CN202090587U

CN202090587U - Strength and toughness-enhanced PVC (Polyvinyl Chloride) construction formwork

Info

Publication number: CN202090587U
Application number: CN2011200227229U
Authority: CN
Inventors: 邵昕亮; 杨勇
Original assignee: Changzhou Yaqiang Plastic Co Ltd
Current assignee: Changzhou Yaqiang Plastic Co Ltd
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2011-12-28
Anticipated expiration: 2021-01-24

Abstract

The utility model relates to the technical field of PVC (Polyvinyl Chloride) plates, in particular to a strength and toughness-enhanced PVC construction formwork. The strength and toughness-enhanced PVC construction formwork is provided with a plurality of layers of PVC laminated sheets; a mesh material is arranged in at least one PVC laminated sheet in the PVC laminated sheets; and the PVC laminated sheets are subjected to hot press and compound to form an integrated structure. The strength and toughness-enhanced PVC construction formwork disclosed by the utility model has the advantages of low production cost, favorable strength and toughness, convenience in disassembly and assembly, construction work hour saving, water and corrosion resistance, high turnover frequency and little influence on the environment; the strength and toughness-enhanced PVC construction formwork can be recovered, processed and recycled; and the technical problems that the construction cost of building and bridge construction project is high, the consumption of natural resources is great and the quality and the progress of the construction project are imperfect are solved.

Description

A kind of enhancing toughening PVC building template

Technical field

The utility model relates to PVC sheet material technical field, especially a kind of enhancing toughening PVC building template.

Background technology

In recent years, the annual newly-built approximately 2,000,000,000 square metres of buildings of China expect at the bottom of the year two thousand twenty, and national building construction area will increase 40,000,000,000 square metres newly, and it is unprecedented on the world architecture development history that its asd number and construction speed all belong to.In architecture construction and use, because the building structure of China is based on cast-in-place concrete structure.In the cast-in-place concrete structure engineering construction, the construction formwork important tool that is absolutely necessary.Form work engineering generally accounts for more than 30% of concrete structure engineering cost, accounts for 35% of the Structural Engineering amount of labour used, accounts for the duration about 55%.The construction formwork technology directly has influence on quality, progress and the cost of construction work.Adopt what material construction formwork be related to resource utilization, template cost of production and to the construction cost of building and cause influence degree to environment.

At present, the template mainly used of builing industry has steel form, wooden form, Bamboo Formwork.Steel form is mainly used in civilian height and lives outer wall template, pier stud template, bridge engineering plane and special-shaped part, its than great, once infusion of financial resources amount big, maintenance cost is high, use is inconvenient; Wooden form, Bamboo Formwork are mainly used in civilian commercial and residential building, plane bridge engineering (mould material thickening), are bonding with phenolic resins or pollopas, one, low toxicity is arranged, its two, the very thin thickness of glue-line, its three, can not bending forming, can not satisfy the requirement of curve modeling.When timber or bamboo wood immersion dilatancy, the extension at break degree of glue-line is far smaller than bamboo wood dilation, so the stratification of coming unstuck will appear in sheet material, Here it is, and the bamboo and wood template is not durable, the main cause that repeat usage is low, be generally 3-8 the application life of bamboo and wood template.

Along with fast development of national economy, the urban traffic pressure is outstanding day by day in addition, and setting up overpass bridge is one of main means of slowing down traffic pressure, and wherein the arc bridge extensively adopts in overpass bridge with its beautiful design.But the arc bridge is for the rectangle bridge, the installation of its form frame system and reinforce more complexly, and the arc bridge is installed according to traditional mould bases, the requirement that does not at all reach technical specification and geometric shape.Wherein, common steel form will bend to quite difficulty of many curved profile, and expense is higher; Commonly used wood glue plate, bamboo blanket template be more difficult to bend shaping.

Therefore, in building and bridge construction industry, it is low to press for a kind of template cost of production; Intensity and pliability are good, can carry out arc processing; Easy to loading and unloading, save the man-hour of constructing; Waterproof, anticorrosion, the number of turnover is many; Recyclable processing utilizes once more, the mould material little to ambient influnence.To improve the quality and the progress of construction project, reduce the construction cost of building and bridge construction engineering, reduce the consumption of natural resource.

The utility model content

The technical problems to be solved in the utility model is: for reducing the construction cost of building and bridge construction engineering, reduce the consumption of natural resource, improve the quality and the progress of construction project, the utility model provides a kind of enhancing toughening PVC building template, and its cost of production is low; Intensity and good toughness; Easy to loading and unloading, save the man-hour of constructing, waterproof, anticorrosion, the number of turnover is many; Recyclable processing utilizes once more, and is little to ambient influnence.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of enhancing toughening PVC building template, it has several layers PVC compressing tablet, have at least in a slice PVC compressing tablet to be provided with Web materials in described PVC compressing tablet, described PVC compressing tablet is by the hot pressing structure that is combined into one.In the PVC compressing tablet Web materials is set, Web materials and PVC material are combined into one, and Web materials plays skeleton function in the PVC material, can increase the intensity and the toughness of PVC material.

Be further to improve the intensity and the toughness of template, described enhancing toughening PVC building template also has the enhancement Layer of the interlayer of the one or more layers PVC of being arranged on compressing tablet, and described PVC compressing tablet and enhancement Layer are by the hot pressing structure that is combined into one.

Reliable for enhancement Layer is combined with the PVC section, described enhancement Layer is glass fiber mesh, gauze wire cloth, cotton gauze or vertical bamboo band layer.Glass fiber mesh, gauze wire cloth, cotton gauze and vertical bamboo band layer, the dilation of these materials after long-time the immersion is all less than the elongation at break of PVC material, therefore, with it as enhancement Layer, after hot pressing is compound, combine reliably with the PVC material, can not break away from, therefore, in the PVC compressing tablet, add above-mentioned material with the PVC material, can effectively improve its tensile property and intensity, particularly add gauze wire cloth as enhancement Layer, in the PVC material, added framework material in fact, because the flexural strength of gauze wire cloth is better, therefore can improve its flexural strength greatly, can be used for making arc formwork.

Further, for ease of making and scrim layer being combined with PVC reliably, described Web materials is glass fiber mesh, gauze wire cloth or cotton gauze.

For further reducing production costs, the primary raw material of described PVC compressing tablet is discarded PVC plastics.

Make for ease of moulding, the thickness of described PVC compressing tablet is 0.3～1.5mm.

To its requirement of strength difference, the thickness of described enhancing toughening PVC building template is 8～25mm according to the actual use occasion of sheet material.

The beneficial effects of the utility model are, enhancing toughening PVC building template of the present utility model, owing in the PVC compressing tablet, be provided with Web materials, interlayer at the PVC compressing tablet is provided with enhancement Layer, and it is compound with the PVC compressing tablet by hot pressing, the enhancement Layer structure that is combined into one, therefore enhancement Layer and PVC compressing tablet are in conjunction with reliable, Web materials in enhancement Layer wherein and the PVC compressing tablet can improve intensity and the toughness that strengthens toughening PVC building template greatly, particularly can improve winter PVC material because of low the becoming fragile property phenomenon of environment temperature, improve the flexural strength that strengthens toughening PVC building template.This enhancing toughening PVC building template is the environment-friendly and energy-efficient constructional materials, and cost of production is low; Can carry out arc processing, the alternative steel form of arc sheet material after the processing; Template is easy to loading and unloading, because lighter weight, thereby does not need large-scale hanging device during the template loading and unloading; But do not need the release agent automatic demoulding in the work progress, save the man-hour of constructing; Waterproof, anticorrosion, the number of turnover is about 30 times; Large tracts of land is launched construction simultaneously; Recyclable processing utilizes once more, and is little to ambient influnence, meets the requirement of national recycling economy to industry development fully.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the structural representation that the utility model strengthens toughening PVC building template.

Among the figure: 1.PVC compressing tablet, 2. Web materials, 3. enhancement Layer.

The specific embodiment

The specific embodiment of enhancing toughening PVC building template of the present utility model as shown in Figure 1, have 16 layers of PVC compressing tablet 1, be respectively arranged with Web materials 2 in first floor wherein, the second layer, the 3rd layer, the 14 layer, the 15 layer and the 16 layer of PVC compressing tablet 1, the Web materials that adopts is a glass fiber mesh, certainly according to the use occasion difference, also can adopt cotton gauze or gauze wire cloth, the occasion of having relatively high expectations for flexural strength, can adopt gauze wire cloth, require lower occasion for flexural strength, can select cotton gauze; Interlayer at interlayer, eleventh floor and the Floor 12 PVC compressing tablet 1 of layer 5 and layer 6 PVC compressing tablet 1 is respectively arranged with one deck enhancement Layer 3, and this enhancement Layer 3 adopts gauze wire cloths; Interlayer at the 8th layer and the 9th layer PVC compressing tablet 1 also is provided with one deck enhancement Layer 3, this enhancement Layer adopts vertical bamboo band, with described each PVC compressing tablet 1, gauze wire cloth and vertically bamboo band put into mould after stacked, with be equipped with above-mentioned after stacked PVC compressing tablet 1, gauze wire cloth and vertically bamboo band mould and put into hot press, through HTHP, thermocompression forming makes PVC compressing tablet 1, gauze wire cloth and the vertical bamboo band structure that is combined into one.Similarly, enhancement Layer 3 can be selected the performance requirement of mould material is different according to use occasion, require lower occasion for flexural strength, enhancement Layer 3 can be selected glass fiber mesh or cotton gauze, the quantity that the quantity, enhancement Layer 3 of the PVC compressing tablet 1 of band Web materials 2 is provided with and adopt which kind of material is determined according to the use occasion of template.Generally speaking, reaching if not the winter in cold is not to be used to make arc formwork, and then the number of plies of Web materials 2 and enhancement Layer 3 settings can be lacked, even enhancement Layer 3 can be set, and Web materials 2 also can be selected cotton gauze or glass fiber mesh.If be used to make arc formwork, and to flexural strength and the higher occasion of toughness reguirements, then which floor Web materials 2 and enhancement Layer 3 should be provided with more, and enhancement Layer 3 materials should be selected gauze wire cloth and vertical bamboo band layer.

When preparing above-mentioned enhancing toughening PVC building template, adopt earlier conventional PVC calendering technology to make the PVC compressing tablet 1 of band Web materials 2 respectively and not with the PVC compressing tablet 1 of Web materials 2, then that each PVC compressing tablet 1 is stacked, in PVC compressing tablet 1, add enhancement Layer 3, when enhancement Layer 3 adopts vertical bamboo band layer, for ease of making, can be earlier bamboo band be weaved into the interlayer that joins PVC compressing tablet 1 behind the bamboo curtain splint with glass wire or cotton thread etc., the stacked PVC compressing tablet 1 that will add again behind the enhancement Layer 3 is put into mould, to the mould of above-mentioned PVC compressing tablet 1 after stacked be housed and put into hot press, through HTHP, thermocompression forming, enhancement Layer 3 and PVC compressing tablet 1 are combined into one, must strengthen toughening PVC building template.After this strengthens toughening PVC building template turnover use repeatedly, if any damage, can be with after its removing surface totally, the gauze wire cloth of employing is arranged or vertically during the bamboo band layer as Web materials 2 and enhancement Layer 3, then isolate gauze wire cloth and bamboo band after the heating, rest materials after separating is pulverized, and the material after the pulverizing can be used as the primary raw material of PVC compressing tablet 1; All do not adopt gauze wire cloth or vertical bamboo band layer as Web materials 2 and enhancement Layer 3, then can directly the enhancing toughening PVC building template of cleaning out be pulverized, the material after the pulverizing can be used as the primary raw material of PVC compressing tablet 1.

Should be appreciated that specific embodiment described above only is used to explain the utility model, is not to restriction of the present utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.

Claims

1. one kind strengthens toughening PVC building template, has several layers PVC compressing tablet (1), it is characterized in that: have at least to be provided with Web materials (2) in a slice PVC compressing tablet (1) in described PVC compressing tablet (1), described PVC compressing tablet (1) is by the hot pressing structure that is combined into one.

2. a kind of enhancing toughening PVC building template according to claim 1, it is characterized in that: described enhancing toughening PVC building template also has the enhancement Layer (3) of the interlayer of the one or more layers PVC of being arranged on compressing tablet (1), and described PVC compressing tablet (1) and enhancement Layer (3) are by the hot pressing structure that is combined into one.

3. a kind of enhancing toughening PVC building template according to claim 2 is characterized in that: described enhancement Layer (3) is glass fiber mesh, gauze wire cloth, cotton gauze or vertical bamboo band layer.

4. a kind of enhancing toughening PVC building template according to claim 1 is characterized in that: described Web materials (2) is glass fiber mesh, gauze wire cloth or cotton gauze.

5. a kind of enhancing toughening PVC building template according to claim 1 is characterized in that: the primary raw material of described PVC compressing tablet (1) is discarded PVC plastics.

6. a kind of enhancing toughening PVC building template according to claim 1 is characterized in that: the thickness of described PVC compressing tablet (1) is 0.3～1.5mm.

7. a kind of enhancing toughening PVC building template according to claim 1 is characterized in that: the thickness of described enhancing toughening PVC building template is 8～25mm.