CN103266760A - Permanent beam template made of fiber woven mesh reinforced cement based composite material and method for manufacturing permanent beam template - Google Patents
Permanent beam template made of fiber woven mesh reinforced cement based composite material and method for manufacturing permanent beam template Download PDFInfo
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- CN103266760A CN103266760A CN2013101781916A CN201310178191A CN103266760A CN 103266760 A CN103266760 A CN 103266760A CN 2013101781916 A CN2013101781916 A CN 2013101781916A CN 201310178191 A CN201310178191 A CN 201310178191A CN 103266760 A CN103266760 A CN 103266760A
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Abstract
The invention discloses a permanent beam template made of a fiber woven mesh reinforced cement based composite material and a method for manufacturing the permanent beam template. Sections of the template are concave, and grooves are formed inside the sections. The permanent beam templates serve as beam templates in the beam pouring stage of structures such as industrial and civil building structures, hydraulic structures and harbor structures and also serve as protecting plates and outer protecting layers for the structures after pouring forming to bear partial loads. The template is made of the non-metallic fiber woven mesh reinforced cement based composite material, a steel wire mesh reinforced cement based composite material and the like, and the permanent beam template has the advantages of being simple to manufacture, convenient to use, high in durability and good in cracking control performance.
Description
Technical field
The invention belongs to a kind of construction formwork; a kind of high-durability permanent formwork that is mainly used in industry and civilian construction structure, hydro-structure and the isostructural beam of port sea structure specifically; use as template in the stage of building; build double protected apron and the external protection of doing structure after the moulding, bear the structural load of a part simultaneously.The invention still further relates to the preparation method of template.
Background technology
At present, in the domestic construction field, industry is used templates such as wooden form, steel form usually with civilian construction structure, hydro-structure and the port isostructural beam of sea structure, unfavorable factor such as have that consumption is big, dismounting is inconvenient, turnover expense height, utilization rate are low.Endurance issues is one of subject matter of facing of reinforced concrete structure all the time.The ordinary concrete surface is exposed naturally in the structure under the conventional situation, and durability is lower, and the house of China nearly 50% enters the ageing step at present, and namely 23.4 hundred million square metres building faces endurance issues.In addition, be the key character that hydro-structure, port sea structure etc. is different from other types building structure with cracking resistance as controlled condition design, the operate as normal that ordinary concrete problem easy to crack not only can influence hydro-structure etc. also can influence its durability and application life, serious even safe operation that can influence structure.More than some be industry all the time with construction such as civilian construction structure, hydro-structure and sea, port structure and use in more scabrous problem.
Summary of the invention
The present invention's technical problem at first to be solved provides the permanent beam forms of a kind of fiber knitted net refinforced cement based composites, to improve the unfavorable factor that conventional template is brought, improve structure durability simultaneously, reduce the application life of structure later maintenance cost and final extending structure, for this reason, the present invention is by the following technical solutions:
The permanent beam forms of a kind of fiber knitted net refinforced cement based composites, it forms beam forms by panel, the cross section of described panel is concave character type, inner surface is distributed with groove, and described panel selects for use following different materials to make: non metal fiber woven net refinforced cement based composites, braided steel wire net refinforced cement based composites.
The cement-base composite material that described non metal fiber woven net strengthens is made up of non-metallic fibers net and cement based matrix, described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or assorted fibre mesh grid have the two or more fibers that are selected from above fiber in the assorted fibre; The mortar constituent of cement based matrix is except mixing water, also comprise: one or more in portland cement, high alumina cement, the sulphate aluminium cement, active mineral fine mineral admixture, water reducing agent, sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
The material of pozzolanic activity comprises one or more in flyash, silica flour, the granulated blast-furnace slag.
In addition, the mortar preferred mass proportioning of the cement based matrix of described cement-base composite material is: cement: water: flyash: silicon ash: water reducing agent: coarse sand: fine sand=1:(0.45 ~ 0.55): (0.3 ~ 0.36): (0.05 ~ 0.1): (0.006 ~ 0.01): (0.9 ~ 1.0): (1.8 ~ 2.0), and the particle size range of its medium coarse sand is at 0.6 ~ 1.2mm; The fine sand particle size range is 0 ~ 0.6mm.
Non metal fiber woven net is smeared epoxy resin by pre-stretch-draw and on the surface except bending part.
Another technical problem to be solved of the present invention provides the preparation method of the permanent beam forms of a kind of above-mentioned fiber knitted net refinforced cement based composites.For this reason, the present invention is by the following technical solutions:
Be spliced into template and build device the anchor clamps of U-shaped mesh grid and W pattern plate are installed, die cavity in the W pattern plate is made up of both wings die cavity and top die cavity, two side templates and the bottom plate moulding of the corresponding concave shape panel of difference, U-shaped mesh grid is inserted in both wings die cavity and the top die cavity, the mortar of cement based matrix is added the template apparatus for pouring and vibrates from the upper opening of W pattern plate; The unnecessary mesh grid in both sides is pruned in form removal after the template moulding, becomes the permanent beam forms of fiber knitted net refinforced cement based composites after the maintenance.
U-shaped fiber knitted net manufacturing process is as follows: the non metal fiber woven net of required size is carried out two directions tension, and use anchor clamps to fix the mesh grid after the stretch-draw; Smear epoxy resin on the mesh grid surface that is fixed, and need crooked zone not smear epoxy resin when reserve making U-shaped fiber knitted net; After treating epoxy resin cure, the zone of three sclerosis of mesh grid formation is bent into mesh grid U-shaped along above-mentioned zone of not smearing epoxy resin and the use anchor clamps are fixed the making of namely finishing U-shaped mesh grid at its two ends.
When mesh grid is the braided steel wire net, need not to carry out stretch-draw and epoxy resin is smeared, thereby directly be bent into U-shaped and use anchor clamps to fix the making of finishing U-shaped braided steel wire net at its two ends.
Described W pattern intralamellar part has stupefied of projection, and its size is consistent with the groove size in the described permanent beam forms; The anchor clamps of described U-shaped mesh grid are made up of external member and internals and are cooperated and clamp U-shaped mesh grid.
Described template is built device carries out beam forms under horizontal positioned the making of building.
The size of the permanent beam forms of described fiber knitted net refinforced cement based composites can satisfy the needs of difformity size, height and span size according to actual needs by the geomery of adjusting panel, preparation method is simple, and is easy to use.
Owing to adopt technical scheme of the present invention; the present invention used as template in the stage of building; after building moulding, need not remove, and double protected apron and the external protection of doing structure; become permanent formwork; itself cost is low and also eliminated demolition cost and turnover expense, reduces engineering cost, can improve and solve problems such as dismounting in the template constructions such as industry and the extra large structure in civilian construction structure, hydro-structure and port and utilization rate; reduce construction intensity, can shorten the engineering time greatly.Meanwhile, because this template is made by non metal fiber woven net refinforced cement based composites or gauze wire cloth refinforced cement based composites, have characteristics such as high stretching ductility and Crack Control ability, damage tolerance height, energy absorption capability be strong, can effectively reduce harmful crack of body structure surface generation and suppress the crack development, its chloride-penetration resistance and anti-water permeation performance are much better than ordinary concrete, can significantly improve durability and the application life of concrete structure.Simultaneously, adopt the structure of panel of the present invention, have and make simply, assemble easy to usely, the durability height is controlled the characteristics of crack developing.Template of the present invention can also be born the part-structure load and reduce the inner amount of reinforcement of beam, and improves the shear strength of beam.
Description of drawings
Below be the marking explanation among the accompanying drawing: the 1st, permanent beam forms, the 11st, the groove in the beam forms, the 12nd, two side templates of concave shape panel, the 13rd, the bottom template of concave shape panel; The 2nd, the fiber knitted net in the template; The 3rd, the fixing anchor clamps of stretch-draw fiber knitted net; The 4th, the anchor clamps of the U-shaped mesh grid of making, the 41st, the external member of anchor clamps 4, the 42nd, the internals of anchor clamps 4; The 5th, W pattern plate, on the 51st, the W pattern plate protruding stupefied, the both wings die cavity in the 52nd, the W pattern plate, the top die cavity in the 53rd, the W pattern plate; The 6th, the cement-base composite material of building.
Fig. 1 (a) is beam forms structural representation of the present invention.
Fig. 1 (b) is the vertical view of beam forms of the present invention.
Fig. 1 (c) is the lateral view of beam forms of the present invention.
Fig. 1 (d) is the A-A sectional view of Fig. 1 (b).
Fig. 2 (a) be after the mesh grid stretch-draw of the present invention by anchor clamps the schematic diagram fixedly the time.
Fig. 2 (b) be after the mesh grid stretch-draw of the present invention by anchor clamps the lateral view fixedly the time.
Fig. 2 (c) be after the mesh grid stretch-draw of the present invention by anchor clamps the vertical view fixedly the time.
Fig. 3 (a) is the schematic diagram after U-shaped mesh grid of the present invention is produced.
Fig. 3 (b) is the elevation after U-shaped mesh grid of the present invention is produced.
Fig. 3 (c) is the vertical view after U-shaped mesh grid of the present invention is produced.
Fig. 3 (d) is the lateral view after U-shaped mesh grid of the present invention is produced.
Fig. 4 (a) is the structural representation of W pattern plate of the present invention.
Fig. 4 (b) is the vertical view of W pattern plate of the present invention.
Fig. 4 (c) is the lateral view of W pattern plate of the present invention.
Fig. 4 (d) is the B-B sectional view of Fig. 4 (b).
Fig. 4 (e) is the C-C sectional view of Fig. 4 (b).
Fig. 5 (a) is that template of the present invention is built schematic representation of apparatus.
Fig. 5 (b) is the elevation that template of the present invention is built device.
Fig. 5 (c) is the vertical view that template of the present invention is built device.
Fig. 5 (d) is the lateral view that template of the present invention is built device.
Fig. 5 (e) is the D-D sectional view of Fig. 5 (b).
Fig. 5 (f) is the E-E sectional view of Fig. 5 (c).
Fig. 5 (g) is the F-F sectional view of Fig. 5 (c).
Fig. 6 is the manufacturing process schematic diagram of U-shaped mesh grid.
Fig. 7 is permanent beam forms manufacturing process schematic diagram.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing and the permanent beam forms of a kind of fiber knitted net refinforced cement based composites and preparation method thereof the specific embodiment, and this embodiment is to explanation of the present invention, rather than the present invention is made any restriction.
But the permanent beam forms of a kind of mutual buckle type assembly unit anti-cracking and seepage control of present embodiment as Fig. 1 (a) (b) (c) (d) shown in, permanent beam forms is formed beam forms by panel 1, the cross section of described panel is concave character type, inner surface is distributed with groove 11.
The cement-base composite material that non metal fiber woven net strengthens is made up of non-metallic fibers net and cement based matrix, described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or assorted fibre mesh grid have the two or more fibers that are selected from above fiber in the assorted fibre; The mortar constituent of cement based matrix is except mixing water, also comprise: one or more in portland cement, high alumina cement, the sulphate aluminium cement, active mineral fine mineral admixture, water reducing agent, sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
The material of pozzolanic activity comprises one or more in flyash, silica flour, the granulated blast-furnace slag.
In addition, the preferred mass proportioning of the mortar of described cement-base composite material cement based matrix is: the ratio of the quality of each component is cement: water: flyash: silicon ash: water reducing agent: coarse sand: fine sand=1:(0.45 ~ 0.55): (0.3 ~ 0.36): (0.05 ~ 0.1): (0.006 ~ 0.01): (0.9 ~ 1.0): (1.8 ~ 2.0).The particle size range of its medium coarse sand is at 0.6 ~ 1.2mm; The fine sand particle size range is 0 ~ 0.6mm.
At first carry out the making of U-shaped mesh grid, as shown in Figure 6.The non metal fiber woven net of required size is carried out two directions tension, described two-way be orthogonal both direction, and use anchor clamps 3 fixing mesh grid after the stretch-draw, see Fig. 2 (a) (b) (c); Smear epoxy resin on fixing mesh grid surface, and reserve and need crooked zone when making U-shaped fiber knitted net (width is 1 ~ 3cm) not smear epoxy resin; After treating epoxy resin cure, mesh grid forms the zone of three sclerosis, be bent into mesh grid U-shaped along above-mentioned zone of not smearing epoxy resin and use anchor clamps 4 to fix the making of namely finishing U-shaped fiber knitted net at its two ends, (b) (c) (d) to see Fig. 3 (a).More than the anchor clamps 4 of used U-shaped fiber knitted net form and cooperate by external member 41 and internals 42 and clamp U-shaped fiber knitted net.
U-shaped fibroreticulate anchor clamps and W pattern plate will be installed to be spliced into template and to build device, die cavity in the W pattern plate 5 is made up of both wings die cavity 52 and top die cavity 53, two side templates 12 and 13 moulding of bottom template of corresponding concave shape panel respectively, there is stupefied 51 of projection W pattern plate 5 inside, and its size is consistent with groove 11 sizes in the permanent beam forms of concave shape; Anchor clamps 4 are with the closed at both ends of the die cavity in the W pattern plate 5.
Permanent beam forms manufacturing process as shown in Figure 7, U-shaped fleece is inserted in both wings die cavity and the top die cavity, the anchor clamps 4 of U-shaped fiber knitted net and W pattern plate 5(are installed see (b) (c) (d) (e) of Fig. 4 (a)) be spliced into template and build device (see Fig. 5 (a) (b) (c) (d) (e) (f)), the described template of horizontal positioned is built device, the cement based matrix mortar of cement-base composite material 6 is added the template apparatus for pouring and vibrates from the upper opening of W pattern plate; Both sides excess fiber mesh grid is pruned in form removal after the template moulding, and maintenance becomes the permanent beam forms of fiber knitted net refinforced cement based composites after 28 days, can normally use.
During construction, can carry out size, quantity design and the assembling of panel according to the needs of real size, by adjusting the needs that panel 1 and size dimension can satisfy different cross section size and span.
Preparation method provided by the present invention has makes simply, easy to use, improves the characteristics of structure durability and control crack developing, can satisfy the application demand of a large amount of engineerings.
Claims (10)
1. the permanent beam forms of fiber knitted net refinforced cement based composites, it is characterized in that: it forms beam forms by panel (1), the cross section of described panel is concave character type, inner surface is distributed with groove, and described panel selects for use following different materials to make: non metal fiber woven net refinforced cement based composites, braided steel wire net refinforced cement based composites.
2. the permanent beam forms of fiber knitted net refinforced cement based composites according to claim 1, it is characterized in that: the cement-base composite material that described non metal fiber woven net strengthens is made up of non-metallic fibers net and cement based matrix, described non metal fiber woven net comprises: Carbon Fibre Textile, aramid fiber mesh grid, alkali-resistant glass fibre mesh grid, vinal mesh grid, polyethylene fibre mesh grid or assorted fibre mesh grid have the two or more fibers that are selected from above fiber in the assorted fibre; The mortar constituent of cement based matrix is except mixing water, also comprise: one or more in portland cement, high alumina cement, the sulphate aluminium cement, active mineral fine mineral admixture, water reducing agent, sand, described active mineral fine mineral admixture is the material with pozzolanic activity.
3. the permanent beam forms of fiber knitted net refinforced cement based composites according to claim 2, it is characterized in that: the material of pozzolanic activity comprises one or more in flyash, silica flour, the granulated blast-furnace slag.
4. the permanent beam forms of fiber knitted net refinforced cement based composites according to claim 1, it is characterized in that: the mortar preferred mass proportioning of the cement based matrix of described cement-base composite material is: cement: water: flyash: silicon ash: water reducing agent: coarse sand: fine sand=1:(0.45 ~ 0.55): (0.3 ~ 0.36): (0.05 ~ 0.1): (0.006 ~ 0.01): (0.9 ~ 1.0): (1.8 ~ 2.0), and the particle size range of its medium coarse sand is at 0.6 ~ 1.2mm; The fine sand particle size range is 0 ~ 0.6mm.
5. the permanent beam forms of fiber knitted net refinforced cement based composites according to claim 1 is characterized in that: non metal fiber woven net is smeared epoxy resin by pre-stretch-draw and on the surface except bending part.
6. the preparation method of the permanent beam forms of fiber knitted net refinforced cement based composites as claimed in claim 1, it is characterized in that: the anchor clamps (4) of U-shaped mesh grid and W pattern plate (5) will be installed be spliced into template and build device, die cavity in the W pattern plate (5) is made up of both wings die cavity and top die cavity, two side templates and the bottom plate moulding of the corresponding concave shape panel of difference, U-shaped mesh grid is inserted in both wings die cavity and the top die cavity, the mortar of cement based matrix is added the template apparatus for pouring and vibrates from the upper opening of W pattern plate (5); The unnecessary mesh grid in both sides is pruned in form removal after the template moulding, becomes the permanent beam forms of fiber knitted net refinforced cement based composites after the maintenance.
7. preparation method according to claim 6, it is characterized in that: U-shaped fiber knitted net manufacturing process is as follows: the non metal fiber woven net of required size is carried out two directions tension, and use anchor clamps (3) fixing mesh grid after the stretch-draw; Smear epoxy resin on the mesh grid surface that is fixed, and need crooked zone not smear epoxy resin when reserve making U-shaped fiber knitted net; After treating epoxy resin cure, the zone of three sclerosis of mesh grid formation is bent into mesh grid U-shaped along above-mentioned zone of not smearing epoxy resin and use anchor clamps (4) are fixed the making of namely finishing U-shaped mesh grid at its two ends.
8. preparation method according to claim 7, it is characterized in that: when mesh grid is the braided steel wire net, need not to carry out stretch-draw and epoxy resin is smeared, directly be bent into U-shaped and use anchor clamps (4) thus fix the making of finishing U-shaped braided steel wire net at its two ends.
9. preparation method according to claim 6 is characterized in that: there is stupefied of projection described W pattern plate (5) inside, and the interior groove size of its size and described permanent beam forms is consistent; The anchor clamps of described U-shaped mesh grid (4) are formed and are cooperated by external member (41) and internals (42) and clamp U-shaped mesh grid.
10. preparation method according to claim 6, it is characterized in that: described template is built device carries out beam forms under horizontal positioned the making of building.
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Cited By (13)
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| CN103496865A (en) * | 2013-09-16 | 2014-01-08 | 北京工业大学 | Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure |
| CN105019599A (en) * | 2015-08-04 | 2015-11-04 | 万保金 | Disassembly-free precast concrete beam insulation template |
| CN105350717A (en) * | 2015-11-27 | 2016-02-24 | 浙江大学 | Reinforcement pin joint permanency beam formwork, concrete structural member and manufacturing method |
| CN105369981A (en) * | 2015-11-27 | 2016-03-02 | 浙江大学 | Reinforcement-type permanent beam form with embedded buckle connection, concrete structural element and manufacture method thereof |
| CN106703288A (en) * | 2016-11-18 | 2017-05-24 | 湖南大学 | Manufacturing method of carbon fiber mesh composite board and concrete continuous beam |
| CN106760190A (en) * | 2016-11-18 | 2017-05-31 | 湖南大学 | Concrete simply supported beam and preparation method based on carbon fiber mesh composite board |
| CN106968378A (en) * | 2017-01-24 | 2017-07-21 | 浙江科技学院 | A kind of arrangement of reinforcement formula fiber knitted net concrete floor and preparation method thereof and installation method |
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| CN112299789A (en) * | 2020-11-06 | 2021-02-02 | 中国铁建股份有限公司 | Steel fiber common template frame and preparation method thereof |
| CN112321233A (en) * | 2020-11-06 | 2021-02-05 | 中国铁建股份有限公司 | Ordinary support-free permanent template frame and preparation method thereof |
| CN114851361A (en) * | 2022-05-27 | 2022-08-05 | 哈尔滨工业大学（深圳） | U-shaped fiber reinforced composite beam permanent template prefabricated mold and preparation method thereof |
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| CN103496865A (en) * | 2013-09-16 | 2014-01-08 | 北京工业大学 | Hybrid FRP (Fiber Reinforced Plastic) grid enhancedreinforced ECC (Engineered Cementitious Composite) and application thereof tostructure for reinforcing concrete structure |
| CN105019599A (en) * | 2015-08-04 | 2015-11-04 | 万保金 | Disassembly-free precast concrete beam insulation template |
| CN105350717A (en) * | 2015-11-27 | 2016-02-24 | 浙江大学 | Reinforcement pin joint permanency beam formwork, concrete structural member and manufacturing method |
| CN105369981A (en) * | 2015-11-27 | 2016-03-02 | 浙江大学 | Reinforcement-type permanent beam form with embedded buckle connection, concrete structural element and manufacture method thereof |
| CN105369981B (en) * | 2015-11-27 | 2018-03-23 | 浙江大学 | A kind of arrangement of reinforcement formula buckle connection permanent beam template, concrete structure member and manufacture method |
| CN106703288B (en) * | 2016-11-18 | 2020-03-17 | 湖南大学 | Method for manufacturing carbon fiber grid composite plate concrete continuous beam |
| CN106703288A (en) * | 2016-11-18 | 2017-05-24 | 湖南大学 | Manufacturing method of carbon fiber mesh composite board and concrete continuous beam |
| CN106760190A (en) * | 2016-11-18 | 2017-05-31 | 湖南大学 | Concrete simply supported beam and preparation method based on carbon fiber mesh composite board |
| CN106968378A (en) * | 2017-01-24 | 2017-07-21 | 浙江科技学院 | A kind of arrangement of reinforcement formula fiber knitted net concrete floor and preparation method thereof and installation method |
| CN107916782A (en) * | 2017-12-29 | 2018-04-17 | 长沙紫宸科技开发有限公司 | A kind of cast-in-situ steel reinforced concrete beam column protectiveness rib template |
| CN109555267A (en) * | 2018-12-03 | 2019-04-02 | 广东工业大学 | A kind of complex coagulation earth pillar and preparation method thereof |
| CN111423169A (en) * | 2020-04-10 | 2020-07-17 | 哈尔滨工业大学 | High-toughness low-cost environment-friendly composite beam and construction method thereof |
| CN112299789A (en) * | 2020-11-06 | 2021-02-02 | 中国铁建股份有限公司 | Steel fiber common template frame and preparation method thereof |
| CN112321233A (en) * | 2020-11-06 | 2021-02-05 | 中国铁建股份有限公司 | Ordinary support-free permanent template frame and preparation method thereof |
| CN114851361A (en) * | 2022-05-27 | 2022-08-05 | 哈尔滨工业大学（深圳） | U-shaped fiber reinforced composite beam permanent template prefabricated mold and preparation method thereof |
| CN114851361B (en) * | 2022-05-27 | 2023-08-15 | 哈尔滨工业大学（深圳） | U-shaped fiber reinforced composite material beam permanent formwork prefabricating mold and preparation method thereof |
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