CN104674994A - Combined mandrel for cast-in-place hollow floor and production method of combined mandrel - Google Patents
Combined mandrel for cast-in-place hollow floor and production method of combined mandrel Download PDFInfo
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- CN104674994A CN104674994A CN201510008751.2A CN201510008751A CN104674994A CN 104674994 A CN104674994 A CN 104674994A CN 201510008751 A CN201510008751 A CN 201510008751A CN 104674994 A CN104674994 A CN 104674994A
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- cast
- composite core
- building roof
- hollow building
- situ hollow
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Abstract
The invention discloses a combined mandrel for a cast-in-place hollow floor and a production method of the combined mandrel. The combined mandrel is formed by assembly of two semicircular tubular mandrel bodies and two end covers. Each mandrel body with a semicircular cross section is made of raw materials including, by weight, 300-500 parts of cement., 30-60 parts of asbestos, 5-10 parts of fiberglass and 70-90 parts of mountain flour. The combined mandrel subjected to industrial production is simple in structure, lightweight and convenient to mount, demount and transport; since multiple combined mandrels can be stacked together, occupation of limited construction area can be reduced; the combined mandrel is made of inorganic materials, thereby having low production cost and good fire prevention performance.
Description
Technical field
The present invention relates to a kind of composite core formwork for cast-in-situ hollow building roof and preparation method thereof.
Background technology
The existing core for cast-in-situ hollow building roof mostly adopts and makes by hand, and it has the following disadvantages:
One, wall thickness is thin uneven, and cracky when transport and construction fluid concrete, concrete directly penetrates in damaged thin-wall box body, can not play hollow effect, cause former project organization load to increase, and increases workmanship potential safety hazard.
Two, do not realize suitability for industrialized production, still rest on manual production, the requirement that can not guarantee supply, affects construction speed.Stack and take a large amount of construction areas, make troubles to construction.
Three, intensity difference, breakage rate is high, from great, transport and installation inconvenience.
In addition, core or the obturator fireproof performance of the manufacture of employing organic material are poor, and discharge toxic gas during burning, and building site use can bring serious potential safety hazard.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of and is convenient to composite core formwork for cast-in-situ hollow building roof of transporting and installing and preparation method thereof.The composite core formwork that the method is obtained, wall thickness is evenly thin, not cracky, can realize suitability for industrialized production.
Further, technical problem to be solved by this invention is, composite core formwork for cast-in-situ hollow building roof providing a kind of fireproof performance good and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is:
The composite core formwork for cast-in-situ hollow building roof of the present invention, is assembled by the core of two semicircular tubulose and two end cap.
Further, come in and go out end cap respectively in the two ends of the core of described half-round tubular, described end cap is provided with the groove matched with half-round tubular.
Further, the core of described half-round tubular is made up of the raw material of following weight portion: cement 300-500 part (preferred 350-450 part), asbestos 30-60 part (preferred 40-50 part), glass fiber 5-10 part (preferred 7-8 part), stone flour 70-90 part (preferred 75-85 part).
Further, described end cap is suppressed by engineering plastics and is formed.Its effect has been to the shutoff at composite core formwork two ends and fixing.
The preparation method of the composite core formwork for cast-in-situ hollow building roof of the present invention, comprises the following steps:
(1) each raw material is taken by following weight: cement 300-500 part (preferred 350-450 part), asbestos 30-60 part (preferred 40-50 part), glass fiber 5-10 part (preferred 7-8 part), stone flour 70-90 part (preferred 75-85 part);
(2) taken raw material is placed in mixer, then adds and be equivalent to each raw material weight summation 3-5 water stirring pulping doubly, and deliver to Chao Qu workshop section by pipeline;
(3) use gauze isolation method that the moisture of Behavior of Hardened Cement Paste cotton pulp is discharged, surplus material is pressed into cement asbestos blank strip by rubber rollers, and cement asbestos blank strip linear uniform motion is by vacuum sieve plate removing excessive moisture;
(4) the Behavior of Hardened Cement Paste cotton strip base after dewatering is under the pressure of forming tube and rubber rollers, and made-up belt is wrapped on billet machine uniformly, reaches required thickness and cuts off by cutting base hobboing cutter;
(5) roll-forming; Deliver to format roll by the conveyer belt connecing base machine and Behavior of Hardened Cement Paste cotton strip base is tentatively pressed into circle, roller pressing forming machine is got rid of the moist part inside shaping Behavior of Hardened Cement Paste cotton strip base and is rolled into pipe, places and shapingly reaches the indeformable rear incision of some strength; Or Behavior of Hardened Cement Paste cotton strip base is directly rolled into half-round tubular;
Or vacuum forming; Once half-round tubular is become by extracting vacuum mould sucker;
(6) made-up belt after shaping cuts away unnecessary burr by bead cutter;
(7) maintenance, entrucking, building site is assembled, and the core of two semicircular tubulose and two end cap are assembled into composite core formwork.
The composite core formwork structure of the present invention is simple, and quality is light, and wall thickness is evenly thin, not cracky, handling convenient transportation; Can multi-layer stacking, can reduce and take limited construction area; Adopt inorganic material, low cost of manufacture, fireproof performance is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described.
With reference to Fig. 1, the composite core formwork for cast-in-situ hollow building roof of the present embodiment, is assembled by the core 1 of two semicircular tubulose and two end cap 2.Come in and go out end cap 2 respectively in the two ends of the core 1 of described half-round tubular, described end cap 2 is provided with the groove matched with half-round tubular.
The core 1 of described half-round tubular is made up of the raw material of following weight portion: cement 400 parts, 50 parts, asbestos, glass fiber 7 parts, stone flour 80 parts.
Described end cap 2 is suppressed by engineering plastics and is formed.Its effect has been to the shutoff at composite core formwork two ends and fixing.
The preparation method of the composite core formwork for cast-in-situ hollow building roof of the present embodiment, comprises the following steps:
(1) each raw material is taken by following weight: cement 400 parts, 50 parts, asbestos, glass fiber 7 parts, stone flour 80 parts;
(2) taken raw material is placed in mixer, then adds the water stirring pulping being equivalent to each raw material weight summation 4 times, and deliver to Chao Qu workshop section by pipeline;
(3) use gauze isolation method that the moisture of Behavior of Hardened Cement Paste cotton pulp is discharged, surplus material is pressed into cement asbestos blank strip by rubber rollers, and cement asbestos blank strip linear uniform motion is by vacuum sieve plate removing excessive moisture;
(4) the Behavior of Hardened Cement Paste cotton strip base after dewatering is under the pressure of forming tube and rubber rollers, and made-up belt is wrapped on billet machine uniformly, and (for the core within diameter 150mm, thickness is 5mm to reach required thickness; The core of diameter 200 ~ 300mm, thickness is 6mm) cut off by cutting base hobboing cutter;
(5) roll-forming; Deliver to format roll by the conveyer belt connecing base machine and Behavior of Hardened Cement Paste cotton strip base is tentatively pressed into circle, roller pressing forming machine is got rid of the moist part inside shaping Behavior of Hardened Cement Paste cotton strip base and is rolled into pipe, places and shapingly reaches the indeformable rear incision of some strength;
(6) made-up belt after shaping cuts away unnecessary burr by bead cutter;
(7) maintenance, entrucking, building site is assembled, and the core of two semicircular tubulose and two end cap are assembled into composite core formwork.
In the present embodiment step (5), Behavior of Hardened Cement Paste cotton strip base also directly can be rolled into half-round tubular or once become half-round tubular by extracting vacuum mould sucker.
The composite core formwork apparent density of the present invention reaches the standard-required of country " cast-in-situ hollow building roof tecnical regulations " JGJ/T268-2012; Quality is light, closes national standard " cast-in-place concrete hollow structure pore-creating core " and meets standard-required JG/T352-2012; Fireproof performance is good, A level fire proofing material.
Claims (9)
1. for a composite core formwork for cast-in-situ hollow building roof, it is characterized in that: assembled by the core of two semicircular tubulose and two end cap.
2. the composite core formwork for cast-in-situ hollow building roof according to claim 1, is characterized in that: come in and go out end cap respectively in the two ends of the core of described half-round tubular, described end cap is provided with the groove matched with half-round tubular.
3. the composite core formwork for cast-in-situ hollow building roof according to claim 1 and 2, is characterized in that: the core of described half-round tubular is made up of the raw material of following weight portion: cement 300-500 part, asbestos 30-60 part, glass fiber 5-10 part, stone flour 70-90 part.
4. the composite core formwork for cast-in-situ hollow building roof according to claim 3, is characterized in that: described cement is 350-450 part.
5. the composite core formwork for cast-in-situ hollow building roof according to claim 3, is characterized in that: described asbestos are 40-50 part.
6. the composite core formwork for cast-in-situ hollow building roof according to claim 3, is characterized in that: described glass fiber is 7-8 part.
7. the composite core formwork for cast-in-situ hollow building roof according to claim 3, is characterized in that: described stone flour is 75-85 part.
8. the composite core formwork for cast-in-situ hollow building roof according to claim 1 and 2, is characterized in that: described end cap is suppressed by engineering plastics and formed.
9. for a preparation method for the composite core formwork of cast-in-situ hollow building roof, it is characterized in that, comprise the following steps:
(1) each raw material is taken by following weight: cement 300-500 part, asbestos 30-60 part, glass fiber 5-10 part, stone flour 70-90 part;
(2) taken raw material is placed in mixer, then adds and be equivalent to each raw material weight summation 3-5 water stirring pulping doubly, and deliver to Chao Qu workshop section by pipeline;
(3) use gauze isolation method that the moisture of Behavior of Hardened Cement Paste cotton pulp is discharged, surplus material is pressed into cement asbestos blank strip by rubber rollers, and cement asbestos blank strip linear uniform motion is by vacuum sieve plate removing excessive moisture;
(4) the Behavior of Hardened Cement Paste cotton strip base after dewatering is under the pressure of forming tube and rubber rollers, and made-up belt is wrapped on billet machine uniformly, reaches required thickness and cuts off by cutting base hobboing cutter;
(5) roll-forming; Deliver to format roll by the conveyer belt connecing base machine and Behavior of Hardened Cement Paste cotton strip base is tentatively pressed into circle, roller pressing forming machine is got rid of the moist part inside shaping Behavior of Hardened Cement Paste cotton strip base and is rolled into pipe, places and shapingly reaches the indeformable rear incision of some strength; Or Behavior of Hardened Cement Paste cotton strip base is directly rolled into half-round tubular;
Or vacuum forming; Once half-round tubular is become by extracting vacuum mould sucker;
(6) made-up belt after shaping cuts away unnecessary burr by bead cutter;
(7) maintenance, entrucking, building site is assembled, and the core of two semicircular tubulose and two end cap are assembled into composite core formwork, and in-site installation is constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008751.2A CN104674994A (en) | 2015-01-09 | 2015-01-09 | Combined mandrel for cast-in-place hollow floor and production method of combined mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008751.2A CN104674994A (en) | 2015-01-09 | 2015-01-09 | Combined mandrel for cast-in-place hollow floor and production method of combined mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104674994A true CN104674994A (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510008751.2A Pending CN104674994A (en) | 2015-01-09 | 2015-01-09 | Combined mandrel for cast-in-place hollow floor and production method of combined mandrel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123515A (en) * | 2020-01-13 | 2021-07-16 | 中国一冶集团有限公司 | Sheet-shaped folding combined type flat slab core mold and mounting method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB481772A (en) * | 1936-12-21 | 1938-03-17 | Evelyn Hurden | Improvements in or relating to the construction of floors and roofs |
| CN1857891A (en) * | 2006-05-16 | 2006-11-08 | 吴桥天马纤维水泥制品有限公司 | Chimney of composite material and its making process |
| CN101033632A (en) * | 2006-03-08 | 2007-09-12 | 邱则有 | Cavity component for concrete filling |
| US20120104281A1 (en) * | 2009-05-05 | 2012-05-03 | Lumito Ab | System, method, and luminescent marker for improved diffuse luminescent imaging or tomography in scattering media |
| CN203284929U (en) * | 2013-05-31 | 2013-11-13 | 湖南紫兴汇建筑材料有限公司 | Quasi-elliptic section internal mold for cast-in-place concrete hollow floor system |
-
2015
- 2015-01-09 CN CN201510008751.2A patent/CN104674994A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB481772A (en) * | 1936-12-21 | 1938-03-17 | Evelyn Hurden | Improvements in or relating to the construction of floors and roofs |
| CN101033632A (en) * | 2006-03-08 | 2007-09-12 | 邱则有 | Cavity component for concrete filling |
| CN1857891A (en) * | 2006-05-16 | 2006-11-08 | 吴桥天马纤维水泥制品有限公司 | Chimney of composite material and its making process |
| US20120104281A1 (en) * | 2009-05-05 | 2012-05-03 | Lumito Ab | System, method, and luminescent marker for improved diffuse luminescent imaging or tomography in scattering media |
| CN203284929U (en) * | 2013-05-31 | 2013-11-13 | 湖南紫兴汇建筑材料有限公司 | Quasi-elliptic section internal mold for cast-in-place concrete hollow floor system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123515A (en) * | 2020-01-13 | 2021-07-16 | 中国一冶集团有限公司 | Sheet-shaped folding combined type flat slab core mold and mounting method thereof |
| CN113123515B (en) * | 2020-01-13 | 2023-11-24 | 中国一冶集团有限公司 | Sheet folding combined type girderless floor core mould and mounting method thereof |
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Owner name: TAN YONGJUN Free format text: FORMER OWNER: XIANGTAN ZHONGCHENG HONGXIN BUILDING MATERIAL CO., LTD. Effective date: 20150720 |
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Effective date of registration: 20150720 Address after: 411000 Hunan Province, Xiangtan city Yuetang District Jianxin Plaza 2 Building 2 room 180108 Applicant after: Tan Yongjun Address before: 411000 Hunan Province, Xiangtan city Yuetang District Jianxin Plaza 2 Building 2 room 180108 Applicant before: XIANGTAN ZHONGCHENG HONGXIN BUILDING MATERIAL CO., LTD. |
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