid fat liquor, vinyl acetate-ethylene emulsion preparation cement polymer mortar adhesive insulating layer, add the weight of water can reach 2～3 times of emulsion weight, but prove with the adhesion test of steel plate, even if only add the water with bonding adhesive emulsion identical weight, its adhesion strength also significantly reduces, therefore add the quantity of water to be advisable to be no more than the quantity of emulsion.
Embodiment five: a kind of steel plate of present embodiment and the adhesive method of cast-in-situ concrete or cement mortar, described adhesive method is pollutant, the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is epoxy resin structural adhesive or PU structural adhesive; Structure glue is scraped and smeared on steel plate, and concrete or cement mortar are poured onto to screeding and compaction on steel plate thereupon.
The adhesion strength of structure glue is very high, but poor durability, price is high, construction is inconvenient, approximately 30 years application life.
Claims (6)
1. an adhesive method for steel plate and cast-in-situ concrete or cement mortar, is characterized in that, described adhesive method is pollutant, the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is water soluble adhesive, and described cast-in-situ concrete or cement mortar are ordinary concrete or cement mortar, or is the cement mortar of the concrete of modification or modification; Water soluble adhesive is added to cement, after stirring, be thick, form cement polymer slurry, by the brushing of cement polymer slurry or scrape and smear on steel plate, form transition zone after dry; Again by the brushing of cement polymer slurry or scrape on the steel plate of smearing transition zone, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding;
1), add the cement mortar that Admixture, flyash, stone flour, waterproof agent, water-loss reducer, resistance split cast-in-situ concrete or the modification of fiber and other material modification the cast-in-situ concrete of described modification or the cement mortar of modification refer to:.2), also comprise cement polymer mortar or the cement polymer concrete that adds water, water-loss reducer, macromolecule adhesive formation.
2. the adhesive method of a kind of steel plate according to claim 1 and cast-in-situ concrete or cement mortar, is characterized in that, it also comprises silicon ash, the cement silicon ash polymer paste that preparation contains silicon ash; By the polymer paste brushing of cement silicon ash or scrape and smear on steel plate, after dry as transition zone, again by the ash polymer paste brushing of cement polymer slurry or cement silicon or scrape on the steel plate of smearing the cement polymer slurry that bonds, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding, 1%～15% of the about mass of cement of silicon ash.
3. the adhesive method of a kind of steel plate according to claim 1 and 2 and cast-in-situ concrete or cement mortar, is characterized in that, it also comprises sand; Sand is added in cement polymer slurry or cement silicon ash polymer paste, forms cement polymer mortar or cement silicon ash polymer mortar; First by the ash polymer paste brushing of cement polymer slurry or cement silicon or scrape and smear on steel plate, after dry as transition zone, again cement polymer mortar or cement silicon ash polymer mortar is scraped and smeared on steel plate, and cast-in-situ concrete or cement mortar are poured onto to screeding and compaction or the compacting of vibrating on steel plate thereupon, can be by cast-in-situ concrete or cement mortar and steel plate bonding, the weight ratio of sand and cement is generally no more than 3: 1.
4. the adhesive method of a kind of steel plate according to claim 1 and 2 and cast-in-situ concrete or cement mortar, it is characterized in that, it also comprises water, adds the quantity of water to be advisable to be no more than the quantity of emulsion, and corresponding increase cement consumption, the cement consumption of increase should be determined with reference to water/binder ratio.
5. the adhesive method of a kind of steel plate according to claim 3 and cast-in-situ concrete or cement mortar, it is characterized in that, it also comprises water, adds the quantity of water to be advisable to be no more than the quantity of emulsion, and corresponding increase cement consumption, the cement consumption of increase should be determined by the regulation of water/binder ratio.
6. an adhesive method for steel plate and cast-in-situ concrete or cement mortar, is characterized in that, described adhesive method is pollutant or the corrosion thing of first clearing up on steel plate, prepares bonding adhesive; Described bonding adhesive is epoxy resin structural adhesive or PU structural adhesive; Structure glue is scraped and smeared on steel plate, and concrete or cement mortar are poured onto to screeding and compaction on steel plate thereupon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210278568.0A CN103572962A (en) | 2012-08-07 | 2012-08-07 | Bonding method of steel plate and cast-in-place concrete or cement mortar |
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| CN201210278568.0A CN103572962A (en) | 2012-08-07 | 2012-08-07 | Bonding method of steel plate and cast-in-place concrete or cement mortar |
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| CN103572962A true CN103572962A (en) | 2014-02-12 |
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| CN201210278568.0A Pending CN103572962A (en) | 2012-08-07 | 2012-08-07 | Bonding method of steel plate and cast-in-place concrete or cement mortar |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080000571A1 (en) * | 2006-06-30 | 2008-01-03 | City University Of Hong Kong | Concrete reinforcement |
| CN102561719A (en) * | 2011-12-29 | 2012-07-11 | 吉林建筑工程学院 | Reinforced concrete beam reinforced by bonding steel plate |
-
2012
- 2012-08-07 CN CN201210278568.0A patent/CN103572962A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080000571A1 (en) * | 2006-06-30 | 2008-01-03 | City University Of Hong Kong | Concrete reinforcement |
| CN102561719A (en) * | 2011-12-29 | 2012-07-11 | 吉林建筑工程学院 | Reinforced concrete beam reinforced by bonding steel plate |
Non-Patent Citations (5)
| Title |
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| 余锦秀: ""建筑结构胶的配制与应用"", 《桥梁建设》 * |
| 刘强: ""粘结钢板加固补强技术在混凝土结构裂缝中的应用研究"", 《福建建材》 * |
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| 罗文英: ""干粉砂浆及其在广东省的应用"", 《广东建材》 * |
| 陈东巨等: ""GLC_1型建筑结构胶的研制及其性能研究"", 《甘肃科技》 * |
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Application publication date: 20140212 |